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Top 10 Plastic Injection Mold Companies in the U.S.

Posted by IndustrySelect on Friday, February 19, 2021

Man in blue shirt works on a plastic injection mold machine in a factory


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 62% of manufacturers plan to source more supplies domestically in 2021. 

The industrial marketplace IndustryNet 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 2020. Year-over-year category searches on the industrial marketplace IndustryNet were up 27% in 2020, while requests-for-quotes rose 102.1% and catalog downloads increased 21%. This trend reflects the growing number of manufacturers looking for domestic supplies, including plastic injection molding companies.

Are you looking for sales leads in the the plastic injecton molding industry or the manufacturing world at large? Access comprehensive profiles of 500,000 industrial businesses and one million executives with IndustrySelect. Try a free demo of IndustrySelect and reach new prospects in the industrial world! 

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

According to MNI, the century-old data compiler that powers IndustrySelect's industrial database subscription, 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:

CompanyCityState Number of Employees
Plastek Industries, Inc.EriePA850
LexaMar Corp.Boyne CityMI400
Jones Plastic & Engineering Co., LLCLouisvilleKY300
Hi-Tech Mold & Engineering, Inc.Rochester HillsMI200
MMI Engineered SolutionsSalineMI192
American Tool & Mold, Inc.ClearwaterFL180
Ironwood Plastics, Inc.IronwoodMI155
Seaway Plastics Engineering, LLCPort RicheyFL151
Decatur Mold, Tool & Engineering, Inc.North VernonIN150

About the Top 10 Plastic Injection Mold Manufacturers

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.

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.

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.

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.

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.

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.

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.

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.


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.

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.

Selling to the Plastic Injection Mold Industry

If you're a sales leader or marketer looking to do business with industrial companies like these, we can help.

IndustrySelect provides clients with touch-point data for potential leads, including direct executive contact information and other actionable data among 500,000 companies in the manufacturing and energy sector.

To learn more about how you can use IndustrySelect to generate reliable leads for your company, try out a free demo!

Looking for plastic injection mold manufacturers? Search for suppliers near you & request a quote on IndustryNet.

Editor's Note: A version of this post was originally published in June 3, 2020. It has been updated to include current trends and statistics. 



Want to keep up with the latest sales and marketing trends and exclusive industrial statistics from MNI? The free weekly IndustrySelect Insider email is the industry's top source for sales, marketing and industrial news you can't find anywhere else. Subscribe here.

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