EXHIBIT 23 Consent of Independent Accountants We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 33-71792, 33-55117 and 33-52871) of Barrett Business Services, Inc. of our report dated February 6, 1995 appearing on page 21 of this Annual Report on Form 10-K. PRICE WATERHOUSE LLP Portland, Oregon March 29, 1995