EXHIBIT 99.1       

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

          As of the date hereof, I, John Kunze, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Plumtree Software, Inc. on Form 10-Q for the fiscal quarter ended September 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 Quarterly Report on Form 10-Q fairly presents in all material respects the financial condition and results of operations of Plumtree Software, Inc..

By:	/s/  JOHN KUNZE
Name:	John Kunze
Title:	Chief Executive Officer
Dated:	November 12, 2002