Daryl Simm
Daryl Simm is the President and Chief Operating Officer of Omnicom Group.
Last updated Oct 18, 2026 by the ATDb Editorial Team
AI-drafted from public sources6 sources cited
Bio
Daryl Simm is the President and Chief Operating Officer of Omnicom Group. Simm joined Omnicom in 1998 as the founding CEO of Omnicom Media Group, building it from a startup into a division with more than 20,000 staff and over $30 billion in client billings. During that tenure, he established OMD Worldwide as one of the largest global media agencies, developed PHD Worldwide and Hearts & Science, launched Annalect — Omnicom's data and analytics practice — and drove the development of the Omni data platform, which operates in over 60 countries with hundreds of clients. Before joining Omnicom, Simm spent 14 years at Procter & Gamble, where he served as Worldwide Vice President of Media and General Manager of P&G Productions. Source 1: sec.gov — Omnicom Group Announces Two Top Executive Changes Source 2: mediapost.com — Major Shifts At Omnicom, Simm Named COO Of Parent ... Source 3: sheridancollege.ca — Daryl Simm | Pilon School of Business Hall of Fame