NRT is the #1 residential real estate brokerage company in the US. It holds and operates the company-owned brokerage businesses of parent Realogy Corporation, which also owns such brand names as Coldwell Banker, Sotheby's International Realty, ERA, and Corcoran Group. NRT provides commercial and investment property services through Coldwell Banker Commercial; group affiliates offer title, warranty, mortgage, and other support services. The group operates some 750 offices in more than 35 major metropolitan areas throughout the US. Real estate franchisor Cendant (now Avis Budget Group) established the company as National Realty Trust in 1996. In 2012 Realogy parent Domus filed to take itself public.