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
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
Com-Corp IndustriesSince 1986, Cleveland’s Com-Corp Industries has made precision-formed metal products and assemblies for automotive and other demanding applications, taking projects from concept engineering through assembly and finishing under one roof. Its experience spans complex parts for major tier-one automotive suppliers, including decorative automotive stampings and a proprietary high-temperature painting process developed more than 20 years ago. Com-Corp became an employee-owned ESOP in 2018 and is ISO 9001:2015 certified.CLEVELAND, OH