ThayerMahan Expands Undersea Surveillance Production with New Connecticut Facility
Event summary
- ThayerMahan began Linear Hydrophone Array manufacturing at a new 5,000 sq. ft. facility in Groton, Connecticut on June 16, 2026.
- The expansion reduces reliance on external suppliers, bringing specialized component production in-house.
- The company has assembled a dedicated manufacturing team of technicians, engineers, and production specialists.
- ThayerMahan positions itself as one of the few global players capable of large-scale, reliable array manufacturing.
The big picture
ThayerMahan's new manufacturing facility underscores the growing emphasis on maritime domain awareness and undersea security. As global demand for persistent sensing capabilities rises, domestic production capacity becomes a critical element of the U.S. industrial base for maritime defense. The move positions ThayerMahan to deliver undersea awareness solutions more quickly and at larger scale, while anchoring that capability firmly in Connecticut.
What we're watching
- Production Scaling
- How quickly ThayerMahan can ramp up production to meet accelerating global demand for passive acoustic intelligence systems.
- Supply Chain Resilience
- Whether in-house manufacturing will enhance ThayerMahan's ability to respond to evolving mission requirements and maintain intellectual property control.
- Talent Attraction
- The pace at which ThayerMahan can attract and retain top technical talent in southeastern Connecticut to support expanded production.