Omnicom PR Group Appoints Kiersten Zweibaum Global Chief Growth and Marketing Officer

Kiersten Zweibaum

Omnicom Public Relations Group (OPRG), a division of Omnicom Group’s Communications Consultancy Network has appointed Kiersten Zweibaum as Global Chief Growth and Marketing Officer (CGMO). She is tasked with expanding relationships with existing clients, identifying and securing new clients, and enhancing the OPRG brand externally to attract both talent and clients. Zweibaum will report to Chris Foster, CEO of OPRG.

“Throughout her career, Kiersten has held several leadership positions, from client director to practice leader to global head of growth at Ketchum,” said Foster. “Our agencies will benefit greatly from her diverse experience and dynamic leadership in pursuit of growth.”

Zweibaum began her career at Ketchum, one of OPRG’s global communications agencies, over 25 years ago, working with financial services and travel clients. A Ketchum “boomerang,” she spent four years at two WPP agencies – GCI Group and Ogilvy PR – leading their Global Corporate Practices before returning to the Ketchum world as Managing Director at Emanate, a Ketchum subsidiary.


Most recently, she served as Managing Director, Partner, Global Growth at Ketchum, overseeing business development, including a number of cross-Omnicom agency new business and organic growth engagements. She has also served as senior leader for several of Ketchum’s top global clients.

“During my time at Ketchum and Emanate, I’ve had the opportunity to work closely with many talented experts across OPRG and Omnicom agencies to solve the toughest business challenges for clients and prospects,” said Zweibaum. “I look forward to cultivating a collaborative, high-performance growth culture across all of our firms.”


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