About Us

Westwire is a leading solutions provider in the Aerospace and Defence sectors, offering comprehensive design and manufacturing services for high-reliability harness assemblies and integrated sub-systems.

With 38+ years of specialized experience, Westwire has earned a reputation for technical excellence in producing complex, mission-critical wiring harnesses, sub-system assemblies, and box builds. Our 20,000 sq. ft. state-of-the-art facility in Swindon serves as a hub for advanced engineering and precision manufacturing, supporting our vision for continued innovation and growth.

Backed by the technological strength of our group company, SASMOS, Westwire integrates cutting-edge tools, lean manufacturing practices, and stringent quality processes to deliver products that meet the most demanding aerospace and defence standards. From initial concept and prototyping to full-scale production, we ensure performance, durability, and compliance at every stage.

Our commitment to quality, engineering integrity, and customer-centric delivery has made us a trusted partner to top OEMs across aviation, defence, space, naval and industrial sectors.