Since 1936, Allegheny Performance Plastics has built its reputation around solving difficult polymer engineering problems in Pennsylvania. The company is known for high-temperature injection molding for demanding aerospace, automotive and space applications, with more than 100,000 parts in low Earth orbit. Its Meadville expansion now extends that precision work into medical manufacturing.
Westmoreland Plastics CompanyFor more than 50 years, Westmoreland Plastics Company has manufactured American-made thermoset molded components in Latrobe, Pennsylvania, serving applications from aerospace to medical devices. The company also designs and re-engineers molds, offers thermoplastic molding through selected manufacturing partners, and finishes close-tolerance parts with lapping and fine grinding. Its quality system is certified to ISO 9001:2015, and its thermoset injection-molding experience dates to 1976.LATROBE, PA
PexcoSince 1970, Atlanta-based Pexco has grown into a multi-plant manufacturer of specialty plastic components, combining custom extrusion with precision injection molding and machining. Its particular strength is working with demanding high-performance polymers, using in-house engineering, tooling and industrial CT scanning to make complex parts for applications ranging from medical devices and semiconductors to aerospace and traffic infrastructure. Pexco employs roughly 500 people across facilities in the United States and Mexico and operates under ISO 9001 quality systems.CINCINNATI, OH
Lehigh Valley PlasticsSince 1971, Bethlehem-based Lehigh Valley Plastics has turned engineered plastics into precision-machined parts and custom-fabricated assemblies for demanding manufacturing applications. Its 55,000-square-foot climate-controlled facility supports projects from prototype through production, with in-house material guidance and documented quality systems. The company also runs a polymer-recycling program and helps customers consider longer-life, recyclable designs.BETHLEHEM, PA
Precision Polymers Inc. (PPI)Founded in 1994 by industry veterans Robert Shepard and Walter Brown, Erie-based Precision Polymers Inc. makes custom plastic components through injection molding and builds the tooling used to produce them. PPI stands out for its start-to-finish operation, with an on-site tool room and support extending from design and molding through assembly, warehousing, and shipping. The company handles both small sample runs and high-volume production and has more than 30 years of mold-building experience.ERIE, PA