Door.com is a real estate technology company that provides a platform for buying and selling homes. The company was founded in 2015 and is headquartered in Austin, Texas. Door.com offers a unique approach to real estate by providing a flat fee for its services, rather than charging a commission based on the sale price of the home. The company also offers a suite of tools and services to help buyers and sellers navigate the real estate process, including a mobile app, virtual tours, and a team of licensed agents.