Insights

Naval manufacturing footprint Granite State Manufacturing has long-standing Navy experience with systems on every U.S. Navy submarine, indicating deep defense sector engagement and potential for multi-year, high-value contracts in naval and submarine programs.

Security and compliance AS9100D and ITAR registration, ISO 9001, and a rigorous quality and compliance framework position GSM as a trusted partner for defense, medical, and security industries seeking complex, regulated manufacturing capabilities.

Scalable capacity With 30+ machining centers, 5-axis capabilities, large-part welding up to 35,000 lbs, and dual facilities in Manchester and Nashua, GSM offers scalable production for both prototyping and full-rate production needs across multiple markets.

Growth traction Recent facility expansion and a recent financing round signaling capacity to hire and scale; combined with a growing headcount and new Nashua presence, suggests opportunities for tiered programs and extended contracts in defense and adjacent sectors.

Strategic opportunities Key customers include the U.S. Navy as the largest, with capabilities in CNC machining, welding, electro-mechanical assembly, and testing; cross-sell potential exists into medical, security, and industrial markets leveraging existing strict compliance and complex fabrication expertise.

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Granite State Manufacturing Tech Stack

Granite State Manufacturing uses 8 technology products and services including HubSpot Analytics, Apache Spark, GitHub, and more. Explore Granite State Manufacturing's tech stack below.

Granite State Manufacturing's Email Address Formats

Granite State Manufacturing uses at least 2 email formats:
Granite State Manufacturing Email FormatsExamplePercentage
First.Last@granitestatemfg.comJohn.Doe@granitestatemfg.com
95%
Last@granitestatemfg.comDoe@granitestatemfg.com
5%

Frequently Asked Questions

What is Granite State Manufacturing's phone number?

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You can contact Granite State Manufacturing's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Granite State Manufacturing's official website and social media links?

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Granite State Manufacturing's official website is granitestatemfg.com and has social profiles on LinkedIn.

How much revenue does Granite State Manufacturing generate?

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As of August 2026, Granite State Manufacturing's annual revenue is estimated to be $10M - $25M.

What is Granite State Manufacturing's SIC code and NAICS code?

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Granite State Manufacturing's SIC code is 3761 - Guided Missiles and Space Vehicles and NAICS code is 336414 - Guided Missile and Space Vehicle Manufacturing.

How many employees does Granite State Manufacturing have currently?

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As of August 2026, Granite State Manufacturing has approximately 125 employees across 2 continents, including North America and Asia. Key team members include Vice President: M. A., Site Manager: L. S. and Contracts Manager: S. H. Explore Granite State Manufacturing's employee directory with LeadIQ.

What industry does Granite State Manufacturing belong to?

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Granite State Manufacturing operates in the Defense and Space Manufacturing industry.

What technology does Granite State Manufacturing use?

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Granite State Manufacturing's tech stack includes HubSpot Analytics, Apache Spark, GitHub, Microsoft 365 Copilot, WordPress, Shopify, Microsoft Active Directory and Bitbucket.

What is Granite State Manufacturing's email format?

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Granite State Manufacturing's email format typically follows the pattern of First.Last@granitestatemfg.com. Find more Granite State Manufacturing email formats with LeadIQ.

When was Granite State Manufacturing founded?

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Granite State Manufacturing was founded in 1937.
Granite State Manufacturing logo

Granite State Manufacturing

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.

Section iconCompany Overview

Phone number
SIC Code
3761 - Guided Missiles and Space Vehicles
NAICS Code
336414 - Guided Missile and Space Vehicle Manufacturing
Founded
1937
Employees
51-200

Section iconFunding & Financials

  • $10M - $25M

    Granite State Manufacturing's revenue is estimated to be in the range of $10M - $25M

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