Coldwell Banker Gundaker is a residential real estate firm. Its services include relocation support, home cost evaluation and mortgage lending assistance. The firm also offers a variety of properties that includes condominiums, land lots, commercial buildings and multifamily houses. Coldwell Banker Gundaker employs more than 1,500 sales associates and maintains more than 18 offices. The firm is owned and operated by NRT, one of the largest residential real estate brokerage companies in the United States. NRT was founded in 1997 and is a subsidiary of Realogy Corporation. It offers services in more than 30 metropolitan markets through over 18 sales offices. Coldwell Banker Gundaker maintains several locations in St. Louis.