Elevate Your Manufacturing Career at Granite State Mfg

GSM, an ITAR Registered strategic small business partner for complex manufacturing, is a leading provider of integrated manufacturing solutions with over 85 years of experience.

Explore Exciting Career Opportunities

Ready to make a difference?

Join our team as a CNC or Manual Machinist, Welder, NDT Inspector or Engineer, and play a crucial role in crafting electromechanical systems vital for US Navy submarines and national security.

Let's build a stronger US Navy fleet and a more secure Nation together!

Our Areas of Expertise

MK 30

Defense & Homeland Security

Whether looking for design for manufacturing expertise for a new unmanned system or requiring manufacturing know-how to complete a build-to-design effort, GSM, an ITAR Registered company, will provide the solution.
Talon Robot


GSM has years of experience manufacturing in the robotics industry


The traditional Medical Industry has expanded into several parallel fields of endeavor


Industrial Equipment

GSM continues to supply innovative manufacturing solutions to a variety of Industries.



GSM has sound, empirical history in meeting the difficult challenges of the volatile Semiconductor Industry.

Your Skills, Our Precision: A Perfect Match

GSM-manufactured, life-critical systems are on every US submarine in the fleet

Supporting the US Navy's Mission

As a small, ITAR registered business, we partner with our customers to achieve extraordinary outcomes, improving product quality and functionality and reducing cost and cycle times.


Expertise in Complex Projects

We are experts at jobs that require multiple manufacturing processes, complex assemblies, and high tolerances.

Value-Added Services

More than just a contract manufacturer, we provide value engineering, design for manufacturability, program management, and other value-added services.

State-of-the-Art Engineering

Our Visual Manufacturing System and CAD-CAM capabilities provide best-in-class service.

Deep Industry Experience

For over 85 years, we have served some of the world’s top companies in defense, including submarine and shipbuilding, aerospace, and other industries.

Certified Quality

We are ISO9001 and AS9100 certified. We also have certifications for soldering, welding and painting and are ITAR registered.