The GGT Group plc. to Merge with TBWA International.

NEW YORK--(BUSINESS WIRE)--May 15, 1998--Omnicom Group Inc. (NYSE:OMC) today announced the merger of BDDP Worldwide and TBWA International. The new entity will be named TBWA Worldwide.

This follows the completion of Omnicom's acquisition of The GGT Group plc. and the combination creates one of the world's top ten advertising agency networks. The group has billings in excess of $6.5 billion with 101 offices in 62 countries and over 5,300 employees.

The merger brings together the creative capabilities of Lee Clow, Creative Director of TBWA International; Bela Stamenkovits, Creative Director of TBWA Holland; John Hunt, Creative Director of TBWA South Africa; and Marie-Catherine Dupuy, Worldwide Creative Director and Co-founder of BDDP. Mr. Clow will be the Chief Creative Officer Worldwide of the new company.

TBWA Chiat/Day was "1997 U.S. Agency of the Year" for both Advertising Age and AdWeek magazines. BDDP is consistently voted top French agency for both strategy and creativity and TBWA South Africa has been named "1997 Agency of the Year."

William G. Tragos, Co-founder of TBWA, will remain Chairman. Michael Greenlees, previously Chairman and CEO of the GGT Group, PLC, will become President and CEO of the enlarged company, taking over these responsibilities from William Tragos. Both Mr. Tragos and Mr. Greenlees will be based in New York.

Jean-Marie Dru, previously Chairman of BDDP Worldwide will be appointed President CEO International, based in Paris. Bob Kuperman, currently President and CEO of TBWA Chiat/Day North America, will be appointed to a new position as President/CEO of the Americas.

David Lake, currently Chief Financial Officer of TBWA, will take on the same role for the enlarged company. Alasdair Ritchie, previously President Europe TBWA, will become Senior Vice President, Operations. Eric Giuily, currently COO of BDDP, will become COO, International Division.

Regional Directors will continue in their positions: Reg Lascaris, Africa/Middle East; Rob Rosenthal, Latin America; Helmut Sendlmeier, Central and Eastern Europe; Keith Smith, Asia Pacific; and Rod Wright, Western Europe. Peter Economides will continue as Director of Network Clients.

John Wren, President and CEO of Omnicom said, "This new group brings together some of the most talented people in the advertising industry today. Both BDDP Worldwide and TBWA International share unique dedication to their clients and employees and I am confident that they will be one of the leading advertising networks of the millennium."

Bill Tragos, Chairman of TBWA said, "The infusion of more great talent into the network will maintain our momentum as one of the youngest and fastest-growing advertising groups. It will significantly improve our international competitiveness while remaining true to the founding values of TBWA and to the highest standards of creative excellence."

Michael Greenlees, President and CEO of TBWA said, "It is a privilege to have been asked to lead an organization so rich in talent. All of us are determined to see TBWA grow stronger with a continuing and abiding passion for outstanding ideas."

Omnicom Group Inc., the leading marketing communications company in the world, consists of advertising agency networks BBDO Worldwide, DDB Needham Worldwide and TBWA International. The group also includes Goodby Silverstein & Partners; and Diversified Agency Services (DAS), which operates a number of leading, independently branded agencies in marketing services and specialty advertising; and Communicade, a division of wholly owned and significant minority investment interests in several leading interactive and new media companies.

CONTACT: Omnicom Group Inc.

John Wren, 212/415-3776