Headquartered in Clarksburg, MD, Thales Defense & Security, Inc. (TDSI) is a global company serving the defense, federal, and commercial markets with innovative solutions for the ground tactical, airborne and avionics, naval/maritime, and security domains.

Thales Defense & Security, Inc. is a subsidiary of Thales (Euronext Paris: HO), a global technology leader shaping the world of tomorrow today. The Group provides solutions, services and products to customers in the aeronautics, space, transport, digital identity and security, and defense markets. With 80,000 employees in 68 countries, Thales generated sales of €18.4 billion in 2019. Thales is investing in particular in digital innovations — connectivity, Big Data, artificial intelligence and cybersecurity – technologies that support businesses, organizations and governments in their decisive moments.

Thales Defense & Security, Inc. operates as a proxy-regulated company, Free of Foreign Ownership, Control, or Influence (FOCI). In order to mitigate potential FOCI, Thales, in concert with Defense Security Service (DSS) agreed to a comprehensive series of stipulations and requirements known as a Proxy Agreement (the strongest mechanism for FOCI mitigation).    As such, TDSI is approved to work on the full spectrum of US Government classified and unclassified projects, and is positioned to support strategic partnerships in the development of key technologies for the defense market. Thales’ Proxy Agreement started under Racal Communications, Inc. in 1986, making it one of the longest standing proxy agreements, established over 30 years ago.

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.

Thales Defense & Security, Inc. has been a world-leading provider of mission-critical communication systems since 1964.  Our business has since grown to include a broad range of new capabilities that expand our penetration within the defense and security arenas, including helmet-mounted displays and motion tracking technologies; SATCOM terminals; advanced sonar systems; training and simulation systems; data protection solutions; and sensor and missile system solutions. Furthermore, Thales Defense & Security, Inc. 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.