Liberty Defense Holdings, Ltd., through its subsidiary, Liberty Defense Technologies Inc., engages in the development and commercialization of an active 3D imaging technology system for the security industry in Canada and the United States. The company offers HEXWAVE systems that detects metallic and non-metallic concealed threats. It serves schools, hospitals, places of worship, hotels, shopping malls, airports, sports venues, government offices, rails/subways, theaters, passengers, open air events, and entertainment venues. The company is headquartered in Wilmington, Massachusetts.