Exhibit 32.1

                            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 Annual Report of Attunity Ltd. (the "Company") on Form
20-F/A for the period ending December 31, 2003 as filed with the Securities and
Exchange Commission on the date hereof (the "Report"), I, Aki Ratner, Chief
Executive 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 result of operations of the
Company.


/s/Aki Ratner*
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Aki Ratner
Chief Executive Officer

November 22, 2004

* The originally executed copy of this Certification will be maintained at the
Company's offices and will be made available for inspection upon request.