OMC

Omnicom Group Inc.

A global marketing and advertising holding company, Omnicom runs famous agency brands like BBDO, DDB, and TBWA, crafting ads, media, public relations, and digital commerce for clients across every industry. It was born in 1986 from a three-way merger of BBDO, DDB, and Needham Harper — a move designed to protect the agencies from 1980s hostile takeovers — and the name blends "omni" (all) with "communications." In November 2025 it absorbed Interpublic Group, creating one of the world's largest advertising companies.