3,000,000 Shares Niku Corporation Common Stock ($0.0001 Par Value) UNDERWRITING AGREEMENT

Exhibit 1.1

3,000,000 Shares

Niku Corporation

Common Stock

($0.0001 Par Value)

UNDERWRITING AGREEMENT

December 16, 2004

Deutsche Bank Securities Inc.

Xxxxxxx & Company, Inc.

XX Xxxxx & Co., LLC

America’s Growth Capital, LLC

As Representatives of the

Several Underwriters

c/o Deutsche Bank Securities Inc.

00 Xxxx Xxxxxx, 0^xx Xxxxx

Xxx Xxxx, Xxx Xxxx 00000

Ladies and Gentlemen:

Niku Corporation, a Delaware corporation (the “Company”), and certain stockholders of the Company (the “Selling Stockholders”) propose to sell to the several underwriters (the “Underwriters”) named in Schedule I hereto for whom you are acting as representatives (the “Representatives”) an aggregate of 3,000,000 shares of the Company’s Common Stock, $0.0001 par value (the “Firm Shares”), of which 1,608,778 shares will be sold by the Company and 1,391,222 shares will be sold by the Selling Stockholders. The respective amounts of the Firm Shares to be so purchased by the several Underwriters are set forth opposite their names in Schedule I hereto, and the respective amounts to be sold by the Selling Stockholders are set forth opposite their names in Schedule II hereto. The Company and the Selling Stockholders are sometimes referred to herein collectively as the “Sellers.” The Company also proposes to sell at the Underwriters’ option an aggregate of up to 450,000 additional shares of the Company’s Common Stock (the “Option Shares”) as set forth below.

As the Representatives, you have advised the Company and the Selling Stockholders (a) that you are authorized to enter into this Agreement on behalf of the several Underwriters, and (b) that the several Underwriters are willing, acting severally and not jointly, to purchase the numbers of Firm Shares set forth opposite their respective names in Schedule I, plus their pro rata portion of the Option Shares if you elect to exercise the over-allotment option in whole or in part for the accounts of the several Underwriters. The Firm Shares and the Option Shares (to the extent the aforementioned option is exercised) are herein collectively called the “Shares.”

In consideration of the mutual agreements contained herein and of the interests of the parties in the transactions contemplated hereby, the parties hereto agree as follows:

1. REPRESENTATIONS AND WARRANTIES OF THE COMPANY AND THE SELLING STOCKHOLDERS.

(a) The Company represents and warrants to each of the Underwriters as follows:

(i) A registration statement on Form S-3 (File No. 333-120653) with respect to the Shares, including a form of prospectus (the “Base Prospectus”), has been prepared and filed, and subsequently amended on a pre-effective basis, by the Company in conformity with the requirements of the Securities Act of 1933, as amended (the “Act”), and the rules and regulations (the “Rules and Regulations”) of the Securities and Exchange Commission (the “Commission”) thereunder and has been filed with the Commission. The Company and the transactions contemplated by this Agreement meet the requirements and comply with the conditions for the use of Form S-3. There are no contracts or documents required to be filed as exhibits or incorporated by reference in the Registration Statement that are not so filed or incorporated by reference. The Company has prepared a prospectus supplement (the “Prospectus Supplement”) to the Base Prospectus included as part of such registration statement setting forth the terms of the offering, sale and plan of distribution of the Shares and additional information concerning the Company and its business. Copies of such registration statement, including any amendments thereto, the Base Prospectus, as supplemented by the preliminary Prospectus Supplement (meeting the requirements of the Rules and Regulations), and including the documents incorporated in such Base Prospectus by reference (the “Preliminary Prospectus”), and the exhibits, financial statements and schedules, as finally amended and revised, have heretofore been delivered by the Company to you or are publicly available. Such registration statement, together with any registration statement filed by the Company pursuant to Rule 462(b) of the Act, is herein referred to as the “Registration Statement,” shall be deemed to include all information omitted therefrom in reliance upon Rule 430A and contained in the Prospectus referred to below, has become effective under the Act and no post-effective amendment to the Registration Statement has been filed as of the date of this Agreement. “Prospectus” means the form of prospectus first filed with the Commission pursuant to Rule 424(b), containing the Base Prospectus and the Prospectus Supplement. Any reference herein to the Registration Statement, any Preliminary Prospectus or to the Prospectus or to any amendment or supplement to any of the foregoing documents shall be deemed to refer to and include any documents incorporated by reference therein, and, in the case of any reference herein to any Prospectus, also shall be deemed to include any documents incorporated by reference therein, and any supplements or amendments thereto, filed with the Commission after the date of filing of the Prospectus under Rules 424(b) or 430A, and prior to the termination of the offering of the Shares by the Underwriters.

(ii) The Company has been duly organized and is validly existing as a corporation in good standing under the laws of the State of Delaware, with corporate power and authority to own or lease its properties and conduct its business as described in the Registration Statement. Each of the subsidiaries of the Company as listed in Exhibit A hereto (collectively, the “Subsidiaries”) has been duly organized and is validly existing as a corporation in good standing

under the laws of the jurisdiction of its incorporation, with corporate power and authority to own or lease its properties and conduct its business as described in the Registration Statement. The Company has no domestic Subsidiaries and plans to dissolve Niku Europe B.V. and Applied Business Technology A.G. The Subsidiaries are the only subsidiaries, direct or indirect, of the Company. The Company and each of the Subsidiaries are duly qualified to transact business in all jurisdictions in which the conduct of their business requires such qualification except to the extent that the failure to be so qualified or in good standing would not have a material adverse effect on the business, management, properties, assets, rights, operations, prospects, results of operation or condition (financial or otherwise) of the Company or its Subsidiaries taken as a whole (“Material Adverse Effect”). The outstanding shares of capital stock of each of the Subsidiaries have been duly authorized and validly issued, are fully paid and non-assessable and are owned by the Company or another Subsidiary free and clear of all liens, encumbrances and equities and claims except to the extent such liens, encumbrances and equities and claims would not have a Material Adverse Effect; and no options, warrants or other rights to purchase, agreements or other obligations to issue or other rights to convert any obligations into shares of capital stock or ownership interests in the Subsidiaries are outstanding.

(iii) The authorized shares of the Company’s Common Stock have been duly authorized. The outstanding shares of Common Stock of the Company, including all shares to be sold by the Selling Stockholders, have been duly authorized and validly issued and are fully paid and non-assessable; the portion of the Shares to be issued and sold by the Company have been duly authorized and when issued and paid for as contemplated herein will be validly issued, fully paid and non-assessable; and no preemptive rights of stockholders exist with respect to any of the Shares or the issue and sale thereof. Except as disclosed in the Prospectus, neither the filing of the Registration Statement nor the offering or sale of the Shares as contemplated by this Agreement gives rise to any rights, other than those which have been waived or satisfied, for or relating to the registration of any shares of Common Stock. There are no outstanding securities of the Company convertible or exchangeable into or evidencing the right to purchase or subscribe for any shares of capital stock of the Company and there are no outstanding or authorized options, warrants or rights of any character obligating the Company to issue any shares of its capital stock or any securities convertible or exchangeable into or evidencing the right to purchase or subscribe for any shares of such stock.

(iv) All of the Shares conform to the description thereof contained in the Registration Statement. The form of certificates for the Shares conforms to the corporate law of the jurisdiction of the Company’s incorporation.

(v) The Commission has not issued an order preventing or suspending the use of any Prospectus relating to the proposed offering of the Shares nor instituted proceedings for that purpose. The Registration Statement complies, and the Prospectus and any amendments or supplements thereto will comply, in all material respects, with the requirements of the Act and the Rules and Regulations. The documents incorporated, or to be incorporated, by reference in the Prospectus, at the time filed with the Commission comply or will comply, in all material respects, to the requirements of the Securities Exchange Act of 1934 (“Exchange Act”) or the Act, as applicable, and the rules and regulations of the Commission thereunder. The Registration Statement and any amendment thereto do not contain, and will not contain, any untrue statement of a material fact and do not omit, and will not omit, to state any material fact required to be stated therein or necessary to make the statements therein not misleading. The Prospectus and any amendments and supplements

thereto do not contain, and will not contain, any untrue statement of material fact; and do not omit, and will not omit, to state any 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 the Company makes no representations or warranties as to information contained in or omitted from the Registration Statement or the Prospectus, or any such amendment or supplement, in reliance upon and conformity with written information furnished to the Company by or on behalf of any Underwriter through the Representatives, specifically for use in the preparation thereof.

(vi) The consolidated financial statements of the Company and the Subsidiaries, together with related notes and schedules as set forth or incorporated by reference in the Registration Statement, present fairly in all material respects the financial position and the results of operations and cash flows of the Company and the consolidated Subsidiaries, at the indicated dates and for the indicated periods. Such financial statements and related schedules have been prepared in accordance with generally accepted principles of accounting, consistently applied throughout the periods involved, except as disclosed therein, and all adjustments necessary for a fair presentation of results for such periods have been made. The summary financial and statistical data included or incorporated by reference in the Registration Statement presents fairly in all material respects the information shown therein and such data has been compiled on a basis consistent with the financial statements presented therein and the books and records of the company.

(vii) To the Company’s knowledge, KPMG LLP, which has certified the financial statements filed with the Commission that are incorporated by reference in the Registration Statement, is (A) an independent public accounting firm within the meaning of the Act and (B) not in violation of the auditor independence requirements of the Xxxxxxxx-Xxxxx Act of 2002 (the “Xxxxxxxx-Xxxxx Act”), with respect to its services provided to the Company.

(viii) There are no material off-balance sheet transactions or any other relationships with unconsolidated entities, that may have a material current, or to the Company’s knowledge, future effect on the Company’s financial condition, changes in financial condition, results of operations, liquidity, capital expenditures, capital resources, or significant components of revenues or expenses.

