Redfin is a technology-driven real estate brokerage that offers a platform for buying and selling homes. Founded in 2004, it provides users with access to real estate listings, market data, and tools to help them navigate the home buying or selling process. The company employs licensed real estate agents who assist clients while also utilizing advanced technology to streamline transactions. Redfin aims to reduce costs for buyers and sellers by offering lower commission rates compared to traditional real estate firms, making it an attractive option for many in the housing market.