What Engineering Industries does

Engineering Industries (EI) is a custom plastic injection molding manufacturer headquartered in Verona, Wisconsin, founded in 1963 by University of Wisconsin professor Ron Daggett. The company operates a single 34-press facility spanning 40 to 250 tons, using both electric and hydraulic presses equipped with RJG Inc. e-Dart cavity pressure tracking, automated part handling robotics, mobile secondary automation at the press station, and in-house tooling maintained by certified journeyman toolmakers. Its process stack is anchored by mold flow analysis using SolidWorks CAD, a 450+ grade and color material library, and an ISO 9001:2015 quality management system that supports PPAP Levels 1-5 validations and UL Recognized Molder status for electrical applications.

EI's commercial model is sales-led and project-based, serving Midwest OEMs and Tier 1 suppliers across six industry verticals: Agriculture, Appliance, Consumer Goods, Durable Medical, Electrical Components, and Industrial. All engagements are initiated via a quote request workflow requiring part files, volumes, resin requirements, and critical dimensions; there is no public pricing, self-serve channel, or third-party distribution described. Revenue is generated through custom injection molding and insert molding services, augmented by integrated value-added operations (ultrasonic welding, heat-staking, pad printing, heat transfer, functional testing, assembly, subassembly, and kitting) performed within production cells.

The company has been 100% employee-owned through an Employee Stock Ownership Plan since 2006 and has earned four consecutive Great Place to Work certifications (most recently October 2025 - October 2026). The current leadership team includes President John Ballweg, P.E. (joined 1988), Vice President of Engineering and Business Development Matt Nelson, P.E., Director of Operations Craig Wadzinski, Director of Finance Mitch Feller, CPA, and Director of People Operations Sandy Bieringer. Revenue is not publicly disclosed, no external funding rounds or M&A activity are recorded, and the operating footprint is exclusively regional (Midwest USA).

Name

Engineering Industries

Legal name

Engineering Industries Inc.

Website

https://engineeringindustries.com

Company type

Private

Founded year

1963

Operating status

Operating

Headcount range

101–250 employees

Short description

Engineering Industries is a 100% employee-owned custom plastic injection molding manufacturer in Verona, Wisconsin. It produces precision molded components and integrated sub-assemblies for Midwest OEMs and Tier 1 suppliers across six industry verticals.

Ownership category

akta.pro rank

Product category

Custom Plastic Injection Molding / Contract Manufacturing

NAICS

Plastics Product Manufacturing (3261), Semiconductor and Other Electronic Component Manufacturing (33441)

SIC

Plastics Products, Nec (3089), Electrical Industrial Apparatus (3620)

akta.pro primary industry

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

akta.pro secondary industries

Electrical & Electronics Injection Molded Components (Connectors, Housings) (IMANAFAD), Industrial & Machinery Injection Molded Components (Gears, Wear Parts) (IMANAFAF)

Keywords

• Custom plastic injection molding
• Insert molding services
• Contract plastic manufacturing
• Value-added assembly
• Precision molded components

Headquarters

HQ city

Verona

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Injection Molding Services: EI generates revenue primarily through custom plastic injection molding services for complex components, serving multiple industries including agriculture, appliance, consumer goods, durable medical, electrical components, and industrial sectors. Revenue is driven by custom project-based work with no standard product pricing publicly disclosed.
2. Insert Molding Manufacturing: Plastic insert molding combines thermoplastic material with metal inserts, terminals, and fasteners. EI molds each insert directly into the part to create secure, repeatable bonds. This process supports customers seeking reduced assembly time and improved product durability.
3. Value-Added Operations: Value-added operations including pad printing, heat transfer decoration, ultrasonic welding, heat-staking, functional testing, assembly and subassembly, and kitting are integrated into production cells. These services are offered as bundled additions to core molding services, reducing supply chain complexity for customers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Engineering Industries is a custom plastic injection molding manufacturer producing high-quality molded components and sub-assemblies for OEMs and Tier 1 suppliers. Its core offerings are Custom Injection Molding and Insert Molding across a 40–250 ton press range, augmented by Value-Added Operations (pad printing, heat transfer decoration, ultrasonic welding, heat-staking, functional testing, assembly, subassembly, kitting) and supported by engineering services including mold flow analysis, in-house tooling maintenance, and material selection assistance.