(ix) There is no action, suit, claim or proceeding pending or, to the Company’s knowledge, threatened against the Company or any of the Subsidiaries before any court or administrative agency or otherwise which if determined adversely to the Company or any of its Subsidiaries is reasonably expected to result in a Material Adverse Effect or prevent the consummation of the transactions contemplated hereby, except as set forth in the Registration Statement.

(x) The Company and the Subsidiaries have good and marketable title to all of the properties and assets material to the business of the Company and its Subsidiaries, subject to no lien, mortgage, pledge, charge or encumbrance of any kind except those reflected in the Company’s consolidated financial statements or described in the Registration Statement or which do not materially affect the value of such property. The Company and the Subsidiaries occupy their leased properties under valid and binding leases, conforming in all material respects to the description thereof set forth in the Registration Statement.

(xi) The Company and the Subsidiaries have filed all federal, state, local and foreign tax returns that have been required to be filed and have paid all taxes indicated by such returns, except to the extent any failure to file or pay such taxes would not have a Material Adverse Effect, and all assessments received by them or any of them to the extent that such taxes have become due. All tax liabilities have been provided for in the financial statements of the Company in accordance with generally accepted accounting principles, and the Company does not know of any actual or proposed additional material tax assessments.

(xii) Since the respective dates as of which information is given in the Registration Statement, as it may be amended or supplemented, there has not been any change involving a Material Adverse Effect (a “Material Adverse Change”) or any development involving a prospective Material Adverse Change, whether or not occurring in the ordinary course of business, and there has not been any material transaction entered into or any material transaction authorized by the Company or the Subsidiaries, other than transactions in the ordinary course of business and changes and transactions described in the Registration Statement, as it may be amended or supplemented.

(xiii) Neither the Company nor any of the Subsidiaries is or, with the giving of notice or lapse of time or both, will be in violation of or in default under (i) its Charter or By-Laws or (ii) under any agreement, lease, contract, indenture or other instrument or obligation to which it is a party or by which it, or any of its properties, is bound and solely with respect to this clause (ii), which violation or default would have a Material Adverse Effect. The execution and delivery of this Agreement and the consummation of the transactions herein contemplated and the fulfillment of the terms hereof will not conflict with or result in a breach of any of the terms or provisions of, or constitute a default under, any indenture, mortgage, deed of trust or other agreement or instrument to which the Company or any Subsidiary is a party or by which the Company or any Subsidiary or any of their respective properties is bound, or of the Charter or By-Laws of the Company or any law, order, rule or regulation judgment, order, writ or decree applicable to the Company or any Subsidiary of any court or of any government, regulatory body or administrative agency or other governmental body having jurisdiction except, other than in the case of the Charter or By-Laws of the Company, where such breach or default would not have a Material Adverse Effect.

(xiv) The execution and delivery of, and the performance by the Company of its obligations under, this Agreement has been duly and validly authorized by all necessary corporate action on the part of the Company, and this Agreement has been duly executed and delivered by the Company.

(xv) Each approval, consent, order, authorization, designation, declaration or filing by or with any regulatory, administrative or other governmental body necessary in connection with the execution and delivery by the Company of this Agreement and the consummation of the transactions herein contemplated (except such additional steps as may be required by the Commission, the National Association of Securities Dealers, Inc. (the “NASD”) or such additional steps as may be necessary to qualify the Shares for public offering by the Underwriters under state securities or Blue Sky laws) has been obtained or made and is in full force and effect.

(xvi) The Company and each of the Subsidiaries hold all licenses, certificates and permits from governmental authorities which are necessary to the conduct of their businesses, except in each case where the failure so to hold would not result in a Material Adverse Effect;

(xvii) Except as disclosed in the Prospectus, the Company and the Subsidiaries each own or possess, or can acquire on reasonable terms without a Material Adverse Effect, the right to use all patents, patent rights, trademarks, trade names, service marks, service names, copyrights, license rights, know-how (including trade secrets and other unpatented and unpatentable proprietary or confidential information, systems or procedures) and other intellectual property rights (“Intellectual Property”) necessary to carry on their business in all material respects; and except as disclosed in the Prospectus, neither the Company nor any of the Subsidiaries has infringed, and none of the Company or the Subsidiaries have received notice of conflict with, any Intellectual Property of any other person or entity that, if the subject of an unfavorable decision, ruling or finding, would have a Material Adverse Effect. The Company has taken all reasonably prudent steps to secure interests in such Intellectual Property from its consultants or contractors. There are no outstanding options, licenses or agreements of any kind relating to the Intellectual Property of the Company that are required to be described in the Prospectus and are not described in all material respects. The Company is not a party to or bound by any options, licenses or agreements with respect to the Intellectual Property of any other person or entity that are required to be set forth in the Prospectus and are not described in all material respects. To the Company’s knowledge, none of the technology employed by the Company has been obtained or is being used by the Company in violation of any material contractual obligation binding on the Company or any of its officers, directors or employees or otherwise in violation of the rights of any persons; the Company has not received any written or oral communications alleging that the company has violated, infringed or conflicted with, or, by conducting its business as set forth in the Prospectus, would violate, infringe or conflict with, any of the Intellectual Property of any other person or entity. The Company knows of no infringement by others of Intellectual Property owned by or licensed to the Company.

(xviii) Neither the Company, nor to the Company’s knowledge, any of its affiliates, has taken or is authorized to take, directly or indirectly, any action designed to cause or result in, or which has constituted or which might reasonably be expected to constitute, the stabilization or manipulation of the price of the shares of Common Stock to facilitate the sale or resale of the Shares that are in violation of the Exchange Act.

(xix) Neither the Company nor any Subsidiary is or, after giving effect to the offering and sale of the Shares contemplated hereunder and the application of the net proceeds from such sale as described in the Properties, will be an “investment company” within the meaning of such term under the Investment Company Act of 1940, (as amended, the “1940 Act”) and the rules and regulations of the Commission thereunder.

(xx) The Company and each of its Subsidiaries maintains a system of internal accounting controls sufficient to provide reasonable assurances that (i) transactions are executed in accordance with management’s general or specific authorization; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain accountability for assets; (iii) access to assets is permitted only in accordance with management’s general or specific authorization; and (iv) the recorded accountability for assets is compared with existing assets at reasonable intervals and appropriate action is taken with respect to any differences.

(xxi) The Company is not aware of any reason that certifications of the Form 10-K and Forms 10-Q incorporated by reference into the Registration Statement and is aware of no reason that its Annual Report on Form 10-K for the year ended January 31, 2005 would not be accompanied by the certifications required to be filed or submitted by the Company’s chief executive officer and chief financial officer pursuant to the Xxxxxxxx-Xxxxx Act of 2002 and the rules and regulations promulgated thereunder.

(xxii) The Company’s board of directors has appointed an audit committee whose composition satisfies the requirements of Rule 4350(d) of the Rules of the National Association of Securities Dealers, Inc. (the “NASD Rules”). The Company’s board of directors and/or the audit committee has adopted a charter that satisfies the requirements of Rule 4350(d)(1) of the NASD Rules.

(xxiii) The Company is in compliance in all material respects with (i) all provisions of the Xxxxxxxx-Xxxxx Act that are effective and as to which the Company is required to be in compliance, and (ii) all rules and regulations promulgated thereunder, or implementing the provisions thereof, that are effective and as to which the Company is required to be in compliance.

(xxiv) The Company and each of its Subsidiaries carry, or are covered by, insurance in such amounts and covering such risks as is prudent and customary for the conduct of their respective businesses and the value of their respective properties.

(xxv) The Company and each Subsidiary is in compliance in all material respects with all presently applicable provisions of the Employee Retirement Income Security Act of 1974, as amended, including the regulations and published interpretations thereunder (“ERISA”).

(xxvi) To the Company’s knowledge, there are no affiliations or associations between any member of the NASD and any of the Company’s officers, directors or 5% or greater securityholders, except as set forth in the Registration Statement.

(b) Each of the Selling Stockholders severally represents and warrants as follows:

(i) Such Selling Stockholder now has and at the Closing Date (as such date is hereinafter defined) will have good and marketable title to the Firm Shares to be sold by such Selling Stockholder, free and clear of any liens, encumbrances, equities and claims, and full right, power and authority to effect the sale and delivery of such Firm Shares (other than restrictions imposed by the Act and the securities or blue sky laws of certain jurisdictions); and upon the delivery of, against payment for, such Firm Shares pursuant to this Agreement, the Underwriters will acquire good and marketable title thereto, free and clear of any liens, encumbrances, equities and claims.

(ii) Such Selling Stockholder has full right, power and authority to execute and deliver this Agreement, the Power of Attorney, and the Custody Agreement referred to below and to perform its obligations under such Agreements. The execution and delivery of this Agreement and the consummation by such Selling Stockholder of the transactions herein

contemplated and the fulfillment by such Selling Stockholder of the terms hereof will not require any consent, approval, authorization, or other order of any court, regulatory body, administrative agency or other governmental body (except as may be required under the Act, state securities laws or Blue Sky laws) and will not result in a breach of any of the terms and provisions of, or constitute a default under, organizational documents of such Selling Stockholder, if not an individual, or any indenture, mortgage, deed of trust or other agreement or instrument to which such Selling Stockholder is a party, or of any order, rule or regulation applicable to such Selling Stockholder of any court or of any regulatory body or administrative agency or other governmental body having jurisdiction.

(iii) Such Selling Stockholder has not taken and will not take, directly or indirectly, any action designed to, or which has constituted, or which might reasonably be expected to cause or result in the stabilization or manipulation of the price of the Common Stock of the Company and, other than as permitted by the Act, the Selling Stockholder will not distribute any prospectus or other offering material in connection with the offering of the Shares.

