Mercury Public Affairs is a privately owned firm headquartered in the US, part of Omnicom PR Group (OPRG). Formed in 1999, it employs approximately 390 professionals. The company functions as a national bipartisan government relations and strategic communications firm, offering services such as media relations, strategy and execution, federal government relations, international affairs, crisis communications, digital, think tank services, public opinion research, and a bipartisan grassroots mobilization network across all 50 states. It provides counsel to non-profits, foundations, universities, companies, and leaders. The firm maintains offices in Washington, D.C., New York, Texas, Florida, New Jersey, Illinois, California, and Pennsylvania, and also has an international presence.