Headquartered in Clarksburg, MD, Thales Defense & Security, Inc. (TDSI) serves the defense, federal, and commercial markets. TDSI consists of multiple business segments and three subsidiaries (Advanced Acoustic Concepts, Tampa Microwave, and Thales Trusted Cyber Technologies). Together, we provide innovative solutions for the ground tactical, airborne and avionics, naval/maritime, and security domains.

TDSI is a subsidiary of Thales (Euronext Paris: HO), a global high technology leader investing in digital and “deep tech” innovations – connectivity, big data, artificial intelligence, cybersecurity and quantum technology – to build a future we can all trust. Thales provides solutions, services and products that help its customers – businesses, organizations and states – in the defense, aeronautics, space, transportation, and digital identity and security markets to fulfill their critical missions.

TDSI operates in accordance with a Proxy Agreement approved by the US Government, established to mitigate concerns associated with Foreign Ownership, Control, or Influence (FOCI). To mitigate potential FOCI, Thales Defense & Security, Inc., in concert with the DoD’s Defense Counterintelligence and Security Agency (DCSA), has agreed to a comprehensive series of controls and requirements set forth by the Proxy Agreement (the highest-level FOCI mitigation instrument), subject to oversight by the Government Security Committee (GSC) to ensure independent TDSI management. As such, TDSI is approved to work on the full spectrum of US Government classified and unclassified programs without restriction, and is positioned to support strategic partnerships in the development of key technologies for the defense market. Thales’ Proxy Agreement has been active since 1986, initially as Racal Communications, Inc., making it one of the longest-standing proxy agreements in the US National Industrial Security Program (NISP).

Core Competencies

From world-class technologies, to state-of-the-art manufacturing facilities, staff and processes, our organization delivers the best quality and best value solutions on time and first time right.

TDSI has been a world-leading provider of mission-critical communication systems since 1964.  We offer a broad range of capabilities that expand our penetration within the defense and security arenas, including helmet-mounted displays and motion tracking technologies; SATCOM terminals; advanced sonar systems; data protection solutions; and sensor and missile system solutions. Furthermore, TDSI serves as a gateway for technology, leveraging Thales-wide solutions—such as combat management systems; naval, airborne, and ground ISR; and electronic warfare—to address US requirements.

Thales Defense & Security, Inc. and the Environment

Thales Defense & Security, Inc. is committed to a strong, proactive approach to environmental management and is a proud member of the Maryland Green Registry. Find out more. [PDF at mde.maryland.gov]