BBSI Schedules First Quarter 2008 Earnings Release and Conference Call

VANCOUVER, Wash., April 17, 2008 (PRIME NEWSWIRE) -- Barrett Business Services, Inc. (Nasdaq:BBSI) will announce its 2008 first quarter operating results on Wednesday, April 23, 2008, after the market close and will hold its regular quarterly conference call, Thursday, April 24, 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 44463566. The conference call will be hosted by William W. Sherertz, President and Chief Executive Officer, and Michael D. Mulholland, 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 Web site and select webcasts.

A replay of the conference call will be available beginning at 12:00 p.m. PT on Thursday, April 24, 2008 and ending on May 1, 2008. The access telephone number for the replay is (800) 642-1687 and the access code is 44463566.

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

CONTACT: BBarrett Business Services, Inc.·

William W. Sherertz, President and Chief Executive Officer·

(360) 828-0700

Released April 17, 2008