Omnicom's branded networks and specialty firms provide services in four disciplines: advertising, customer relationship management, public relations and specialty services.
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| Omnicom Group |
| Omnicom Group Inc. is an American global media, marketing and corporate communications holding company, headquartered in New York City. |
| Omnicom's branded networks and specialty firms provide services in four disciplines: advertising, customer relationship management, public relations and specialty services. |
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