Established in 2004, DK Manufacturing is a central Ohio manufacturer known for serving the automotive industry with custom injection-molded parts. Its two facilities employ more than 200 non-union personnel, with ISO 9001:2015 certification supporting its quality-management practices.
ISO 9001:2015
certification
PTC Enterprises, IncIn Northwest Ohio, PTC Enterprises makes custom injection-molded plastic parts for automotive and non-automotive customers, carrying projects from part design and material recommendations through tool production. The Edon manufacturer operates 18 injection molding presses in a 30,000-square-foot facility and backs production with in-house tool maintenance and quality controls. PTC brings more than 40 years of combined injection-molding experience and maintains an ISO 9001:2015 quality management system.EDON, 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
Superior Plastics, IncFounded in 1997, Superior Plastics is a 100% employee-owned manufacturer based in central Ohio, where its team has grown from a 5,000-square-foot leased site into a 104,000-square-foot production operation. The company is known for custom injection molding for customers in industries such as automotive and medical, with products shipped across several continents. Its quality system is ISO 9001:2015 certified.PLAIN CITY, OH
Design Molded PlasticsFor more than 30 years, Design Molded Plastics has built its identity around engineering-led custom plastic injection molding in Macedonia, Ohio. Its two-building campus gives the company room to take on complex projects for automotive, healthcare, and other manufacturers, with RJG-certified master molders and ISO 9001:2015-registered quality systems supporting the work.YOUNGSTOWN, OH