BBSI Prices New Public Offering

PORTLAND, Ore., Jul 28, 2005 (BUSINESS WIRE) -- Barrett Business Services, Inc. (Nasdaq:BBSI) today

announced the pricing of its underwritten public offering of 2,139,000

shares of common stock at a price to the public of $16.25 per share

before underwriting discounts and commissions. Of the 2,139,000 shares

to be sold in the offering, BBSI is offering and selling 1,864,000

shares and certain existing stockholders are offering and selling

275,000 shares. The Company has also granted the underwriters a 30-day

option to purchase 320,850 additional shares of stock to cover

over-allotments, if any.

Roth Capital Partners, LLC is acting as the lead managing

underwriter of the offering. The other managing underwriter is The

Seidler Companies Incorporated. The offering of the securities is

being made only by means of a prospectus, copies of which may be

obtained from Roth Capital Partners, LLC, Syndicate Department, 24

Corporate Plaza Drive, Newport Beach, CA 92660 (telephone:

949-720-7194).

This press release shall not constitute an offer to sell or a

solicitation of an offer to buy nor shall there be any sale of these

securities in any state or jurisdiction in which such offer,

solicitation or sale would be unlawful prior to registration or

qualification under the securities laws of such state or jurisdiction.

BBSI provides a comprehensive range of human resource management

solutions to large and small companies throughout many regions of the

United States.

SOURCE: Barrett Business Services, Inc.

Barrett Business Services, Inc.

President and Chief Executive Officer

William W. Sherertz, 503-220-0988

Released July 28, 2005