Zimmerman Partners was founded in 1984 and has grown to become the 19th largest advertising and marketing firm in the country. A subsidiary of Omnicom Group, the Fort Lauderdale-based firm has field offices located throughout the country with nearly 600 associates. The lead agency for AutoNation, Papa John's International, Florida Marlins, Florida Panthers and the Miami Dolphins, Zimmerman partners with sister agencies TBWA\Chiat\Day and BBDO of New York managing the regional and retail sides of Nissan North America and Office Depot.