What Midwest Molding does

Midwest Molding, Inc. (MMI) is a privately held U.S. contract manufacturer specializing in custom injection-molded components and assemblies. Founded in April 1996 and headquartered in a 120,000 sq. ft. purpose-built facility in Bartlett, Illinois, the company operates 55 fully electric injection molding machines (50 horizontal, 5 vertical) ranging from 55T to 950T, sourced from premium press OEMs including Toyo, JSW, Krauss Maffei, Arburg, and Engel. Each press is supported by dedicated ancillary equipment (dryers, mixers, grinders, sprue pickers, robots, end-of-arm tooling) and integrated quality software systems with reject chutes that segregate suspect parts from accepted product.

The company's service offering spans the full program lifecycle rather than purely tonnage-based molding: engineering services (cradle-to-grave project management, mold flow analysis, ES testing, tooling design and build, part re-formulation for cost reduction, dedicated manufacturing cell design), core molding processes (straight injection, insert and composite, reel-to-reel continuous strip, two-shot, pre-mold/overmold, gas-assist), and assembly (wire harness assembly, multi-component assembly, sonic and vibration welding). The firm holds IATF 16949:2016, ISO 14001:2015, and ISO 9001:2015 certifications from DQS Laboratories and is a Certified Minority Owned Business Enterprise.

MMI serves enterprise customers in the automotive, transportation, electronics, and consumer goods industries through a direct B2B sales motion, with dedicated project and manufacturing engineers embedded in customer programs. Pricing is custom and quote-based; revenue is not publicly disclosed. The only named customer reference in the source material is Delphi, from which MMI received a 2005 Pinnacle Award for quality and service. No external investors, parent company, M&A activity, or public listings are referenced in the data.

Name

Midwest Molding

Legal name

Midwest Molding, Inc.

Website

https://mwmolding.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

101–250 employees

Short description

Midwest Molding is a privately held U.S. contract manufacturer of custom injection-molded components and assemblies serving enterprise automotive, transportation, electronics, and consumer goods customers from a 120,000 sq. ft. facility in Bartlett, Illinois.

Ownership category

akta.pro rank

Product category

Injection Molding Services

NAICS

Industrial Mold Manufacturing (333511)

SIC

Plastics Products, Nec (3089)

akta.pro primary industry

Custom Injection Molding & Contract Manufacturing (Job Shops/CMs) (IMANAFAJ)

akta.pro secondary industry

Automotive & Transportation Injection Molded Parts (IMANAFAB)

Keywords

• Injection molding services
• Plastic component manufacturing
• Contract manufacturing services
• Automotive parts supplier
• Assembly and welding services

Headquarters

HQ city

Bartlett

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Infrastructure, Operations, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Manufacturing Services: Revenue generated from manufacturing custom injection molded components and assemblies for automotive, transportation, electronics, and consumer goods industries. Services include tooling, molding, and assembly operations on a project/program basis.
2. Tooling and Engineering Services: Cradle to grave project management, new tooling build, part re-formulation for cost savings, design of dedicated manufacturing cells, and consultation services for innovation and error proofing.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Midwest Molding, Inc. is a B2B contract manufacturer that produces high-quality, complex injection molded plastic components and assemblies for the automotive, transportation, electronics, and consumer goods industries. The company operates 55 fully electric injection molding machines (55T–950T) at a 120,000 sq. ft. facility and offers supporting engineering services including project management, tooling design, mold flow analysis, part re-formulation, and dedicated manufacturing cell implementation.

Product overview

Midwest Molding operates as a contract manufacturer offering a unified portfolio of injection molding and assembly services. The core manufacturing services include Straight Injection Molding, Insert & Composite Molding, Reel to Reel Continuous Strip Molding, Two Shot Molding, Pre-Mold & Overmolding, and Gas Assist Molding, supported by assembly capabilities such as Wire Harness Assembly, Multi-Component Assembly, and Sonic & Vibration Welding. These manufacturing services are complemented by a suite of engineering services including Project Management (cradle to grave), Tooling Design & Build, Part Re-formulation, Mold Flow Analysis & ES Testing, and Dedicated Manufacturing Cell implementation. The company serves the automotive, transportation, electronics, and consumer goods industries.

