Liberty Defense Holdings, Ltd. (DETX)

Liberty Defense Holdings, Ltd. develops and sells security screening technology designed to detect concealed weapons and other threats. The company, founded in 2012, has its main U.S. operations in Wilmington, Massachusetts, and sells in Canada, the United States and internationally.

Its flagship product is HEXWAVE, a walk-through screening system that uses millimeter-wave radar imaging and artificial intelligence to find concealed metallic and non-metallic weapons without requiring people to stop or empty their pockets. For aviation, the company offers body scanners, footwear screening systems and an open-architecture platform for airport checkpoints, and it also performs contract development work.

Customers and target markets include schools, hospitals, airports, government buildings, transit systems, stadiums and entertainment venues.