EXHIBIT 99.1
CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
I, Thomas H. Sinton, certify, pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual
Report of ProBusiness Services, Inc. on Form 10-K for the fiscal year ended June
30, 2002 fully complies with the requirements of Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 and that information contained in such Annual
Report on Form 10-K fairly presents in all material respects the financial
condition and results of operations of ProBusiness Services, Inc.
By: /s/ Thomas H. Sinton
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Name: Thomas H. Sinton
Title: President and Chief Executive Officer
Date: September 30, 2002
I, Steve E. Klei, certify, pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual
Report of ProBusiness Services, Inc. on Form 10-K for the fiscal year ended June
30, 2002 fully complies with the requirements of Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 and that information contained in such Annual
Report on Form 10-K fairly presents in all material respects the financial
condition and results of operations of ProBusiness Services, Inc.
By: /s/ Steven E. Klei
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Name: Steven E. Klei
Title: Executive Vice President,
Finance, and Chief Financial Officer
Date: September 30, 2002