DEFSEC Technologies Inc. engages in the development and commercialization of tactical systems for security, and personal defense markets. The company offers DEFSEC Lightning, a military digitization technology; Less-Lethal Munitions Systems, including PARA SHOT, a next-generation less-lethal system and ARWEN, a 40mm munition and new marking cartridge; It also provides BMA-Ready Solutions, including TAK and ATAK, tactical digital fires, battlefield laser detection system, and phantom tactical multi-function electromagnetic spectrum operations system. DEFSEC Technologies Inc. was formerly known as KWESST Micro Systems Inc. and changed its name to DEFSEC Technologies Inc. in June 2025. DEFSEC Technologies Inc. was founded in 2017 and is headquartered in Ottawa, Canada.