Coldwell Banker is an American-based large real estate franchise founded in 1906 in San Francisco. Coldwell Banker has an international presence, with offices on six continents, 46 countries and territories. There are more than 600 Coldwell Banker offices outside of the United States. The company is owned by Realogy, which also owns Century 21 Real Estate, Corcoran Real Estate, Sotheby’s International Realty, Better Homes and Gardens Real Estate and ERA Real Estate.