Prudential Gary Greene, Realtors is a Houston-based residential real estate company. The firm operates more than 25 offices in the greater Houston and Galveston areas and represents over 1,000 agents. It deals in the buying and selling of various types of residential properties. Prudential Gardner, Realtors is an independently owned and operated member of Prudential Real Estate Affiliates, which is one of the largest real estate brokerage franchise networks in North America that offers a range of services to homebuyers and sellers and has more than 2,200 offices throughout the United States, Canada and Mexico.