American Science and Engineering, Inc., together with its subsidiaries, develops, manufactures, markets, and sells X-ray inspection and other detection products for homeland security, force protection, and other critical defense applications in the United States and internationally. It offers cargo inspection systems comprising non-intrusive inspection products, which are primarily used for the screening of trucks, cars, cargo containers, pallets, and air cargo at border crossings, seaports, military bases, airports, and cargo and transportation hubs. The cargo inspection systems include OmniView gantry system, a cargo and vehicle inspection system; Z Portal system, a drive-through inspection system for scanning cargo and vehicles; Z Gantry system, a Z Backscatter inspection system for scanning cars, vans, trucks, and their cargo; Sentry Portal system, a drive through transmission X-ray inspection system; and MobileSearch High-Energy, a mobile inspection system for scanning trucks, cargo containers, and vehicles. The company also provides Z Backscatter systems, including Z Backscatter Van, a mobile X-ray screening system to produce photo-like images of plastic explosives or other anomalies; and ZBV Military Trailer, a rugged X-ray screening system built on military trailer. In addition, it offers parcel and personnel screening inspection system that comprises Gemini system, a parcel and baggage inspection system; and SmartCheck system, a personnel screening system. Further, the company provides contract research and development programs for agencies of the United States government; and maintenance, warranty, engineering, and training services. It serves authorities responsible for port and border security, customs agencies, military organizations, high threat commercial and government facilities, aviation security agencies, and law enforcement agencies. The company was founded in 1958 and is headquartered in Billerica, Massachusetts.