Omnicom Group is a holding company

Holding company

A holding company is a company or firm that owns other companies' outstanding stock. It usually refers to a company which does not produce goods or services itself; rather, its purpose is to own shares of other companies. Holding companies allow the reduction of risk for the owners and can allow...

 whose agencies provide marketing and communications services in the disciplines of advertising, customer relationship management (CRM), strategic media planning and buying, digital and interactive marketing, direct and promotional marketing, public relations (PR) and other specialty communications. Omnicom’s agency networks include BBDO

BBDO

BBDO is a worldwide advertising agency network, with its headquarters in New York City. The agency began in 1891 with George Batten's Batten Company, and later in 1928, through a merger of BDO and Batten Co. the agency became BBDO...

, DDB Worldwide

DDB Worldwide

DDB Worldwide Communications Group Inc., known internationally as DDB, is a worldwide marketing communications network. It is owned by Omnicom Group Inc, one of the world's largest advertising holding companies...

, TBWA Worldwide, Diversified Agency Services (DAS) and Omnicom Media Group (OMG).