Enviro Systems Inc. designs and manufactures environmental control systems that provide a safe and comfortable cabin environm ... ent. Our integrated systems provide automatic control of cabin pressure and temperature. Our product lines include bleed air valves, outflow valves, vapor cycle air conditioning components, centrifugal & axial fans, sensors, and digital & analog controllers. Enviro was founded in 1979 and it’s quality system is registered to the ISO9001-2008/AS9100 rev. C requirements. The company has approximately 170 non-union employees, and is housed in a modern 98,000 sq. ft. manufacturing facility. Enviro is located on the airport (SRE) in Seminole, OK, and is operated by an entrepreneurial management team with extensive aerospace engineering and manufacturing experience. read more