Knock is an online home selling platform that provides homeowners a guaranteed way to sell their home in six weeks or less without risk, stress, and uncertainty. Launched by founding team members from Trulia.com, the company uses data science to price homes accurately, technology to sell homes quickly and a dedicated team of professionals to guide homeowners through the selling process. Knock ensures a simple and certain process by guaranteeing the sale of its listed homes or it will purchase the home at full market value.