Differentiator

Problem solved

Functional benefit

Products and services

• Straight Injection Molding Standard injection molding process for producing plastic components and parts. Used for high-volume production of molded plastic parts serving automotive, transportation, electronics, and consumer goods OEMs.
• Insert & Composite Molding Molding process that encapsulates metal inserts or combines multiple materials within a single molded part. Targeted at complex assemblies requiring multi-material integration.
• Reel to Reel Continuous Strip Molding Continuous strip molding process for high-volume production of small precision components using reel-to-reel material feeding.
• Two Shot Molding Multi-material injection molding process that combines two different materials or colors in a single part for assemblies requiring material layering.
• Pre-Mold & Overmolding Molding process that layers additional material over a pre-formed substrate or core component to add features such as soft-touch surfaces or combined material properties.
• Gas Assist Molding Injection molding technique using inert gas to create hollow sections in molded parts, reducing material weight and cycle time for large plastic components.
• Wire Harness Assembly Assembly service for electrical wire harnesses used in automotive and electronics applications.
• Multi-Component Assembly Assembly services combining multiple molded components into finished products for OEM customers.
• Sonic & Vibration Welding Welding services using sonic or vibration energy to join plastic components without fasteners or adhesives for assembly integration.
• Project Management Services Cradle to grave project management for prototype and production tool build, dedicated manufacturing work cell development, and lean manufacturing implementation.
• Tooling Design & Build Design and construction of new tooling guaranteed for the life of the program for customer manufacturing programs.
• Part Re-formulation Services Cost-saving analysis and redesign services for re-formulating components to reduce cost while maintaining functionality and quality.
• Mold Flow Analysis & ES Testing Engineering simulation and testing services to optimize mold design and predict part quality before production.
• Dedicated Manufacturing Cells Design, setup, and implementation of dedicated manufacturing work cells for specific production requirements.
• Consultation Services Advisory services for innovation, error proofing, re-design guidance, and process optimization for complex assemblies.

Quantifiable outcome

• Zero Defects
• +2 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators7 records

Recent moves4 records

Expansion highlights4 records

Direct peers

• EVCO Plastics: Wisconsin-based custom injection molder of similar scale serving multiple industries including automotive, medical, and consumer goods with engineering and assembly services — closest mid-market US comparator to Midwest Molding.
• Mack Molding: Vermont-based custom injection molder and contract manufacturer offering molding, assembly, and engineering services to industrial and consumer customers — comparable contract manufacturing model with similar scale and breadth of capabilities.
• Plastikon Industries: California-based contract injection molder serving medical, automotive, and consumer products with molding, tooling, and assembly — comparable multi-vertical custom molding service model.
• Plastek Industries: Pennsylvania-based mold maker and contract manufacturer offering custom injection molding, tooling design, and assembly for personal care, packaging, and industrial customers — directly comparable as a US-based mold-and-mold-shop operator.
• Intertech Plastics: Illinois-based full-service injection molder providing design, tooling, molding, and assembly with a multi-industry customer base — geographic and service-model overlap with Midwest Molding makes this an apt direct comparator.

Broad incumbents

• Phillips-Medisize (Molex): Much larger global custom injection molder owned by Molex (Koch) serving automotive, medical, and electronics with extensive engineering and assembly — comparable service category but at significantly greater scale and geographic breadth than MMI.
• Jabil: Global contract manufacturer with substantial plastics injection molding capabilities serving automotive, consumer electronics, and industrial customers — competes for the same OEM molding RFQs as MMI but at vastly greater scale and with broader end-to-end manufacturing offerings.
• Hutchinson: Global Tier 1 automotive supplier (TotalEnergies affiliate) with plastics injection molding, sealing, and rubber products — supplies the same automotive OEMs as MMI but at higher tier level with broader product portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Midwest Molding