Top 10 Largest Plastic Injection Molding Companies In The US
Biggest and Most Famous Plastic Injection Molding Companies In The US
Table of Contents

What is plastic injection molding process?

Injection molding is a method of producing molded products by injecting molten plastic materials into a mold and then cooling and solidifying them. The method is suitable for mass production of products with complex shapes and plays an important role in the field of plastic processing.

For a variety of reasons, plastic injection molding is the most widely used component manufacturing process, including:

Consistency: If the process parameters are tightly controlled, the injection molding process can produce thousands of components at a consistent quality in a short period of time.

Cost-effectiveness: once the mold (the most expensive component) has been built, the cost of production per component is relatively low, especially if produced in large quantities.

Quality: Whether manufacturers require strong, tensile, or highly detailed components, the injection molding process can consistently produce them at a high level of quality.

READ MORE: Top 10 Biggest Industries In The United States Today

Manufacturers have the ability to customize the mold design and thermoplastic used for each component. This means that the injection molding process can create a wide range of components, including complex and highly detailed parts.

Injection molding machines can produce thousands of items per hour once the process has been set up and tested. The use of electric injection molding machines also contributes to the process being relatively energy efficient.

With 555 US-based companies, the plastic injection mold industry is a relatively small and specialized sector. The Midwest is home to half of these manufacturers.

The practices of this sector closely reflect that of other manufacturers:

• 8% of plastic mold manufacturers import raw materials, which is slightly lower than the 11% average across all manufacturers.

• 76% of plastic mold makers focus on domestic distribution. This is slightly higher than the 70% of all manufacturers that sell their products on the domestic market.

Top 10 Biggest and Most Famous Plastic Injection Molding Companies In The US

1. Plastek Industries

Location: Inc. Erie, PA

Revenue: 369.39 million

No of employees: 1,200

Plastek Industries, Inc. has offices in four different countries. With 850 employees, its headquarters in Erie, Pennsylvania, is the largest plastic mold manufacturing facility in the United States. They make packaging for the beauty and cosmetics industries, as well as food and beverage products, stock packaging options, and pharmaceutical packaging.

2. Jones Plastic & Engineering Co., LLC

Location: Louisville, KY

Revenue: 313.35 million USD

No of employees: 2,400

This Louisville, Kentucky-based manufacturer employs 2400 people, with 1310 of them based in the United States. Injection molding is one of the services offered by the company. Product development, tooling, value-added operations, and Paint & Hydrographics for industries such as automotive, appliances, outdoor sports, household products, and power sport vehicles.

3. American Tool & Mold, Inc.

Location: Clearwater, FL

Revenue: 29.21 million

No of employees: 180

American Tool & Mold, Inc. creates plastic molds that are used by other companies. This Clearwater, Florida-based company employs 180 people and can create customized molds for a variety of applications, such as multi-cavity molds and precision molds.

4. LexaMar Corp.

Location: Boyne City, MI

Revenue: 106.91 million

No of employees: 325

Boyne City, Michigan is the location of the manufacturer. It employs 325 people in the United States and provides molding services to the automotive industry. Its clientele includes some of the world's largest automakers.

5. Hi-Tech Mold & Engineering, Inc.

Location: Rochester Hills, MI

Revenue: 50.44 million

No of employees: 175

Hi-Tech Mold & Engineering, Inc. has 175 employees and is based in Rochester Hills, Michigan. Molding services such as machining, benching, polishing, tool assembly, additive manufacturing & 3D printing, and EDM are available. It focuses on the automotive, defense, aerospace, electric vehicles, medical devices, appliances, and recreational vehicle industries.

6. MMI Engineered Solutions

Location: Saline, MI

Revenue: 28.66 million

No of employees: 86

MMI Engineered Solutions, located in Saline, Michigan, employs 86 people and produces injection molding components; it also offers design, tooling, and material handling services.

7. Ironwood Plastics, Inc.

Location: Ironwood, MI

Revenue: 28.21 million

No of employees: 210

This Ironwood, Michigan-based company creates molds for products with specific specifications. Ironwood Plastics, Inc. and its 155 employees create specialized molds using advanced techniques such as pressure monitoring, laser scanning, and mold flow analysis.

8. Decatur Mold, Tool & Engineering, Inc.

Location: North Vernon, IN

Revenue: 28.00 million

No of employees: 10

Located in North Vernon, Indiana, the company has 110 employees and provides services like prototype tooling and tool design. It mainly produces components for the automotive, defense, and aerospace industries.

9. Alwin Manufacturing Co Inc

Location: Green Bay​, WI

Revenue: 19.25 million

No of employees: 75

To create customized solutions, Alwin provides design and product development services. This Clintonville, Wisconsin-based company employs 150 people and manufactures commercial towel and napkin dispensers.

10. Seaway Plastics Engineering, LLC

Location: Port Richey, FL

Revenue: 18.97 million

No of employees: 122

Seaway Plastics Engineering, LLC is a low-volume production run company. It employs 122 people and is based in Port Richey, Florida. The company can complete low-volume production runs on time, within budget, and according to specifications. Defense, packaging, aerospace, transportation, food service, industrial electronics, and consumer products are among the industries they serve.

Conclusion

Given the high cost of mold design and fabrication, understanding the plastic injection molding manufacturing process and selecting the right supplier is critical. This article highlights the top 10 most famous and biggest plastic injection molding companies in the US. We hope it is helpful to you.

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