Environmental Tectonics Corp. engages in the design, manufacture, and sale of software driven products. The firm also offers services used to create and monitor the physiological effects of motion on humans and equipment and to control, modify, simulate, and measure environmental conditions. It operates through the following business segments: Aerospace, Commercial/Industrial Systems (CIS), and Corporate. The Aerospace segment designs, manufactures, and sells aircrew training systems, altitude chambers, multi-place chambers, disaster management simulators, and integrated logistics support. The CIS segment handles the design, manufacture, and sale of steam and gas, environmental testing and simulation devices, mono-place chambers, and parts and services support for customers. The Corporate segment represents income, expenses, assets not specifically identifiable to an individual business group or applicable to all groups and general corporate expenses, and central administrative office expenses. The company was founded by William F. Mitchell in 1969 and is headquartered in Southampton, PA.