Exhibit 99.1

                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 Quarterly Report on Form 10-Q of NaviSite, Inc.
(the "Company") for the period ended April 30, 2003 as filed with the Securities
and Exchange Commission on the date hereof (the "Report"), the undersigned,
Arthur Becker, Chief Executive Officer of the Company, hereby certifies,
pursuant to 18 U.S.C. Section 1350, 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.

Dated: June 17, 2003                         /s/ Arthur Becker
                                            ----------------------------------
                                            Arthur Becker
                                            Chief Executive Officer

         A signed original of this written statement required by Section 906, or
other document authenticating, acknowledging, or otherwise adopting the
signature that appears in typed form within the electronic version of this
written statement required by Section 906, has been provided to NaviSite, Inc.
and will be retained by NaviSite, Inc. and furnished to the Securities and
Exchange Commission or its staff upon request.



                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 Quarterly Report on Form 10-Q of NaviSite, Inc.
(the "Company") for the period ended April 30, 2003 as filed with the Securities
and Exchange Commission on the date hereof (the "Report"), the undersigned, Jim
Pluntze, Chief Financial Officer of the Company, hereby certifies, pursuant to
18 U.S.C. Section 1350, 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.

Dated: June 17, 2003                         /s/ Jim Pluntze
                                            ----------------------------------
                                            Jim Pluntze
                                            Chief Financial Officer

         A signed original of this written statement required by Section 906, or
other document authenticating, acknowledging, or otherwise adopting the
signature that appears in typed form within the electronic version of this
written statement required by Section 906, has been provided to NaviSite, Inc.
and will be retained by NaviSite, Inc. and furnished to the Securities and
Exchange Commission or its staff upon request.