750,000 Shares SPS COMMERCE, INC. Common Stock UNDERWRITING AGREEMENT November 19, 2013

EXHIBIT 1.1

750,000 Shares

SPS COMMERCE, INC.

Common Stock

UNDERWRITING AGREEMENT

November 19, 2013

XXXXXX, XXXXXXXX & COMPANY, INCORPORATED

As representative of the several Underwriters

named in Schedule I hereto

x/x Xxxxxx, Xxxxxxxx & Company, Incorporated

Xxx Xxxxxxxxxx Xxxxxx, Xxxxx 0000

Xxx Xxxxxxxxx, XX 00000

Ladies and Gentlemen:

SPS Commerce, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several underwriters named in Schedule I hereto (the “Underwriters”) for whom you are acting as representative an aggregate of 750,000 shares (the “Firm Shares”) of the common stock, par value $0.001 per share, of the Company (“Common Stock”). The Company also proposes to sell to the several Underwriters, for the sole purpose of covering over-allotments in connection with the sale of the Firm Shares, at the option of the Underwriters, up to an additional 112,500 shares of Common Stock (the “Option Shares”). The Firm Shares and the Option Shares are hereinafter referred to collectively as the “Shares”.

The Company confirms as follows its agreements with Xxxxxx, Xxxxxxxx & Company, Incorporated (the “Representative”) and the several other Underwriters.

1. The Company represents and warrants to, and agrees with, each of the Underwriters that, as of the date hereof and as of the Closing Date and each Option Closing Date, if any:

(a) The Company has prepared and filed with the Securities and Exchange Commission (the “Commission”) a registration statement on Form S-3 (File No. 333-192392), and such amendments to such registration statement as may have been required to the date of this Agreement, under the Securities Act of 1933, as amended (the “Securities Act” or the “Act”), and the rules and regulations of the Commission thereunder (the “Rules and Regulations”). Such registration statement, and each registration statement, if any, increasing the size of the offering and filed pursuant to Rule 462(b) under the Securities Act (a “Rule 462(b) Registration

Statement, at any given time, including any amendments thereto to such time, the exhibits and any schedules thereto at such time, the documents incorporated by reference therein pursuant to Item 12 of Form S-3 under the Act at such time and the documents and information otherwise deemed to be a part thereof or included therein by Rule 430B under the Securities Act (the “Rule 430B Information”) or otherwise pursuant to the Rules and Regulations at such time, is herein called the “Registration Statement.” The Registration Statement at the time it originally became effective is herein called the “Initial Registration Statement.”

The prospectus in the form in which it appeared in the Initial Registration Statement is herein called the “Base Prospectus.” Each preliminary prospectus supplement, if any, to the Base Prospectus (including the Base Prospectus as so supplemented) that described the Shares and the offering thereof, that omitted the Rule 430B Information and that was used prior to the filing of the final prospectus supplement referred to in the following sentence is herein called a “Preliminary Prospectus.” Promptly after the execution and delivery of this Agreement, the Company will prepare and file with the Commission a final prospectus supplement to the Base Prospectus relating to the Shares and the offering thereof in accordance with the provisions of Rule 430B and Rule 424(b) of the Rules and Regulations. Such final supplemental form of prospectus (including the Base Prospectus as so supplemented), in the form filed with the Commission pursuant to Rule 424(b) under the Securities Act is herein called the “Prospectus.” The Base Prospectus, as amended and supplemented immediately prior to the Applicable Time, including any document incorporated by reference therein and any prospectus supplement deemed to be a part thereof, including the final prospectus supplement dated the date hereof, is herein called the “Statutory Prospectus.” For purposes of the definition of Statutory Prospectus, Rule 430B Information contained in a form of prospectus that is deemed retroactively to be a part of the Registration Statement shall be considered to be included in the Statutory Prospectus as of the actual time that form of prospectus is filed with the Commission pursuant to Rule 424(b) under the Securities Act. The General Use Free Writing Prospectus(es) (as defined in Section 1(d) hereof) issued at or prior to the Applicable Time (as defined in Section 1(d) hereof) and the Statutory Prospectus, all considered together are hereinafter called the “Pricing Prospectus.” Any “issuer free writing prospectus” as defined in Rule 433 under the Act, relating to the Shares in the form filed or required to be filed with the Commission or, if not required to be filed, in the form retained in the Company’s records pursuant to Rule 433(g) under the Act is hereinafter called an “Issuer Free Writing Prospectus”. Any reference herein to the Base Prospectus, any Preliminary Prospectus, the Pricing Prospectus, the Statutory Prospectus or the Prospectus shall be deemed to refer to and include the documents incorporated by reference therein pursuant to Item 12 of Form S-3 under the Act as of the date of such prospectus.

For purposes of this Agreement, all references to the Registration Statement, the Base Prospectus, any Preliminary Prospectus, the Prospectus or any amendment or supplement to any of the foregoing shall be deemed to include the copy filed with the Commission pursuant to its Electronic Data Gathering, Analysis and Retrieval System (“XXXXX”). All references in this Agreement to financial statements and schedules and other information that is “described,” “contained,” “included,” “set forth” or “stated” in the Registration Statement, the Base Prospectus, any Preliminary Prospectus or the Prospectus (or other references of like import) shall be deemed to mean and include all such financial statements and schedules and other information that is incorporated by reference in or otherwise deemed by the Rules and

Regulations to be a part of or included in the Registration Statement, the Base Prospectus, any Preliminary Prospectus or the Prospectus, as the case may be; and all references in this Agreement to amendments or supplements to the Registration Statement, the Base Prospectus, any Preliminary Prospectus or the Prospectus shall be deemed to mean and include the subsequent filing of any document under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and which is deemed to be incorporated by reference therein or otherwise deemed by the Rules and Regulations to be a part thereof;

(b) At the time of the filing of the Initial Registration Statement with the Commission, the conditions for use of Form S-3, set forth in the General Instructions thereto, were satisfied. The Initial Registration Statement became automatically effective under the Act upon filing on November 18, 2013. The Company has complied, to the Commission’s satisfaction, with all requests of the Commission for additional or supplemental information. Other than a Rule 462(b) Registration Statement, if any, no other document with respect to the Initial Registration Statement has heretofore been filed with the Commission. No stop order suspending the effectiveness of the Registration Statement or any post-effective amendment thereto or a Rule 462(b) Registration Statement has been issued, and, to the Company’s knowledge, no proceeding for that purpose has been initiated or threatened by the Commission. The Company is a well-known seasoned issuer (as defined in Rule 405 under the Securities Act), eligible to use the Initial Registration Statement as an “automatic shelf registration statement” (as defined in Rule 405 under the Securities Act). The Company has not received notice that the Commission objects to the use of the Initial Registration Statement as an automatic shelf registration statement, and the Company has not otherwise ceased to be eligible to use the automatic shelf registration statement;

(c) No order preventing or suspending the use of any Preliminary Prospectus or any Issuer Free Writing Prospectus has been issued by the Commission, and each Preliminary Prospectus, at the time of filing thereof, conformed in all material respects to the requirements of the Securities Act and the Rules and Regulations, and did not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, however, that this representation and warranty shall not apply to any statements or omissions made in reliance upon and in conformity with information furnished in writing to the Company by an Underwriter through the Representative expressly for use therein, it being understood and agreed that the only such information is that described in Section 9(b) hereof;

(d) For the purposes of this Agreement, the “Applicable Time” is 7:00 p.m. (Eastern time) on the date of this Agreement. As of the Applicable Time, and as of the Closing Date or the Option Closing Date, as the case may be, neither (i) the Pricing Prospectus nor (ii) any individual Limited Use Free Writing Prospectus (as defined below), when considered together with the Pricing Prospectus, included or will include any untrue statement of a material fact or omitted or will omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; and each Issuer Free Writing Prospectus (A) does not conflict with the information contained in the Registration Statement and the Pricing Prospectus, (B) will not conflict with the information

contained in the Prospectus, and (C) as supplemented by and taken together with the Pricing Prospectus as of the Applicable Time, did not include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; and each Broadly available road show, if any, when considered together with the Pricing Prospectus, does not contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, however, that the representations and warranties in this Section 1(d) shall not apply to statements or omissions made in the Pricing Prospectus or an Issuer Free Writing Prospectus in reliance upon and in conformity with information furnished in writing to the Company by an Underwriter through the Representative expressly for use therein, it being understood and agreed that the only such information is that described in Section 9(b) hereof. As used in this subsection and elsewhere in this Agreement:

“Broadly available road show” means a “bona fide electronic road show” as defined in Rule 433(h)(5) under the Act that has been made available without restriction to any person

“General Use Free Writing Prospectus” means any Issuer Free Writing Prospectus that is intended for general distribution to prospective investors, as evidenced by its being so identified on Schedule II to this Agreement.