(iv) Without having undertaken to determine independently the accuracy or completeness of either the representations and warranties of the Company contained herein or the information contained in the Registration Statement, such Selling Stockholder has no reason to believe that the representations and warranties of the Company contained in this Section 1 are not true and correct, is familiar with the Registration Statement and has no knowledge that the Registration Statement contained any untrue statement of a material fact or omitted to state any material fact required to be stated therein or necessary in order to make the statements therein not misleading, or that the Prospectus, as of the date of the Prospectus, contains any untrue statement of a material fact or omits to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading; and the sale of the Firm Shares by such Selling Stockholder pursuant hereto is not prompted by any information concerning the Company or any of the Subsidiaries which is not set forth in the Registration Statement or the documents incorporated by reference therein. The information pertaining to such Selling Stockholder under the caption “Selling Stockholder” in the Prospectus is complete and accurate in all material respects.

2. PURCHASE, SALE AND DELIVERY OF THE FIRM SHARES.

(a) On the basis of the representations, warranties and covenants herein contained, and subject to the conditions herein set forth, the Sellers agree to sell to the Underwriters and each Underwriter agrees, severally and not jointly, to purchase, at a price of $17.672 per share, the number of Firm Shares set forth opposite the name of each Underwriter in Schedule I hereof, subject to adjustments in accordance with Section 9 hereof. The number of Firm Shares to be purchased by each Underwriter from each Seller shall be as nearly as practicable in the same proportion to the total number of Firm Shares being sold by each Seller as the number of Firm Shares being purchased by each Underwriter bears to the total number of Firm Shares to be sold hereunder. The obligations of the Company and the Selling Stockholder shall be several and not joint.

(b) Certificates in negotiable form for the total number of the Shares to be sold hereunder by the Selling Stockholder have been placed in custody with Computershare Trust Co., Inc., as custodian (the “Custodian”), pursuant to the Letter of Transmittal and Stock Custody Agreement (the “Custody Agreement”) executed by the Selling Stockholder for delivery of all Firm

Shares to be sold hereunder by the Selling Stockholders. Each of the Selling Stockholders specifically agrees that the Firm Shares represented by the certificates held in custody for the Selling Stockholders under the Custodian Agreement are subject to the interests of the Underwriters hereunder, that the arrangements made by the Selling Stockholders for such custody are to that extent irrevocable, and that the obligations of the Selling Stockholders hereunder shall not be terminable by any act or deed of the Selling Stockholders (or by any other person, firm or corporation including the Company, the Custodian or the Underwriters) or by operation of law (including the dissolution of a corporate Selling Stockholder) or by the occurrence of any other event or events, except as set forth in the Custodian Agreement. If any such event should occur prior to the delivery to the Underwriters of the Firm Shares hereunder, certificates for the Firm Shares shall be delivered by the Custodian in accordance with the terms and conditions of this Agreement as if such event has not occurred. The Custodian is authorized to receive and acknowledge receipt of the proceeds of sale of the Shares held by it against delivery of such Shares.

(c) Payment for the Firm Shares to be sold hereunder is to be made in Federal (same day) funds to an account designated by the Company for the shares to be sold by it and to an account designated by the Custodian for the shares to be sold by the Selling Stockholders, in each case against delivery of certificates therefor to the Representatives for the several accounts of the Underwriters. Such payment and delivery are to be made through the facilities of The Depository Trust Company at 10:00 a.m., New York time, on the third business day after the date of this Agreement or at such other time and date not later than ten business days thereafter as you and the Company shall agree upon, such time and date being herein referred to as the “Closing Date.” (As used herein, “business day” means a day on which the New York Stock Exchange is open for trading and on which banks in New York are open for business and not permitted by law or executive order to be closed.) The certificates for the Firm Shares will be delivered in such denominations and in such registrations as the Representatives requests in writing not later than the second full business day prior to the Closing Date, and will be made available for inspection by the Representatives at least one business day prior to the Closing Date.

(d) In addition, on the basis of the representations and warranties herein contained and subject to the terms and conditions herein set forth, the Company hereby grants an option to the several Underwriters to purchase the Option Shares at the price per share as set forth in the first paragraph of this Section 2. The option granted hereby may be exercised in whole or in part by giving written notice (i) at any time before the Closing Date and (ii) only once thereafter within 30 days after the date of this Agreement, by you, as Representatives of the several Underwriters, to the Company, setting forth the number of Option Shares as to which the several Underwriters are exercising the option and the time and date at which such certificates are to be delivered. The time and date at which certificates for Option Shares are to be delivered shall be determined by the Representatives but shall not be earlier than three nor later than 10 full business days after the exercise of such option, nor in any event prior to the Closing Date (such time and date being herein referred to as the “Option Closing Date”). If the date of exercise of the option is three or more days before the Closing Date, the notice of exercise shall set the Closing Date as the Option Closing Date. The number of Option Shares to be purchased by each Underwriter shall be in the same proportion to the total number of Option Shares being purchased as the number of Firm Shares being purchased by such Underwriter bears to the total number of Firm Shares, adjusted by you in such manner as to avoid fractional shares. The option with respect to the Option Shares granted hereunder may be exercised only to cover over-allotments in the sale of the Firm Shares by the Underwriters. You, as

Representatives of the several Underwriters, may cancel such option at any time prior to its expiration by giving written notice of such cancellation to the Company. To the extent, if any, that the option is exercised, payment for the Option Shares shall be made on the Option Closing Date in Federal (same day) funds drawn to the order of the Company against delivery of certificates therefor through the facilities of The Depository Trust Company, New York, New York.

(e) If on the Closing Date, the Selling Stockholders fail to sell the Firm Shares which such Selling Stockholders have agreed to sell on such date as set forth in Schedule II hereto, the Company agrees that it will sell or arrange for the sale of that number of shares of Common Stock to the Underwriters which represents Firm Shares which the Selling Stockholders have failed to so sell, as set forth in Schedule II hereto, or such lesser number as may be requested by the Representatives.

3. OFFERING BY THE UNDERWRITERS.

It is understood that the several Underwriters are to make a public offering of the Firm Shares as soon as the Representatives deem it advisable to do so. The Firm Shares are to be initially offered to the public at the initial public offering price set forth in the Prospectus. The Representatives may from time to time thereafter change the public offering price and other selling terms.

It is further understood that you will act as the Representatives for the Underwriters in the offering and sale of the Shares in accordance with a Master Agreement Among Underwriters entered into by you and the several other Underwriters.

4. COVENANTS OF THE COMPANY AND THE SELLING STOCKHOLDERS.

(a) The Company covenants and agrees with the several Underwriters that:

(i) The Company will (A) use its reasonable efforts to cause the Registration Statement to become effective or, if the procedure in Rule 430A of the Rules and Regulations is followed, to prepare and timely file with the Commission under Rule 424(b) of the Rules and Regulations a Prospectus in a form approved by the Representatives containing information previously omitted at the time of effectiveness of the Registration Statement in reliance on Rule 430A of the Rules and Regulations, (B) not file any amendment to the Registration Statement or supplement to the Prospectus or document incorporated by reference therein of which the Representatives shall not previously have been advised and furnished with a copy or to which the Representatives shall have reasonably objected in writing or which is not in compliance with the Rules and Regulations and (C) file on a timely basis all reports and any definitive proxy or information statements required to be filed by the Company with the Commission subsequent to the date of the Prospectus and prior to the termination of the offering of the Shares by the Underwriters.

(ii) The Company will advise the Representatives promptly (A) when the Registration Statement or any post-effective amendment thereto shall have become effective, (B) of receipt of any comments from the Commission, (C) of any request of the Commission for amendment of the Registration Statement or for supplement to the Prospectus or for any additional information, and (D) of the issuance by the Commission of any stop order suspending the

effectiveness of the Registration Statement or the use of the Prospectus or of the institution of any proceedings for that purpose. The Company will use its reasonable efforts to prevent the issuance of any such stop order preventing or suspending the use of the Prospectus and to obtain as soon as possible the lifting thereof, if issued.

(iii) The Company will cooperate with the Representatives in endeavoring to qualify the Shares for sale under the securities laws of such jurisdictions as the Representatives may reasonably have designated in writing and will make such applications, file such documents, and furnish such information as may be reasonably required for that purpose, provided the Company shall not be required to qualify as a foreign corporation or to file a general consent to service of process in any jurisdiction where it is not now so qualified or required to file such a consent. The Company will, from time to time, prepare and file such statements, reports, and other documents, as are or may be required to continue such qualifications in effect for so long a period as the Representatives may reasonably request for distribution of the Shares.

(iv) The Company will deliver to, or upon the order of, the Representatives, from time to time, as many copies of any Preliminary Prospectus as the Representatives may reasonably request. The Company will deliver to, or upon the order of, the Representatives during the period when delivery of a Prospectus is required under the Act, as many copies of the Prospectus in final form, or as thereafter amended or supplemented, as the Representatives may reasonably request. The Company will deliver to the Representatives at or before the Closing Date, four signed copies of the Registration Statement and all amendments thereto including all exhibits filed therewith, and will deliver to the Representatives such number of copies of the Registration Statement (including such number of copies of the exhibits filed therewith that may reasonably be requested), including documents incorporated by reference therein, and of all amendments thereto, as the Representatives may reasonably request.

(v) The Company will comply with the Act and the Rules and Regulations, and the Exchange Act, and the rules and regulations of the Commission thereunder, so as to permit the completion of the distribution of the Shares as contemplated in this Agreement and the Prospectus. If during the period in which a prospectus is required by law to be delivered by an Underwriter or dealer, any event shall occur as a result of which, in the judgment of the Company or in the reasonable opinion of the Underwriters, it becomes necessary to amend or supplement the Prospectus in order to make the statements therein, in the light of the circumstances existing at the time the Prospectus is delivered to a purchaser, not misleading, or, if it is necessary at any time to amend or supplement the Prospectus to comply with any law, the Company promptly will either (i) prepare and file with the Commission an appropriate amendment to the Registration Statement or supplement to the Prospectus or (ii) prepare and file with the Commission an appropriate filing under the Exchange Act which shall be incorporated by reference in the Prospectus so that the Prospectus as so amended or supplemented will not, in the light of the circumstances when it is so delivered, be misleading, or so that the Prospectus will comply with the law.

