What Dielectric Manufacturing does

Dielectric Manufacturing, Inc. is a third-generation, family-owned US contract manufacturer founded in 1966 as Dielectric Corporation and headquartered in Richfield, Wisconsin. The company fabricates custom precision plastic, metal and carbon fiber components and assemblies for OEMs and Tier suppliers, primarily serving Fortune 500 firms across aerospace and defense, healthcare and medical equipment, power generation and distribution, food processing, energy, agriculture, marine and power sports. Its core technology centers on CNC machining, 5-axis machining, 6-axis laser cutting, waterjet processing, stamping, turning, bending, welding and assembly supported by an advanced quality-control stack (PC-DMIS CAD++, Brown & Sharpe CMM, Mitutoyo profilometer, Keyence IM-8000) and ISO 9001:2015 and ITAR certifications, with CMMC 2.0 implementation in progress.

The company operates four production facilities: a 100,000 sq ft Richfield, WI headquarters opened in 2020, a Waupaca, WI ferrous-metals plant operated as subsidiary Centerline Machine (acquired 2015), a Lake Mills, IA manufacturing facility, and a Richmond, IL busbar plant operated as subsidiary EMS Industrial & Service Co. (acquired October 2025). Service lines extend beyond fabrication into design collaboration, prototyping (SLA 3D printing, cast urethane, CNC), assembly, kitting, packaging and inventory management, positioning Dielectric as a single-source contract manufacturer from concept through delivery.

Dielectric monetizes through custom quote-based pricing on engineering-to-spec parts and assemblies, with multi-year contracts implicit in long-running OEM supply relationships. Go-to-market is enterprise field sales targeting Fortune 500 OEMs combined with inside sales for mid-market customers, supported by a content-marketing heavy website, a public material-properties knowledge base, LinkedIn presence and trade show participation (notably SATShow 2026). Revenue is not publicly disclosed.

Name

Dielectric Manufacturing

Legal name

Dielectric Manufacturing, Inc.

Website

https://dielectricmfg.com

Company type

Private

Founded year

1966

Operating status

Operating

Headcount range

101–250 employees

Short description

Dielectric Manufacturing is a third-generation, family-owned US contract manufacturer of custom precision plastic, metal and carbon fiber components and assemblies, serving Fortune 500 OEMs across aerospace and defense, healthcare, power generation, food processing and other industries through four facilities in Wisconsin, Iowa and Illinois.

Ownership category

akta.pro rank

Headquarters

HQ city

Richfield

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Parts Manufacturing: Contract manufacturing of custom plastic and metal parts and assemblies. Single-source approach spanning from design collaboration through inventory management. Serves OEMs and suppliers including Fortune 500 companies with precision components.
2. Value-Added Services: Additional revenue streams from design collaboration, prototyping, assembly, kitting, packaging, and inventory management services. Also distributes unfinished materials including plastics in sheet, rod and tube form, metals in sheet and block form, and carbon fiber composites.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Dielectric Manufacturing is a single-source contract manufacturer that produces custom precision plastic, metal, and carbon fiber parts and assemblies for OEMs and suppliers, including Fortune 500 companies. Services span design collaboration, prototyping, CNC fabrication and machining, assembly, packaging and kitting, and inventory management, with capabilities across thermoplastics, thermosets, ferrous and non-ferrous metals, and carbon fiber composites. The company also distributes unfinished raw materials (plastics in sheet, rod and tube; metals in sheet and block; carbon fiber composites).

Product overview

Dielectric Manufacturing is a single-source contract manufacturer offering precision plastic, metal, and carbon fiber component fabrication and assembly services. The company operates as a unified platform of integrated manufacturing services centered around design collaboration, prototyping, fabrication/machining, assembly, and inventory management. Core services are delivered through their main facilities in Wisconsin (Richfield headquarters and Waupaca) and Lake Mills, Iowa, with acquired subsidiaries Centerline Machine (ferrous metals machining) and EMS Industrial (busbar production). Materials offered include thermoplastics (ABS, acrylic, PEEK, Teflon, Nylon, PVC, polyethylene), thermosets (glass epoxy, Micarta, GPO, Nomex), carbon fiber composites, non-ferrous metals (aluminum, copper, brass, Inconel, titanium), and ferrous metals (carbon steel, stainless steel). The company also distributes unfinished materials and maintains comprehensive quality control with ISO 9001:2015 certification.

Differentiator

Problem solved

Functional benefit

Brands

• Centerline Machine: Ferrous metal machining and fabrication facility in Waupaca, Wisconsin, specializing in steel, composites and exotic alloys with laser cutting and waterjet processing capabilities
• EMS Industrial & Service Co.

