Prospectus Supplement filed under Rule 424(b)(3)
                                                      Registration No. 333-82368




                              Prospectus Supplement
                               Dated July 8, 2002

         The Prospectus dated May 15, 2002 relating to the offer for resale of
up to $701,960,000 aggregate principal amount of The Interpublic Group of
Companies, Inc.'s Zero-Coupon Convertible Senior Notes Due 2021, and such shares
of common stock as may be issued upon conversion of the notes, is hereby
supplemented to include the following information in the "Selling
Securityholders" table in the Prospectus Supplement dated May 16, 2002:

                                                           Aggregate Principal
                                                          Amount at Maturity of
               Selling Securityholders                    Notes That May be Sold
- -------------------------------------------------------   ----------------------

Credit Suisse First Boston Corporation(1)..............          $5,000,000

Onyx Fund Holdings, LDC................................         $30,500,000

Salomon Smith Barney Inc.(1)...........................          $2,055,000

Starvest Managed Portfolio.............................             $35,000

               Total of Above(2).......................         $37,590,000


                  The "Selling Securityholders" table in the Prospectus, as
         supplemented, is amended so that the aggregate principal amount at
         maturity of notes held by Lyxor Master Fund Ref: Argent/LowLev CB is
         increased from $1,000,000 to $1,500,000 and the aggregate principal
         amount at maturity of notes held by S.A.C. Capital Associates, LLC is
         increased from $22,250,000 to $22,750,000





(1) This selling securityholder is a broker-dealer.

(2) Although the additional holdings of the Selling Securityholders listed in
    this prospectus supplement will cause the aggregate principal amount at
    maturity of notes whose ownership is listed in the Prospectus dated May 15,
    2002 and in related prospectus supplements filed thereafter to exceed
    $701,960,000 (the aggregate principal amount at maturity of notes
    outstanding), the aggregate principal amount at maturity of notes
    outstanding has not been and will not be increased. We believe that the
    excess described above was caused by the fact that certain Selling
    Securityholders may have transferred the unregistered notes without
    notifying us.