Utah's plastic manufacturing industry is diverse and growing, playing a key role in a range of sectors from medical and electronics to aerospace. These companies mould, shape, form, or laminate plastic materials into products that are used globally. They produce a wide variety of goods, from protective cases and enclosures to advanced piping systems. Many Utah plastic manufacturers employ cutting-edge techniques such as over-molding and insert molding, boosting accuracy and cost-efficiency. The industry reflects a strong commitment to innovation, quality control, and sustainability, grappling with environmental challenges and looking for eco-friendly solutions.


Top 19 plastic manufacturing companies in Utah

1. ZERO Manufacturing (Star Cases, LLC)

  • Website: zerocases.com
  • Headquarters: North Salt Lake, Utah, United States
  • Founded: 1952
  • Headcount: 51-200
  • LinkedIn

ZERO Manufacturing is a global manufacturer and supplier of plastic and metal protective cases, enclosures, and parts.


2. Aquatherm North America

Aquatherm is a company that offers polypropylene piping systems for various applications. Their products include PP-R and PP-RCT pipes and fittings, blue and green pipes, and other related products. Their piping systems are corrosion-free and have excellent chemical resistance, making them suitable for heating and cooling, potable water, compressed air, fire protection, and industrial applications. Aquatherm's innovative heat fusion technology ensures reliable installation and long-lasting performance. They are known for their commitment to quality control and offer warranties on their products.


3. SMI Molding, Inc.

  • Website: smimolding.com
  • Headquarters: Clearfield, Utah, United States
  • Founded: 1981
  • Headcount: 51-200
  • Latest funding type: Acquired
  • LinkedIn

SMI Molding is a premiere plastic injection molder that offers over-molding and insert molding services. They use robotic equipped presses to improve accuracy and reduce labor costs. With decades of manufacturing and engineering experience, SMI is committed to creating repeatable products that perform to specifications.


4. EnviroTech Custom Injection Molders

  • Website: empslc.com
  • Headquarters: Salt Lake City, Utah, United States
  • Founded: 1963
  • Headcount: 51-200
  • LinkedIn

EnviroTech Molded Products, Inc. is a plastic injection molding manufacturer with over 50 years of experience. They specialize in custom injection molding and offer affordable solutions to clients in various industries. Their expertise in design and engineering ensures high-quality products that meet customer needs. With a commitment to sustainability, health, and safety, EnviroTech is a trusted partner for all plastic molding requirements.


5. Plastics Resources, Inc

Pri-Plastics is a plastic manufacturing company that specializes in providing ESD static control packaging solutions, including tubes, trays, end stopper plugs & pins. They also offer extrusion and thermoforming services, as well as custom protective strip solutions. With over 35 years of experience, they are committed to delivering exceptional quality products and providing top-notch customer service.


6. Design-Tek Tool & Plastics Inc.

Design-Tek Tool and Plastics Inc. is a custom plastic manufacturing company that offers services including plastic product design, blow molding, and injection molding.


7. Freeform Polymers

Freeform Polymers is a plastic production company that specializes in injection molding, offering design services, 3D printing, prototyping, assembly, and fulfillment of products for customers.


8. Aileron Mold

Aileron specializes in plastic injection molds, blow molds, and precision machined parts through CNC machining, wire and plunge EDMing, surface and cylindrical grinding, and heat treatment in their US and Moldova-based machine shops since 1994. They offer cost-effective solutions with full support for US customers.


9. Utah Plastics Group

Utah Plastics Group is a company that specializes in the production of high-quality plastic products for various industries. Their products are made from the finest materials and are designed to deliver excellent results.


10. Aspen Earth CNC Injection Molding and Design

Aspenearth.com provides CNC injection molding and design services, sprinkler catalog, and custom packaging solutions. They specialize in the manufacturing of plastic components and parts.


11. Lakeshore Plastics

Lakeshore Plastics is a turnkey injection molding company located in Orem, UT. Their expert team collaborates with clients to provide in-house engineering, mold fabrication, plastic injection, and production planning.


12. Silicone Plastics, Inc.

Silicone Plastics is a leading custom plastic manufacturer that partners with employees, customers, and the community to achieve their dreams. With innovative processes, integrity, and pride in their work, they manufacture high-quality plastic products.


13. Plastic Fabricating

Plastic Fabricating is a custom manufacturer specializing in a diverse range of custom plastic fabrication. With over 50 years of experience, we are committed to providing quality, accurate, and timely personal customer service. We take pride in our expertise in plastics and fabricating, delivering the best possible finished products to our customers.


14. D&a;D Plastics

  • Website: d-dplastics.com
  • Headquarters: Orem, Utah, United States
  • Headcount: 1-10

D & D Plastics is a design and development company that assists clients in taking a concept or design and developing it into a viable product. With over 30 years of experience in vacuum forming and fabrication, we are pushing the the boundaries of what we can do with plastic today. With our skill and know-how, we can work through a concept and know what needs to be modified to give you the very best and most cost effective product. Our customers always have and always will come first, and no project is too small! If you need something made of plastic, we are the company to talk to.


15. Streamline Plastics

Streamline Plastics is a Utah plastic molding company specializing in custom plastic injection molding and blow molding. We provide high-quality products and exceptional customer service.


16. PowerStream Technology

PowerStream is a company that specializes in industrial design, power supplies, battery chargers, DC/DC converters, batteries, and plastic injection molding. They help other companies develop products by providing engineering expertise and off-the-shelf solutions. They also offer custom manufacturing services in Utah and China, maintaining lasting relationships with their customers and factories.


17. Compax

COMPAX Packaging is a leading manufacturer of custom packaging solutions for beauty, personal care, and nutraceutical brands. With a sustainable manufacturing facility in Salt Lake City, they offer a wide range of stock items with customizable decoration options. Their expertise in packaging ensures high-quality and functional products that meet the needs of their renowned customers.


18. RE/MAX Equity

This company is a manufacturer and supplier of various materials and products, including carbon fiber pre-impregnated materials, SMC/BMC materials, and modified engineering plastics. They offer a wide range of services and solutions for different industries.


19. Shapepoint

  • Website: shapepoint.com
  • Headquarters: Saint George, Utah, United States
  • Headcount: 1-10

ShapePoint - Experienced Sourcing and Manufacturing in China. We have more than a decade of experience in helping clients from around the globe manufacture in China.


Want to find more plastic manufacturing companies?


If you want to find more companies that provide a variety of products, from protective cases to complex piping systems you can do so with Inven. This list was built with Inven and there are hundreds of companies like these globally.


With Inven you'll also get to know the company's:


  • Ownership: Which of these are private equity backed? Which are family-owned?
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...and a lot more!