Kastle Systems is a security services company that provides access control and video surveillance solutions to commercial and residential properties. The company's products and services include keyless entry systems, visitor management systems, and remote video monitoring. Kastle Systems was founded in 1972 and is headquartered in Falls Church, Virginia. The company has a team of experienced professionals who are dedicated to providing high-quality security solutions to their clients. Kastle Systems has been recognized for its innovative products and services, and has won numerous awards for its work.