EXHIBIT 32.1


                                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

In  connection  with the Quarterly Report of CCC Information Services Group Inc.
(the  "Company")  on Form 10-Q for the period ending September 30, 2003 as filed
with  the  Securities  Exchange Commission on the date hereof (the "Report"), I,
Githesh  Ramamurthy,  Chairman  and  Chief  Executive Officer of the Company, do
hereby  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
          Section  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.

          Date: October 29, 2003            By:    /s/ Githesh Ramamurthy
                                                   ----------------------
                                            Name:  Githesh Ramamurthy
                                            Title: Chairman and
                                                     Chief Executive Officer



In  connection  with the Quarterly Report of CCC Information Services Group Inc.
(the  "Company")  on Form 10-Q for the period ending September 30, 2003 as filed
with  the  Securities  Exchange Commission on the date hereof (the "Report"), I,
Reid  E.  Simpson,  Executive  Vice President and Chief Financial Officer of the
Company,  do  hereby  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
          Section  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.


          Date: October 29, 2003             By:    /s/ Reid E. Simpson
                                                    --------------------
                                             Name:  Reid E. Simpson
                                             Title: Executive Vice President and
                                                      Chief Financial Officer

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