
Citadel develops an automated and modular drone defense solution that uses proprietary machine learning algorithms to detect and engage unwanted drones. Citadel's team is made up of experts from the commercial and military drone industries with decades of experience in delivering exceptional solutions. Current customers include the United States Department of Defense, Defense Innovation Unit-Experimental (DIUX), Special Operations Communities, Army, Navy, Air Force, Department of Homeland Security, Coast Guard, Customs and Border Patrol, and classified Defense customers.

Citadel develops an automated and modular drone defense solution that uses proprietary machine learning algorithms to detect and engage unwanted drones. Citadel's team is made up of experts from the commercial and military drone industries with decades of experience in delivering exceptional solutions. Current customers include the United States Department of Defense, Defense Innovation Unit-Experimental (DIUX), Special Operations Communities, Army, Navy, Air Force, Department of Homeland Security, Coast Guard, Customs and Border Patrol, and classified Defense customers.
Founded: 2016
Headquarters: San Diego, California
Product: Autonomous, modular counter-drone detection and engagement systems
Key customers: U.S. defense and homeland security agencies (DoD, DIU/DIUX, Army, Navy, Air Force, DHS, Coast Guard, CBP, classified customers)
Acquisition: Acquired by BlueHalo (announced 2021)
Counter-drone defense for military, government, and commercial sites.
2016
Defense / Security
Series A announced Aug 8, 2017