“Limited Use Free Writing Prospectus” means any Issuer Free Writing Prospectus that is not a General Use Free Writing Prospectus;

(e) The Registration Statement conforms, and the Prospectus and any further amendments or supplements to the Registration Statement or the Prospectus will conform, and any Rule 462(b) Registration Statement will conform, in all material respects to the requirements of the Act and the Rules and Regulations and do not and will not, as of the applicable effective date as to the Registration Statement and any amendment thereto and as of the applicable filing date as to the Prospectus and any amendment or supplement thereto and as of the applicable filing date of any Rule 462(b) Registration Statement and any amendment thereto, contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading; provided, however, that the representations and warranties in this Section 1(e) shall not apply to any statements or omissions made in reliance upon and in conformity with information furnished in writing to the Company by an Underwriter through the Representative expressly for use therein, it being understood and agreed that the only such information is that described in Section 9(b) hereof;

(f) Neither the Company nor any of its subsidiaries has, directly or indirectly, distributed, and none of them will distribute, any offering material in connection with the offering and sale of the Shares other than the Base Prospectus, any Preliminary Prospectus, the Prospectus and other materials, if any, permitted under the Act and consistent with Section 5 below. The Company will file with the Commission all Issuer Free Writing Prospectuses required to be filed in the time and manner required under Rule 433(d) under the Act;

(g) The Company has filed on a timely basis with the Commission all reports, registration statements and other documents required by the Act, the Exchange Act, or the rules and regulations of the Commission promulgated pursuant to the Act or the Exchange Act. All such documents filed by the Company with the Commission, as of the date they were filed, conformed in all material respects to the requirements of the Act or the Exchange Act, as applicable, and the rules and regulations of the Commission thereunder, and none of such documents contained an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein not misleading; provided, however, that this representation and warranty shall not apply to any statements or omissions made in reliance upon and in conformity with information furnished in writing to the Company by an Underwriter through the Representative expressly for use therein; and no such documents were filed with the Commission since the Commission’s close of business on the business day immediately prior to the date of this Agreement and prior to the execution of this Agreement;

(h) Neither the Company nor any of its subsidiaries (i) has sustained since the date of the latest audited financial statements included in the Pricing Prospectus any loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree and (ii) is in violation of its charter or by-laws or in default (or with the giving notice or lapse of time would be in default) under any existing obligation, agreement, covenant or condition contained in any indenture, loan agreement, mortgage, lease or other agreement or instrument to which it is a party or by which it is bound or to which its properties is subject, in each case otherwise than as set forth or contemplated in the Pricing Prospectus, and in each case except for such loss, interference, default or violation as would not, individually or in the aggregate, have a material adverse effect on the business, prospects, properties, operations, assets, condition (financial or otherwise), stockholders’ equity or results of operations of the Company (a “Material Adverse Effect”); and, since the respective dates as of which information is given in the Registration Statement and the Pricing Prospectus, there has not been (A) any change in the capital stock or long-term debt of the Company or any of its subsidiaries, other than the expiration of or grants of stock options to employees of the Company pursuant to the Company’s equity incentive plans in the ordinary course of business and the issuance of shares of Common Stock upon the exercise of warrants and stock options by existing security holders of the Company in the ordinary course of business, or (B) any material adverse change, or any development reasonably expected to result in a material adverse change, in or affecting the business, prospects, operations, assets, condition (financial or otherwise) or results of operations of the Company, otherwise than as set forth or contemplated in the Pricing Prospectus;

(i) Neither the Company nor any of its subsidiaries owns any real property. Each of the Company and its subsidiaries has good and marketable title to all personal property owned by it, in each case free and clear of all liens, encumbrances and defects except such as are described in the Pricing Prospectus or such as do not materially affect the value of such property and do not interfere with the use made and proposed to be made of such property by the Company or any of its subsidiaries. Any real property and buildings held under lease by the Company or any of its subsidiaries are held by it under valid, subsisting and enforceable leases with such exceptions as are not material and do not interfere with the use made and proposed to be made of such property and buildings by the Company or such subsidiary;

(j) The Company and each of its subsidiaries has been duly incorporated and is validly existing as a corporation in good standing under the laws of the jurisdiction in which it is chartered or organized, with power and authority (corporate and other) to own, lease and operate its properties and conduct its business as described in the Pricing Prospectus, and is duly qualified as a foreign corporation for the transaction of business and is in good standing under the laws of each other jurisdiction in which it owns or leases properties or conducts any business so as to require such qualification, except where the failure to be so qualified and in good standing in any such jurisdiction would not have, individually or in the aggregate, a Material Adverse Effect;

(k) Neither the Company nor any of its subsidiaries owns, and as of the Closing Date and the Option Closing Date, as the case may be, none of them will own, directly or indirectly, any shares of stock or any other equity or long-term debt securities of any corporation or have any equity interest in any corporation, firm, partnership, joint venture, association or other entity, other than, with respect to the Company, 100% of the equity interests of each of its subsidiaries;

(l) The Company has the authorized, and issued and outstanding capital stock as set forth in the Pricing Prospectus by the incorporation by reference of the Company’s Registration Statement on Form 8-A filed with the SEC on April 19, 2010 (including any amendments or reports filed for the purpose of updating the description) (the “Form 8-A”); all of the issued shares of capital stock of the Company (i) have been duly authorized and validly issued, (ii) are fully paid and non-assessable, and (iii) were issued in compliance with all applicable state and federal securities laws or an exemption thereto; all of the issued shares of Common Stock conform to the description of the Common Stock that is contained in the Pricing Prospectus and that will be contained in the Prospectus, in each case by the incorporation by reference of the Form 8-A; and none of the holders of capital stock of the Company are entitled to receive any liquidation preference payment solely by virtue of the consummation of the offering contemplated in this Agreement;

(m) The Shares have been duly authorized, were validly issued and are fully paid and non-assessable and conform to the description of the Common Stock that is contained in the Pricing Prospectus and that will be contained in the Prospectus; and no restrictions (other than under federal and state securities laws) upon the voting or transfer of, any of the Shares or the sale thereof exist or will exist prior to or the Closing Date or the Option Closing Date, as the case may be, with respect to such Shares;

(n) The compliance by the Company with all of the provisions of this Agreement and the consummation of the transactions herein contemplated will not violate any statute or any order, rule or regulation of any court or governmental agency or body having jurisdiction over the Company, any of its subsidiaries or any of their properties, or conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, or give rise to a right of termination under, or result in the acceleration of any obligation

under any statute, indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or affected or to which any of the property or assets of the Company or any of its subsidiaries is subject or affected, except for such breaches or violations as would not, individually or in the aggregate, have a Material Adverse Effect, nor will such action result in any violation of the provisions of the Certificate of Incorporation or By-laws of the Company or any of its subsidiaries;

(o) No consent, approval, authorization, order, registration, qualification, permit, license, exemption, filing or notice (each an “Authorization”) of, from, with or to any court, tribunal, government, governmental or regulatory authority, self-regulatory organization or body is required for the issue and sale of the Shares or the consummation by the Company of the transactions contemplated by this Agreement, except (A) the registration of the Shares under the Act; (B) such Authorizations as may be required under state securities or Blue Sky laws in connection with the purchase and distribution of the Shares by the Underwriters; and (C) such other Authorizations the absence of which would not, individually or in the aggregate, have a Material Adverse Effect; and no event has occurred, nor is any proceeding, to the best of the knowledge of the Company, pending or threatened, that allows or results in, or after notice or lapse of time or both would allow or result in, revocation, suspension, termination or invalidation of any such Authorization or any other impairment of the rights of the holder or maker of any such Authorization;

(p) The Company has full corporate power and authority to enter into this Agreement. This Agreement has been duly authorized, executed and delivered by the Company and constitutes a valid and binding agreement of the Company, enforceable against the Company in accordance with the terms hereof. All actions (including those of stockholders) necessary for the Company to consummate the transactions contemplated in this Agreement have been taken and are in effect;

(q) The conditions for use of Form S-3, set forth in the General Instructions thereto, have been satisfied. Each of the Registration Statement and any post-effective amendment thereto has become effective under the Securities Act and no stop order suspending the effectiveness of the Registration Statement or any post-effective amendment thereto has been issued under the Securities Act and no proceedings for that purpose have been instituted or are pending or, to the knowledge of the Company, are threatened by the Commission, and any request on the part of the Commission for additional information has been complied with;

(r) Neither the Company nor any of its subsidiaries is (A) in violation of its Certificate of Incorporation or By-laws or other organizational documents or (B) in default in the performance or observance of any material obligation, agreement, covenant or condition contained in any agreement or instrument to which it is a party or by which it or any of its properties may be bound or affected or any indenture, mortgage, deed of trust, loan agreement, lease or other agreement, except for such violations or defaults that would not, individually or in the aggregate, have a Material Adverse Effect. Each of the Company and its subsidiaries has in effect controls and procedures for ensuring compliance in all material respects with any agreement or instrument to which it is a party or by which it or any of its properties may be bound or affected or any indenture, mortgage, deed of trust, loan agreement, lease or other agreement, except for such agreements the breach of which would not, individually or in the aggregate, have a Material Adverse Effect;

(s) The statements that are set forth in the Pricing Prospectus, and that will be set forth in the Prospectus, describing the Company’s capital stock by the incorporation by reference of the Form 8-A, insofar as they purport to constitute a summary of the terms of the Common Stock, and under the caption “Underwriting”, insofar as they purport to describe the provisions of the laws and documents referred to therein, are (in the case of the Pricing Prospectus) or will be (in the case of the Prospectus), as the case may be, accurate, complete and fair;

(t) Except as is disclosed in the Pricing Prospectus and will be disclosed in the Prospectus, there are no legal or governmental proceedings pending to which the Company or any of its subsidiaries is a party or of which any property of the Company or any of its subsidiaries is the subject which, if determined adversely to the Company or such subsidiary, could reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect, or would materially and adversely affect the ability of the Company or such subsidiary to perform its obligations under this Agreement, or which are otherwise material in the context of the sale of the Shares; and to the best of the knowledge of the Company and each of its subsidiaries, no such proceedings are threatened or contemplated by governmental authorities or threatened by others;

(u) Except as is disclosed in the Pricing Prospectus, and will be disclosed in the Prospectus, (i) the Company owns or possesses adequate rights to use all trademarks, trade names, inventions, copyrights, know-how (including trade secrets and other unpatented and/or unpatentable proprietary or confidential information, systems or procedures), licenses, approvals and governmental authorizations to conduct its business as now conducted and none of the foregoing intellectual property rights owned or possessed by the Company which is material to the Company or any of its subsidiaries is invalid or unenforceable; to the Company’s knowledge, neither the Company nor any of its subsidiaries is infringing any third party’s patents or patent applications; neither the Company nor any of its subsidiaries is infringing any third party’s trademarks, trade name rights, inventions, copyrights, licenses, trade secrets or other similar rights of others, (iii) neither the Company nor any of its subsidiaries is engaging in any improper use of data obtained by it from customers or other third parties or through its own survey collection efforts, (iv) neither the Company nor any of its subsidiaries is aware of any infringement, misappropriation or violation by others of, or conflict by others with rights of the Company or any of its subsidiaries with respect to, any of the foregoing intellectual property rights, where such infringement would reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect, and (v) there is no claim being made against the Company or any of its subsidiaries, or to the best of the knowledge of the Company and each of its subsidiaries, any employee of the Company or any of its subsidiaries, regarding trademark, trade name, patent, inventions, copyright, license, trade secret or other infringement or improper use of any data obtained by the Company or any of its subsidiaries from third parties which would reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect. Neither the Company nor any of its subsidiaries has any patents or patent applications;