(vi) The Company will make generally available to its security holders, as soon as it is practicable to do so, but in any event not later than 15 months after the effective date of the Registration Statement, an earning statement (which need not be audited) in reasonable detail, covering a period of at least 12 consecutive months beginning after the effective date of the Registration Statement, which earnings statement shall satisfy the requirements of Section 11(a) of the Act and Rule 158 of the Rules and Regulations and will advise you in writing when such statement has been so made available.

(vii) Prior to the Closing Date, the Company will furnish to the Underwriters, as soon as they have been prepared by or are available to the Company, a copy of any unaudited interim financial statements of the Company for any period subsequent to the period covered by the most recent financial statements appearing in the Registration Statement and the Prospectus.

(viii) No offering, sale, short sale or other disposition of any shares of Common Stock of the Company or other securities convertible into or exchangeable or exercisable for shares of Common Stock or derivative of Common Stock (or agreement for such) will be made for a period of at least 90 days after the date of this Agreement (such period is subject to extension as provided below), directly or indirectly, by the Company otherwise than hereunder or with the prior written consent of Deutsche Bank Securities Inc. (“DBSI”). If (1) during the last 17 days of the 90-day period commencing the day after the date of this Agreement (the “Initial Lock-Up Period”), (x) the Company releases earnings results or (y) material news or a material event relating to the Company occurs, or (2) prior to the expiration of the Initial Lock-Up Period, the Company announces that it will release earnings results during the 16-day period following the last day of the Initial Lock-Up Period, then with respect to clause (1), the Initial Lock-Up Period will be extended until the expiration of the 18-day period beginning on the date of the release of the earnings results or the occurrence of material news or a material event relating to the Company, as the case may be, or with respect to clause (2), the Lock-Up Period will be extended until the earlier of (i) the expiration of the 18-day period beginning on the date of the announcement that the Company will release earnings results or (ii) the expiration of the 2-day period beginning on the date of the release of the earnings results, unless, in each case, the Representatives waive, in writing, such extension. The foregoing shall not apply to (i) the Firm Shares; (ii) the exercise of an option or warrant; (iii) an employee benefit plan that has been adopted by the Company prior to the date hereof, provided that the terms of each such employee benefit plan have been disclosed in the Prospectus; or (iv) the issuance by the Company of Common Stock or securities convertible or exchangeable into common stock in connection with any (A) mergers or acquisitions of securities, businesses, property or other assets, (B) joint ventures or other strategic corporate transactions, or (C) any other transaction, the primary purpose of which is not to raise capital, but only if the Company engages in good faith consultation with Deutsche Bank Securities Inc. with regard to transactions of any of the foregoing types and the total number of shares to be issued in the transaction (on an as converted basis if the security issued is not Common Stock) is less than 10% of the total number of shares of the Company’s Common Stock then outstanding.

(ix) The Company will use its reasonable best efforts to list, subject to notice of issuance, the Shares on the Nasdaq National Market.

(x) The Company shall use its reasonable best efforts to cause each director, Xxxxxxx Xxxxxxxxxx, Xxxxxxx and Xxxxxxx Xxxxxxx and each entity affiliated with Xxxxxx XX II, L.P. to furnish to you, on or prior to the date of this agreement, a letter or letters, substantially in the form of Exhibit B hereto, pursuant to which each such person shall agree not to offer, sell, sell short or otherwise dispose of any shares of Common Stock of the Company or other capital stock of

the Company, or any other securities convertible, exchangeable or exercisable for Common Shares or derivative of Common Shares owned by such person or request the registration for the offer or sale of any of the foregoing (or as to which such person has the right to direct the disposition of) for a period of at least 90 days after the date of this Agreement (such period is subject to extension as provided in Exhibit B), directly or indirectly, except with the prior written consent of DBSI (“Lockup Agreements”).

(xi) The Company shall apply the net proceeds of its sale of the Shares as set forth in the Prospectus.

(xii) The Company shall not invest, or otherwise use the proceeds received by the Company from its sale of the Shares in such a manner as would require the Company or any of the Subsidiaries to register as an investment company under the 1940 Act.

(xiii) The Company will maintain a transfer agent and, if necessary under the jurisdiction of incorporation of the Company, a registrar for the Common Stock.

(xiv) The Company will not take, directly or indirectly, any action designed to cause or result in, or that has constituted or might reasonably be expected to constitute, the stabilization or manipulation of the price of any securities of the Company.

(xv) The Company shall at all times comply in all material respects with (i) all provisions of the Xxxxxxxx-Xxxxx Act that are effective and as to which the Company is required to be in compliance, and (ii) all rules and regulations promulgated thereunder or implementing the provisions thereof that are effective and as to which the Company is required to be in compliance.

(xvi) By January 31, 2005, the Company will obtain confirmation in writing, from the relevant governmental authorities, that the Subsidiaries identified in Exhibit A with an asterisk are in good standing in the country where they are incorporated.

(b) Each of the Selling Stockholders covenants and agrees with the several Underwriters that:

(i) No offering, sale, short sale or other disposition of any shares of Common Stock of the Company or other capital stock of the Company or other securities convertible, exchangeable or exercisable for Common Stock or derivative of Common Stock owned by the Selling Stockholder or request for the registration for the offer or sale of any of the foregoing (or as to which the Selling Stockholder has the right to direct the disposition of) will be made for a period of at least 90 days after the date of this Agreement (such period is subject to extension as described in Section 4(a)(viii) above), directly or indirectly, by such Selling Stockholder otherwise than hereunder or with the prior written consent of DBSI.

(ii) In order to document the Underwriters’ compliance with the reporting and withholding provisions of the Tax Equity and Fiscal Responsibility Act of 1982 and the Interest and Dividend Tax Compliance Act of 1983 with respect to the transactions herein contemplated, each of the Selling Stockholders agrees to deliver to you prior to or at the Closing Date a properly completed and executed United States Treasury Department Form W-8 or W-9 (or other applicable form or statement specified by Treasury Department regulations in lieu thereof).

(iii) Such Selling Stockholder will not take, directly or indirectly, any action designed to cause or result in, or that has constituted or might reasonably be expected to constitute, the stabilization or manipulation of the price of any securities of the Company.

5. COSTS AND EXPENSES.

The Company will pay all costs, expenses and fees incident to the performance of the obligations of the Sellers under this Agreement, including, without limiting the generality of the foregoing, the following: accounting fees of the Company; the fees and disbursements of counsel for the Company and the Selling Stockholders; the cost of printing and delivering to, or as requested by, the Underwriters copies of the Registration Statement, Preliminary Prospectuses, the Prospectus, this Agreement, the Nasdaq National Market Notification Form: Listing of Additional Shares, any Blue Sky Survey and any supplements or amendments thereto; the filing fees of the Commission; the filing fees and expenses (including reasonable legal fees and disbursements) incident to securing any required review by the NASD of the terms of the sale of the Shares; the Listing Fee of the Nasdaq National Market; and the expenses, including the fees and disbursements of counsel for the Underwriters, incurred in connection with the qualification of the Shares under State securities or Blue Sky laws. The Company shall not, however, be required to pay for any of the Underwriters expenses (other than those related to qualification under NASD regulation and State securities or Blue Sky laws) except that, if this Agreement shall not be consummated because the conditions in Section 6 hereof are not satisfied, or because this Agreement is terminated by the Representatives pursuant to Section 11 hereof, or by reason of any failure, refusal or inability on the part of the Company or the Selling Stockholders to perform any undertaking or satisfy any condition of this Agreement or to comply with any of the terms hereof on their part to be performed, unless such failure, refusal or inability is due primarily to the default or omission of any Underwriter, the Company shall reimburse the several Underwriters for reasonable out-of-pocket expenses, including reasonable fees and disbursements of counsel, reasonably incurred in connection with investigating, marketing and proposing to market the Shares or in contemplation of performing their obligations hereunder; but the Company and the Selling Stockholders shall not in any event be liable to any of the several Underwriters for damages on account of loss of anticipated profits from the sale by them of the Shares.

6. CONDITIONS OF OBLIGATIONS OF THE UNDERWRITERS.

The several obligations of the Underwriters to purchase the Firm Shares on the Closing Date and the Option Shares, if any, on the Option Closing Date are subject to the accuracy in all material respects, as of the Closing Date or the Option Closing Date, as the case may be, of the representations and warranties of the Company and the Selling Stockholders contained herein, and to the performance in all material respects by the Company and the Selling Stockholders of their covenants and obligations hereunder and to the following additional conditions:

(a) The Registration Statement and all post-effective amendments thereto shall have become effective and any and all filings required by Rule 424 and Rule 430A of the Act shall have been made within the applicable time period prescribed by, and in compliance with, the Rules

and Regulations, and any request of the Commission for additional information in connection with the Registration Statement (whether to be included in it or not) shall have been disclosed to the Representatives and reasonably complied with. No stop order suspending the effectiveness of the Registration Statement, as amended from time to time, shall have been issued and no proceedings for that purpose shall have been taken or, to the knowledge of the Company or the Selling Stockholders, shall be contemplated or threatened by the Commission and no injunction, restraining order or order of any nature by a Federal or state court of competent jurisdiction shall have been issued as of the Closing Date which would prevent the issuance of the Shares.

(b) The Representatives shall have received on the Closing Date or the Option Closing Date, as the case may be, the opinions of Skadden, Arps, Slate, Xxxxxxx & Xxxx LLP, special counsel for the Company, dated the Closing Date or the Option Closing Date, as the case may be, addressed to the Underwriters (and stating that it may be relied upon by counsel to the Underwriters) to the effect that:

(i) The Company is validly existing in good standing under the laws of the State of Delaware, with corporate power and authority to own or lease its properties and conduct its business as described in the Registration Statement. The Company is duly qualified to transact business in California, Georgia, Illinois, Michigan, New York and Pennsylvania. The Company has the power and authority to execute and deliver the Underwriting Agreement and to consummate the transactions contemplated thereby.

