What are the subsidiaries of Omnicom Group Inc.?
Omnicom Group Inc. operates a diverse array of agencies and subsidiaries that specialize in various aspects of advertising, marketing, and communications. Some of the well-known subsidiaries include BBDO, DDB Worldwide, and TBWA, which are prominent advertising agencies recognized for their creativity and strategic brand management. Additionally, Omnicom owns several media agencies, such as OMD and PHD, which focus on media planning and buying, helping clients optimize their media strategies to reach target audiences effectively.
In the field of public relations, Omnicom's subsidiaries include FleishmanHillard and Ketchum, both of which provide communication strategies and reputation management services to clients across different industries. The group also features specialty agencies such as Omnicom Health Group, which concentrates on healthcare marketing and communications. Other notable subsidiaries are Porter Novelli, which specializes in public relations and communications, and numerous digital marketing firms that address the evolving landscape of online engagement.
The overall structure of Omnicom Group Inc. comprises hundreds of agencies under its umbrella, working collaboratively to offer comprehensive solutions to a wide array of clients. For a complete and up-to-date list of subsidiaries, it may be helpful to visit the official Omnicom website for more detailed information.

Answered Sep 19, 2025
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