Archangel Systems, Inc. designs, develops, and manufactures inertial sensing systems for aerospace, automotive, and military applications. The firm offers air data attitude heading reference systems, attitude heading reference systems, magnetic sensing units, and automatic flight controls for air-based applications; and vehicle predictive rollover systems and military-grade vehicle inclinometers for ground-based applications. Archangel Systems also offers technical services, such as obsolescence solutions, hardware and software design, inertial testing and calibration, and environmental testing; research and development services for various government offices and other corporations; and other customer support services. Formerly known as Archangel Avionics, Inc. the firm changed its name to Archangel Systems, Inc. in March 1999.