(v) All current employees, consultants and contractors of the Company and each of its subsidiaries have executed written instruments with the Company that assign to the Company all rights, title and interest in and to any and all (i) inventions, improvements, discoveries, writings and other works of authorship, and information relating to the business of the Company and each of its subsidiaries or any of the products or services being researched, developed or sold by the Company or any of its subsidiaries or that may be used with any such products or services and (ii) any intellectual property and/or proprietary rights related thereto, including but not limited to trademarks, trade names, patents, patent applications, inventions, copyrights and know-how (including trade secrets and other unpatented and/or unpatentable proprietary or confidential information, systems or procedures). To the knowledge of the Company and each of its subsidiaries, all former employees, consultants and contractors of the Company and each of its subsidiaries have executed written instruments with the Company that assign to the Company all rights, title and interest in and to any and all (i) inventions, improvements, discoveries, writings and other works of authorship, and information relating to the business of the Company and each of its subsidiaries or any of the products or services being researched, developed or sold by the Company and its subsidiaries or that may be used with any such products or services and (ii) any intellectual property and/or proprietary rights related thereto, including but not limited to trademarks, trade names, patents, patent applications, inventions, copyrights and know-how (including trade secrets and other unpatented and/or unpatentable proprietary or confidential information, systems or procedures), except to the extent that failure to execute such written instruments would not have a Material Adverse Effect;

(w) Except as is disclosed in the Pricing Prospectus and will be disclosed in the Prospectus, there are no contracts, agreements or understandings between the Company or any of its subsidiaries and any person that materially restrict the Company’s ability to conduct its business as described in the Pricing Prospectus;

(x) The Company and each of its subsidiaries possesses all certificates, certifications, registrations, notifications, orders, licenses, authorizations, approvals and permits (collectively, “Permits”) issued by the appropriate federal, state, local or foreign regulatory authorities necessary to conduct its business and such Permits are valid and in full force and effect, except for Permits where the failure to possess, or the invalidity of which, individually or in the aggregate, would not have a Material Adverse Effect. The Company and each of its subsidiaries is in compliance in all respects with the terms and conditions of such Permits, except where the failure to comply would not have a Material Adverse Effect. Neither the Company nor any of its subsidiaries has received any notice of proceedings relating to the revocation or modification of any such Permit which, individually or in the aggregate, if the subject of an unfavorable decision, ruling or finding, would have a Material Adverse Effect;

(y) The Company and each of its subsidiaries is insured against such losses and risks and in such amounts as each of the Company and such subsidiaries reasonably believes are prudent and customary in the business in which it is engaged; and neither the Company nor any of its subsidiaries has any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not have a Material Adverse Effect;

(z) The Company and each of its subsidiaries (i) is in compliance with any and all applicable foreign, federal, state and local laws and regulations relating to the protection of human health and safety, the environment or hazardous or toxic substances or wastes, pollutants or contaminants (“Environmental Laws”), (ii) has received all Permits required of it under applicable Environmental Laws to conduct its business and (iii) is in compliance in all respects with any such Permit, except where such noncompliance with Environmental Laws, failure to receive required Permits, or failure to comply with the terms and conditions of such Permits would not have, individually or in the aggregate, a Material Adverse Effect;

(aa) There are no costs or liabilities associated with Environmental Laws (including, without limitation, any capital or operating expenditures required for clean-up, closure of properties or compliance with Environmental Laws or any Permit, any related constraints on operating activities and any potential liabilities to third parties) which would, individually or in the aggregate, have a Material Adverse Effect;

(bb) The Company and each of its subsidiaries has filed all federal, state, local and foreign tax returns which have been required to be filed and has paid or made provision to pay all taxes and assessments received by it to the extent that such taxes or assessments have become due, except where the failure to file such returns or pay, or make provision to pay, all such taxes and assessments would not have a Material Adverse Effect. Neither the Company nor any of its subsidiaries has any tax deficiency which has been or, to the best of the knowledge of the Company and its subsidiaries, might be asserted or threatened against it which would reasonably be expected to have a Material Adverse Effect;

(cc) The liabilities of the Company and each of its subsidiaries to their customers are as set forth in the Company’s standard form of Master Services Agreement and in the Prospectus, except as would not, individually or in the aggregate, have a Material Adverse Effect;

(dd) The Company is not and, after giving effect to the offering and sale of the Shares and the application of the proceeds thereof, will not be an “investment company”, as such term is defined in the Investment Company Act of 1940, as amended;

(ee) At the time of filing the Initial Registration Statement, the Company was not an “ineligible issuer,” and is a “well-known seasoned issuer”, in each case as defined in Rule 405 under the Securities Act;

(ff) Except as disclosed in the Pricing Prospectus, there are no contracts, agreements or understandings between the Company or any of its subsidiaries and any person granting such person the right to require the Company to file a registration statement under the Securities Act with respect to any securities of the Company or its subsidiaries or to require the Company to include such securities with the Shares registered pursuant to the Initial Registration Statement other than as have been waived in writing in connection with the offering contemplated hereby;

(gg) Xxxxx Xxxxxxxx LLP, who have certified certain financial statements of the Company, are independent public accountants as required by the Securities Act and the Rules and Regulations;

(hh) KPMG LLP are independent public accountants as required by the Securities Act and the Rules and Regulations;

(ii) The financial statements of the Company (including all notes and schedules thereto) included in the Registration Statement, the Pricing Prospectus and Prospectus comply in all material respects with the requirements of the Securities Act and the Exchange Act and present fairly the financial position of the Company at the dates indicated and the statement of operations, stockholders’ equity and cash flows of the Company for the periods specified are in conformity with generally accepted accounting principles, consistently applied throughout the periods involved; and the selected financial data that are included in the Registration Statement and the Pricing Prospectus and that will be included in the Prospectus, (i) are, in the case of the financial information for the years ended December 31, 2010, December 31, 2011 and December 31, 2012, derived from the consolidated financial statements that are set forth in the Registration Statement and the Pricing Prospectus and that will be set forth in the Prospectus, (ii) are, in the case of financial information for the years ended December 31, 2008 and December 31, 2009, complete and accurate in all respects and fairly present the financial condition of the Company at the respective dates thereof and the results of the Company’s operations for the periods then ended and were prepared in accordance with the books and records of the Company in conformity with generally accepted accounting principles, consistently applied during the periods covered thereby except for the omission of footnotes and normal year-end adjustments which are not, individually and in the aggregate, material. All financial statements or schedules of the Company which are required by the Act or the rules and regulations of the Commission thereunder to be included in the Registration Statement, the Preliminary Prospectus or the Prospectus have been or, in the case of the Prospectus, will be so included. The interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Registration Statement, the Pricing Prospectus and the Prospectus fairly presents the information called for in all material respects and has been prepared in accordance with the Commission’s rules and guidelines applicable thereto;

(jj) The Company is fully compliant in all respects with applicable laws, rules and regulations of the Commission regarding internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act). Except as is disclosed in the Pricing Prospectus and will be disclosed in the Prospectus, the Company is not aware of any material weaknesses in its internal control over financial reporting;

(kk) Since the date of the latest audited financial statements of the Company included in the Pricing Prospectus, there has been no change in the internal control over financial reporting of the Company or any of its subsidiaries that has materially diminished, or is reasonably likely to materially diminish, the effectiveness of the internal control over financial reporting of the Company or any of its subsidiaries (other than as set forth in the Pricing Prospectus);

(ll) The Company and each of its subsidiaries maintains disclosure controls and procedures (as such term is defined in Rule 13a-15(e) under the Exchange Act) that comply with the requirements of the Exchange Act; such disclosure controls and procedures have been designed to ensure that material information relating to the Company and each of its subsidiaries is made known to the Company’s principal executive officer and principal financial officer by others within the Company; and such disclosure controls and procedures are effective;

(mm) The Company and each of its subsidiaries is in compliance with all currently effective provisions of the Xxxxxxxx-Xxxxx Act of 2002 and the rules and regulations promulgated thereunder that are applicable, or will be applicable to the Company as of the Closing Date or the Option Closing Date, as the case may be;

(nn) There are no off-balance sheet arrangements, outstanding guarantees or other contingent obligations of the Company or any of its subsidiaries that could reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect;

(oo) The Company’s Chief Executive Officer and Chief Financial Officer have reviewed and agreed with the selection, application and disclosure of critical accounting policies and have consulted with the Company’s independent registered public accounting firm with regard to such disclosure;

(pp) No relationship, direct or indirect, exists between or among the Company or any of its subsidiaries, on the one hand, and the directors, officers, stockholders, customers or suppliers of the Company or any of its subsidiaries, on the other hand, which is required to be described in the Registration Statement, the Pricing Prospectus and the Prospectus and which is not so described. There are no outstanding loans, advances or guarantees of indebtedness by the Company or any of its subsidiaries to or for the benefit of any of the executive officers or directors of the Company or any of its subsidiaries;

(qq) To the knowledge of the Company and its subsidiaries, no person associated with or acting on behalf of the Company, including without limitation any director, officer, agent or employee of the Company or any of its subsidiaries has, directly or indirectly, while acting on behalf of the Company or any of its subsidiaries (A) used any corporate funds for unlawful contributions, gifts, entertainment or other unlawful expenses relating to political activity, (B) made any unlawful payment to foreign or domestic government officials or employees or to foreign or domestic political parties or campaigns from corporate funds, (C) violated any provision of the Foreign Corrupt Practices Act of 1977, as amended or (D) made any other unlawful payment;

