BBSI Schedules Second Quarter 2006 Earnings Release and Conference Call

VANCOUVER, Wash.--(BUSINESS WIRE)--July 13, 2006--Barrett Business

Services, Inc. (Nasdaq:BBSI) will announce its 2006 second quarter

operating results on Wednesday, July 26, 2006, after the market close

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

27, 2006, at 9:00 a.m. PT.

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

the call identification number is 3113032. 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, July 27, 2006, and ending on August 3,

2006. The access telephone number for the replay is 800-642-1687 and

the access code is 3113032.

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., Vancouver

William W. Sherertz, 360-828-0700

SOURCE: Barrett Business Services, Inc.

Released July 13, 2006