AOA is a medium-sized corporate group, comprising Apparatebau Gauting GmbH, AOA Avionics Dresden GmbH and Luftfahrtgeräte Gauting GmbH. The company supplies system solutions in air exchange, water supply and waste water removal, fire protection and air conditioning for aircraft and rail vehicles. In addition to its head office in Gauting near Munich, the company has a branch in Dresden, and service centers in the USA and Asia.