Coldwell Banker Residential Brokerage offers real estate services for buyers and sellers. It has had an office in Sudbury for 20-plus years, and serves the entire metro-west area. Sudbury Coldwell Banker Residential Brokerage is an affiliate with NE Moves Mortgage. This branch is part of Coldwell Banker, the oldest and one of the largest real estate companies in the United States, founded in 1906.