Form: 10-Q

Quarterly report pursuant to Section 13 or 15(d)

November 14, 2003

32.2

Published on November 14, 2003

EXHIBIT 32.2

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Barrett Business Services, Inc. (the
"Company") on Form 10-Q for the period ended September 30, 2003, as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I,
Michael D. Mulholland, Chief Financial Officer of the Company, certify, pursuant
to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act
of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.



/s/ Michael D. Mulholland
- -------------------------
Michael D. Mulholland
Chief Financial Officer
November 12, 2003