Attached files

file filename
EXCEL - IDEA: XBRL DOCUMENT - BARRETT BUSINESS SERVICES INCFinancial_Report.xls
10-K - FORM 10-K - BARRETT BUSINESS SERVICES INCd281108d10k.htm
EX-10.20 - SUMMARY OF COMPENSATORY ARRANGEMENTS FOR NON-EMPLOYEE DIRECTORS - BARRETT BUSINESS SERVICES INCd281108dex1020.htm
EX-21 - SUBSIDIARIES OF THE REGISTRANT - BARRETT BUSINESS SERVICES INCd281108dex21.htm
EX-31.1 - CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13A-14(A). - BARRETT BUSINESS SERVICES INCd281108dex311.htm
EX-31.2 - CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13A-14(A). - BARRETT BUSINESS SERVICES INCd281108dex312.htm
EX-32 - CERTIFICATION PURSUANT TO 18 U.S.C. SEXTION 1350 - BARRETT BUSINESS SERVICES INCd281108dex32.htm

EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-33487, 333-105833, and 333-161592) of our report dated March 15, 2012 relating to the consolidated financial statements of Barrett Business Services, Inc., and the effectiveness of internal control over financial reporting of Barrett Business Services, Inc. appearing in this Annual Report (Form 10-K) for the year ended December 31, 2011.

/s/ Moss Adams LLP

Portland, Oregon

March 15, 2012