DELTEK, INC Contracts & Agreements

AGREEMENT AND PLAN OFMERGER by and among PROJECT DIAMOND HOLDINGS CORPORATION, PROJECT DIAMOND MERGER CORP., and DELTEK, INC. Dated August 26, 2012 TABLE OF CONTENTS (Filed With SEC on August 27, 2012)

WRITTEN CONSENT AND VOTING AGREEMENT BY AND AMONG PROJECT DIAMOND HOLDINGS CORPORATION, NEW MOUNTAIN PARTNERS II, L.P., NEW MOUNTAIN AFFILIATED INVESTORS II, L.P., ALLEGHENY NEW... (Filed With SEC on August 27, 2012)

[Letterhead of Maconomy] (Filed With SEC on March 15, 2012)

[remainder of page left intentionally blank] (Filed With SEC on August 9, 2011)

[Letterhead of Flagstad Law Firm] (Filed With SEC on March 16, 2011)

[remainder of page left intentionally blank] (Filed With SEC on March 16, 2011)

[remainder of page left intentionally blank] (Filed With SEC on November 6, 2009)

[Remainder of page intentionally left blank] (Filed With SEC on August 7, 2009)

Annex A Definitions (Filed With SEC on March 13, 2009)

OFFICER RESTRICTED STOCK AGREEMENT (Filed With SEC on March 13, 2009)

OFFICER RESTRICTED STOCK AGREEMENT (Filed With SEC on May 15, 2008)

$[] DELTEK, INC. Common Stock UNDERWRITING AGREEMENT (Filed With SEC on October 15, 2007)

Deltek, Inc. 13800 Dulles Corner Lane Herndon, Virginia 20171 September 26, 2007 (Filed With SEC on October 15, 2007)

DELTEK, INC. SUMMARY OF EMPLOYEE INCENTIVE COMPENSATION PLAN (Filed With SEC on October 15, 2007)

CUSTODY AGREEMENT (Filed With SEC on October 5, 2007)

AMENDMENT NO. 1 TO INVESTORS RIGHTS AGREEMENT DATED AS OF August 10, 2007 (Filed With SEC on August 21, 2007)

DELTEK, INC. 2007 STOCK INCENTIVE AND AWARD PLAN DELTEK, INC. 2007 STOCK INCENTIVE AND AWARD PLAN Table of Contents (Filed With SEC on August 21, 2007)

DELTEK SYSTEMS, INC. EMPLOYEE STOCK PURCHASE PLAN (Filed With SEC on August 21, 2007)

Annex A Definitions (Filed With SEC on August 21, 2007)

- 2 - (Filed With SEC on August 21, 2007)

Annex A Definitions (Filed With SEC on August 21, 2007)

- 2 - (Filed With SEC on August 21, 2007)

Annex A Definitions (Filed With SEC on August 21, 2007)

Form of Director Stock Option Agreement (Filed With SEC on August 21, 2007)

RECAPITALIZATION AGREEMENT (Filed With SEC on May 8, 2007)

AMENDMENT NO. 1 TO RECAPITALIZATION AGREEMENT (Filed With SEC on May 8, 2007)

AMENDMENT NO. 2 TO RECAPITALIZATION AGREEMENT (Filed With SEC on May 8, 2007)

ADVISORY AGREEMENT (Filed With SEC on May 8, 2007)

DELTEK (Filed With SEC on May 8, 2007)

INVESTOR RIGHTS AGREEMENT by and among DELTEK SYSTEMS, INC., (Filed With SEC on May 8, 2007)