Exhibit 99(b)
Annual Certification
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), each of the undersigned officers of The Interpublic Group of Companies, Inc., a Delaware corporation (the "Company"), does hereby certify, to such officer's knowledge, that:
The Annual Report on Form 10-K for the year ended December 31, 2002 of the Company fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Company.
Dated: March 28, 2003
	/s/ David A. Bell
	David A. Bell
	Chief Executive Officer
Dated: March 28, 2003
	/s/ Sean F. Orr
	Sean F. Orr
	Chief Financial Officer
The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) and is not being filed as part of the Form 10-K or as a separate disclosure document.