Re: Collaboration Agreement, dated as of February 6, 2007, by and between The Corporate Executive Board Company and The Advisory Board Company (the “Collaboration Agreement”)
Exhibit 10.23
February 4, 2010
Xxxxxx X. Xxxxxxx, III
Chairman of the Board and Chief Executive Officer
The Corporate Executive Board Company
0000 Xxxxx Xxxx Xxxxxx
Xxxxxxxxx, XX 00000
Chairman of the Board and Chief Executive Officer
The Corporate Executive Board Company
0000 Xxxxx Xxxx Xxxxxx
Xxxxxxxxx, XX 00000
| Re: | Collaboration Agreement, dated as of February 6, 2007, by and between The
Corporate Executive Board Company and The Advisory Board Company (the “Collaboration
Agreement”) |
Dear Xxx:
This letter confirms that The Corporate Executive Board Company (“CEB”) and The Advisory Board
Company (“ABCO”) have agreed to extend the Initial NP Term and the Initial EC Term (as such terms
are defined in the Collaboration Agreement) through February 5, 2012 as contemplated by Sections
3.3(a) and 3.4(a) of the Collaboration Agreement, respectively, effective as of February 4, 2010.
Please indicate your agreement with the foregoing by signing and returning one copy of this
letter to my attention, which shall constitute CEB’s and ABCO’s agreement with respect to the
subject matter hereof.
| Very truly yours, |
||||
| /s/ Xxxxxx X. Xxxxxxxxxxx | ||||
| Xxxxxx X. Xxxxxxxxxxx | ||||
| Chief Executive Officer | ||||
| ACCEPTED AND AGREED: | ||||
| THE CORPORATE EXECUTIVE BOARD COMPANY | ||||
By:
|
/s/ Xxxxxx X. Xxxxxxx, III | |||
| Chairman of the Board and Chief Executive Officer | ||||
