Frank Ralphs specializes in custom composite panels and complex assemblies for transportation and industrial applications, with capabilities that include curved and molded panels machined up to 8 by 20 feet. Its work ranges from lightweight air ducts supplied to the railcar industry to simulator panels, while its design team develops assemblies around customers’ specifications. The company has maintained ISO 9001 certification since 1997 and currently holds ISO 9001:2015 certification.
ISO 9001:2015
ComposiflexComposiflex designs, develops, and manufactures advanced composite products for a global marketplace, specializing in aerospace, defense, medical, and industrial applications. The company is certified to AS9100 Revision D with ISO9001:2015 and Nadcap Accreditations for composites.ERIE, PA
RL Industries, IncEstablished in the 1960s as a custom fabricator, Fairfield-based RL Industries now designs and builds engineered FRP and composite equipment for demanding industrial applications worldwide. Its 77,000-square-foot southwest Ohio facility is built for large-scale work, including complex pressure vessels and composite structures. RL has maintained ASME certification since 1994 for RTP-1 equipment and since 1997 for Section X pressure vessels, while its engineers contribute to six ASME pressure-technology committees.FAIRFIELD, OH
Advanced Composite Products, IncFounded in 1983 by racer Kerry Hitt, Harrisburg’s Advanced Composite Products fabricates custom composite parts entirely in-house, from design and prototyping through production. Its 35,000-square-foot facility serves demanding projects ranging from race-car bodywork to aircraft and government components, including parts for Johns Hopkins Applied Physics Laboratory’s Dragonfly drone destined for Titan. ACP’s racing roots remain visible in its wind-tunnel-tested race bodies and parts, shaped by Hitt’s experience as a driver and composite manufacturer.HARRISBURG, PA
McCLARIN CompositesFounded in 1953, McCLARIN Composites manufactures engineered composite parts for mobility and the built environment, including large, complex components made through thermoset and thermoplastic platforms. With three North American manufacturing facilities, the company combines composite engineering with machine-driven and closed-mold production, and its engineering team is certified through the American Composites Manufacturers Association’s CCT program. McCLARIN holds ISO 9001:2015 certification across its Oklahoma City, Wapato and Hanover locations and is developing lower-carbon composite manufacturing pathways.HANOVER, PA