About
Thomas Harrison is Chairman Emeritus of Diversified Agency Services (DAS), the world's largest group of marketing services companies. A division of the Omnicom Group, DAS provides a broad range of marketing communications services including public relations, crisis management, branding, sales promotion, customer relationship management and specialty communications such as health care advertising for some of the largest global brands. With over 5000 worldwide clients, the DAS division has annual revenues of almost $5.0 billion and is the largest unit within Omnicom, itself the world's largest advertising holding company. Harrison's multi-faceted career brought him to Omnicom in 1992 when the firm he co-founded, Harrison & Star Business Group, the most successful and rapidly growing agency in the healthcare industry at the time, was acquired. He was appointed President of DAS in 1997 and was named Chairman and Chief Executive of DAS in 1998. Harrison serves on a number of prestigious b
Position in the VCSift Database
- • 2 investors at Merida Capital Holdings are tracked.
- • 5 investors hold the Senior Operating Partner role in VCSift. Thomas L. Harrison is one of them.
- • 11 investors are based in Armonk, New York, United States.
Data sourced from 410,343 investor profiles. Updated July 2026.
Investment Focus
- Location
- Armonk, US
Contact Information
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