Seyer Industries

Founded in 1957, Seyer Industries is a third generation, family-owned business specializing in higher-level assemblies for the aerospace and maritime industries.  We serve as a supplier to both commercial and defense OEMs, as well as a supplier directly to the US Department of Defense.


Seyer Industries is located in St. Peters, Missouri - just 15 minutes west of St. Louis Lambert International Airport. We operate out of four buildings totaling nearly 200,000 square feet. As an integrator of assembly-level work, we maintain a wide breadth of in-house capabilities including CNC machining, NADCAP-certified welding, painting, tube bending, electrical and mechanical assembly, kitting and NDT.  Shingijutsu Ltd. consultants introduced Seyer Industries to Lean Manufacturing in 1999 and it has taken root ever since.


Seyer Industries achieved third-party AS9100 certification in September 2006. As a testament to its best value approach to quality and delivery performance, we have garnered industry recognition, including Lockheed Martin's 2007 F-35 Small Business of the Year Award, Premier Supplier Certification from Bell Helicopter in 2010, and Gulfstream’s Superior Performance Award in 2015.