(rr) Except as contemplated by this Agreement and as is disclosed in the Pricing Prospectus and will be disclosed in the Prospectus, no person is entitled to receive from the Company or any of its subsidiaries a brokerage commission, finder’s fee or other like payment in connection with the transactions contemplated herein;

(ss) Neither the Company nor any of its subsidiaries conducts business with the government of, or with any person located in any country in a manner that violates in any material respect any of the economic sanctions programs or similar sanctions-related measures of the United States as administered by the United States Treasury Department’s Office of Foreign Assets Control;

(tt) There is no document, contract, permit or instrument of a character required to be described in the Initial Registration Statement, the Pricing Prospectus or the Prospectus or to be filed as an exhibit to the Initial Registration Statement which is not (or, in the case of the Prospectus, will not be) described or filed as required. All such contracts described (or, in the case of the Prospectus, to be described) in the Initial Registration Statement, the Pricing Prospectus or the Prospectus or filed as exhibits to the Initial Registration Statement to which the Company or any of its subsidiaries is a party have been duly authorized, executed and delivered by the Company or such subsidiary, constitute valid and binding agreements of the Company or such subsidiary and are enforceable against and by the Company or such subsidiary in accordance with the terms thereof;

(uu) Except for stock issuances disclosed in the Initial Registration Statement, the Pricing Prospectus or the Prospectus, the Company has not sold or issued any shares of Common Stock during the six-month period preceding the date of the Prospectus, including any sales pursuant to Rule 144A, or Regulations D or S, under the Act, other than any shares of Stock issued upon exercise of warrants and stock options granted pursuant to the Company’s equity incentive plans, which warrants and equity incentive plans are described in the Pricing Prospectus and will be described in the Prospectus;

(vv) Statistical, industry-related and market-related data included in the Initial Registration Statement, the Pricing Prospectus and the Prospectus are (or, in the case of the Prospectus, will be) based on or derived from sources which the Company reasonably and in good faith believes are reliable and accurate in all material respects;

(ww) Neither the Company nor any of its subsidiaries has distributed, and none of them will distribute prior to the Closing Date and completion of the distribution of the Shares, any offering material in connection with the offering and sale of the Shares other than any Preliminary Prospectuses, the Prospectus, the Registration Statement and Issuer Free Writing Prospectuses listed in Schedule II hereto;

(xx) None of the Company, any of its subsidiaries or any of their directors, officers or controlling persons has taken, directly or indirectly, any action designed, or which would reasonably be expected, to cause or result, under the Act or otherwise, in, or which has constituted, stabilization or manipulation of the price of any security of the Company;

(yy) (i) Each employee benefit plan, within the meaning of Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), for which the Company or any member of its “Controlled Group” (defined as any organization which is a member of a controlled group of corporations within the meaning of Section 414 of the Internal

Revenue Code of 1986, as amended (the “Code”)) would have any liability (each, a “Plan”) has been maintained in material compliance with its terms and the requirements of any applicable statutes, orders, rules and regulations, including but not limited to ERISA and the Code; (ii) no prohibited transaction, within the meaning of Section 406 of ERISA or Section 4975 of the Code, has occurred with respect to any Plan excluding transactions effected pursuant to a statutory or administrative exemption; (iii) for each Plan that is subject to the funding rules of Section 412 of the Code or Section 302 of ERISA, no material “accumulated funding deficiency” as defined in Section 412 of the Code, whether or not waived, has occurred or is reasonably expected to occur; (iv) the fair market value of the assets of each Plan exceeds the present value of all benefits accrued under such Plan (determined based on those assumptions used to fund such Plan); (v) no “reportable event” (within the meaning of Section 4043(c) of ERISA) has occurred or is reasonably expected to occur; and (vi) neither the Company nor any member of the Controlled Group has incurred, nor reasonably expects to incur, any material liability under Title IV of ERISA (other than contributions to the Plan or premiums to the PBGC, in the ordinary course and without default) in respect of a Plan (including a “multiemployer plan”, within the meaning of Section 4001(a)(3) of ERISA);

(zz) Neither the Company nor any of its subsidiaries does business with the government of Cuba or with any person located in Cuba within the meaning of Section 517.075, Florida Statutes;

(aaa) Copies of the minute books of the Company have been furnished to counsel for the Underwriters, and such books (i) contain all minutes and written actions of the board of directors (including each committee thereof) of the Company prepared since the time of its incorporation and (ii) accurately reflect all matters referred to in such minutes;

(bbb) The Company has no subsidiaries other than SPS Commerce Australia Pty Ltd, SPS Commerce Hong Kong Limited, SPS International, Inc., Edifice Europe Limited, Edifice Japan G.K. and SPS Ukraine LLC; and

(ccc) No forward-looking statement (within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act) made by the Company or any of its officers or directors contained in the Registration Statement, the Prospectus or the Pricing Prospectus, or made available to the public generally since April 22, 2010, has been made or reaffirmed without a reasonable basis or has been disclosed other than in good faith.

2. Subject to the terms and conditions herein set forth, (a) the Company agrees to sell to each of the Underwriters, and each of the Underwriters agrees, severally and not jointly, to purchase from the Company, at a purchase price per share of $63.65 (the “Purchase Price”), the number of Firm Shares as set forth opposite the name of such Underwriter in Schedule I hereto and (b) in the event and to the extent that the Underwriters shall exercise the election to purchase Option Shares as provided below, the Company agrees to sell to each of the Underwriters, and each of the Underwriters agrees, severally and not jointly, to purchase from the Company, at the Purchase Price, the number of Option Shares (to be adjusted by you so as to eliminate fractional shares) determined by multiplying the number of Option Shares as to which such election shall have been exercised by a fraction, the numerator of which is the aggregate number of Firm Shares to be purchased by such Underwriter as set forth opposite the name of such Underwriter in Schedule I hereto and the denominator of which is the aggregate number of Firm Shares to be purchased by all of the Underwriters from the Company hereunder.

The Company hereby grants to the Underwriters the right to purchase at their election up to 112,500 Option Shares, at the Purchase Price, for the sole purpose of covering over-allotments in connection with the sale of the Firm Shares. The Underwriters may exercise their option to acquire Option Shares in whole or in part from time to time only by written notice from the Representative to the Company, given within a period of 30 calendar days after the date of this Agreement and setting forth the aggregate number of Option Shares to be purchased and the date on which such Option Shares are to be delivered, as determined by the Representative but in no event earlier than the Closing Date or, unless the Representative and the Company otherwise agree in writing, earlier than two or later than ten business days after the date of such notice.

3. It is understood that the several Underwriters propose to offer the Firm Shares for sale to the public upon the terms and conditions set forth in the Prospectus.

4. The Company will deliver the Firm Shares to the Representative through the facilities of the Depository Trust Company (“DTC”) for the accounts of the Underwriters, against payment of the purchase price therefor in Federal (same day) funds by official bank check or checks or wire transfer drawn to the order of the Company, at 10:00 A.M., New York time, on November 25, 2013, or at such other time not later than seven full business days thereafter as the Representative and the Company determine, such time being herein referred to as the “Closing Date”. For purposes of Rule 15c6-1 under the Exchange Act, the Closing Date (if later than the otherwise applicable settlement date) shall be the settlement date for payment of funds and delivery of securities for all the Firm Shares. The certificates for the Firm Shares so to be delivered will be in definitive form, in such denominations and registered in such names as the Representative requests and will be made available for checking and packaging at the office of DTC or its designated custodian at least 24 hours prior to the Closing Date. The documents to be delivered on the Closing Date by or on behalf of the parties hereto pursuant to Section 8 hereof, including the cross-receipt for the Shares and any additional documents requested by the Representative pursuant to Section 8(m) hereof, will be delivered at the offices of Xxxxxxx Procter LLP, 00 Xxxxx Xxxxxx, Xxxxxx, XX 00000.

Each time for the delivery of and payment for the Option Shares, being herein referred to as an “Option Closing Date”, which may be the Closing Date, shall be determined by the Representative as provided above. The Company will deliver the Option Shares being purchased on each Option Closing Date to the Representative through the facilities of DTC for the accounts of the Underwriters, against payment of the purchase price therefor in Federal (same day) funds by official bank check or checks or wire transfer drawn to the order of the Company, at 10:00 A.M., New York time on the applicable Option Closing Date. The certificates for the Option Securities so to be delivered will be in definitive form, in such denominations and registered in such names as the Representative requests and will be made available for checking and packaging at the office of DTC or its designated custodian at least 24 hours prior to such Option Closing Date. The documents to be delivered on the Option Closing Date by or on behalf of the parties hereto pursuant to Section 8 hereof, including the cross-receipt for the Shares and any additional documents requested by the Representative pursuant to Section 8(m) hereof, will be delivered at the offices of Xxxxxxx Procter LLP, 00 Xxxxx Xxxxxx, Xxxxxx, XX 00000.

5. The Company covenants and agrees with each of the Underwriters as follows:

(a) The Company will notify the Representative immediately, and confirm the notice in writing, (i) when any amendment to the Registration Statement or any Rule 462(b) Registration Statement has been filed or shall become effective, or any supplement to the Prospectus or any amended prospectus shall have been filed, to furnish the Representative with copies thereof, and to file promptly all material required to be filed by the Company with the Commission pursuant to Rule 433(d) under the Securities Act, (ii) of the receipt of any comments from the Commission relating to the Registration Statement, any Rule 462(b) Registration Statement or any prospectus or prospectus supplement filed thereunder, (iii) of any request by the Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus or for additional information, and (iv) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or of any order preventing or suspending the use of any Preliminary Prospectus, or of the suspension of the qualification of the Shares for offering or sale in any jurisdiction, or of the initiation or threatening of any proceedings for any of such purposes. The Company will promptly effect the filings necessary pursuant to Rule 424(b) under the Securities Act and will take such steps as it deems necessary to ascertain promptly whether the form of prospectus transmitted for filing under Rule 424(b) was received for filing by the Commission and, in the event that it was not, it will promptly file such prospectus. The Company will make every reasonable effort to prevent the issuance of any stop order and, if any stop order is issued, to obtain the lifting thereof at the earliest possible moment. If the Company has omitted any information from the Registration Statement pursuant to Rule 430B, the Company will comply with the provisions of and make all requisite filings with the Commission pursuant to said Rule 430B and notify the Representative promptly of all such filings.

