GRAPHIC OMITTED
BBSI
4724 SW Macadam Avenue
Portland, Oregon 97239
503.220.0980
800.494.5669
Fax 503.220.0987
www.barrettbusiness.com
Memorandum
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DATE: April 27, 2005
TO: Owners of Common Stock of Barrett Business
Services, Inc. Previously Held in the Company's
the 401(k) Plan
FROM: Michael D. Mulholland
SUBJECT: Proxy solicitation in connection with the May 12,
2005 Annual Meeting of Stockholders
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The enclosed material, which consists of:
o 2004 Annual Report
o Proxy statement
o Proxy card
o Return envelope
After you have considered the enclosed information, please mark your votes on
the proxy card, sign the card, fold it and return it to James Miller in the
enclosed postage-paid envelope no later than May 9, 2005. Your vote will be
compiled with those of other owners of Barrett common stock and conveyed to the
Company's stock transfer agent, Mellon Investor Services.
Enclosures
cc: James D. Miller
Mary Ann Frantz