Exhibit 24.1
POWER OF ATTORNEY
KNOW ALL PEOPLE BY THESE PRESENTS, that each of the undersigned officers and directors of DELTEK, INC., a Delaware corporation (the “Corporation”), whose signature appears below hereby appoints Kevin T. Parker and David R. Schwiesow and each of them severally, acting alone and without the other, his/her true and lawful attorney-in-fact with full power of substitution or re-substitution, for such person and in such person’s name, place and stead, in any and all capacities, to sign on such person’s behalf, individually and in each capacity stated below, a registration statement on Form S-8 (or other appropriate form) (the “Registration Statement”) relating to the proposed issuance of Common Stock, par value $0.001, of the Corporation and other securities pursuant to the Deltek, Inc. Amended and Restated 2007 Stock Incentive and Award Plan (the “Plan”) (or any and all amendments, including post-effective amendments, to such Registration Statement) and any additional registration statement pursuant to General Instruction E of Form S-8 to register additional shares of Common Stock of the Corporation as may become issuable under the terms of the Plan, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, as fully to all intents and purposes as such person might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact, or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof.
| Name and Signature | Title | Date | ||
/s/ Kevin T. Parker | Chairman, President and Chief Executive Officer | February 28, 2011 | ||
| Kevin T. Parker | (Principal Executive Officer) | |||
/s/ Michael P. Corkery Michael P. Corkery | Executive Vice President, Chief Financial Officer and Treasurer (Principal Financial Officer) | February 28, 2011 | ||
/s/ Michael L. Krone Michael L. Krone | Senior Vice President, Corporate Controller and Assistant Treasurer (Principal Accounting Officer) | February 28, 2011 | ||
/s/ Nanci E. Caldwell | Nanci E. Caldwell | February 28, 2011 | ||
| Nanci E. Caldwell | (Director) | |||
| Edward R. Grubb | February , 2011 | ||
| Edward R. Grubb | (Director) | |||
/s/ Joseph M. Kampf | Joseph M. Kampf | February 28, 2011 | ||
| Joseph M. Kampf | (Director) | |||
| Steven B. Klinsky | February , 2011 | ||
| Steven B. Klinsky | (Director) | |||
/s/ Thomas M. Manley | Thomas M. Manley | February 28, 2011 | ||
| Thomas M. Manley | (Director) | |||
/s/ Albert A. Notini | Albert A. Notini | February 28, 2011 | ||
| Albert A. Notini | (Director) | |||
/s/ Janet R. Perna | Janet R. Perna | February 28, 2011 | ||
| Janet R. Perna | (Director) | |||
/s/ Alok Singh | Alok Singh | February 28, 2011 | ||
| Alok Singh | (Director) | |||
