Keller Williams Advantage Realty is the No. 1 real estate company in Jefferson County, CO. Their Keller Williams Realtors are ready to help you with all your real estate needs. With over 200 agents and growing, Keller Williams Advantage Realty is the largest producing real estate brokerage in Jefferson County. KWA offers easy access to the entire Denver/Metro area and nearby mountain communities. In a company “built by agents for agents” this market center boasts an abundance of talented agents heavily involved in training, coaching, and skill development in all areas of real estate.