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 Informatica Corporation (the
"Company") on Form 10-K for the year ending December 31, 2003, as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), Gaurav S.
Dhillon, Chief Executive Officer, and Earl E. Fry, Chief Financial Officer, of
the Company, each certify, pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 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.

      A signed original of this written statement required by Section 906 has
been provided to the Company and will be retained by the Company and furnished
to the Securities and Exchange Commission upon request.

/s/ GAURAV S. DHILLON
- -----------------------
Gaurav S. Dhillon
Chief Executive Officer
March 10, 2004




/s/ EARL E. FRY
- -----------------------
Earl. E. Fry
Chief Financial Officer
March 10, 2004