Top 10 Outstanding Injection Molding Manufacturers


Injection molding manufacturers play a pivotal role in the manufacturing industry, providing efficient and precise solutions for the production of plastic components. With their expertise in mold design, tooling, and injection molding processes, these custom injection molding manufacturers deliver high-quality products to meet diverse customer demands. Leveraging advanced technologies and years of experience, Injection molding manufacturers ensure cost-effective production, quick turnaround times, and adherence to strict quality standards. Their contributions drive innovation across various sectors, making them essential partners for businesses seeking reliable and customizable plastic manufacturing solutions.

Next, there are ten outstanding injection moulding manufacturers.

Best Injection Molding Companies- plastic injection molded products-moulding components parts

List of Injection Molding Manufacturers

  • Advanced Special Tools Inc.
  • All-State Plastics
  • Sungplastic
  • All-Plastics LLC
  • RevPart
  • Adkev Inc.
  • Xcentric Mold & Engineering
  • Perzi
  • Alliance Precision Plastics, Inc.
  • Acorn-Gencon Plastics, Inc.

1.Advanced Special Tools Inc.

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Type of Business: Injection Molding and Precision Tooling.
Location: MI, USA.
History: Since 1998.
Key Products & Service: Engineering, Tool and Die, Injection Moulding.
Materials:ABS, PP, PE, PMMA, PA, PS, PC, PEEK, PVC, PET and more.

Company Background and Advantage:

Renowned as a premier supplier of precision-manufactured tooling and injection molded plastic components, they cater to diverse industries such as medical, energy, defense, semiconductor and automotive. With extensive experience spanning many years, they boast swift turnaround times, seamlessly transitioning from concept to the finished product within weeks. With significant capabilities, they maintain the values as one of the best injection molding manufacturers.

Their comprehensive services encompass precision tooling design, tool creation, and the production of finished products. With a robust presence in the automotive supply chain network for over three decades, AST has been a stalwart provider of automotive tooling & plastic injection solutions. They offer unwavering support to customers across all levels, from precision tool and die for metal stamping to injection mold products for tier 1 suppliers.

As a globally recognized automotive and semiconductor plastic component processing company, they position themselves as a trustworthy partner committed to meeting challenges and delivering on promises. This commitment is evident through their amalgamation of solid systems engineering capabilities, technology leadership, a values-based culture, and an unwavering dedication to excellence.

2.All-State Plastics

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Type of Business: Injection Molding Solution.
Location: CA, USA.
History: Since 1998.
Key Products & Service: Machining, Injection Molding, Mold Making.
Materials:ABS, PP, PE, PMMA, PA, PS, PC, PEEK, PVC, PET and more.

Company Background and Advantage:

All-State Plastics specializes in injection molding, mold making, and machining. With over 30 years of experience in the industry, they have established a strong reputation for their commitment to cutting-edge technologies, a diverse customer base, and their ability to adapt to emerging market demands. All-State Plastics has made significant investments in new molding machines and equipment to enhance operational efficiency. They have also developed their own automated equipment to streamline the molding process.

Throughout their history, All-State has made strategic decisions that have shaped the company’s trajectory. In 1992, they embarked on a pivotal journey by embracing innovative technologies. This decision proved crucial as it allowed them to achieve higher levels of efficiency and productivity. Additionally, they proactively invested in new molding machines, tool room machinery, and auxiliary equipment, staying ahead of customer demands. By harnessing the power of digital advancements, they ensured accurate cost estimation and efficient tracking for their customers. Furthermore, when necessary, All-State Plastics modified designs to optimize efficiency and better serve their clientele.

As a family-owned business with a strong tradition of delivering quality products and meeting production targets, All-State Plastics constantly adapts to meet the evolving needs of its customers and becomes one of outstanding injection molding manufacturers.


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Type of Business: Plastic Injection Molding Manufacturer.
Location: Dongguan, Guangdong province, China.
History: Over 20 years.
Key Products & Service: Plastic Mold Manufacturing, Plastic Injection Molding, Overmolding, Insert Molding, Rapid Prototyping.
Materials:ABS, PP, PE, PMMA, PA, PS, PC, PEEK, PVC, PET and more.

Company Background and Advantage:

Sungplastic, a Chinese manufacturing facility with over two decades of expertise, is dedicated to rapid prototyping, plastic injection molding production, and plastic mold fabrication. Our focus lies in customized plastic part molding across diverse sectors, including electronics, automotive, consumer products, and the medical industry. With a remarkable proficiency in producing products with precise tolerances and exceptionally high surface finishes, Sungplastic stands out in the industry.

