BBSI Schedules Second Quarter 2008 Earnings Release and Conference Call

VANCOUVER, Wash., July 22, 2008 (PRIME NEWSWIRE) -- Barrett Business Services, Inc. (Nasdaq:BBSI) will announce its 2008 second quarter operating results on Tuesday, July 29, 2008, after the market close and will hold its regular quarterly conference call, Wednesday, July 30, 2008, at 9:00 a.m. PT.

The dial-in number for this conference call is (877) 356-3717 and the call identification number is 57362314. The conference call will be hosted by William W. Sherertz, President and Chief Executive Officer, and James D. Miller, Vice President-Finance, of BBSI. The conference call will also be webcast live at www.barrettbusiness.com. To access the webcast, click on the investor relations section of the website and select webcasts.

A replay of the conference call will be available beginning at 12:00 p.m. PT on Wednesday, July 30, 2008 and ending on August 6, 2008. The access telephone number for the replay is (800) 642-1687 and the access code is 57362314.

BBSI provides a comprehensive range of human resource management solutions to large and small companies throughout many regions of the United States.

CONTACT:  Barrett Business Services, Inc.
          William W. Sherertz, President and
            Chief Executive Officer
          (360) 828-0700

Released July 22, 2008