New York
San Francisco
+1-450-247-3522 Mon – Fri 07:00 -16:30 801 Kenney/Williams Road, Hemmingford , QC, J0L 1H0
+1 2223 4567 Mon - Fri 09:00 - 17:00 4th Avenue Kingston St. New York
+1 8887-3342 Mon - Fri 09:00 - 17:00 55th Floor Paulsson Bd. SF
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We Practice Continuous Improvement, SixSigma & LEAN Manufacturing Methodologies

Who We Are

Hess Aerospace & Defense was established in 1960 by John Hess, a European-trained precision machinist. A family-run business with a combined 150 years of experience, we manufacture high performance, built to print metal and composite parts and assemblies, proudly serving our clients in the aerospace and defense industries. Our installations are located 30 minutes south of Montreal, a major hub of the aerospace industry in Quebec. Minutes off Autoroute 15 south, we are strategically situated to serve the Quebec, Ontario and U.S. areas.

Why choose us?

Quality & Customer Service

Quality and customer service remain at the heart of our business. From prototype to production run, we focus on meeting our customers’ precise requirements. Our more than 55 years in business has allowed us to develop a solid and reliable supplier base. It also ensures that we can deliver machined components and complete assemblies on time and according to our clients’ specifications.

Cost Efficient Innovation

Our decades of success demonstrate our firm commitment to quality, innovation and continuous improvement.  Years of hands-on machining experience enables us to reduce production times and costs, facilitate product development and promote cost-efficient innovation.

Highly Experienced Team

Our dedicated team possesses the skills, experience and values to ensure our clients benefit from unmatched service and response to their requirements, all at a competitive cost.


  • Hess Aerospace always delivers on time. It’s something I can depend and rely on and, in this business, it’s rare and so appreciated. You guys make my job a lot easier. Thanks Jonathan!

    Robert P.
    Purchasing Mgr.
  • You guys are unbelievable, you actually figure out my need before it even becomes one. Incredible customer service and pricing is totally on par. Thank you for all you do.

    Johanne H.
    Operation Supervisor
  • So refreshing to deal with a company that delivers on what they say they will, on time and on budget. You guys are so reliable and always come through when I need you. I appreciate the extra attention every time.

    Mark L.
    Production Mgr.

At Hess Aerospace, We Value Quality, Reliability & Customer Service Above All