Coldwell Banker Gundaker is one of the largest residential real estate service firms in Missouri. It is owned and operated by NRT, which is one of the leading residential real estate brokerage companies in the United States and a subsidiary of Realogy Corporation. Coldwell Banker Gundaker has a staff of more than 3,000 full-time trained and licensed sales associates. The firm provides services in more than 200 communities in St. Louis, St. Charles, Jefferson, Franklin, Warren and Lincoln counties in Missouri. It offers a variety of services that includes buying and selling properties, relocation, financing, and assistance with mortgage and loans. In addition, the firm offers advisory services for warranties, title, escrow, insurance and taxes. Coldwell Banker Gundaker operates more than 35 office locations in Missouri, including St. Peters.