Attached files

file filename
10-K - FORM 10-K - DELTEK, INCd10k.htm
EX-10.59 - EXHIBIT 10.59 - DELTEK, INCdex1059.htm
EX-10.60 - EXHIBIT 10.60 - DELTEK, INCdex1060.htm
EX-10.28 - EXHIBIT 10.28 - DELTEK, INCdex1028.htm
EX-31.2 - EXHIBIT 31.2 - DELTEK, INCdex312.htm
EX-21.1 - EXHIBIT 21.1 - DELTEK, INCdex211.htm
EX-32.1 - EXHIBIT 32.1 - DELTEK, INCdex321.htm
EX-31.1 - EXHIBIT 31.1 - DELTEK, INCdex311.htm
EX-10.62 - EXHIBIT 10.62 - DELTEK, INCdex1062.htm
EX-10.61 - EXHIBIT 10.61 - DELTEK, INCdex1061.htm

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement Nos. 333-147069, 333-158389, 333-165099, 333-169553, and 333-172625 on Form S-8 and in Registration Statement No. 333-162308 on Form S-3 of our reports dated March 15, 2011, relating to the consolidated financial statements of Deltek, Inc. and its subsidiaries and the effectiveness of Deltek, Inc. and its subsidiaries’ internal control over financial reporting, appearing in this Annual Report on Form 10-K of Deltek, Inc. for the year ended December 31, 2010.

/s/    DELOITTE & TOUCHE LLP        

McLean, Virginia

March 15, 2011