Mark O'Brien – Biography
Last update: 4 days agoExecutive profile
Mark was Global Chief Operating and Financial Officer at Interbrand, and President and Chief Executive Officer, North America at DDB Worldwide. Mark O'Brien joined Omnicom in 2021.
Mark O'Brien is currentlyChief Executive Officer, Omnicom Brand Consulting Group at Omnicom - View - Omnicom org chart
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Education
Mark O'Brien has a Bachelor of Science in Accounting from University of Mississippi.
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Company Colleagues
- At Omnicom, Mark O'Brien has 6388 colleagues including John Wren (CEO & Chairman), Lee Wyatt (Director)…
Homonyms
- Mark O'Brien - Executive Vice President and General Counsel - Baffinland Iron Mines
- Mark O'Brien - Chief Operating Officer - SSH
- Mark O'Brien - Director - St John of God Health Care
- Mark O'Brien - Chief Technology Officer - The Magnum Ice Cream Company
- Mark O'Brien - Vice President Sales, Ontario - Trader Corporation
- Mark O'Brien - Senior Accountant - Validity
- Mark O'Brien - Chief Financial Officer - Vitesse
- Mark O'Brien - Global Head of Legal - Wellington Management
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Industry Colleagues
- In the Communication & Sales industry, Mark O'Brien has 49,610 colleagues in 2,904 companies located in 68 countries. 17,805 executive movements have been recorded in the last 12 months. Learn more about Communication & Sales.
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