(ii) The shares to be sold by the Company have been duly authorized by the Company and, when delivered to and paid for by the Underwriters in accordance with the terms of the Underwriting Agreement, will be validly issued, fully paid and nonassessable and free and clear of any preemptive rights or any similar rights arising under Delaware law, the Company’s Certificate of Incorporation or Bylaws or, to such counsel’s knowledge, any contract filed as an exhibit to or incorporated by reference in the Registration Statement (“Applicable Contract”). The shares being sold by the Selling Stockholders have been duly authorized and are validly issued, fully paid and nonassessable. The form of certificate used to evidence the shares of Common Stock complies in all material respects with the applicable requirements of the Company’s Certificate of Incorporation and Bylaws.

(iii) The authorized capital stock of the Company conforms as to legal matters to the description thereof contained in the Prospectus and Prospectus Supplement. The shares of Common Stock issued to the Selling Stockholders pursuant to the Common Stock and Warrant Purchase Agreement by and between the Company and certain investors dated February 12, 2003 when issued were issued free and clear of any preemptive rights or any similar rights arising under the Company’s Certificate of Incorporation or Bylaws, the Delaware General Corporation Law or, to such counsel’s knowledge, under any Applicable Contract.

(iv) The Registration Statement, the Prospectus and Prospectus Supplement, as of their respective effective dates, complied as to form in all material respects with the requirements of the Act and the Rules and Regulations, except that, in each case, we express no opinion as to the financial statements, schedules and other financial and statistical data derived therefrom and included or incorporated by reference therein or excluded therefrom or the exhibits thereto, and we do not assume any responsibility for the accuracy, completeness or fairness of the statements contained in the Registration Statement, Prospectus or Prospectus Supplement.

(v) The statements in the Prospectus and Prospectus Supplement under the caption “Description of Capital Stock”, and under Item 3 of the Annual Report on Form 10-K filed for the year ended January 31, 2004, insofar as such statements purport to summarize certain provisions of the documents or matters referred to therein, fairly summarize such provisions in all material respects.

(vi) Such counsel knows of no legal or governmental proceedings pending to which the Company is a party or to which any property of the Company is subject that are required to be disclosed in the Prospectus and Prospectus Supplement pursuant to Item 103 of Regulation S-K of the Rules and Regulations that are not so disclosed.

(vii) The execution and delivery by the Company of the Underwriting Agreement and the consummation by the Company of the transactions contemplated thereby, including the issuance and sale of the Securities, will not (A) conflict with the Certificate of Incorporation or By-laws, (B) constitute a violation of, or a breach or default under, the terms of any Applicable Contract or (C) violate or conflict with, or result in any contravention of, any applicable law or any applicable order, except in (B) to the extent that such conflicts, violations, breaches or defaults would not have a Material Adverse Effect. Such counsel shall not express any opinion, however, as to whether the execution, delivery or performance by the Company of the Underwriting Agreement will constitute a violation of, or a default under, any covenant, restriction or provision with respect to financial ratios or tests or any aspect of the financial condition or results of operations of the Company or any of its subsidiaries.

(viii) The Underwriting Agreement has been duly authorized, executed and delivered by the Company.

(ix) No approval, consent, order, authorization, designation, declaration or filing by or with any regulatory, administrative or other governmental body, which has not been obtained or taken and is not in full force and effect, is required to authorize, or is required for, the execution or delivery of the Underwriting Agreement by the Company or the consummation by the Company of the transactions contemplated thereby, other than as may be required by the NASD or as required by state securities and Blue Sky laws as to which such counsel expresses no opinion.

(x) The Company is not and, solely after giving effect to the offering and sale of the Securities and the application of the proceeds thereof as described in the Prospectus Supplement, will not be subject to registration and regulation as an “investment company” as such term is defined in the Investment Company Act of 1940.

In rendering such opinion, Skadden, Arps, Slate, Xxxxxxx & Xxxx LLP may rely as to matters governed by the laws of the states other than Delaware or California or federal laws on local counsel in such jurisdictions, provided that in each case Skadden, Arps, Slate, Xxxxxxx & Xxxx LLP shall state that they believe that they and the Underwriters are justified in relying on such other counsel. In addition to the opinions set forth above, the Representatives shall have received on the Closing Date or the Option Closing Date, as the case may be, a statement from Skadden, Arps, Xxxxxxx & Xxxx LLP, dated the Closing Date or the Option Closing Date, as the case may be, addressed to the Underwriters to the effect that (A) the Registration Statement, at the time it became effective and the base Prospectus, as supplemented by the Prospectus Supplement, as of the date of the Prospectus Supplement, appeared on their face to be appropriately responsive in all material respects to the requirements of the Securities Act and the Rules and Regulations (except that in each case such counsel

need express no view as to the financial statements, schedules and other financial and statistical data derived therefrom and included or incorporated by reference therein or excluded therefrom or the exhibits thereto), and (B) no facts have come to the attention of such counsel that have caused such counsel to believe that the Registration Statement, at the time it became effective, contained an untrue statement of a material fact or omitted to state any material fact required to be stated therein or necessary to make the statements therein not misleading or that the Base Prospectus and the Prospectus Supplement, as of the date of the Prospectus Supplement, and as of the date hereof, contained or contains an untrue statement of a material fact or omitted or omits to state a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading (except that in each case such counsel need express no view as to the financial statements, schedules and other financial and statistical data derived therefrom and included or incorporated by reference therein or excluded therefrom or the exhibits thereto), and (C) no facts have come to the attention of such counsel that have caused such counsel to believe that documents required to be filed as exhibits to or incorporated by reference in the Registration Statement or described in the Registration Statement or the Prospectus have not been so filed, incorporated by reference or described, and no facts have come to the attention of such counsel that have caused such counsel to believe that documents that are summarized in the Registration Statement have not been fairly summarized in all material respects.

(c) The Representatives shall have received, on each of the date hereof and the Closing Date, the opinions of Xxxxxx Xxxx Nemerovski Xxxxxx Xxxx & Xxxxxx, A Professional Corporation, counsel for the Selling Stockholders, dated the Closing Date, addressed to the Underwriters (and stating that it may be relied upon by counsel to the Underwriters) to the effect that:

(i) Each of the Underwriting Agreement, the Custody Agreement and the Power of Attorney has been duly authorized by all necessary limited partnership action on the part of the partners of, and has been duly executed and delivered by, each of the Selling Stockholders.

(ii) Each Selling Stockholder has all requisite limited partnership power and authority to execute and deliver the Underwriting Agreement, Custody Agreement and Power of Attorney and to perform its obligations thereunder.

(iii) No consent, approval or authorization of, or designation, declaration or filing with any United States Federal or State of California governmental authority is required by the Selling Stockholders under any Applicable Law in connection with the execution and delivery by each Selling Stockholder of the Underwriting Agreement, Custody Agreement and Power of Attorney or the performance by each Selling Stockholder of its obligations thereunder, except for filings and other actions that are not material or that are required pursuant to (i) the Securities Act of 1933 and/or the Securities Exchange Act of 1934 and the rules and regulations thereunder, (ii) federal and state securities or blue sky laws, as to which such counsel expresses no opinion in this paragraph, and (iii) requirements of the National Association of Securities Dealers, Inc.

(iv) The execution, delivery and performance by each Selling Stockholder of its obligations under each of the Underwriting Agreement, the Custody Agreement and the Power of Attorney on the date hereof in accordance with their respective terms do not constitute a material default by such Selling Stockholder under its respective Selling Stockholder contracts.

(v) Each of the Custody Agreement and the Power of Attorney constitutes a valid and binding obligation of the Selling Stockholder which is a party thereto.

(vi) Assuming that the Underwriters acquire the Shares being sold to them by Selling Stockholders pursuant to the Underwriting Agreement without notice of an adverse claim thereto, upon (A) the delivery to the Underwriters of such Shares, (B) the payment therefore in accordance with the terms of the Underwriting Agreement and (C) the acquisition by the Underwriters of control of such Shares, the Underwriters will acquire all rights of the Selling Stockholder to such Shares and will acquire such Shares free of any adverse claim. For purposes of this paragraph (vi), the terms “delivery,” “control,” “adverse claim” and “notice of an adverse claim” have the meanings thereto in Sections 8301, 8106, 8102(a)(1) and 8105, respectively, of the California Commercial Code.

(d) The Representatives shall have received on the Closing Date or the Option Closing Date, as the case may be, the opinions of counsel for Niku Corporation Ltd. (“Niku U.K.”), dated the Closing Date or the Option Closing Date, as the case may be, addressed to the Underwriters (and stating that it may be relied upon by counsel to the Underwriters) substantially to the effect that:

(i) Niku U.K. has been duly organized and is validly existing as a corporation in good standing under the laws of the jurisdiction of its incorporation, with corporate power and authority to own or lease its properties and conduct its business as described in the Registration Statement; Niku U.K. is duly qualified to transact business in the jurisdictions (if any) set forth on a schedule attached to such opinion of counsel; and the outstanding shares of capital stock of Niku U.K. have been duly authorized and validly issued and are fully paid and non-assessable and are owned by the Company or a subsidiary of the Company; and, to such counsel’s knowledge, the outstanding shares of capital stock of Niku U.K. are owned free and clear of all liens, encumbrances and equities and claims, and no options, warrants or other rights to purchase, agreements or other obligations to issue or other rights to convert any obligations into any shares of capital stock or of ownership interests in Niku U.K. are outstanding.

(ii) Such counsel knows of no material legal or governmental proceedings pending or threatened against Niku U.K.

(iii) The execution and delivery of this Agreement and the consummation of the transactions herein contemplated do not and will not conflict with or result in a breach of any of the terms or provisions of, or constitute a default under, the Charter or By-Laws of Niku U.K. or any material indenture, mortgage, deed of trust or other agreement or instrument to which Niku U.K. is a party or by which Niku U.K. may be bound.