As a premier plastic molding parts manufacturer, we specialize in working with engineering-grade plastics, thermoplastics, modified plastics, and composites to create tailor-made molded plastic components. To become one of the best injection molding companies, our commitment extends to meeting specific requirements such as chemical resistance, flexural strength, durometer, and yield strength.

Drawing on a wealth of professional injection molding knowledge and production experience, Sungplastic has proudly served numerous countries and established brands worldwide as a trusted plastic molding fabricator.

4.All-Plastics LLC

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Type of Business: Custom Plastic Molding.
Location: TX, USA.
History: Since 1964.
Key Products & Service: Custom Precision Injection Molding, Prototyping, Tool Building, Plastics Engineering, Product and Mold Design, 3-D Printing, In-Mold Labeling.
Materials:ABS, PP, PE, PMMA, PA, PS, PC, PEEK, PVC, PET and more.

Company Background and Advantage:

Leading the way in technology-driven production with an emphasis on accuracy and quality, All-Plastics provides skilled project management and engineering and custom plastic injection molding parts, custom injection molds and prototypes. They specialize in medical, industrial, pharmaceutical, packaging, and consumer markets, and they have two facilities in Texas. To expand and enhance their offerings, they have invested in staff training and acquired skills for additive manufacturing. Even for the tiny molded plastic parts that go into making medical devices, they are dedicated to quality control throughout the whole production process.

One of the great injection molding manufacturers, All-Plastics concentrates on markets that complement its more than 50 years of expertise and solid support. We work well with markets that need precise injection molding solutions, timely delivery, traceability, and reliable quality because of our scientific molding procedures.


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Type of Business: Injection Molding Services Provider.
Location: GA, USA.
Key Products & Service: 3D Printing, CNC Plastic Machining, Urethane Casting, Plastic Molding, Short Run Molding, Custom Silicone Molding, Rapid Prototyping.
Materials:ABS, PP, PE, PMMA, PA, PS, PC, PEEK, PVC, PET and more.

Company Background and Advantage:

RevPart has established a strong reputation for providing plastic injection molding services, specifically catering to small-scale production runs. Their advanced facilities, combined with meticulous manufacturing processes, empower them to manufacture parts of unparalleled quality, characterized by exceptional precision and consistency. In addition to injection molding services, RevPart extends its services to encompass rapid prototyping, enabling customers to test and refine their designs before initiating full-scale production.

With a focus on both speed and efficiency, RevPart can produce plastic injection molded parts in as little as one day, making them an ideal partner for time-sensitive projects. As one of strong and remarkable injection molding manufacturers, heir team of experienced engineers is also readily available to assist with design optimization for injection molding solution, ensuring that custom plastic parts are optimized for manufacturability and cost-effectiveness. Whether you require a few hundred parts or more, RevPart possesses the expertise and resources to deliver the results you seek.

6.Adkev Inc.

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Type of Business: Plastic Injection Molding Services.
Location: IN, USA.
History: Since 1987.
Key Products & Service: Injection Molding, Insert Molding, 2-Shot Molding, Tooling, Assembly, Value Add, Automation, and Engineering Support.
Materials:ABS, PP, PE, PMMA, PA, PS, PC, PEEK, PVC, PET and more.

Company Background and Advantage:

Adkev, situated in Goodland, Indiana, between Indianapolis and Chicago, is a leading injection molder and insert molder. With three state-of-the-art facilities covering a total of 340,000 square feet and a dedicated team of over 200 professionals, as one of the best injection molding manufacturers, they offer comprehensive manufacturing services.

As a fully integrated operation, they specialize in producing small to midsize parts through injection molding, insert molding, color matching, and various secondary operations, including assembly. Their commitment extends to providing “Total Customer Satisfaction,” striving to meet or exceed our customers’ requirements.

At Adkev, they take pride in our ability to tackle any quality challenge. Every team member shares the responsibility for maintaining high standards, contributing to the goal of delivering exceptional quality. As a TS 16949 and ISO 14001 certified custom plastic injection molding supplier, their stringent quality assurance program ensures that they can meet the most demanding standards and adapt to our customers’ specific needs.

Their proactive approach to quality is reflected in our employee involvement teams, enabling to address any quality issues swiftly. At Adkev, they maintain a “Zero Defect Mentality,” emphasizing the commitment to delivering flawless products.

7.Xcentric Mold & Engineering

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Type of Business: Plastic Injection Molded Products Manufacturer.
Location: MI, USA.
History: Over 25 years.
Key Products & Service: Plastic Injection Molding, Low Volume Production, Mold Making, Prototype Injection Molding, Rapid Prototyping, CNC Machining, 3D Printing.
Materials:ABS, PP, PE, PMMA, PA, PS, PC, PEEK, PVC, PET and more.

