EXHIBIT 32.1

                    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

        I, Moshe BenBassat, 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 ClickSoftware Technologies Ltd. on Form 10-Q for the quarter
ended September 30, 2004 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 ClickSoftware Technologies
Ltd. as of and for the periods presented in such Report on Form 10-Q. This
written statement is being furnished to the Securities and Exchange Commission
as an exhibit accompanying such Report and shall not be deemed filed pursuant to
the Securities Exchange Act of 1934.

Date: November 11, 2004

                                          By: /s/ Moshe Benbassat
                                             -----------------------------------
                                             Name:  Moshe BenBassat
                                             Title: Chairman and Chief Executive
                                                    Officer




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