(e) The Representatives shall have received from Fenwick &West LLP, counsel for the Underwriters, an opinion dated the Closing Date or the Option Closing Date, as the case may be, substantially to the effect specified in subparagraphs (ii) and (viii) of Paragraph (b), and that the Company is a validly existing corporation under the laws of the State of Delaware. In rendering such opinion Fenwick & West LLP may rely as to all matters governed other than by the laws of the State of California or Federal laws on the opinion of counsel referred to in Paragraph (b) of this Section 6. In addition to the matters set forth above, such opinion shall also include a statement to the effect that nothing (A) such counsel has been orally advised that the Registration Statement has become

effective under the Act and, to the knowledge of such counsel, no stop order proceedings with respect thereto have been instituted or are pending or threatened under the Act and (B) has come to the attention of such counsel which leads them to believe that (i) the Registration Statement, or any amendment thereto, as of the time it became effective under the Act (including the information deemed to be a part of the Registration Statement at the time it became effective pursuant to Rule 430A under the Act) as of the Closing Date or the Option Closing Date, as the case may be, contained or contains an untrue statement of a material fact or omitted or omits to state a material fact required to be stated therein or necessary to make the statements therein not misleading, and (ii) the Prospectus, or any supplement thereto, on the date it was filed pursuant to the Rules and Regulations and as of the Closing Date or the Option Closing Date, as the case may be, contained or contains an untrue statement of a material fact or omitted or omits 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 (except that such counsel need express no view as to financial statements, schedules and statistical information therein). With respect to such statement, Fenwick & West LLP may state that their belief is based upon the procedures set forth therein, but is without independent check and verification.

(f) You shall have received, on each of the date hereof, the Closing Date and, if applicable, the Option Closing Date, a letter dated the date hereof, the Closing Date or the Option Closing Date, as the case may be, in form and substance satisfactory to you, of KPMG LLP confirming that they are independent public accountants within the meaning of the Act and the applicable published Rules and Regulations thereunder and stating that in their opinion the financial statements and schedules examined by them and included in the Registration Statement comply in form in all material respects with the applicable accounting requirements of the Act and the related published Rules and Regulations; and containing such other statements and information as is ordinarily included in accountants’ “comfort letters” to Underwriters with respect to the financial statements and certain financial and statistical information contained in the Registration Statement and Prospectus.

(g) The Representatives shall have received on the Closing Date and, if applicable, the Option Closing Date, as the case may be, a certificate or certificates of the Chief Executive Officer and the Chief Financial Officer of the Company to the effect that, as of the Closing Date or the Option Closing Date, as the case may be, each of them severally represents as follows:

(i) The Registration Statement has become effective under the Act and no stop order suspending the effectiveness of the Registration Statement has been issued, and no proceedings for such purpose have been taken or are, to his knowledge, contemplated or threatened by the Commission;

(ii) The representations and warranties of the Company contained in Section 1 hereof are true and correct in all material respects as of the Closing Date or the Option Closing Date, as the case may be;

(iii) All filings required to have been made pursuant to Rules 424 or 430A under the Act have been made as and when required by such rules;

(iv) He has carefully examined the Registration Statement and the Prospectus and, in his opinion, as of the effective date of the Registration Statement, the statements contained in the Registration Statement were true and correct, and such Registration Statement and Prospectus did not omit to state a material fact required to be stated therein or necessary in order to make the statements therein not misleading, and since the effective date of the Registration Statement, no event has occurred which should have been set forth in a supplement to or an amendment of the Prospectus which has not been so set forth in such supplement or amendment; and

(v) Since the respective dates as of which information is given in the Registration Statement and Prospectus, there has not been any Material Adverse Change, whether or not arising in the ordinary course of business.

(h) The Company and the Selling Stockholders shall have furnished to the Representatives such further certificates and documents confirming the representations and warranties, covenants and conditions contained herein and related matters as the Representatives may reasonably have requested.

(i) The Firm Shares and Option Shares, if any, have been approved for designation upon notice of issuance on the Nasdaq National Market.

(j) The Lockup Agreements described in Section 4 (x) are in full force and effect.

The opinions and certificates mentioned in this Agreement shall be deemed to be in compliance with the provisions hereof only if they are in all material respects reasonably satisfactory to the Representatives.

If any of the conditions hereinabove provided for in this Section 6 shall not have been fulfilled when and as required by this Agreement to be fulfilled, the obligations of the Underwriters hereunder may be terminated by the Representatives by notifying the Company and the Selling Stockholders of such termination in writing or by telegram at or prior to the Closing Date or the Option Closing Date, as the case may be.

In such event, the Selling Stockholders, the Company and the Underwriters shall not be under any obligation to each other (except to the extent provided in Sections 5 and 8 hereof).

7. CONDITIONS OF THE OBLIGATIONS OF THE SELLERS.

The obligations of the Sellers to sell and deliver the portion of the Shares required to be delivered as and when specified in this Agreement are subject to the conditions that at the Closing Date or the Option Closing Date, as the case may be, no stop order suspending the effectiveness of the Registration Statement shall have been issued and in effect or proceedings therefor initiated or threatened.

8. INDEMNIFICATION.

(a) The Company agrees:

(1) to indemnify and hold harmless each Underwriter and each person, if any, who controls any Underwriter within the meaning of either Section 15 of the Act or Section 20 of the Exchange Act, against any losses, claims, damages or liabilities to which such Underwriter or any such controlling person may become subject under the Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions or proceedings in respect thereof) arise out of or are based upon (i) any untrue statement or alleged untrue statement of any material fact contained in the Registration Statement, any Preliminary Prospectus, the Prospectus or any amendment or supplement thereto or (ii) 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 the light of the circumstances under which they were made; provided, however, that the Company will not be liable in any such case to the extent that any such loss, claim, damage or liability arises out of or is based upon an untrue statement or alleged untrue statement, or omission or alleged omission made in the Registration Statement, any Preliminary Prospectus, the Prospectus, or such amendment or supplement, in reliance upon and in conformity with written information furnished to the Company by or through the Representatives specifically for use in the preparation thereof; and provided further that the indemnity agreement contained in this Section 8(a) with respect to any Preliminary Prospectus shall not inure to the benefit of any Underwriter from whom the person asserting any such losses, claims, damages, liabilities or expenses purchased the shares which is the subject thereof if at or prior to the written confirmation of the sale of such shares a copy of the Prospectus (or the Prospectus as amended or supplemented) was not sent or delivered to such person and the untrue statement or omission of a material fact contained in such Preliminary Prospectus was corrected in the Prospectus (or the Prospectus as amended and supplemented), unless such failure to send or deliver was the result of noncompliance by the Company with Section 4(a)(iv) hereof.

(2) to reimburse each Underwriter and each such controlling person upon demand for any legal or other out-of-pocket expenses reasonably incurred by such Underwriter or such controlling person in connection with investigating or defending any such loss, claim, damage or liability, action or proceeding or in responding to a subpoena or governmental inquiry related to the offering of the Shares, whether or not such Underwriter or controlling person is a party to any action or proceeding. In the event that it is finally judicially determined that the Underwriters were not entitled to receive payments for legal and other expenses pursuant to this subparagraph, the Underwriters will promptly return all sums that had been advanced pursuant hereto.

(b) The Selling Stockholders agree to indemnify the Underwriters and each person, if any, who controls any Underwriter within the meaning of Section 15 of the Act or Section 20 of the Exchange Act, against any losses, claims, damages or liabilities to which such Underwriter or controlling person may become subject under the Act or otherwise to the same extent as indemnity is provided by the Company pursuant to Section 8(a) above but only with reference to information relating to such Selling Stockholders furnished in writing by or on behalf of such Selling Stockholders expressly for use in the Registration Statement, any Preliminary Prospectus, the

Prospectus or any amendments or supplements thereto. In no event, however, shall the liability of any Selling Stockholder for indemnification under this Section 8(a) exceed the proceeds received by such Selling Stockholder from the Underwriters in the offering. This indemnity obligation will be in addition to any liability which the Company may otherwise have.

(c) Each Underwriter severally and not jointly will indemnify and hold harmless the Company, each of its directors, each of its officers who have signed the Registration Statement, the Selling Stockholders, and each person, if any, who controls the Company or the Selling Stockholders within the meaning of the Act, against any losses, claims, damages or liabilities to which the Company or any such director, officer, Selling Stockholder or controlling person may become subject under the Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions or proceedings in respect thereof) arise out of or are based upon (i) any untrue statement or alleged untrue statement of any material fact contained in the Registration Statement, any Preliminary Prospectus, the Prospectus or any amendment or supplement thereto, or (ii) the omission or the alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading in the light of the circumstances under which they were made; and will reimburse any legal or other expenses reasonably incurred by the Company or any such director, officer, Selling Stockholder or controlling person in connection with investigating or defending any such loss, claim, damage, liability, action or proceeding; provided, however, that each Underwriter will be liable in each case to the extent, but only to the extent, that such untrue statement or alleged untrue statement or omission or alleged omission has been made in the Registration Statement, any Preliminary Prospectus, the Prospectus or such amendment or supplement, in reliance upon and in conformity with written information furnished to the Company by or through the Underwriters specifically for use in the preparation thereof. This indemnity agreement will be in addition to any liability which such Underwriter may otherwise have.