(b) The Company will give the Representative notice of its intention to file or prepare any amendment to the Registration Statement (including any Rule 462(b) Registration Statement), or any amendment, supplement or revision to the Prospectus, or any Issuer Free Writing Prospectus, will furnish the Representative with copies of any such documents a reasonable amount of time prior to such proposed filing or use, as the case may be, and will not file or use any such document to which the Representative or counsel for the Underwriters shall reasonably object.

(c) The Company will use its best efforts to qualify the Shares for offering and sale under the securities laws of such jurisdictions as you may reasonably request and to comply with such laws so as to permit the continuance of sales and dealings therein in such jurisdictions for as long as may be necessary to complete the distribution of the Shares, provided that nothing in this Section 5(c) shall require the Company to qualify as a foreign corporation in any jurisdiction in which it is not already so qualified, or to file a general consent to service of process in any jurisdiction.

(d) The Company has furnished or will deliver to the Representative, without charge, two signed copies of the Registration Statement as originally filed, any Rule 462(b) Registration Statement and of each amendment to each (including exhibits filed therewith or incorporated by reference therein) and signed copies of all consents and certificates of experts, and will also, upon your request, deliver to the Representative, without charge, a conformed copy of the Registration Statement as originally filed and of each amendment thereto (without exhibits) for each of the Underwriters. The copies of the Registration Statement and each amendment thereto furnished to the Underwriters will be identical to the electronically transmitted copies thereof filed with the Commission pursuant to XXXXX, except to the extent permitted by Regulation S-T.

(e) The Company has delivered to each Underwriter, without charge, as many written and electronic copies of each Preliminary Prospectus as such Underwriter reasonably requested, and the Company hereby consents to the use of such copies for purposes permitted by the Securities Act. The Company will furnish to each Underwriter, without charge, prior to 5:00 P.M. on the business day next succeeding the date of this Agreement and from time to time thereafter during the period when the Prospectus is required to be delivered in connection with sales of the Shares under the Securities Act or the Exchange Act or in lieu thereof, the notice referred to in Rule 173(a) under the Securities Act, such number of written and electronic copies of the Prospectus (as amended or supplemented) as such Underwriter may reasonably request. The Prospectus and any amendments or supplements thereto furnished to the Underwriters will be identical to the electronically transmitted copies thereof filed with the Commission pursuant to XXXXX, except to the extent permitted by Regulation S-T.

(f) The Company will comply with the Securities Act and the Rules and Regulations so as to permit the completion of the distribution of the Shares as contemplated in this Agreement and in the Prospectus. If at any time when, in the opinion of counsel for the Underwriters, a prospectus is required to be delivered in connection with sales of the Shares under the Securities Act or the Exchange Act (or in lieu thereof, the notice referred to in Rule 173(a) under the Securities Act), any event shall occur or condition shall exist as a result of which it is necessary, in the opinion of counsel for the Underwriters or for the Company, to amend the Registration Statement or amend or supplement the Prospectus in order that the Prospectus will not include any untrue statements of a material fact or omit to state a material fact necessary in order to make the statements therein not misleading in the light of the circumstances existing at the time it (or in lieu thereof, the notice referred to in Rule 173(a) under the Securities Act) is delivered to a purchaser, or if it shall be necessary, in the opinion of either such counsel, at any such time to amend the Registration Statement or amend or supplement the Prospectus in order to comply with the requirements of the Securities Act or the Rules and Regulations, the Company will promptly prepare and file with the Commission, subject to Section 5(b), such amendment or supplement as may be necessary to correct such statement or omission or to make the Registration Statement or the Prospectus comply with such requirements, and the Company will furnish to the Underwriters such number of written and electronic copies of such amendment or supplement as the Underwriters may reasonably request. The Company will provide the Representative with notice of the occurrence of any event during the period specified above that may give rise to the need to amend or supplement the Registration Statement or the Prospectus as provided in the preceding sentence promptly after the occurrence of such event.

(g) The Company will make generally available (within the meaning of Section 11(a) of the Securities Act) to its security holders and to the Representative as soon as practicable, but not later than 45 days after the end of its fiscal quarter in which the first anniversary date of the effective date of the Registration Statement occurs, an earnings statement (in form complying with the provisions of Rule 158 under the Securities Act) covering a period of at least twelve consecutive months beginning after the effective date of the Registration Statement.

(h) The Company will use the net proceeds received by it from the sale of the Shares in the manner specified in the Pricing Prospectus under the heading “Use of Proceeds”.

(i) The Company will use its best efforts to effect and maintain the listing of the Common Stock (including the Shares) on the NASDAQ Global Market.

(j) During a period of 90 days from the date of the Prospectus, the Company will not, without the prior written consent of the Representative, (i) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend or otherwise transfer or dispose of, directly or indirectly, any Common Stock or any securities convertible into or exercisable or exchangeable for Common Stock or (ii) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of Common Stock, whether any such transaction described in clause (i) or (ii) above is to be settled by delivery of Common Stock or such other securities, in cash or otherwise, other than (1) the Shares to be sold hereunder, (2) the issuance of awards to acquire shares of Common Stock granted pursuant to the Company’s benefit plans existing on the date hereof that are referred to in the Prospectus, as such plans may be amended or (3) the issuance of shares of Common Stock in connection with such awards. Notwithstanding the foregoing, if (A) during the last 17 days of the 90-day restricted period the Company issues an earnings release or material news or a material event relating to the Company occurs; or (B) prior to the expiration of the 90-day restricted period, the Company announces that it will release earnings results during the 16-day period beginning on the last day of the 90-day period, the restrictions imposed by this agreement shall continue to apply until the expiration of the 18-day period beginning on the issuance of the earnings release or the occurrence of the material news or material event unless waived in writing by the Representative. The Company shall promptly notify the Representative of any earnings release, news or event that may give rise to an extension of the initial 90-day restricted period.

(k) If the Representative, in its sole discretion, agrees to release or waive the restrictions set forth in a “lock-up” agreement described in Section 8(l) hereof for an officer or director of the Company and provides the Company with notice of the impending release or waiver at least three business days before the effective date of the release or waiver, the Company agrees to announce the impending release or waiver by a press release substantially in the form of Exhibit C hereto through a major news service at least two business days before the effective date of the release or waiver.

(l) The Company, during the period when the Prospectus is required to be delivered in connection with sales of the Shares under the Securities Act or the Exchange Act (or in lieu thereof, the notice referred to in Rule 173(a) under the Securities Act), will file all documents required to be filed with the Commission pursuant to the Exchange Act within the time periods required by the Exchange Act and the rules and regulations of the Commission thereunder.

(m) During a period of five years from the effective date of the Registration Statement, unless otherwise publicly available in electronic format on the website of the Company or the Commission, the Company will furnish to you copies of all reports or other communications (financial or other) furnished to shareholders generally, and to deliver to you (i) as soon as they are available, copies of any reports and financial statements furnished to or filed with the Commission or any national securities exchange on which any class of securities of the Company is listed; and (ii) such additional information concerning the business and financial condition of the Company as you may from time to time reasonably request (such financial statements to be on a consolidated basis to the extent the accounts of the Company and its subsidiaries are consolidated in reports furnished to its shareholders generally or to the Commission).

(n) If the Company elects to rely upon Rule 462(b) under the Securities Act, the Company will file a Rule 462(b) Registration Statement with the Commission in compliance with Rule 462(b) by 10:00 P.M., Washington, D.C. time, on the date of this Agreement, and at the time of filing either to pay to the Commission the filing fee for the Rule 462(b) Registration Statement or to give irrevocable instructions for the payment of such fee pursuant to Rule 111(b) under the Securities Act.

(o) If so requested by the Representative, the Company shall cause to be prepared and delivered, at its expense, within one business day from the effective date of this Agreement, to the Representative an “electronic Prospectus” to be used by the Underwriters in connection with the offering and sale of the Shares. As used herein, the term “electronic Prospectus” means a form of the most recent Preliminary Prospectus, any Issuer Free Writing Prospectus or the Prospectus, and any amendment or supplement thereto, that meets each of the following conditions: (i) it shall be encoded in an electronic format, satisfactory to the Representative, that may be transmitted electronically by the Representative and the other Underwriters to offerees and purchasers of the Shares, (ii) it shall disclose the same information as such paper Preliminary Prospectus, Issuer Free Writing Prospectus or the Prospectus, as the case may be; and (iii) it shall be in or convertible into a paper format or an electronic format, satisfactory to the Representative, that will allow investors to store and have continuously ready access to such Preliminary Prospectus, Issuer Free Writing Prospectus or the Prospectus at any future time, without charge to investors (other than any fee charged for subscription to the Internet generally or any software required to view the electronic Prospectus). The Company hereby confirms that, if so requested by the Representative, it has included or will include in the Prospectus filed with the Commission an undertaking that, upon receipt of a request by an investor or his or her representative, the Company shall transmit or cause to be transmitted promptly, without charge, a paper copy of such paper Preliminary Prospectus, Issuer Free Writing Prospectus or the Prospectus to such investor or representative.