Product overview

Engineering Industries (EI) is a custom plastic injection molding manufacturer offering a unified portfolio centered on two core manufacturing processes: Custom Injection Molding and Insert Molding. These core services are augmented by Value-Added Operations (pad printing, heat transfer decoration, ultrasonic welding, heat-staking, functional testing, assembly, and kitting) and supported by engineering services including mold flow analysis, in-house tooling maintenance, and material selection assistance. The company serves six primary industry verticals—Agriculture, Appliance, Consumer Goods, Durable Medical, Electrical Components, and Industrial—through specialized injection molding solutions tailored to each sector's requirements. All services operate within an ISO 9001-certified quality management system and leverage automation, real-time monitoring, and a 40–250 ton press range.

Differentiator

Problem solved

Functional benefit

Products and services

• Custom Injection Molding Custom plastic injection molding services using electric and hydraulic presses ranging from 40 to 250 tons, supporting high-mix, specified-volume production with automation, real-time process monitoring, and technical oversight for OEMs and Tier 1 suppliers.
• Insert Molding Plastic insert molding combining thermoplastic material with metal inserts, terminals, and fasteners to create integrated assemblies with tight tolerances and eliminated secondary fastening for customers seeking reduced assembly time and improved product durability.
• Value-Added Operations Integrated secondary operations including pad printing, heat transfer decoration, ultrasonic welding, heat-staking, functional testing, assembly, subassembly, and kitting performed within production cells to reduce customer supply chain complexity.

Quantifiable outcome

• PPAP Levels 1 through 5 validations supported with full lot-level material and parameter traceability.
• +3 more outcomes

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators5 records

Recent moves10 records

Expansion highlights5 records

Direct peers

• Sturges Molded Products: Custom injection molder offering insert molding, overmolding, and assembly for industrial and consumer markets. Similar mid-sized contract manufacturer profile with a comparable service mix.
• Baytech Plastics: Custom plastic injection molder offering insert molding, overmolding, and assembly for industrial, automotive, and consumer markets. Comparable in scale and in-cell value-added approach to Engineering Industries.
• EVCO Plastics: Wisconsin-based custom plastic injection molder serving industrial, medical, and consumer OEMs with multi-press capacity and value-added services. Direct Midwest competitor with a similar custom molding and insert molding model.
• C&J Industries: Custom plastic injection molding and contract manufacturing company serving industrial, medical, and consumer markets. Closely comparable in service mix including insert molding, assembly, and value-added operations.
• Mack Molding: Custom injection molder and contract manufacturer with engineering, tooling, molding, and assembly capabilities across multiple US sites. Comparable in offering a vertically integrated custom molding solution to OEM customers.
• Plastic Components, Inc. US-based custom plastic injection molder providing design support, molding, and assembly for industrial and appliance OEMs. Directly comparable custom molding and assembly offering.
• Rodon Group: Custom plastic injection molder specializing in high-volume production, with in-house tooling and assembly services. Comparable custom molding business model serving industrial and consumer OEMs.

Emerging players

• Proto Labs (Protolabs): Digital manufacturing platform offering injection molding, CNC machining, and 3D printing with automated quoting. Adjacent emerging competitor in the low-volume, quick-turn injection molding space where EI also operates.

Broad incumbents

• Tessy Plastics: Large US custom injection molder with extensive press capacity, automation, and assembly operations serving medical, automotive, and industrial OEMs. Broader scale incumbent with overlapping end-markets.
• Phillips-Medisize: Large-scale global contract manufacturer specializing in medical, pharmaceutical, and drug delivery devices, with significant injection molding and assembly capabilities. Larger incumbent with overlapping durable medical molding exposure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/engineering-industries-inc.

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

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 Engineering Industries