(d) In case any proceeding (including any governmental investigation) shall be instituted involving any person in respect of which indemnity may be sought pursuant to this Section 8, such person (the “indemnified party”) shall promptly notify the person against whom such indemnity may be sought (the “indemnifying party”) in writing. No indemnification provided for in Section 8(a), (b) or (c) shall be available to any party who shall fail to give notice as provided in this Section 8(d) if the party to whom notice was not given was unaware of the proceeding to which such notice would have related and was materially prejudiced by the failure to give such notice, but the failure to give such notice shall not relieve the indemnifying party or parties from any liability which it or they may have to the indemnified party for contribution or otherwise than on account of the provisions of Section 8(a), (b) or (c). In case any such proceeding shall be brought against any indemnified party and it shall notify the indemnifying party of the commencement thereof, the indemnifying party shall be entitled to participate therein and, to the extent that it shall wish, jointly with any other indemnifying party similarly notified, to assume the defense thereof, with counsel reasonably satisfactory to such indemnified party and shall pay as incurred the fees and disbursements of such counsel related to such proceeding. In any such proceeding, any indemnified party shall have the right to retain its own counsel at its own expense. Notwithstanding the foregoing, the indemnifying party shall pay as incurred (or within 30 days of presentation) the fees and expenses of the counsel retained by the indemnified party in the event (i) the indemnifying party and the indemnified party shall have mutually agreed to the retention of such counsel, (ii) the named parties to any such proceeding (including any impleaded parties) include both the indemnifying party and the indemnified party and representation of both parties by the same counsel would be

inappropriate due to actual or potential differing interests between them or (iii) the indemnifying party shall have failed to assume the defense and employ counsel acceptable to the indemnified party within a reasonable period of time after notice of commencement of the action. It is understood that the indemnifying party shall not, in connection with any proceeding or related proceedings in the same jurisdiction, be liable for the reasonable fees and expenses of more than one separate firm for all such indemnified parties. Such firm shall be designated in writing by you in the case of parties indemnified pursuant to Section 8(a) or (b) and by the Company and the Selling Stockholders in the case of parties indemnified pursuant to Section 8(c). The indemnifying party shall not be liable for any settlement of any proceeding effected without its written consent but if settled with such consent or if there be a final judgment for the plaintiff, the indemnifying party agrees to indemnify the indemnified party from and against any loss or liability by reason of such settlement or judgment. In addition, the indemnifying party will not, without the prior written consent of the indemnified party which consent shall not be unreasonably withheld, settle or compromise or consent to the entry of any judgment in any pending or threatened claim, action or proceeding of which indemnification may be sought hereunder (whether or not any indemnified party is an actual or potential party to such claim, action or proceeding) unless such settlement, compromise or consent (i) includes an unconditional release of each indemnified party from all liability arising out of such claim, action or proceeding 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, an indemnified party.

(e) To the extent the indemnification provided for in this Section 8 is unavailable to or insufficient to hold harmless an indemnified party under Section 8(a), (b) or (c) above in respect of any losses, claims, damages or liabilities (or actions or proceedings 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, claims, damages or liabilities (or actions or proceedings in respect thereof) in such proportion as is appropriate to reflect the relative benefits received by the Company and the Selling Stockholders 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 and the Selling Stockholders on the one hand and the Underwriters on the other in connection with the statements or omissions which resulted in such losses, claims, damages or liabilities (or actions or proceedings in respect thereof), as well as any other relevant equitable considerations. The relative benefits received by the Company and the Selling Stockholders on the one hand and the Underwriters on the other shall be deemed to be in the same proportion as the total net proceeds from the offering (before deducting expenses) received by the Company and the Selling Stockholders 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 or the respective Selling Stockholders or the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

The Company, the Selling Stockholders and the Underwriters agree that it would not be just and equitable if contributions pursuant to this Section 8(e) 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 8(e). The amount paid or payable by an indemnified party as a result of the losses, claims, damages or liabilities (or actions or proceedings in respect thereof) referred to above in this Section 8(e) shall be deemed to include any reasonable 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 subsection (e), (i) no Underwriter shall be required to contribute any amount in excess of the underwriting discounts and commissions applicable to the Shares purchased by such Underwriter, (ii) no person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation, and (iii) no Selling Stockholder shall be required to contribute any amount in excess of the proceeds received by such Selling Stockholder from the Underwriters in the offering. The Underwriters’ obligations in this Section 8(e) to contribute are several in proportion to their respective underwriting obligations and not joint.

(f) In any proceeding relating to the Registration Statement, any Preliminary Prospectus, the Prospectus or any supplement or amendment thereto, each party against whom contribution may be sought under this Section 8 hereby consents to the jurisdiction of any court having jurisdiction over any other contributing party, agrees that process issuing from such court may be served upon it by any other contributing party and consents to the service of such process and agrees that any other contributing party may join it as an additional defendant in any such proceeding in which such other contributing party is a party.

(g) Any losses, claims, damages, liabilities or expenses for which an indemnified party is entitled to indemnification or contribution under this Section 8 shall be paid by the indemnifying party to the indemnified party as such losses, claims, damages, liabilities or expenses are incurred. The indemnity and contribution agreements contained in this Section 8 and the representations and warranties of the Company set forth in this Agreement shall remain operative and in full force and effect, regardless of (i) any investigation made by or on behalf of any Underwriter or any person controlling any Underwriter, the Company, its directors or officers, any persons controlling the Company, the Selling Stockholders or any person controlling any Selling Stockholder, (ii) acceptance of any Shares and payment therefor hereunder, and (iii) any termination of this Agreement. A successor to any Underwriter, or any person controlling any Underwriter, or to the Company or its directors or officers, or to any Selling Stockholder, or any person controlling the Company or any Selling Stockholder, shall be entitled to the benefits of the indemnity, contribution and reimbursement agreements contained in this Section 8.

9. DEFAULT BY UNDERWRITERS.

If on the Closing Date or the Option Closing Date, as the case may be, any Underwriter shall fail to purchase and pay for the portion of the Shares which such Underwriter has agreed to purchase and pay for on such date (otherwise than by reason of any default on the part of the Company or a Selling Stockholder), you, as Representatives of the Underwriters, shall use your commercially reasonable efforts to procure within 36 hours thereafter one or more of the other Underwriters, or any others or make other arrangements satisfactory to the Company and the Selling Stockholder, to purchase from the Company and the Selling Stockholders such amounts as may be agreed upon and upon the terms set forth herein, the Shares which the defaulting Underwriter or Underwriters failed to purchase. If during such 36 hours you, as such Representatives, shall not have

procured such other Underwriters, or any others, to purchase the Shares agreed to be purchased by the defaulting Underwriter or Underwriters, then (a) if the aggregate number of shares with respect to which such default shall occur does not exceed 10% of the Shares to be purchased on the Closing Date or the Option Closing date, as the case may be, the other Underwriters shall be obligated, severally, in proportion to the respective numbers of Shares which they are obligated to purchase hereunder, to purchase the Shares which such defaulting Underwriter or Underwriters failed to purchase, or (b) if the aggregate number of shares of Shares with respect to which such default shall occur exceeds 10% of the Shares to be purchased on the Closing Date or the Option Closing Date, as the case may be, the Company and the Selling Stockholders or you as the Representatives of the Underwriters will have the right, by written notice given within the next 36-hour period to the parties to this Agreement, to terminate this Agreement without liability on the part of the non-defaulting Underwriters or of the Company or of the Selling Stockholders except to the extent provided in Sections 5 and 8 hereof. In the event of a default by any Underwriter or Underwriters, as set forth in this Section 9, the Closing Date or Option Closing Date, as the case may be, may be postponed for such period, not exceeding seven days, as you, as Representatives, may determine in order that the required changes in the Registration Statement or in the Prospectus or in any other documents or arrangements may be effected. The term “Underwriter” includes any person substituted for a defaulting Underwriter. Any action taken under this Section 9 shall not relieve any defaulting Underwriter from liability in respect of any default of such Underwriter under this Agreement.

10. NOTICES.

All communications hereunder shall be in writing and, except as otherwise provided herein, will be mailed, delivered, telecopied or telegraphed and confirmed as follows: if to the Underwriters, to Deutsche Bank Securities Inc., 00 Xxxx Xxxxxx, 0^xx Xxxxx, Xxx Xxxx, Xxx Xxxx 00000; Attention: Syndicate Manager, with a copy to Deutsche Bank Securities Inc., 00 Xxxx Xxxxxx, Xxx Xxxx, Xxx Xxxx 00000, Attention: General Counsel; if to the Company or the Selling Stockholders, to Niku Corporation, 000 Xxxx Xxxxxx, Xxxxxxx Xxxx, Xxxxxxxxxx 00000, Attn: Xxxxxx Xxxxxx, with a copy to Skadden, Arps, Slate, Xxxxxxx & Xxxx LLP, 000 Xxxxxxxxxx Xxxxxx, Xxxxx 0000, Xxxx Xxxx, Xxxxxxxxxx 00000, Attention: Xxxxxxx X. Xxxxx, Esq. and Xxxxxxx X. Xxxxxx, Esq.

11. TERMINATION.

This Agreement may be terminated by you by notice to the Company and the Selling Stockholders (a) at any time prior to the Closing Date or any Option Closing Date (if different from the Closing Date and then only as to Option Shares) if any of the following has occurred: (i) since the respective dates as of which information is given in the Registration Statement and the Prospectus, any Material Adverse Change, whether or not arising in the ordinary course of business, which makes it, in your sole and reasonable judgment, impractical or inadvisable to proceed with the transfer, sale or delivery of the shares in the manner contemplated in the Prospectus, (ii) any outbreak or escalation of hostilities or declaration of war or national emergency or other national or international calamity or crisis or change in economic or political conditions if the effect of such outbreak, escalation, declaration, emergency, calamity, crisis or change on the financial markets of the United States would, in your sole and reasonable judgment, make it impracticable or inadvisable to market the Shares or to enforce contracts for the sale of the Shares, or (iii) suspension of trading in securities generally on the New York Stock Exchange, the American Stock Exchange or the Nasdaq National Market or limitation on prices (other than limitations on hours or numbers of days of trading) for

securities on either such Exchange, (iv) the enactment, publication, decree or other promulgation of any statute, regulation, rule or order of any court or other governmental authority which, in your sole and reasonable judgment, makes it impracticable or inadvisable to market the Shares or to enforce contracts for the sale of the Shares, (v) the declaration of a banking moratorium by United States or New York State authorities, (vi) any downgrading, or placement on any watch list for possible downgrading, in the rating of any of the Company’s debt securities by any “nationally recognized statistical rating organization” (as defined for purposes of Rule 436(g) under the Exchange Act); (vii) the suspension of trading of the Company’s common stock by the Nasdaq National Market, the Commission, or any other governmental authority or, (viii) the taking of any action by any governmental body or agency in respect of its monetary or fiscal affairs which in your reasonable opinion has a material adverse effect on the securities markets in the United States; or

(b) as provided in Sections 6 and 9 of this Agreement.

