Top Plastic Manufacturing Companies in Ohio, USA

Ohio stands out as a leading hub for the plastics industry in the United States. With a strategic location, robust industrial infrastructure, and access to skilled labor, top plastic manufacturing companies in Ohio are powering innovations across automotive, medical, packaging, electronics, and consumer goods industries.

If you're looking to source custom plastic parts or partner with reliable plastic manufacturers in Ohio, this list will help you connect with top-performing firms offering injection molding, extrusion, thermoforming, and other specialized services.

Why Ohio is a Key Destination for Plastic Manufacturing

Ohio's prominence in the U.S. plastics industry is due to several factors:

• Central location for easy logistics and distribution.
• Home to over 1,000 plastics and rubber manufacturing companies.
• Access to major markets and ports within a day’s drive.
• Presence of R&D facilities, trade organizations, and skilled workforce.

Whether you are a product designer, OEM, or procurement manager, partnering with a plastic manufacturer in Ohio ensures quality, timely delivery, and innovation at a competitive price.

Top 10 Plastic Manufacturing Companies in Ohio, USA

1. Röchling Glastic Composites

Location: Cleveland, Ohio
A part of the global Röchling Group, Röchling Glastic Composites specializes in high-performance thermoset and thermoplastic materials. Known for their engineering plastics used in electrical, medical, and industrial applications, the company is a pioneer in glass-reinforced thermoset plastic solutions.

Services:

• Thermoset molding
• Precision CNC machining
• Custom composite parts

2. Pioneer Plastics

Location: Dalton, Ohio
Pioneer Plastics is an ISO-certified custom injection molding company with over 30 years of experience. Serving diverse sectors such as electronics, automotive, and consumer products, Pioneer is a trusted name for custom plastic injection molding in Ohio.

Core Competencies:

• Injection molding
• Product development
• Tool design and building

3. Reiloy USA

Location: Akron, Ohio
While best known for wear-resistant components for the plastics industry, Reiloy USA also offers plastic extrusion and custom-engineered solutions for plastic processors. Their expertise makes them a reliable partner for extrusion tooling and part design optimization.

Specialties:

• Extrusion technology
• Bimetallic barrels and screws
• Custom plastic processing solutions

4. Plastic Parts, Inc.

Location: Columbus, Ohio
Plastic Parts, Inc. is a leading custom plastic parts manufacturer in Ohio, serving industries like aerospace, energy, medical, and agriculture. With a strong focus on quality and fast turnarounds, they provide complete solutions from design to delivery.

Capabilities:

• Injection molding
• Insert molding
• Prototyping
• Mold repair and maintenance

5. JACO Products

Location: Middlefield, Ohio

Founded in 1948, JACO Products is one of Ohio’s oldest plastic machining companies, offering custom molded and fabricated plastic components for OEMs across the U.S. They’re known for high precision and custom thermoplastics processing.

Expertise:

• CNC plastic machining
• Plastic injection molding
• Plastic fabrication and prototyping

6. Tech-Way Industries

Location: Franklin, Ohio
Tech-Way Industries delivers precision injection molding services in Ohio, with a focus on tight-tolerance applications in aerospace, medical, and industrial automation. They support customers with in-house mold making and post-molding operations.

Key Services:

• Overmolding and insert molding
• Ultrasonic welding
• Assembly and kitting

7. FiberTech Inc.

Location: Aurora, Ohio

FiberTech Inc. specializes in fiberglass reinforced plastic (FRP) fabrication, offering high-strength, corrosion-resistant solutions for industrial and commercial applications. Their custom tanks, ducts, and covers are used in the chemical, water, and wastewater sectors.

Service Offerings:

• FRP custom fabrication
• Design engineering
• On-site installation

8. Proto Plastics

Location: Tipp City, Ohio
With a reputation for precision, Proto Plastics is a trusted partner for custom plastic enclosures and complex parts. They serve industries that demand low-to-medium volume production, including defense, electronics, and transportation.

Highlights:

• Design for manufacturability (DFM)
• Low-volume production
• Custom molded enclosures

9. C&J Industries

Location: Nearby Meadville, PA (serving Ohio clients extensively)

Though located just outside Ohio, C&J Industries serves many Ohio-based OEMs. They offer medical-grade plastic parts, FDA-compliant injection molding, and tool design for regulated industries.

Notable Services:

• Medical and pharma molding
• Cleanroom injection molding
• FDA and ISO certification compliance

10. Wilmington Machinery

Location: Wilmington, Ohio

Though primarily known for building blow molding machines, Wilmington Machinery also offers custom molding services. They are pioneers in structural foam molding and large-part molding, serving automotive and packaging markets.

Key Capabilities:

• Structural foam molding
• Blow molding systems
• Custom-built molding machines

Choosing the Right Plastic Manufacturer in Ohio

When sourcing from plastic manufacturing companies in Ohio, here are key factors to consider:

• Capabilities: Ensure the company offers the specific service you need—be it injection molding, thermoforming, or FRP fabrication.
• Certifications: ISO, FDA, or industry-specific certifications are important for regulated industries.
• Experience: Companies with industry experience are more likely to deliver quality and consistency.
• Proximity: Choose a manufacturer close to your logistics hub for reduced shipping costs and faster turnaround.

FindingMFG: Your Partner in Plastic Manufacturing Sourcing

At FindingMFG, we simplify the way global buyers connect with verified plastic manufacturers in Ohio and across the USA. Our platform gives you instant access to:

• Verified manufacturers with capabilities matched to your needs
• Digital RFQ submission and instant quotes
• Transparent supplier ratings and quality checks
• Secure communication and real-time project tracking

Whether you need custom plastic injection molding or extruded plastic components, FindingMFG makes it easier to find the right partner in Ohio.

Final Thoughts

Ohio is home to some of the most reputable and innovative plastic manufacturing companies in the United States. From complex medical components to automotive-grade plastic parts, the state offers end-to-end plastic production capabilities.

By leveraging platforms like FindingMFG, you can discover and partner with the right manufacturer based on your quality, cost, and lead time requirements.

Ready to source from the top plastic manufacturers in Ohio?
Visit FindingMFG.com and submit your project requirements to get started today