"Providing a superior level of informed, professional real estate services to buyers and sellers in the greater Sioux City area." We have been serving Sioux City and adjacent areas since 1980. Coldwell Banker Associated Brokers Realty, Inc. Sales Associates have for years been leaders in the Siouxland real estate community and all of our agents are members of the Sioux City Board of Realtors, and most of them have received national sales honors. They take great care in working with each customer to custom fit his or her needs.