Granite State Manufacturing Employee Directory

Defense and Space ManufacturingNew Hampshire, United States51-200 Employees

Granite State Manufacturing is a small, contract manufacturing firm based in Manchester, New Hampshire, offering in-house capabilities spanning machining, welding, wiring, assembly, and testing, including certifications aligned with U.S. Navy standards. It supports projects from prototype development to production, focusing on delivering performance-critical solutions for its customers. The company serves defense and space manufacturing clients, including work tied to U.S. Navy programs and submarine equipment. Its approach combines program management with deep manufacturing expertise to execute complex programs from concept through delivery.

In 2021, GSM expanded its footprint with a new facility in Nashua, New Hampshire, reflecting growth in the region. Overall, it positions itself as a small, specialized supplier within the defense and space manufacturing landscape, focused on reliability and capability for government and defense customers.

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