Founded in 1987, Integral Manufacturing is a locally owned contract manufacturer in Troy, Ohio, whose three nearby plants support customers making advanced products with critical components that often remain unseen. The company is known for helping customers transition production from captive facilities or other suppliers, with plastic injection molding serving a range of industrial needs.
BelletechBelletech is a contract manufacturer and Tier 1 partner that develops components and integrates them into customers’ production lines. It has supplied glass assembly products for more than 30 years and provides project consultation, including material evaluation, process design, and prototyping.BELLEFONTAINE, OH
GSH IndustriesSince 1986, GSH Industries has remained a third-generation family business in Ohio, known for keeping custom manufacturing work in-house. It serves OEM customers across North America with made-to-spec plastic components, supported by 15 injection molding machines and more than 150 years of combined industry experience.STRONGSVILLE, OH
Proto Plastics, IncWith more than 50 years in the industry, Proto Plastics is a Tipp City, Ohio, contract manufacturer known for working closely with customers on demanding plastic parts. Its engineers support projects from early design through production, with particular experience in close-tolerance work and long-term customer relationships. Proto Plastics’ ISO 9001:2015-certified quality system supports programs where consistent conformance matters.TIPP CITY, OH
ThogusFounded in 1950, family-owned Thogus is an Avon Lake, Ohio, manufacturer of custom plastic injection-molded parts and contract manufacturing programs. Its Manufacturing by Design approach carries projects from material selection and tooling through production optimization, supported by more than 35 molding machines, automated presses and 24/7 operations. Thogus has maintained ISO 9001 certification since 2001 and serves demanding programs with engineered materials, in-house tooling support and just-in-time delivery.AVON LAKE, OH