Greenberg Quinlan Rosner

Greenberg Quinlan Rosner, founded in 1980, is a opinion research and strategic consulting firm based in Washington DC. The firm serves a variety of clients such as leading candidates, parties, government leaders, corporations, and advocacy groups across the United States and internationally. Their clients include Verizon, Boeing, CNBC, and a number of former and current politicians. Greenberg Quinlan Rosner operates offices in New York, London, and Toronto along with its global headquarters in Washington DC.