Omnicom executives bag top posts in new pecking order

Omnicom’s strategic, financial, and cultural blueprint is likely to set the tone for the combined organisation globally, say experts 

e4m by Kanchan Srivastava
Published: Dec 1, 2025 7:18 PM  | 3 min read
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In what industry observers are calling a decisive consolidation of power, Omnicom executives have secured a commanding majority of leadership positions in the unified Omnicom–IPG entity, signalling which side has prevailed in the world’s most closely watched advertising merger. 

While both groups had positioned the merger as a partnership of equals, the newly announced pecking order suggests Omnicom’s strategic, financial, and cultural blueprint will set the tone for the combined organisation globally.

According to the leadership chart shared by Omnicom, key operational roles—including CEO and CFO and heads of critical practice clusters such as media, data, and creative—have gone to veterans from the Omnicom fold. 

As previously announced, John Wren continues as Chairman & CEO; Phil Angelastro serves as EVP & CFO and Philippe Krakowsky and Daryl Simm serve as Co-Presidents and COOs.  

But out of 12 new global posts created post merger, only two (Jacky Kelly & Dana Maiman) has been entrusted with IPG group, indicating an almost sweeping assimilation.

Analysts say the leadership matrix reflects reality—not rhetoric. “Omnicom’s imprint on the new structure is unmistakable. If the leadership roster is the first visible clue, the cultural and operational direction of the merged entity is now abundantly clear,” said a senior executive familiar with the transition roadmap.

Analysts say this is not an accident but a reflection of Omnicom’s stronger balance sheet, unified systems, and long-standing positioning as a procurement-friendly, operationally lean organisation. By contrast, IPG—despite its creative pedigree and strong agency brands—entered the merger with leadership uncertainties and uneven geographic strength.

“Omnicom’s imprint on the new structure is unmistakable,” said a senior executive familiar with the transition roadmap. “If the leadership roster is the first visible clue, the cultural and operational direction of the merged entity is now abundantly clear.”

Capability leadership

A closer look at capability leadership—the true nerve system of a modern holding company—removes any lingering ambiguity. All horizontal functions, except one,- clubbed under Capability leadership-are being led by a legacy Omnicom executive. 

  • Florian Adamski, CEO, Omnicom Media, including Hearts & Science, Initiative, Mediahub, OMD, PHD, and UM, as well as Acxiom   

  • Chris Foster, CEO, Omnicom Public Relations, including FleishmanHillard, Golin, Ketchum, Porter Novelli, and Weber Shandwick  

  • Sergio Lopez, CEO, Omnicom Production, including Content Solutions, Production Management, and Studios 

  • Duncan Painter, CEO, Omni and Flywheel Commerce Network, featuring Omni, the advanced intelligence platform that will power all capabilities, and Flywheel, the market-leading commerce group 

  • Troy Ruhanen, CEO, Omnicom Advertising, including BBDO, McCann, TBWA, and the U.S. Advertising Collective 

  • Michael Larson, CEO, Diversified Agency Services, with reports including: 

    • Dana Maiman, CEO, Omnicom Health, including Healthcare Professional & Consumer, Medical Communications, Patient Engagement, and Managed Markets 

    • Mark O’Brien, CEO, Omnicom Branding, including Interbrand, Siegel+Gale, Sterling Brands, and Wolff Olins 

    • Luke Taylor, CEO, Omnicom Precision Marketing, including Credera, Critical Mass, and RAPP 

Enterprise-Wide Client Solutions roles:

  • Jacki Kelley, Chief Client & Business Officer, and Andrea Lennon, Client Experience Officer

  • George Manas, Chief Growth and Solutions Officer

Published On: Dec 1, 2025 7:18 PM