Create meaningful manufacturing solutions that help keep our country safe and competitive.

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Featured Positions

Weld Project Engineer

Directs, coordinates, and exercises functional authority for planning, organization, control, integration, and completion of weld engineering projects within area of assigned responsibility by performing the following duties personally or through subordinate team members.
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Manufacturing Process Engineer

Oversee the development and implementation of manufacturing processes to maintain proper product functionality as well as cost efficiency. Ensures the engineering team and other manufacturing departments work together cohesively.
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Quality Control Engineer

Provides support for quality projects. Supports and completes activities concerned with development, application, and maintenance of quality standards, requirements, documents, and instructions for industrial processes, materials, and products.
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Our Culture

GSM: Small Business, Big Impact

Granite State Manufacturing (GSM) is family owned and locally based. And while we don’t have thousands of employees like the “big guys,” there’s nothing small about our work. For more than 80 years, we have served some of the world’s top companies in defense, aerospace, homeland security, and other vital industries.

Tools: Beyond State-of-the-Art

Here, you’ll be challenged to find solutions to complex manufacturing problems, and you’ll do it with the latest and greatest machines and technology. In fact, you’ll have the chance to hone your skills with state-of-the-art equipment you won’t find in your father’s machine shop.

Advancement: Not Just a Buzzword

We believe in rewarding achievement because we do well when you do well. Promotions are based on performance, not seniority, so when you excel, you’re rewarded—it’s that simple. At GSM, advancement is more than a possibility; it’s a reality.

Team Testimonials

It is an honor and privilege to be a part of the GSM family. The uncompromising dedication to provide quality products and mission-critical systems, is a testament to the hard work and dedication to all who have made GSM what it is today. I look forward to being a part of the team to take our incredible organization to the next level!

— Ken M.

Working for a company that truly values their employees as individuals has always been a career goal of mine. At GSM, I am a part of a team that is inspiring, uplifting, and forward-thinking. This experience has undoubtedly advanced my career goals and enabled me to grow professionally as well as personally!

Taylor O.  


GSM offers a competitive wage and benefits package because we believe investing in our employees results in the superior performance needed to produce quality products. Our employee longevity demonstrates that our commitment is genuine: Some employees have been with us for 50 years!

The following are among the benefits available to our employees (based on eligibility requirements):

  • 401(k) Retirement Savings Plan with Company Match
  • Paid Vacation and Personal Time
  • Paid Holidays
  • Medical, Dental, and Vision Insurance with Low Employee Contributions
  • Education Reimbursement and In-House Training
  • Wellness Program with Paid Incentives
  • Company-Paid Short- and Long-Term Disability Insurance
  • Company-Paid Life and Accidental Death & Dismemberment Insurance

124 Joliette Street, Manchester, NH 03102   |   Tel: 603-668-1900

© Copyright 2022. Granite State Manufacturing

I'm really excited to join GSM full-time. All my supervisors have been incredibly understanding and supportive as I've worked while going to school at the same time. GSM has been instrumental in not only giving me an opportunity to gain valuable engineering skills and experience as an intern, but also offered financial support through the GSM Tuition Assistance Program.

 Nate R.