Injection Molding
Grand Traverse Plastics Corp (GTP)
HQ and MFG, 5780 Moore Rd, Williamsburg, MI 49690, United States
- Founded 1981
- IATF 16949, ISO 9001
About Grand Traverse Plastics Corp (GTP)
Grand Traverse Plastics Corp (GTP) has operated from Williamsburg, Michigan, in Grand Traverse County since its founding in 1981. The company is a U.S.-based manufacturer of custom plastic injection molded components. GTP specializes in functional injection molding, offering services from design and engineering through tooling fabrication and automated production. Its capabilities include new tooling projects, minor engineering adjustments, in-house automation fabrication, and material selection with the ability to develop alternative materials. The company serves global customers with precision-molded parts such as oil fill caps and tubes, though facility size, headcount, and annual volumes are not disclosed. The molder primarily supplies Tier 1 and OEM customers in the automotive and industrial sectors. Its IATF 16949 certification underpins a quality system aligned with automotive requirements, and the company references long-standing supplier relationships spanning more than two decades. GTP emphasizes technical expertise, a culture of innovation, cost competitiveness through continuous improvement, strong supply chain management, sustainability practices including waste minimization and recycling, and responsive communication with customer engineering and procurement teams.
Manufacturing capabilities
Core processes
Inspection & quality
Industries served
- Automotive
- Industrial
Company details
- Location
- Williamsburg, Michigan
- Founded
- 1981
- Certifications
- IATF 16949, ISO 9001
Frequently asked questions
Where is Grand Traverse Plastics Corp (GTP) located?
Grand Traverse Plastics Corp (GTP) is located at HQ and MFG, 5780 Moore Rd, Williamsburg, MI 49690, United States.
What does Grand Traverse Plastics Corp (GTP) do?
Grand Traverse Plastics Corp (GTP) is listed under Injection Molding, and its listed capabilities and products include Custom plastic injection molding, Tooling design and fabrication, In-house automation fabrication, Design and engineering support, Material selection and development and Supply chain management.
What industries does Grand Traverse Plastics Corp (GTP) serve?
Grand Traverse Plastics Corp (GTP) lists Automotive and Industrial among the industries it serves.
What certifications does Grand Traverse Plastics Corp (GTP) have?
Certifications on file for Grand Traverse Plastics Corp (GTP): IATF 16949 and ISO 9001.
When was Grand Traverse Plastics Corp (GTP) founded?
Grand Traverse Plastics Corp (GTP) was founded in 1981.
How do I request a quote from Grand Traverse Plastics Corp (GTP)?
Use the Request a quote button on this page to send Grand Traverse Plastics Corp (GTP) your requirements through FirmsLedger, or call (231) 267-5221 and visit gtpplastics.com.
What companies are similar to Grand Traverse Plastics Corp (GTP)?
Other Injection Molding companies in Michigan listed on FirmsLedger include Team 1 Plastics, Saginaw Bay Plastics Inc and Ironwood Plastics Inc..