Exhibit(f)


                             SUPPLEMENTAL AGREEMENT
                             ----------------------

               SUPPLEMENTAL  AGREEMENT  made as of June 1, 2000,  by and between
THE INTERPUBLIC GROUP OF COMPANIES, INC., a corporation of the State of Delaware
(hereinafter  referred to as the  "Corporation"),  and Sean F. Orr  (hereinafter
referred to as "Executive"):

                               W I T N E S S E T H
                               - - - - - - - - - -

               WHEREAS,   the  Corporation  and  Executive  are  parties  to  an
Executive Severance  Agreement made as of January 1, 1998 (hereinafter  referred
to as the "Agreement"); and

               WHEREAS,  the  Corporation  and  Executive  desire  to amend  the
Executive Severance Agreement;

               NOW,  THEREFORE,  in  consideration of the mutual promises herein
and in the  Agreement  set forth,  the parties  hereto,  intending to be legally
bound, agree as follows:

               1.   Section 5.9. of the  Agreement is hereby  amended  effective
                    June 1, 2000,  so as to delete "Two (2.0)" and to substitute
                    therefor "Three (3)".

               2.   Except as hereinabove  amended, the Agreement shall continue
                    in full force and effect.

               3.   This Supplemental Agreement shall be governed by the laws of
                    the State of New York.

                                    THE INTERPUBLIC GROUP OF COMPANIES, INC.

                                    By     /s/ C. Kent Kroeber
                                      ----------------------------------------
                                               C. Kent Kroeber




                                             /s/ Sean F. Orr
                                      ----------------------------------------
                                                 Sean F. Orr