BBDO
BBDO is a worldwide advertising agency network, with its headquarters in New York City. The agency originated in 1891 with the George Batten Company, and in 1928, through a merger with Barton, Durstine & Osborn (BDO), the agency became Batten, Barton, Durstine & Osborn. With more than 15,000 employees at 289 offices in 81 countries, it is the largest of three global networks of agencies in the portfolio of Omnicom Group.