Top Plastic Injection Molding Companies in U.S.

As U.S. manufacturers continue to contend with disruptions to the global supply chain, manufacturers are looking to source more supplies at home. One study found that 60% of manufacturers plan to source more supplies domestically in 2022~2023.

The global industrial marketplace continues to see heightened domestic sourcing activity, including greater demand for plastic injection molding services, which reported thousands of searches from industrial buyers interested in plastic injection molding in 2022. Year-over-year category searches on the google were up 30% in 2022, while requests-for-quotes rose 112.71% and catalog downloads increased 31.57%. This trend reflects the growing number of manufacturers looking for domestic supplies, including plastic injection molding companies.

Meanwhile, the global market for injection molded plastics is expected to reach a value of $473.4 billion by the year 2027. Currently, the industry is valued at $339.3 billion.

Today we’re taking a quick look at some additional facts on the plastic injection molding industry and exploring the top ten plastic injection companies in the United States.

Plastic Injection Mold Sector Overview

The plastic injection mold industry is a fairly small and specialized sector with 555 US-based companies. Half of these manufacturers are located in the Midwest.

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.

This emphasis on the domestic market and local suppliers could indicate a potential for expansion on new markets for plastic mold manufacturers.

Top 10 Plastic Injection Mold Companies

Here are the ten largest manufacturers in this sector, based on data collected by MNI(Ranking in no particular order):

Company City State Number of Employees
Alwin Clintonville Wisconsin 150
American Tool & Mold, Inc. Clearwater Florida 180
Decatur Mold, Tool & Engineering, Inc. North Vernon Indiana 150
Hi-Tech Mold & Engineering, Inc. Rochester Hills Michigan 200
Ironwood Plastics, Inc. Ironwood Michigan 155
Jones Plastic & Engineering Co., LLC Louisville Kentucky 300
LexaMar Corp. Boyne City Michigan 400
MMI Engineered Solutions Saline Michigan 192
Plastek Industries, Inc. Erie Pennsylvania 850
Seaway Plastics Engineering, LLC Port Richey Florida 151

About the Top 10 Plastic Injection Mold Manufacturers


Alwin offers design and product development services to create customized solutions. This Clintonville, Wisconsin, manufacturer has 150 employees and also produces commercial towel and napkin dispensers.

02、American Tool & Mold, Inc.

American Tool & Mold, Inc. produces plastic molds used by other manufacturers. This Clearwater, Florida, company has 180 employees and can create customized molds for a wide range of applications, including multi-cavity molds and precision molds.

03、Decatur Mold, Tool & Engineering, Inc.

Located in North Vernon, Indiana, Decatur Mold, Tool & Engineering, Inc. employs 150 people to produce military aircraft parts, car seats and automotive components.

This manufacturer also offers prototyping and tool design services.

04、Hi-Tech Mold & Engineering, Inc.

Hi-Tech Mold & Engineering, Inc. is located in Rochester Hills, Michigan. Its 200 employees work on components for vehicles, appliances, medical devices, and solutions for the aerospace and defense industries.

05、Ironwood Plastics, Inc.

This Ironwood, Michigan, manufacturer creates molds for products with precise requirements. Ironwood Plastics, Inc. and its 155 employees use advanced techniques like pressure monitoring, laser scanning and mold flow analysis to create specialized molds.

06、Jones Plastic & Engineering Co., LLC

This Louisville, Kentucky, manufacturer has 300 employees. Jones Plastic & Engineering Co., LLC uses injection molding techniques to produce automotive parts, packaging, electronic components, and products for the medical industry.

07、LexaMar Corp.

Located in Boyne City, Michigan, LexaMar Corp. employs 400 people. This manufacturer uses rubber and plastic to produce exterior parts for the automotive industry.

08、MMI Engineered Solutions

Located in Saline, Michigan, MMI Engineered Solutions employs 192 people. This manufacturer has an in-house design team and uses injection and blow mold techniques to produce powertrain, exterior and interior parts for the automotive industry.

09、Plastek Industries, Inc.

Plastek Industries, Inc. has locations in four countries. Its Erie, Pennsylvania, headquarters is the largest plastic mold manufacturing facility in the US with 850 employees. They manufacture products like packaging for the beauty and cosmetics industry, food and beverage products, stock packaging options, and pharmaceutical packaging.

10、Seaway Plastics Engineering, LLC

Seaway Plastics Engineering, LLC has 151 employees and is located in Port Richey, Florida. This company specializes in engineering and low-volume runs. It creates products for the packaging, defense, medical, transportation and electronics sectors, among others.

Looking for plastic injection mold manufacturers? request a quote on v1plastic.


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