National Composites headquarters is located in Troy Michigan. This location houses our leadership, sales, HR, marketing, accounting, and purchasing departments. Our leadership team is committed to our customer’s success. It is our goal to ensure reliability in our company and people, and quality in our parts.

Molded Plastics Industries (MPI) opened its doors in 1974, as a manufacturer of fiberglass reinforced products. It has since added a second building producing vacuum and thermoformed products. The core markets MPI serves are electric and specialty vehicle, and medical, currently producing a variety of interior and exterior panels and components. MPI has a very experienced group dedicated to value‐added component installation and assembly.

Great Lakes Composite’s core customer base is the marine and recreation industry with nine OEM’s in this classification, producing helm stands, center consoles, seat bases, dock boxes, table tops, and more. This facility is also currently producing a wide array of products for the hospitality market including, walk-in bathtubs, restaurant booths, residential/office furniture, door skins, and more. This location offers multiple molding capabilities including Hand Lay-Up, Spray-Up, CCBM, LCM, RTM and LRTM.  Great Lakes Composite has a full assembly group dedicated to value‐add component installation and assembly. 

Excel Pattern and Tool specializes in a wide range of mold and tooling design and construction. Our capabilities include prototype and production gauges, fixtures and secondary tooling, as well as low volume production assembly and hand layup. Our extremely experienced staff has over 100 combined years of experience and are committed to making your vision become a reality.

Sunrise Fiberglass has been open since 1968. Their staff is made up of career fiberglass specialists with decades of experience. The team at Sunrise have the diverse skill sets and capabilities to execute our customers’ needs in the heavy equipment market and beyond. Sunrise is currently building parts for cranes, skid-steers, paving equipment, mining equipment, trains, underground infrastructure, and more. With multiple molding capabilities and an extremely advanced paint, bonding, and assembly department, Sunrise specializes in producing complex parts and large sub-assemblies.