Company Background and Advantage:

Leveraging extensive experience, Xcentric Mold & Engineering has honed its expertise, offering a comprehensive range of services to meet diverse client needs. Renowned for their exceptional injection molding services, Xcentric delivers high-quality, durable, and reliable parts. Complementing this, their CNC machining capabilities enable the swift and precise production of parts, fostering greater design freedom, customization, and accelerated prototyping and production times.

In addition, Xcentric employs 3D printing to enhance efficiency, minimize waste, and reduce costs by utilizing only the necessary amount of material for each part. This approach facilitates on-demand manufacturing, proving particularly advantageous for small-scale injection molding or niche products. Committed to delivering superior service and products, among many bespoke injection molding manufacturers, Xcentric Mold & Engineering continuously explores new technologies and techniques to stay at the forefront of innovation.


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Type of Business: Custom Injection Moulding Products Manufacturer.
Location: Austria.
History: Since 1986.
Key Products & Service: Injection Moulding, Tool Making & Injection Mold Making.
Materials:ABS, PP, PE, PMMA, PA, PC, PVC and more.

Company Background and Advantage:

Over the course of five decades, Perzi has evolved from a small-scale craft business into a trusted industrial partner, renowned for its substantial innovation capabilities.

As one of premium custom injection molding manufacturers, Perzi’s customers enjoy the inherent advantages of a medium-sized family business, including reliability and flexibility, while benefiting from the high quality and performance standards associated with plastic injection molding industrial production.

With a focus on certified quality, Perzi excels in providing expert advice, meticulous material selection, precise plastic injection mold construction, and efficient plastic injection moulding products production processes. By optimizing workflow from the initial concept to the final product, Perzi not only delivers cost savings but also provides extraordinary solutions and flawless custom injection molds, fostering long-term customer relationships.

9.Alliance Precision Plastics, Inc.

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Type of Business: Bespoke Injection Molded Products Manufacturer.
Location: NY, USA.
History: Since 1954.
Key Products & Service: Plastic Part Production, Injection Mold Design and Build Plastic Part Production, Electromechanical Assembly.
Materials:ABS, PP, PE, PMMA, PA, PC, PVC and more.

Company Background and Advantage:

Alliance offers a wide range of injection molding equipment and extraordinary capacity to meet the customer’s needs. Precise molded parts, ranging from less than an ounce up to several pounds in weight, are produced in single- and multi-cavity molds from controlled processes without defect. The Alliance formula for producing high quality components includes the use of experienced cross-functional work teams, well-maintained equipment and tooling, and lean systems of operation. Alliance engineers will help select the appropriate thermoplastic formulation for each specific application. From highly engineered composites to commodity resins, Alliance runs hundreds of different plastic compounds with a myriad of properties. These materials can be tight-tolerance, strong, lightweight, heat-resistant, chemical resistant, rustproof, conductive, optical, colorful, and cost-effective.

Alliance Precision Plastics is your comprehensive solution for all your injection molding needs. From mold design and tooling to injection molding and full-service assembly, Alliance possesses the expertise, experience, and advanced technologies required to meet the most challenging job requirements with exceptional precision. With their in-house capabilities and superior knowledge, they deliver high-quality products and component parts quickly, accurately, and cost-effectively.
As one of the strongest injection molding manufacturers, their facilities span an impressive 90,000 square feet of industrial floor space, encompassing administrative offices, an engineering department, tooling design, a complete mold building and maintenance shop, warehousing, and flexible assembly areas.

10.Acorn-Gencon Plastics, Inc.

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Type of Business: Custom Plastic Injection Molding Service Provider.
Location: CA, USA.
History: Since 1972.
Key Products & Service: Plastic Injection Molding, Insert Molding, Overmolding, Mold Making, Tooling, Design & Engineering.
Materials:ABS, PP, PE, PMMA, PA, PS, PC, PEEK, PVC, PET and more.

Company Background and Advantage:

As one of the excellent injection molding manufacturers, Acorn-Gencon® Plastics delivers comprehensive solutions for injection-molded plastic products, guiding projects seamlessly from concept to completion. By combining engineered design services with extensive injection molding manufacturing capabilities, they ensure optimal production flow throughout the entire project lifecycle.

With a fleet of 27 injection molding presses ranging from 55 to 720 tons, Acorn-Gencon Plastics leverages process automation through robotics. Their capabilities include insert molding and co-molding/over-molding.

Established in 1972, Acorn-Gencon Plastics has evolved into a leading end-to-end injection-molded product solutions provider. Their approach involves experienced project managers, advanced design expertise, and a complete spectrum of manufacturing and quality assurance services. Bolstered by a history of excellence and fortified by strategic partnerships and acquisitions, they maintain a longstanding reputation for quality in the industry.


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