Attached files

file filename
EX-32 - SECTION 906 CEO & CFO CERTIFICATION - PEGASYSTEMS INCdex32.htm
EX-31.2 - SECTION 302 CFO CERTIFICATION - PEGASYSTEMS INCdex312.htm
EX-10.9 - FORM OF RESTRICTED STOCK UNIT AGREEMENT, AS AMENDED - PEGASYSTEMS INCdex109.htm
EX-10.8 - FORM OF EMPLOYEE STOCK OPTION AGREEMENT, AS AMENDED - PEGASYSTEMS INCdex108.htm
EX-31.1 - SECTION 302 CEO CERTIFICATION - PEGASYSTEMS INCdex311.htm
EX-21.1 - SUBSIDIARIES - PEGASYSTEMS INCdex211.htm
10-K - FORM 10-K - PEGASYSTEMS INCd10k.htm

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-09305, 333-53746, 333-89707, 333-104788, 333-116660, and 333-135596 on Form S-8 of our reports dated February 22, 2010 relating to the financial statements of Pegasystems Inc. and the effectiveness of Pegasystems Inc.’s internal control over financial reporting, appearing in this Annual Report on Form 10-K of Pegasystems Inc. for the year ended December 31, 2009.

/s/ DELOITTE & TOUCHE LLP

Boston, Massachusetts

February 22, 2010