Headquartered in Auburn Hills, CSP develops its own lightweight composite materials and molds them into components for the transportation industries. With more than 50 years in composites, the company combines in-house materials research, engineering and manufacturing across 14 facilities, employing about 4,500 people across North America. Its work includes lightweight vehicle structures and EV battery enclosures, alongside precision stamped metal parts that support its vertically integrated approach.
IATF 16949
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ISO 9001:2015
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The Gill CorporationWith roots reaching back to the early aerospace industry, The Gill Corporation has spent more than 75 years developing lightweight composite solutions. Headquartered in El Monte, the company employs more than 500 people at a 390,000-square-foot manufacturing and office campus, with vertically integrated operations extending across Maryland, France and the United Kingdom. Its long-standing specialty is honeycomb core technology, which it supplies to aerospace and transportation customers.EDGEWOOD, MD
CK Composites Co., LLCCK Composites is a U.S.-based, vertically integrated manufacturer of engineered composite components for mission-critical applications in electrical infrastructure, defense, transportation, and medical systems. With over seven decades of experience, the company operates an 80,000 sq ft facility in western Pennsylvania, combining cast epoxy, filament winding, densified laminate, and silicone overmolding technologies under one roof. Known for its disciplined manufacturing processes and respect-for-people culture, CK Composites partners with OEMs to develop reliable, long-lifecycle components.MOUNT PLEASANT, PA
Wolf CompositesFounded by Alex Wolford in a Columbus garage in 1999, Wolf Composites designs and manufactures custom carbon-fiber components, taking projects from one-off prototypes through production. Its 33,000-square-foot U.S. facility keeps design, engineering, machining and fabrication under one roof, with a 10-by-20-foot autoclave supporting repeatable composite parts. Wolf also developed the carbon target used in the NHTSA Strikeable Surrogate Vehicle for testing automatic emergency-braking systems.COLUMBUS, OH
Advanced Composites IncAdvanced Composites grew from two automotive compounders founded in Ohio and Tennessee in the mid-1980s, joining under Mitsui Chemicals in 2003. Nearly four decades later, the company develops thermoplastic materials for North American automakers and their suppliers, with its work recognized by a 2024 SPE Automotive Innovation Award for Rivian exterior cladding.SIDNEY, OH