(p) Upon request of any Underwriter, to furnish, or cause to be furnished, to such Underwriter an electronic version of the Company’s trademarks, servicemarks and corporate logo for use on the website, if any, operated by such Underwriter for the purpose of facilitating the on-line offering of the Shares (the “License”); provided, however, that the License shall be used solely for the purpose described above, is granted without any fee and may not be assigned or transferred.

6. (a) The Company represents and agrees that, without the prior consent of the Representative, it has not made and will not make any offer relating to the Shares that would constitute a “free writing prospectus” as defined in Rule 405 under the Securities Act; each Underwriter represents and agrees that, without the prior consent of the Company and the Representative, it has not made and will not make any offer relating to the Shares that would constitute a free writing prospectus; any such free writing prospectus the use of which has been consented to by the Company and the Representative is listed on Schedule II hereto;

(b) The Company has complied and will comply with the requirements of Rule 433 under the Securities Act applicable to any Issuer Free Writing Prospectus, including timely filing with the Commission or retention where required and legending; the Company represents that it has satisfied and agrees that it will satisfy the conditions under Rule 433 under the Securities Act to avoid a requirement to file with the Commission any electronic road show;

(c) The Company agrees that if at any time following issuance of an Issuer Free Writing Prospectus any event occurred or occurs as a result of which such Issuer Free Writing Prospectus would conflict with the information in the Registration Statement, the Pricing Prospectus or the Prospectus or would include an untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in light of the circumstances then prevailing, not misleading, the Company will give prompt notice thereof to the Representative and, if requested by the Representative, will prepare and furnish without charge to each Underwriter an Issuer Free Writing Prospectus or other document which will correct such conflict, statement or omission; provided, however, that this representation and warranty shall not apply to any statements or omissions in an Issuer Free Writing Prospectus made in reliance upon and in strict conformity with information furnished in writing to the Company by an Underwriter through the Representative expressly for use therein.

7. The Company covenants and agrees with the several Underwriters that, whether or not the transactions contemplated by this Agreement are consummated, the Company will pay or cause to be paid all expenses incident to the performance of its obligations under this Agreement, including (i) the fees, disbursements and expenses of the Company’s counsel, accountants and other advisors; (ii) filing fees and all other expenses in connection with the preparation, printing and filing of the Registration Statement, each Preliminary Prospectus, any Issuer Free Writing Prospectus and the Prospectus and amendments and supplements thereto and the mailing and delivering of copies thereof to the Underwriters and dealers; (iii) the cost (other than the fees of counsel to the Underwriters) of printing or producing this Agreement, closing

documents (including any compilations thereof) and such other documents as may be required in connection with the offering, purchase, sale and delivery of the Shares; (iv) all expenses in connection with the qualification of the Shares for offering and sale under state securities laws as provided in Section 5(c), including filing fees and the reasonable fees and disbursements of counsel for the Underwriters in connection with such qualification and in connection with the Blue Sky survey; (v) all fees and expenses in connection with listing the Common Stock (including the Shares) on the NASDAQ Global Market; (vi) the filing fees incident to, and the reasonable fees and disbursements of counsel for the Underwriters in connection with, securing any required review by the Financial Industry Regulatory Authority, Inc. (“FINRA”) of the terms of the sale of the Shares; (vii) all fees and expenses in connection with the preparation, issuance and delivery of the certificates representing the Shares to the Underwriters, including any stock or other transfer taxes and any stamp or other duties payable upon the sale, issuance or delivery of the Shares to the Underwriters; (viii) the cost and charges of any transfer agent or registrar; (ix) the transportation and other expenses incurred by the Company in connection with presentations to prospective purchasers of Shares; and (x) all other costs and expenses incident to the performance of its obligations hereunder which are not otherwise specifically provided for in this Section.

8. The several obligations of the Underwriters hereunder to purchase the Shares on the Closing Date or each Option Closing Date, as the case may be, are subject to the performance by the Company of its obligations hereunder and to the following additional conditions:

(a) If filing of the Prospectus, or any amendment or supplement thereto, or any Issuer Free Writing Prospectus, is required under the Securities Act or the Rules and Regulations, the Company shall have filed the Prospectus (or such amendment or supplement) or such Issuer Free Writing Prospectus with the Commission in the manner and within the time period so required (without reliance on Rule 424(b)(8) or Rule 164(b)); all material required to be filed by the Company pursuant to Rule 433(d) under the Securities Act shall have been filed with the Commission within the applicable time period prescribed for such filing by Rule 433 under the Securities Act; if the Company has elected to rely upon Rule 462(b) under the Securities Act, the Rule 462(b) Registration Statement shall have become effective by 10:00 P.M., Washington, D.C. time, on the date of this Agreement; no stop order suspending the effectiveness of the Registration Statement or any part thereof or the Prospectus or any part thereof or any Issuer Free Writing Prospectus shall have been issued and no proceeding for that purpose shall, to the best knowledge of the Company, have been initiated or threatened by the Commission or any state securities commission; and all requests for additional information on the part of the Commission shall have been complied with to your reasonable satisfaction.

(b) The representations and warranties of the Company contained herein are true and correct on and as of the Closing Date or the Option Closing Date, as the case may be, as if made on and as of the Closing Date or the Option Closing Date, as the case may be, and the Company shall have complied with all agreements and all conditions on its part to be performed or satisfied hereunder at or prior to the Closing Date or the Option Closing Date, as the case may be.

(d) (i) Neither the Company nor any of its subsidiaries shall have sustained since the date of the latest audited financial statements included in the Pricing Prospectus any material loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree, otherwise than as set forth or contemplated in the Pricing Prospectus, and (ii) since the respective dates as of which information is given in the Pricing Prospectus, (1) there shall not have been any change in the capital stock or long-term debt of the Company or any of its subsidiaries or (2) there shall not have been any material adverse change, or any development involving a prospective material adverse change, in or affecting the business, management, financial position, shareholders’ equity or results of operations of the Company and its subsidiaries, considered as one enterprise, the effect of which, in any such case described in clause (i) or (ii), is in the judgment of the Representative so material and adverse as to make it impracticable or inadvisable to proceed with the public offering or the delivery of the Shares being delivered at such Closing Date or Option Closing Date, as the case may be, on the terms and in the manner contemplated in the Pricing Prospectus.

(e) the Representative shall have received on and as of the Closing Date or the Option Closing Date, as the case may be, a certificate of an executive officer of the Company, at least one of whom has specific knowledge about the Company’s financial matters, satisfactory to the Representative, to the effect (1) set forth in Sections 8(b) (with respect to the respective representations, warranties, agreements and conditions of the Company) and 8(c), (2) that none of the situations set forth in clause (i) or (ii) of Section 8(d) shall have occurred and (3) that no stop order suspending the effectiveness of the Registration Statement has been issued and to the knowledge of the Company, no proceedings for that purpose have been instituted or are pending or contemplated by the Commission.

(f) On the Closing Date or Option Closing Date, as the case may be, Faegre Xxxxx Xxxxxxx LLP, counsel for the Company, shall have furnished to the Representative its written opinion, dated the Closing Date or the Option Closing Date, as the case may be, in form and substance satisfactory to counsel for the Underwriters, to the effect set forth in Exhibit A hereto.

(g) Concurrently with the execution of this Agreement: (i) Xxxxx Xxxxxxxx LLP shall have furnished to the Representative a letter, dated the date of this Agreement, in form and substance satisfactory to the Representative, containing statements and information of the type customarily included in accountants’ “comfort letters” to underwriters with respect to the financial statements and certain financial information contained in the Registration Statement and the Prospectus, and (ii) KPMG LLP shall have furnished to the Representative a letter, dated the date of this Agreement, in form and substance satisfactory to the Representative, containing statements and information of the type customarily included in accountants’ “comfort letters” to underwriters with respect to the financial statements and certain financial information contained in the Registration Statement and the Prospectus.

(h) On the Closing Date or Option Closing Date, as the case may be, the Representative shall have received from each of Xxxxx Xxxxxxxx LLP and KPMG LLP, a letter, dated the Closing Date or such Option Closing Date, as the case may be, to the effect that it reaffirms the statements made in the letter or letters furnished pursuant to Section 8(g), except that the specified date referred to shall be a date not more than three business days prior to the Closing Date or such Option Closing Date, as the case may be.

(i) On the Closing Date or Option Closing Date, as the case may be, Xxxxxxx Procter LLP, counsel for the Underwriters, shall have furnished to the Representative its favorable opinion dated the Closing Date or the Option Closing Date, as the case may be, with respect to the due authorization and valid issuance of the Shares, the Registration Statement, the Prospectus and other related matters as the Representative may reasonably request, and such counsel shall have received such papers and information as they may reasonably request to enable them to pass upon such matters.

(j) The Shares to be delivered on the Closing Date or Option Closing Date, as the case may be, shall have been approved for listing on the NASDAQ Global Market, subject to official notice of issuance.

(k) FINRA shall have raised no objection with respect to the fairness and reasonableness of the underwriting terms and conditions.

(l) The Representative shall have received “lock-up” agreements, each substantially in the form of Exhibit B hereto, from all the executive officers and directors of the Company and such agreements shall be in full force and effect on the Closing Date or Option Closing Date, as the case may be.

(m) On or prior to the Closing Date or Option Closing Date, as the case may be, the Company shall have furnished to the Representative such further information, certificates and documents as the Representative shall reasonably request.

(n) On or after the Applicable Time there shall not have occurred any of the following: (i) a suspension or material limitation in trading in securities generally on the NASDAQ Global Market; (ii) a suspension or material limitation in trading in the Company’s securities on the NASDAQ Global Market; (iii) a general moratorium on commercial banking activities declared by any of Federal or state authorities or a material disruption in commercial banking or securities settlement or clearance services in the United States; (iv) the outbreak or escalation of hostilities involving the United States or the declaration by the United States of a national emergency or war or (v) the occurrence of any other calamity or crisis or any material adverse change in financial, political or economic conditions in the United States or elsewhere such that it has a material impact on the financial markets in the United States, if the effect of any such event specified in clause (iv) or (v) in the judgment of the Representative makes it impracticable or inadvisable to proceed with the public offering or the delivery of the Shares being delivered at such Closing Date or Option Closing Date, as the case may be, on the terms and in the manner contemplated in the Prospectus.

