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, Andrew Zimmerman, 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 Predictive Systems, Inc. on Form 10-K for the annual period ended
December 31, 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 Form 10-K fairly presents in all material respects the financial
condition and results of operations of Predictive Systems, Inc.


By: /s/ ANDREW ZIMMERMAN
Andrew Zimmerman
Chief Executive Officer
April 30, 2003



I, Neeraj Sethi, 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 Predictive Systems, Inc. on Form 10-K for the annual period ended
December 31, 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 Form 10-K fairly presents in all material respects the financial
condition and results of operations of Predictive Systems, Inc.


By: /s/ NEERAJ SETHI
Neeraj Sethi
Chief Financial Officer
April 30, 2003