BBSI Schedules Second Quarter 2005 Earnings Release and Conference Call

PORTLAND, Ore.--(BUSINESS WIRE)--July 26, 2005--Barrett Business

Services, Inc. (Nasdaq:BBSI) will announce its 2005 second quarter

operating results on Wednesday, August 3, 2005, after the market close

and will hold its regular quarterly conference call, Thursday, August

4, 2005, at 9:00 a.m. PT.

The dial-in number for this conference call is (877) 356-3717 and

the call identification number is 8219159. 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

11:00 a.m. PT on Thursday, August 4, 2005 and ending on August 11,

2005. The access telephone number for the replay is (800) 642-1687 and

the access code is 8219159.

BBSI provides a comprehensive range of human resource management

solutions to large and small companies throughout many regions of the

United States.

CONTACT: BBSI

William W. Sherertz

President and Chief Executive Officer

503-220-0988

SOURCE: Barrett Business Services, Inc.

Released July 26, 2005