If any condition specified in this Section 8 shall not have been fulfilled when and as required to be fulfilled, this Agreement may be terminated, subject to the provisions of Section 12, by the Representative by notice to the Company at any time at or prior to the Closing Date or Option Closing Date, as the case may be, and such termination shall be without liability of any party to any other party, except as provided in Section 12.

9. (a) The Company agrees to indemnify and hold harmless each Underwriter and each person, if any, who controls any Underwriter within the meaning of Section 15 of the Securities Act or Section 20(a) of the Exchange Act against any and all losses, liabilities, claims, damages and expenses whatsoever as incurred (including without limitation, reasonable attorneys’ fees and any and all reasonable expenses whatsoever incurred in investigating, preparing or defending against any litigation, commenced or threatened, or any claim whatsoever, and any and all amounts paid in settlement of any claim or litigation), joint or several, to which they or any of them may become subject under the Securities Act, the Exchange Act or otherwise, insofar as such losses, liabilities, claims, damages or expenses (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of a material fact contained in the Initial Registration Statement, as originally filed or any amendment thereof, the Registration Statement, or any amendment thereof, any Preliminary Prospectus, the Pricing Prospectus or the Prospectus, or in any supplement thereto or amendment thereof, any Issuer Free Writing Prospectus, or any “issuer information” filed or required to be filed pursuant to Rule 433(d) under the Securities Act, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, in light of the circumstances under which they are made; provided, however, that the Company will not be liable in any such case to the extent that any such loss, liability, claim, damage or expense arises out of or is based upon any such untrue statement or alleged untrue statement or omission or alleged omission made in the Initial Registration Statement, as originally filed or any amendment thereof, the Registration Statement, or any amendment thereof, any Preliminary Prospectus, the Pricing Prospectus or the Prospectus, or in any supplement thereto or amendment thereof, or any Issuer Free Writing Prospectus in reliance upon and in strict conformity with written information furnished to the Company by or on behalf of any Underwriter through the Representative expressly for use therein, it being understood and agreed that the only such information furnished by any Underwriter is the information described as such in Section 9(b) below; and provided, further, that the Company shall not be liable in any such case to any Underwriter with respect to any untrue statement or omission of a material fact if, (i) prior to the Closing Date the Company shall have notified the Representative in writing in accordance with Section 14 hereof that the Registration Statement, any Preliminary Prospectus, the Pricing Prospectus or the Prospectus, or any amendment or supplement thereto, or any Issuer Free Writing Prospectus contains an untrue statement or alleged untrue statement of material fact or omits or allegedly omits to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, (ii) such untrue statement, alleged untrue statement, omission or alleged omission of a material fact was corrected in an amendment or supplement and such amendment or supplement was provided to the Underwriters prior to the Applicable Time, and (iii) the information contained in such corrected disclosure was not conveyed at or prior to the Applicable Time.

(b) Each Underwriter severally, and not jointly, agrees to indemnify and hold harmless the Company, each of the directors of the Company, each of the officers of the Company who shall have signed the Registration Statement, and each other person, if any, who controls the Company within the meaning of Section 15 of the Securities Act or Section 20(a) of the Exchange Act, against any losses, liabilities, claims, damages and expenses whatsoever as incurred (including without limitation, reasonable attorneys’ fees and any and all reasonable expenses whatsoever incurred in investigating, preparing or defending against any litigation, commenced or threatened, or any claim whatsoever, and any and all amounts paid in settlement of any claim or litigation), joint or several, to which they or any of them may become subject under the Act, the Exchange Act or otherwise, insofar as such losses, liabilities, claims, damages or expenses (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of a material fact contained in the Initial Registration Statement, as originally filed or any amendment thereof, the Registration Statement, or any amendment thereof, or any Preliminary Prospectus, the Pricing Prospectus or the Prospectus, or in any supplement thereto or amendment thereof, or any Issuer Free Writing Prospectus or any “issuer information” filed or required to be filed pursuant to Rule 433(d) under the Securities Act, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, in light of the circumstances under which they are made, in each case to the extent, but only to the extent, that any such loss, liability, claim, damage or expense arises out of or is based upon any such untrue statement or alleged untrue statement or omission or alleged omission made therein in reliance upon and in conformity with written information furnished to the Company by or on behalf of such Underwriter through the Representative expressly for use therein, it being understood and agreed that the only such information furnished by any Underwriter consists of the following information in the Prospectus furnished on behalf of each Underwriter: the concession figures appearing under the caption “Underwriting—Commissions and Discounts” and the list of the number of Shares purchased by each Underwriter set forth under the caption “Underwriting”.

(c) Promptly after receipt by an indemnified party under Section 9(a), 9(b) or 9(c) of notice of the commencement of any action, such indemnified party shall, if a claim in respect thereof is to be made against the indemnifying party under such Section, notify each party against whom indemnification is to be sought in writing of the commencement thereof (but the failure to so notify an indemnifying party shall not relieve it from any liability which it may have under this Section 9). In case any such action is brought against any indemnified party, and it notifies an indemnifying party of the commencement thereof, the indemnifying party will be entitled to participate therein, and jointly with any other indemnifying party similarly notified, to the extent it may elect by written notice delivered to the indemnified party promptly after receiving the aforesaid notice from such indemnified party, to assume the defense thereof with counsel reasonably satisfactory to such indemnified party (who shall not, except with the consent of the indemnified party, be counsel to the indemnified party) and, after notice from the indemnifying party of its election to assume the defense thereof, the indemnifying party shall not be liable to the indemnified party for any legal expenses of other counsel or any other expenses subsequently incurred other than reasonable costs of investigation. Notwithstanding the foregoing, the indemnified party or parties shall have the right to employ its or their own counsel in any such case, but the fees and expenses of such counsel shall be at the expense of such indemnified party or parties unless (i) the employment of such counsel shall have been authorized in writing by the indemnifying parties in connection with the defense of such action,

(ii) the indemnifying parties shall not have employed counsel to have charge of the defense of such action within a reasonable time after notice of commencement of the action, or (iii) such indemnified party or parties shall have reasonably concluded that there may be defenses available to it or them which are different from or in addition to those available to one or all of the indemnifying parties (in which case the indemnifying parties shall not have the right to direct the defense of such action on behalf of the indemnified party or parties), in any of which events such reasonable fees and expenses shall be borne by the indemnifying parties. In no event shall the indemnifying parties be liable for fees and expenses of more than one counsel (in addition to any local counsel) separate from their own counsel for all indemnified parties in connection with any one action or separate but similar or related actions in the same jurisdiction arising out of the same general allegations or circumstances, which counsel, in the event of indemnified parties under Section 9(a), shall be selected by the Representative. No indemnifying party shall, without the written consent of the indemnified party, effect the settlement or compromise of, or consent to the entry of any judgment with respect to, any pending or threatened action or claim in respect of which indemnification or contribution may be sought hereunder (whether or not the indemnified party is an actual or potential party to such action or claim) unless such settlement, compromise or judgment (i) includes an unconditional release of the indemnified party from all liability arising out of such action or claim and (ii) does not include a statement as to or an admission of fault, culpability or a failure to act, by or on behalf of any indemnified party.

(d) If the indemnification provided for in this Section 9 is unavailable to or insufficient to hold harmless an indemnified party under Section 9(a), 9(b) or 9(c) in respect of any losses, liabilities, claims, damages or expenses (or actions in respect thereof) referred to therein, then each indemnifying party shall contribute to the amount paid or payable by such indemnified party as a result of such losses, liabilities, claims, damages or expenses (or actions in respect thereof) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and the Underwriters on the other from the offering of the Shares. If, however, the allocation provided by the immediately preceding sentence is not permitted by applicable law, then each indemnifying party shall contribute to such amount paid or payable by such indemnified party in such proportion as is appropriate to reflect not only such relative benefits but also the relative fault of the Company on the one hand and the Underwriters on the other in connection with the statements or omissions which resulted in such losses, liabilities, claims, damages or expenses (or actions in respect thereof), as well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and the Underwriters on the other from the offering of the Shares shall be deemed to be in the same proportion as the total net proceeds from the offering (before deducting expenses) received by the Company bear to the total underwriting discounts and commissions received by the Underwriters, in each case as set forth in the table on the cover page of the Prospectus. The relative fault shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company on the one hand or the Underwriters on the other and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

The Company and the Underwriters agree that it would not be just and equitable if contributions pursuant to this Section 9(d) were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to above in this Section 9(d). The amount paid or payable by an indemnified party as a result of the losses, liabilities, claims, damages or expenses (or actions in respect thereof) referred to above in this Section 9(d) shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this Section 9(d), no Underwriter shall be required to contribute any amount in excess of the amount by which the total price at which the Shares underwritten by it and distributed to the public were offered to the public exceeds the amount of any damages which such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission.

No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Underwriters’ obligations in this Section 9(d) to contribute are several in proportion to their respective underwriting obligations and not joint.

(e) The obligations of the parties to this Agreements contained in this Section 9 are not exclusive and shall not limit any rights or remedies which may otherwise be available to any indemnified party at law or in equity.

