Attached files

file filename
10-K - FORM 10-K - BARRETT BUSINESS SERVICES INCd10k.htm
EX-32 - CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 - BARRETT BUSINESS SERVICES INCdex32.htm
EX-18 - LETTER RE CHANGE IN ACCOUNTING PRINCIPLES - BARRETT BUSINESS SERVICES INCdex18.htm
EX-21 - SUBSIDIARIES OF THE REGISTRANT - BARRETT BUSINESS SERVICES INCdex21.htm
EX-31.2 - CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13A-14(A) - BARRETT BUSINESS SERVICES INCdex312.htm
EX-10.20 - SUMMARY OF COMPENSATORY ARRANGEMENTS FOR NON-EMPLOYEE DIRECTORS - BARRETT BUSINESS SERVICES INCdex1020.htm
EX-31.1 - CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13A-14(A) - BARRETT BUSINESS SERVICES INCdex311.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 April 1, 2011, relating to the consolidated financial statements Barrett Business Services, Inc. (which report expresses an unqualified opinion and includes explanatory paragraphs for a correction of an error and a change in method of accounting), and the effectiveness of internal controls over financial reporting of Barrett Business Services, Inc. (which report expresses an adverse opinion), appearing in this Annual Report (Form 10-K) for the year ended December 31, 2010.

/s/ Moss Adams LLP

Portland, OR

April 1, 2011