Milwaukee-Area Contract Manufacturer of Precision Plastic and Metal Part and Components, With Value-Added Services

Dielectric Manufacturing is a leading, one-source contract manufacturer of plastic and metal parts, components and assemblies, based in metropolitan Milwaukee, Wisconsin. We machine and fabricate a wide variety of materials, including thermosets, thermoplastics, ferrous metals and non-ferrous metals. We formerly operated as Dielectric Corp., but changed our name in mid-2019 to reflect our broad range of capabilities.

We offer machining, fabrication and related value-added services at three locations in Wisconsin and Iowa, making us a preferred single-source contract manufacturer.

In June 2020, we opened a newly built 100,000-square-foot facility in the Milwaukee metro community of Richfield, Wis. With this new facility, we are able to offer even greater production efficiencies that benefit our customers. Read more.

Our new address is W206N12865 Gateway Court, Richfield, WI 53076.

Dielectric Manufacturing customers rely on our family of employees to deliver unparalleled, value-added solutions in design collaboration, prototyping, component manufacturing, assembly, packaging, and inventory services.

The highly knowledgeable Dielectric Manufacturing team is known for being a reliably attentive partner to a wide variety of businesses, including Fortune 500 companies.

Custom precision components that we manufacture on a contract basis become part of equipment used in diverse industries, including defense, aerospace, health care, food processing, wind power generation, gas & oil, power distribution, and agriculture. The parts and components we manufacture are used worldwide.

Our one-stop-shop approach assures that our customers benefit from the greatest efficiencies and responsiveness to time-sensitive deadlines.

Dielectric Manufacturing holds ISO 9001-2015 certification.

For reliable contract manufacturing services near Milwaukee, contact Dielectric Manufacturing.

Contract Manufacturer value added services

Contract Manufacturing
Value-added Services

  • Design collaboration
  • Prototyping
  • Welding
  • Flame polishing, buffing and sandblasting
  • Painting and silk screening
  • Special finishes
  • Insertion of component elements
  • Complete assembly and sub-assembly
  • Packaging –ranging from assembly kits to complete finished packaging
  • Inventory management
  • Delivery programs

Formerly Known as Dielectric Corporation

We have been a contract manufacturer of custom parts for more than 50 years, and formerly operated as Dielectric Corporation. Optimizing cost and performance is something we do every day to benefit our customers. No matter the size or complexity of your order, we will ensure you achieve the best results possible.

Our main office and manufacturing plant is in the metropolitan Milwaukee community of Germantown. Additional manufacturing plants are in Waupaca, Wis., and Lake Mills, Iowa, giving us the capacity to meet customer deadlines for contract manufacturer plastic parts, metal parts, and assemblies.

Contact contract manufacturer Dielectric Manufacturing near Milwaukee for a quote on a project, or to learn more about our full range of services relating to component fabrication. Call 800-367-9122, use our Quick Contact form, or our Request a Quote form.

Leave a Google Review about our precision fabrication.

“Our Dielectric Manufacturing sales rep pays a lot of attention to us. He makes me feel like it’s more of a partner relationship and not just a vendor situation.”

Dielectric Manufacturing Knowledge Base


Learn about metal and plastic properties, see answers to frequently asked questions about parts and assemblies, and get other information on component fabrication and machining.

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Need more information about plastic or metal component fabrication and assembly? Call us at 800-367-9122, or email