Latch, Inc. is a technology company that provides an integrated ecosystem of hardware, software, and services in the United States and Canada. Its cloud-based DOOR Platform manages smart access control devices such as locks, readers, and intercoms, as well as smart home devices. The company offers software including DOOR OS, Door App, Concierge Pro, and OpenKit, and hardware such as Latch Access Devices, Latch Intercom, Latch Link, DOOR Camera, and DOOR Hub. It serves real estate developers, builders, building owners, and property managers, and is headquartered in Olivette, Missouri.