10. If any Underwriter or Underwriters default in its or their obligations to purchase Shares hereunder on the Closing Date or any Option Closing Date and the aggregate number of Shares that such defaulting Underwriter or Underwriters agreed but failed to purchase does not exceed 10% of the total number of Shares that the Underwriters are obligated to purchase on such Closing Date or Option Closing Date, as the case may be, the Representative may make arrangements satisfactory to the Company for the purchase of such Shares by other persons, including any of the Underwriters, but if no such arrangements are made by such Closing Date or Option Closing Date, as the case may be, the non-defaulting Underwriters shall be obligated severally, in proportion to their respective commitments hereunder, to purchase the Shares that such defaulting Underwriters agreed but failed to purchase on such Closing Date or Option Closing Date, as the case may be. If any Underwriter or Underwriters so default and the aggregate number of Shares with respect to which such default or defaults occur exceeds 10% of the total number of Shares that the Underwriters are obligated to purchase on such Closing Date or Option Closing Date, as the case may be, and arrangements satisfactory to the Representative and the Company for the purchase of such Shares by other persons are not made within 36 hours after such default, this Agreement will terminate, subject to the provisions of Section 12, without liability on the part of any non-defaulting Underwriter or the Company, except as provided in Section 12. Nothing herein will relieve a defaulting Underwriter from liability for its default.

In the event of any such default which does not result in a termination of this Agreement, either the Representative or the Company shall have the right to postpone the Closing Date or the relevant Option Closing Date, as the case may be, for a period not exceeding seven days in order to effect any required changes in the Registration Statement or Prospectus or in any other documents or arrangements. As used in this Agreement, the term “Underwriter” includes any person substituted for an Underwriter under this Section 10.

11. Notwithstanding anything herein contained, this Agreement (or the obligations of the several Underwriters with respect to any Option Shares which have yet to be purchased) may be terminated, subject to the provisions of Section 12, in the absolute discretion of the Representative, by notice given to the Company, if after the execution and delivery of this Agreement and prior to the Closing Date or the Option Closing Date, as the case may be, (a) trading generally on the American Stock Exchange or the New York Stock Exchange or on the NASDAQ Global Select Market or the NASDAQ Global Market shall have been suspended or materially limited, or minimum or maximum prices for trading have been fixed, or maximum ranges for prices have been required, by any of said exchanges or by such system or by order of the Commission, FINRA or any other governmental or regulatory authority, (b) trading of any securities of or guaranteed by the Company or any Subsidiary shall have been suspended on any exchange or in any over-the-counter market, (c) a general moratorium on commercial banking activities in New York or Maryland shall have been declared by Federal, New York State or Maryland State authorities or a new restriction materially adversely affecting the distribution of the Firm Shares or the Option Shares, as the case may be, shall have become effective, or (d) there has occurred any material adverse change in the financial markets in the United States or the international financial markets such that it has a material impact on the financial markets in the United States, any outbreak of hostilities or escalation thereof or other calamity or crisis or any change or development involving a prospective change in national or international political, financial or economic conditions, in each case the effect of which is such as to make it, in the judgment of the Representative, impracticable to market the Shares to be delivered on the Closing Date or Option Closing Date, as the case may be, or to enforce contracts for the sale of the Shares.

If this Agreement is terminated pursuant to this Section 11, such termination will be without liability of any party to any other party except as provided in Section 12 hereof.

12. The respective indemnities, agreements, representations, warranties and other statements of the Company or its officers and of the several Underwriters set forth in or made pursuant to this Agreement will remain in full force and effect, regardless of any investigation, or statement as to the results thereof, made by or on behalf of any Underwriter, the Company or any of their respective representatives, officers or directors or any controlling person, and will survive delivery of and payment for the Shares. If this Agreement is terminated pursuant to Section 8, 10 or 11 or if for any reason the purchase of any of the Shares by the Underwriters is not consummated, (i) the Company shall remain responsible for the expenses to be paid or reimbursed by it pursuant to Section 7, (ii) the respective obligations of the Company and the Underwriters pursuant to Section 9 and the provisions of Sections 12, 13 and 16 shall remain in effect, (iii) if any Shares have been purchased hereunder, the representations and warranties in Section 1 and all obligations under Section 5 and Section 6 shall remain in effect and (iv) other than as set forth in the following sentence and in clauses (i)-(iii) of this sentence, the Company shall be subject to no further liability hereunder. If this Agreement shall be terminated by the Underwriters, or any of them, under Section 8 or otherwise because of any failure or refusal on the part of the Company to comply with the terms or to fulfill any of the conditions of this Agreement, or if for any reason the Company shall be unable to perform its obligations under this Agreement or any condition of the Underwriters’ obligations cannot be fulfilled, (i) the

Company agrees to reimburse the Underwriters or such Underwriters as have so terminated this Agreement with respect to themselves, severally, for all out-of-pocket expenses (including the fees and expenses of its counsel) reasonably incurred by the Underwriter in connection with this Agreement or the offering contemplated hereunder and (ii) other than as set forth in this Section 12, the Company shall be subject to no further liability hereunder.

13. This Agreement shall inure to the benefit of and be binding upon the Company and the Underwriters, the officers and directors of the Company referred to herein, any controlling persons referred to herein and their respective successors and assigns. Nothing expressed or mentioned in this Agreement is intended or shall be construed to give any other person, firm or corporation any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision herein contained. No purchaser of Shares from any Underwriter shall be deemed to be a successor or assign by reason merely of such purchase.

14. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given upon receipt thereof by the recipient if mailed or transmitted by any standard form of telecommunication. Notices to the Underwriters shall be given to the Representative, x/x Xxxxxx, Xxxxxxxx & Company, Incorporated, Xxx Xxxxxxxxxx Xxxxxx, Xxxxx 0000, Xxx Xxxxxxxxx, Xxxxxxxxxx 00000 (fax no.: 000-000-0000); Attention: General Counsel. Notices to the Company shall be given to it at 000 Xxxxx Xxxxxxx Xxxxxx, Xxxxx 0000, Xxxxxxxxxxx, XX 00000 (fax no.: 000-000-0000); Attention: Chief Executive Officer.

15. This Agreement may be signed by electronic or facsimile signature and in counterparts, each of which shall be an original and all of which together shall constitute one and the same instrument.

16. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO SUCH STATE’S PRINCIPLES OF CONFLICTS OF LAWS.

17. In all dealings hereunder, you shall act on behalf of each of the Underwriters, and the parties hereto shall be entitled to act and rely upon any statement, request, notice or agreement on behalf of any Underwriter made or given by the Underwriters jointly or by the Representative on behalf of the Underwriters; and in all dealings with the Company hereunder, you shall be entitled to act and rely upon any statement, request, notice or agreement made or given by the Company.

18. The Company acknowledges and agrees that (i) the purchase and sale of the Shares pursuant to this Agreement, including the determination of the public offering price of the Shares and any related discounts and commissions, is an arm’s-length commercial transaction between the Company on the one hand, and the several Underwriters, on the other, (ii) in connection therewith and with the process leading to such transaction each Underwriter is acting solely as a principal and not the agent or fiduciary of the Company or its respective stockholders, creditors, employees or any other party, (iii) no Underwriter has assumed an advisory or fiduciary responsibility in favor of the Company with respect to the offering contemplated hereby or the process leading thereto (irrespective of whether such Underwriter has advised or is

currently advising the Company on other matters) or any other obligation to the Company except the obligations expressly set forth in this Agreement, and (iv) the Company has consulted its own legal and financial advisors to the extent it deemed appropriate. The Company agrees that it will not claim that the Underwriters, or any of them, has rendered advisory services of any nature or respect, or owes a fiduciary or similar duty to the Company, in connection with such transaction or the process leading thereto.

19. The Company acknowledges that the Underwriters’ research analysts and research departments are required to be independent from their respective investment banking divisions and are subject to certain regulations and internal policies, and that such Underwriters’ research analysts may hold views and make statements or investment recommendations and/or publish research reports with respect to the Company and/or the offering that differ from the views of their respective investment banking divisions. The Company hereby waives and releases, to the fullest extent permitted by law, any claims that the Company may have against the Underwriters with respect to any conflict of interest that may arise from the fact that the views expressed by their independent research analysts and research departments may be different from or inconsistent with the views or advice communicated to the Company by such Underwriters’ investment banking divisions. The Company acknowledges that each of the Underwriters is a full service securities firm and as such from time to time, subject to applicable securities laws, may effect transaction for its own account or the account of its customers and hold long or short positions in debt or equity securities of the companies that may be the subject of the transactions contemplated by this Agreement.

20. Notwithstanding anything herein to the contrary, the Company is authorized to disclose to any persons the U.S. federal and state income tax treatment and tax structure of the potential transaction and all materials of any kind (including tax opinions and other tax analyses) provided to the Company relating to that treatment and structure, without the Underwriters imposing any limitation of any kind. However, any information relating to the tax treatment and tax structure shall remain confidential ( and the foregoing sentence shall not apply) to the extent necessary to enable any person to comply with securities laws. For this purpose, “tax structure” is limited to any facts that may be relevant to that treatment.

21. This Agreement supersedes all prior agreements and understandings (whether written or oral) between the Company and the Underwriters, or any of them, with respect to the subject matter hereof.

22. The Company and each of the Underwriters hereby irrevocably waives, to the fullest extent permitted by applicable law, any and all right to trial by jury in any legal proceeding arising out of or relating to this Agreement or the transactions contemplated hereby.

If the foregoing is in accordance with your understanding of our agreement, please sign and return to the Company a counterpart hereof, whereupon this instrument will become a binding agreement among the Company and the Underwriters. It is understood that your acceptance of this letter on behalf of each of the Underwriters is pursuant to the authority set forth in a form of Agreement among Underwriters, the form of which shall be submitted to the Company for examination, upon request, but without warranty on your part as to the authority of the signers thereof.


Very truly yours,

SPS COMMERCE, INC.

By:		/s/ Xxx Xxxxxx
		Name: Xxx Xxxxxx
		Title: CFO


Accepted as of the date hereof:

XXXXXX, XXXXXXXX & COMPANY, INCORPORATED

By: Xxxxxx, Xxxxxxxx & Company, Incorporated

By:		/s/ Xxxxx Xxxxxx
		Title: Managing Director

For itself and as Representative of the other Underwriters named in Schedule I hereto

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750,000 Shares SPS COMMERCE, INC. Common Stock UNDERWRITING AGREEMENT November 19, 2013

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