BBSI Sets Second Quarter 2011 Conference Call for Wednesday, July 27, 2011 at 12:00 p.m. ET

VANCOUVER, Wash., July 20, 2011 (GLOBE NEWSWIRE) -- Barrett Business Services, Inc. (BBSI) (Nasdaq:BBSI), a leading provider of business management solutions, will conduct a conference call on Wednesday, July 27, 2011 at 12:00 p.m. Eastern Time (9:00 a.m. Pacific Time) to discuss its financial results for the second quarter ended June 30, 2011. The Company plans to report its financial results in a press release after the market closes on Tuesday, July 26, 2011.

Michael L. Elich, BBSI President and Chief Executive Officer and James D. Miller, Chief Financial Officer will host the conference call, followed by a question and answer period.

Date: Wednesday, July 27, 2011
     Time: 12:00 p.m. Eastern Time (9:00 a.m. Pacific Time)
                             Dial-In Number: (877) 214-1511
                                   Conference ID#: 85722000

The conference call will be webcast live and available for replay via the Investor Relations section of the Company's website at www.barrettbusiness.com.

Please call the conference telephone number 5-10 minutes prior to the start time. An operator will register your name and organization and ask you to wait until the call begins. If you have any difficulty connecting with the conference call, please contact Liolios Group at (949) 574-3860.

A replay of the call will be available after 3:00 p.m. Eastern Time on the same day and until Wednesday, August 3.

Toll-free replay number: (855) 859-2056
                 Replay pin number: 85722000

About BBSI

BBSI (Nasdaq:BBSI) is a leading provider of business management solutions, combining human resource outsourcing and professional management consulting to create a platform distinguished from competitors in either industry. The Company's platform is built upon expertise in payroll processing, employee benefits, workers' compensation coverage, risk management and workplace safety programs, and human resource administration, which is uniquely integrated with high-level business consulting. BBSI partnerships help corporations of all sizes improve the efficiency of their operations. The company works with more than 2,000 clients across 25 states. For more information, please visit www.barrettbusiness.com.

Forward-Looking Statements

Statements in this release about future events or performance, including gross revenues and earnings expectations for the second quarter of 2011, are forward-looking statements, which involve known and unknown risks, uncertainties and other factors that may cause the actual results of the Company to be materially different from any future results expressed or implied by such forward-looking statements. Factors that could affect future results include economic conditions in the Company's service areas, the effect of changes in the Company's mix of services on gross margin, the Company's ability to retain current customers and attract new customers, future workers' compensation claims experience, the effect of changes in the workers' compensation regulatory environment in one or more of the Company's primary markets, the collectability of accounts receivable, and the effect of conditions in the global capital markets on the Company's investment portfolio, among others. Other important factors that may affect the Company's future prospects are described in the Company's 2010 Annual Report on Form 10-K. Although forward-looking statements help to provide complete information about the Company, readers should keep in mind that forward-looking statements may be less reliable than historical information. The Company undertakes no obligation to update or revise forward-looking statements in this release to reflect events or changes in circumstances that occur after the date of this release.

CONTACT: James D. Miller
         Chief Financial Officer
         (360) 828-0700

Released July 20, 2011