Castle’s mission is to rationalize the rental process. Taking property rental—an experience that’s near universal, yet near-universally unpleasant—and redesigning it from the ground up to be simpler, smoother, and more efficient. Using software and on-demand labor, Castle automates the work of property management, empowering independent landlords to run their businesses professionally. Castle participated in Y Combinator’s W16 class. Find out more here.