12. SUCCESSORS.

This Agreement has been and is made solely for the benefit of the Underwriters, the Company and the Selling Stockholders and their respective successors, executors, administrators, heirs and assigns, and the officers, directors and controlling persons referred to herein, and no other person will have any right or obligation hereunder. No purchaser of any of the Shares from any Underwriter shall be deemed a successor or assign merely because of such purchase.

13. INFORMATION PROVIDED BY UNDERWRITERS.

The Company, the Selling Stockholders and the Underwriters acknowledge and agree that the only information furnished or to be furnished by any Underwriter to the Company for inclusion in any Prospectus or the Registration Statement consists of the information set forth in the third, ninth through fourteenth and sixteenth paragraphs under the caption “Underwriting” in the Prospectus.

14. MISCELLANEOUS.

The reimbursement, indemnification and contribution agreements contained in this Agreement and the representations, warranties and covenants in this Agreement shall remain in full force and effect regardless of (a) any termination of this Agreement, (b) any investigation made by or on behalf of any Underwriter or controlling person thereof, or by or on behalf of the Company or its directors or officers and (c) delivery of and payment for the Shares under this Agreement.

This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

This Agreement shall be governed by, and construed in accordance with, the law of the State of New York without regard to the conflict of laws provisions thereof.

[Signature Page Follows]

If the foregoing letter is in accordance with your understanding of our agreement, please sign and return to us the enclosed duplicates hereof, whereupon it will become a binding agreement among the Selling Stockholders, the Company and the several Underwriters in accordance with its terms.

Any person executing and delivering this Agreement as Attorney-in-Fact for a Selling Stockholder represents by so doing that he has been duly appointed as Attorney-in-Fact by such Selling Stockholder pursuant to a validly existing and binding Power of Attorney which authorizes such Attorney-in-Fact to take such action.


Very truly yours,

NIKU CORPORATION

By		/s/ Xxxxxx Xxxxxx
		President

WaldenVC II, L.P.
WALDENVC II-SIDE, L.P.

By		/s/ Xxxxxxx Xxxxxxxxxx
		Attorney-in-Fact

The foregoing Underwriting Agreement

is hereby confirmed and accepted as

of the date first above written.

DEUTSCHE BANK SECURITIES INC.

XXXXXXX & COMPANY, INC.

XX XXXXX & CO., LLC

AMERICA’S GROWTH CAPITAL, LLC

As Representatives of the several

Underwriters listed on Schedule I

By: Deutsche Bank Securities Inc.


By:		/s/ Tor Xxxxxx
		Managing Director
		Authorized Officer

By:		/s/ Ghazaleh Lyari
		Director
		Authorized Officer

EXHIBIT A

ALL SUBSIDIARIES OF THE COMPANY

Niku Canada Corporation

Niku Corporation Ltd.*

Niku Corporation GmbH

Niku Corporation BV*

Niku France SAS

Niku Australia Pty Ltd.*

Applied Business Technology A.G. (to be dissolved)

Niku Europe B.V. (to be dissolved)

*	See Section 4(a)(xvi)

EXHIBIT B

FORM OF LOCKUP AGREEMENT

LOCK-UP AGREEMENT

December , 2004

Niku Corporation

000 Xxxx Xxxxxx

Xxxxxxx Xxxx, XX 00000

Deutsche Bank Securities Inc.

As Representatives of the

Several Underwriters

c/o Deutsche Bank Securities Inc.

00 Xxxx Xxxxxx, 0^xx Xxxxx

Xxx Xxxx, Xxx Xxxx 00000

Ladies and Gentlemen:

The undersigned understands that Deutsche Bank Securities Inc. and , as representatives (the “Representatives”) of the several underwriters (the “Underwriters”), propose to enter into an Underwriting Agreement (the “Underwriting Agreement”) with Niku Corporation, a Delaware corporation (the “Company”), providing for the public offering by the Underwriters, including the Representatives, of common stock, par value $0.0001 (the “Common Stock”), of the Company (the “Public Offering”).

To induce the Underwriters that may participate in the Public Offering to continue their efforts in connection with the Public Offering, the undersigned agrees that, without the prior written consent of the Representatives, the undersigned will not, directly or indirectly, offer, sell, pledge, contract to sell (including any short sale), grant any option to purchase or otherwise dispose of any shares of Common Stock (including, without limitation, shares of Common Stock of the Company which may be deemed to be beneficially owned by the undersigned on the date hereof in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”), shares of Common Stock which may be issued upon exercise of a stock option or warrant and any other security convertible into or exchangeable for Common Stock) or enter into any Hedging Transaction (as defined below) relating to the Common Stock (each of the foregoing referred to as a “Disposition”) during the period specified in the following paragraph (the “Lock-Up Period”). The foregoing restriction is expressly intended to preclude the undersigned from engaging in any Hedging

Transaction or other transaction which is designed to or reasonably expected to lead to or result in a Disposition during the Lock-Up Period even if the securities would be disposed of by someone other than the undersigned. “Hedging Transaction” means any short sale (whether or not against the box) or any purchase, sale or grant of any right (including, without limitation, any put or call option) with respect to any security (other than a broad-based market basket or index) that includes, relates to or derives any significant part of its value from the Common Stock.

The initial Lock-Up Period will commence on the date of the filing of the preliminary prospectus supplement relating to the Public Offering with the SEC pursuant to Rule 424 of the Securities Act of 1933, as amended, and will continue until, and include, the date that is 90 days after the date of the final prospectus relating to the Public Offering (the “Initial Lock-Up Period”); provided, however, that if (1) during the last 17 days of the Initial Lock-Up Period, (A) the Company releases earnings results or (B) material news or a material event relating to the Company occurs, or (2) prior to the expiration of the Initial Lock-Up Period, the Company announces that it will release earnings results during the 16-day period following the last day of the Initial Lock-Up Period, then with respect to clause (1), the Lock-Up Period will be extended until the expiration of the 18-day period beginning on the date of the release of the earnings results or the occurrence of material news or a material event relating to the Company, as the case may be, or with respect to clause (2), the Lock-Up Period will be extended until the earlier of (i) the expiration of the 18-day period beginning on the date of the announcement that the Company will release earnings results or (ii) the expiration of the 2-day period beginning on the date of the release of the earnings results, unless, in each case, the Representatives waive, in writing, such extension.

Notwithstanding the foregoing, the undersigned may transfer (a) shares of Common Stock acquired in open market transactions by the undersigned after the completion of the Public Offering, and (b) any or all of the shares of Common Stock or other Company securities if the transfer is (i) by gift, will or intestacy, (ii) to any custodian or trustee for the account of the undersigned or such undersigned’s immediate family, or (iii) by distribution to partners, members or shareholders of the undersigned; provided, however, that in the case of a transfer pursuant to clause (b) above, it shall be a condition to the transfer that the transferee execute an agreement stating that the transferee is receiving and holding the securities subject to the provisions of this Lock-Up Agreement. “Immediate family” as used herein shall mean any child, stepchild, grandchild, parent, stepparent, grandparent, spouse, former spouse, sibling, niece, nephew, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother-in-law, or sister-in-law, including adoptive relationships.

The undersigned agrees that the Company may, and that the undersigned will, (i) with respect to any shares of Common Stock or other Company securities for which the undersigned is the record holder, cause the transfer agent for the Company to note stop transfer instructions with respect to such securities on the transfer books and records of the Company and (ii) with respect to any shares of Common Stock or other Company securities for which the undersigned is the beneficial holder but not the record holder, cause the record holder of such securities to cause the transfer agent for the Company to note stop transfer instructions with respect to such securities on the transfer books and records of the Company.

In addition, the undersigned hereby waives any and all notice requirements and rights with respect to registration of securities pursuant to any agreement, understanding or otherwise setting forth the terms of any security of the Company held by the undersigned, including any registration

rights agreement to which the undersigned and the Company may be party; provided that such waiver shall apply only to the proposed Public Offering, and any other action taken by the Company in connection with the proposed Public Offering.

The undersigned hereby agrees that, to the extent that the terms of this Lock-Up Agreement conflict with or are in any way inconsistent with any registration rights or other agreement to which the undersigned and the Company may be a party, this Lock-Up Agreement supersedes such registration rights or other agreement.

The undersigned hereby represents and warrants that the undersigned has full power and authority to enter into this Lock-Up Agreement. All authority herein conferred or agreed to be conferred shall survive the death or incapacity of the undersigned and any obligations of the undersigned shall be binding upon the heirs, personal representatives, successors and assigns of the undersigned.

Notwithstanding anything herein to the contrary, if the closing of the Public Offering has not occurred prior to March 31, 2005, this agreement shall be of no further force or effect.

Entity Name (if applic.):

Signature:

Print Name:


Number of shares owned subject to warrants, options or convertible securities:		Certificate numbers:

SCHEDULE I

SCHEDULE OF UNDERWRITERS


Underwriter		Number of Firm Shares to be Purchased
Deutsche Bank Securities Inc.		1,176,000
Xxxxxxx & Company, Inc.		735,000
XX Xxxxx & Co., LLC		735,000
America’s Growth Capital, LLC		294,000
Xxxxx Xxxxxxxx, Inc.		60,000

Total		3,000,000

SCHEDULE II

SCHEDULE OF SELLING STOCKHOLDERS


Selling Stockholder		Number of Firm Shares to be Sold
WaldenVC II, L.P.		1,275,706
WALDENVC II-SIDE, L.P.		115,516

Total		1,391,222

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Table of Contents

3,000,000 Shares Niku Corporation Common Stock ($0.0001 Par Value) UNDERWRITING AGREEMENT

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