John D. Wren
Chairman & Chief Executive Officer
Executive
11 reports
Omnicom Group Inc. ·OMC
Business Services · Fortune #276 · Holding structure · 75K employees · New York, New York
Sourced from Omnicom Group Inc. DEF 14A · filed 2026-03-26 ↗ View on SEC
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Download the CSV data insteadTwo Co-COOs now run Omnicom’s operations following the IPG acquisition, both reporting directly to CEO John Wren. This page maps the enterprise leadership structure, analyzes CEO span and tenure, and compares Omnicom’s post-merger model with major advertising holding-company peers.
What to model
Start with the public baseline, then use the scenario views and source-backed changes to ask what happens when leadership, span, or team ownership shifts.
Appointed following the completion of the IPG acquisition on 2025-11-26.
Source · See change logThe people
8 executives identified as Named Executive Officers in the most recent SEC proxy. Bar length scales with tenure.
Chairman & Chief Executive Officer
Executive
11 reports
Co-President & Co-Chief Operating Officer
Operations
0 reports
Co-President & Co-Chief Operating Officer
Operations
0 yr
0 reports
Executive Vice President & Chief Financial Officer
Finance
3 reports
Senior Vice President, General Counsel & Secretary
Legal
2 reports
Chief Growth Officer
Growth
0 reports
Chief Technology Officer
Technology
0 reports
Senior Vice President & Treasurer
Finance
0 reports
The pay
From the most recent DEF 14A Summary Compensation Table. 1 named executive officers disclosed. Bar length scales with total compensation.
The skin in the game
Insider stock holdings and the company's ownership requirements for executives and directors. Disclosed in the most recent DEF 14A.
Stock ownership guidelines require multiples of base salary or cash retainer.
| Holder | Shares | % of class |
|---|---|---|
| John D. Wren | 2.39M | <1% |
The businesses
4 divisions report into the group CEO. Tile size scales with estimated headcount.
60K employees
Co-President & Co-Chief Operating Officer (Daryl D. Simm / Philippe Krakowsky)
Oversees agency networks, regions and client delivery across the combined Omnicom–IPG enterprise.
1K employees
EVP & Chief Financial Officer (Philip J. Angelastro)
Responsible for financial reporting, capital allocation, treasury and investor relations.
400 employees
SVP, General Counsel & Secretary (Louis F. Januzzi)
Manages legal risk, compliance, governance and regulatory matters globally.
4K employees
Chief Technology Officer (Open Role)
Leads enterprise platforms including Omni, data, identity and AI-enabled marketing systems.
The thesis
Two Co-Chief Operating Officers report directly to the CEO, an uncommon structure for a holding-company model of this size.
The comparison
Compared with peers like WPP and Publicis, Omnicom’s dual-COO model is distinctive. Most large advertising holding companies operate with either a single COO or decentralized regional CEOs. Omnicom’s approach emphasizes enterprise integration following the IPG acquisition, trading simplicity for continuity and …
Current signals
The most significant change is the shift to a dual Co-COO model following the IPG acquisition.
Year-over-year executive structure based on SEC proxy and annual filings.
IPG acquisition completed, introducing dual Co-COO structure.
Single COO structure prior to IPG merger.
The 2025 IPG acquisition added a second COO role and increased CEO span.
The board
2 directors. 1 of 2 independent (50%). Source: most recent DEF 14A.
Chairman & CEO, Omnicom
Former Founding Partner, Strategic Investment Group
Also on: White Mountains Insurance Group, Ltd.
The board, organized
1 standing committees. Audit and Compensation must be 100% independent under SEC rules; the rest vary.
John D. Wren has served as Chairman and CEO since 1997 and extended his term through 2028.
Omnicom operates a holding-company structure with strong enterprise-level functions and agency networks.
The CEO has seven direct reports, including two Co-Chief Operating Officers.
Following the IPG acquisition in November 2025, Omnicom adopted a dual Co-COO structure.
Yes. Omnicom has two Co-Chief Operating Officers: Daryl D. Simm and Philippe Krakowsky.
Reference
If you reference this page in research, analysis, or news writing, use one of the formats below. Citation includes the SEC filing source where applicable.
Creately. (2026). Omnicom Group Inc. organizational structure. Creately. Retrieved , from https://creately.com/org-chart/fortune-500/omnicom-group/"Omnicom Group Inc. Organizational Structure." Creately, April 1, 2026, https://creately.com/org-chart/fortune-500/omnicom-group/. Accessed .Creately. "Omnicom Group Inc. Organizational Structure." Last modified April 1, 2026. https://creately.com/org-chart/fortune-500/omnicom-group/.Omnicom Group Inc.. DEF 14A. Filed 2026-03-26. U.S. Securities and Exchange Commission. https://www.sec.gov/Archives/edgar/data/29989/000121390026034811/ea0274271-02.htmPermanent URL: https://creately.com/org-chart/fortune-500/omnicom-group/ · last updated 2026-04-01