Environmental Tectonics Corporation (ETC) is an engineering firm with a focus on the aerospace industry. ETC is composed of two business segments: Aerospace Solutions and Commericial/Industrial Systems. Aerospace Solutions encompasses the design, manufacture, and sale of Aircrew Training Systems (a wide variety of motion based flight simulators, altitude chambers and pilot selection systems), and Advanced Disaster Management Simulators. Aerospace Solutions also includes integrated logistics support. Commercial/Industrial Systems encompasses the design, manufacture and sale of: Steam and gas sterilizers, Environmental testing and simulation devices, Hyperbaric chambers and parts and service support.