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Plastics & Packaging

Top 17 Injection Molding Manufacturers in Minnesota 2026

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FirmsLedger lists 17 injection molding manufacturers headquartered in Minnesota. That ranks 6th among the 46 states with listings, behind Texas (22), Michigan (21) and 3 other states. They are spread across 17 cities, including Brainerd, Chanhassen, Chaska and Circle Pines.

By specialty, Minnesota has plastic extrusion (3) and thermoforming (3) listings. Capabilities that more than one of them list include plastic injection molding (2).

Compare 10 injection molding manufacturers in Minnesota
CompanyCitySpecialtyPhoneWebsite
Aroplax CorporationMonticelloCustom Injection Molding(763) 295-5002aroplax.com
Minnesota Micro Molding, Machining & ManufacturingHutchinsonMicro Injection Molding(952) 261-9804mn-micro.com
Modern Molding, Inc.DelanoProduction Injection Molding(763) 972-6761modernmolding.com
Olsen Tool & PlasticsChaskaCustom injection mold building(952) 448-7892olsentool.com
PlastiCertLewistonInjection molding (standard and high-temperature thermoplastics)(507) 523-2300plasticert.com
Taurus Engineering And ManufacturingSt PaulInsert injection molding(651) 484-9292taurusengineering.net
Advanced Molding TechnologiesCircle PinesInjection Molding(763) 785-9229advancedmt.com
Alpha Plastics, IncCoon RapidsPressure forming(763) 786-6940alphaplastics.net
Harbor Plastics, Inc.Maple PlainCustom Plastic Injection Molding(763) 479-4772harbor-plastics.com
Profile Plastics LLCChanhassenIn-Mold Decorating (IMD)(952) 934-6594profilemn.com
Aroplax Corporation logo

Aroplax Corporation

Monticello, Minnesota

Founded in 1943 in Monticello, Minnesota, Aroplax began by machining components for the WWII effort. The company transitioned to thermoset mold tooling and adopted thermoplastic injection molding by 1954.

Minnesota Micro Molding, Machining & Manufacturing logo

Minnesota Micro Molding, Machining & Manufacturing

Hutchinson, Minnesota

Minnesota Micro Molding, Machining & Manufacturing (operating as M5 Micro) was founded in 2016 in Hutchinson, Minnesota. The company began as a specialist in micro-scale molding and machining, combining both capabilities under one roof.

Modern Molding, Inc. logo

Modern Molding, Inc.

Delano, Minnesota

Modern Molding, Inc. (MMI) was founded in 1981 in Delano, Minnesota, as a family-owned business.

Olsen Tool & Plastics logo

Olsen Tool & Plastics

Chaska, Minnesota

Olsen Tool & Plastics operates from Chaska, Minnesota, where it has been based since 1991. The company traces its roots to 1955 when Ken Olsen rented a basement room in Minneapolis for a handmade lathe.

PlastiCert logo

PlastiCert

Lewiston, Minnesota

PlastiCert operates from Lewiston, Minnesota, where it was established in 1981. The company provides vertically integrated engineering, tooling, and production services.

Taurus Engineering And Manufacturing logo

Taurus Engineering And Manufacturing

St Paul, Minnesota

Taurus Engineering and Manufacturing operates from a 33,000-square-foot facility in St. Paul, Minnesota.

Advanced Molding Technologies logo

Advanced Molding Technologies

Circle Pines, Minnesota

Advanced Molding Technologies operates from Circle Pines, Minnesota. The company was founded by Brett Nelson, a toolmaker and engineer, who started the business out of frustration with customers being underserved and overcharged.

Alpha Plastics, Inc

Coon Rapids, Minnesota

Alpha Plastics, Inc. operates from Coon Rapids, Minnesota, where it was founded in 1976.

Harbor Plastics, Inc. logo

Harbor Plastics, Inc.

Maple Plain, Minnesota

Harbor Plastics, Inc. operates from Maple Plain, Minnesota, about 15 miles west of Minneapolis.

Profile Plastics LLC logo

Profile Plastics LLC

Chanhassen, Minnesota

Profile Plastics operates a manufacturing plant in Chanhassen, Minnesota, where it produces custom thermoplastic injection-molded parts. Its core capabilities center on advanced molding techniques that combine decoration and electronics with injection molding.

Frequently asked questions

Which injection molding manufacturers in Minnesota list plastic injection molding?

2 companies list it: Aroplax Corporation and REO Plastics.

Which certifications do injection molding manufacturers in Minnesota list?

ISO 9001:2015: Aroplax Corporation, Modern Molding and 4 others. FDA Registered: Taurus Engineering And Manufacturing and Advanced Molding Technologies. ISO 9001: Advanced Molding Technologies and REO Plastics.