Products and services

• Custom Fabrication and Machining CNC and precision fabrication of plastic, metal, and carbon fiber components using vertical and horizontal machining, 5-axis machining, routing, 6-axis laser cutting, drilling, milling, stamping, turning, bending, sawing, welding, and more; serves OEMs and suppliers across aerospace, defense, healthcare, power, and other industries.
• Design Collaboration Collaborative engineering where Dielectric engineers work with OEM customers to optimize parts for manufacturability, streamline processes, reduce costs, and maximize quality and performance; includes material selection guidance.
• Prototyping Rapid prototyping services including SLA 3D printing, cast urethane prototypes, and CNC prototypes for highly accurate, geometrically complex models and end-use parts; allows testing of multiple design versions before full-scale production.
• Assembly Services Complete assembly and sub-assembly services, including welding, flame polishing, buffing, sandblasting, painting, silk screening, special finishes, and insertion of component elements.
• Packaging and Kitting Packaging services ranging from assembly kits to complete finished packaging, along with inventory management and delivery programs.
• Inventory Programs Inventory management and stocking/delivery programs to support ongoing production needs of OEM customers.
• EMS Industrial & Service Co. Busbar Manufacturing Fabrication of copper busbars, aluminum busbars, and customized busbar systems for electric vehicles, data centers, power generation, telecommunications, and defense markets; operated from Richmond, Illinois facility.
• Centerline Machine Ferrous Metal Fabrication Machining and fabrication of ferrous metals (steel, composites, exotic alloys) including laser cutting and abrasive waterjet processing; ITAR-compliant and ISO 9001 certified, operated from Waupaca, Wisconsin facility.
• Unfinished Materials Distribution Distribution of unfinished materials including plastics in sheet, rod and tube form (thermoplastics such as ABS, acrylic, PEEK, polyethylene, polystyrene, PVC, Delrin, Lexan, Teflon, Nylon), metals in sheet and block form (ferrous and non-ferrous), and carbon fiber composites.

Quantifiable outcome

• Up to 75% shorter lead times for busbar production
• +1 more outcomes

Named customers3 records

Segments8 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core and minor.

• EMS Industrial & Service CompanycoreStrategic or Co-development Partner · 27 October 2025Acquired October 2025. Richmond, Illinois-based manufacturer of electric busbars. Specializes in fabricating copper busbars, aluminum busbars and customized busbar systems. Enables expansion into high-growth markets including electric vehicles, data centers, power generation, telecommunications and defense. Provides up to 75% shorter lead times. Family-run business serving electrical industry for more than 60 years.
• Keller, Inc.minorOthers · 28 June 2019Design/build firm based in Germantown, Wisconsin. Handled development and construction of new 100,000-square-foot headquarters facility in Richfield, Wisconsin completed in 2020.
• Centerline MachinecoreStrategic or Co-development Partner · 22 January 2015Acquired January 22, 2015. Centerline Machine, Inc. of Waupaca, Wisconsin specializes in machining and fabrication of steel, composites and exotic alloys. Complements Dielectric's strengths in plastic and non-ferrous metal products. Expands service mix to include metal fabrication, laser cutting, and abrasive waterjet processing. Operations continue at Waupaca facility. Company is ITAR-compliant and ISO 9001-2008 certified.

Scale indicators5 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Hubs: Hubs (formerly 3D Hubs) provides instant quoting and on-demand CNC, injection molding and 3D printing for industrial buyers, competing head-on with Dielectric in low- to mid-volume precision parts for design engineers.
• Spectrum Plastics Group: Spectrum Plastics Group specializes in custom-manufactured plastic components and assemblies for medical, aerospace and industrial OEMs—a direct peer for Dielectric's regulated-vertical plastics expertise.
• Polymer Group (Precision Plastics): Precision Plastics is a custom plastic and metal fabricator serving aerospace, defense and industrial OEMs with CNC machining and assembly—closely comparable in customer verticals and contract-manufacturing services to Dielectric.
• Xometry: Xometry is an online marketplace aggregating CNC, sheet metal, plastics and urethane casting capacity for industrial customers, overlapping with Dielectric's custom machined plastics and metals offerings for OEM customers.
• Mack Molding: Mack Molding is a U.S. custom plastics contract manufacturer offering injection molding, structural foam molding and assembly services to industrial OEMs—overlapping with Dielectric's plastics contract manufacturing and assembly capabilities.
• Protolabs: Protolabs is a digital contract manufacturer offering CNC machining, injection molding, sheet metal and 3D printing to OEMs—directly competing with Dielectric Manufacturing for the same Fortune 500 prototype and low-volume production work.
• Fictiv: Fictiv operates a digital manufacturing platform for CNC machining, injection molding, sheet metal and urethane casting, selling directly to OEMs and product teams—an emerging direct competitor to Dielectric's quick-turn contract manufacturing service.
• EVCO Plastics: EVCO Plastics is a custom plastic injection molding and contract manufacturing company serving medical, industrial and consumer OEMs—comparable in materials expertise and single-source OEM model to Dielectric Manufacturing.
• Stratasys Direct Manufacturing: Stratasys Direct offers rapid prototype and on-demand production 3D printing, CNC machining and injection molding services—competing with Dielectric's prototyping division (SLA 3D printing, cast urethane, CNC prototypes) for design engineer attention.

Broad incumbents

• Applied Industrial Technologies: Applied Industrial Technologies is a large industrial distributor and service provider of bearings, fluid power, mechanical and fabricated metal components—overlapping with Dielectric's metal parts distribution and industrial OEM customer base, though broader in scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/dielectricmanufacturing
• LinkedInlinkedin.com/company/dielectric-manufacturing

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Dielectric Manufacturing