• Diversified Plastics 40th Anniversary

  • 3D Printed Injection Molds

    Fast, precision prototype production using 3D printing and a variety of materials.


  • Product Gallery

    Custom plastic molded and machined parts and assemblies.

  • Markets We Serve

    Medical, aerospace, industrial OEM, filtration, defense and more.

An employee-owned company, Diversified Plastics is a leading precision plastic injection molding and contract manufacturer. We provide small- to medium-sized custom plastic injection molded components and assemblies for a wide range of applications. In addition to manufacturing, we offer complete value-added services, including design assistance, 3D injection molded prototyping, decorating, assembly and clean room packaging. We have experience working with a wide variety of injection molding grade resins and exotic materials.

Request a quote, email or call us at +1 763.424.2525 today.

  • Aug 3rd, 2017
    Diversified Plastics, Inc. appoints Kevin G. Hogan as CEO
    MINNEAPOLIS—Diversified Plastics, Inc., a custom plastic-injection molder of high-precision thermoplastic components, has announced the appointment of Kevin G. Hogan as chief executive officer (CEO). Hogan succeeds James Dow, founder and previous CEO of Diversified Plastics. Retiring in October 2017, Dow will continue to serve as chairman of the board. The company was sold to the Read more...
  • Aug 2nd, 2017
    Diversified Plastics Featured in Built in Brooklyn Park Video
    Diversified Plastics, Inc. featured in video for new ad campaign called, “Built in Brooklyn Park”. The campaign will focus on manufacturing and products made in Brooklyn Park. Its intent is to encourage economic growth in the area.
  • Jul 28th, 2017
    Parts Manufactured by Diversified Plastics, Inc. Get Closer to Jupiter’s Giant Storm
    Components manufactured by Diversified Plastics, Inc. are contained in an instrument on the Juno Spacecraft that is orbiting Jupiter. This spacecraft and its instruments are the closest human-built objects to travel past the biggest storm in our solar system, known as the Great Red Spot. NASA recently posted the closest images that have ever been Read more...
  • Jun 15th, 2017
    Diversified Plastics, Inc. finalist, Best in Class – Mid-size for the Minnesota Business Manufacturing Awards
    Diversified Plastics, Inc. has been named as a finalist in the Best in Class – Mid-size category for the 2017 Minnesota Business Manufacturing Awards. Winners in each category will be announced at the awards gala to be held on Sept. 28, 2017.
  • Jun 9th, 2017
    DPI’s Janel Rosine participating in Crown Rally 2017
    Janel Rosine from Diversified Plastic Inc. is participating in Crown Rally 2017 this weekend, June 9 through June 11. Benefiting the Epilepsy Foundation and Kars4Kids, the event unites automotive enthusiasts for driving and navigational adventures throughout the Midwest. Rosine is part of a team that has raised money for the event. Diversified Plastics is one Read more...
  • May 22nd, 2017
    Women’s Networking Breakfast held at ANTEC
    Annette Lund, vice president at Diversified Plastics, Inc. providing insight as a member of an influential panel of women in the plastics industry at ANTEC 2017. This was the first Women’s Networking Breakfast held at ANTEC the annual conference for the Society of Plastics Engineers (SPE).
  • Mar 28th, 2017
    Watch our new video. It provides insight into Diversified Plastics, Inc. plastic injection molding and contract manufacturing capabilities, facilities and equipment.
  • Feb 3rd, 2017
    Diversified Plastics, Inc. Celebrates Its 40th Anniversary
    MINNEAPOLIS—Diversified Plastics, Inc., a custom injection molding company of high-precision components, is celebrating its 40th anniversary. The parts manufactured by Diversified Plastics can be found in dental x-ray machines, lithium-ion batteries, Juno spacecraft instruments, medical devices, tournament-quality foosball tables and other products and equipment. Founded in 1977, by James R. Dow and William J. Cullen, Read more...
  • Jan 18th, 2017
    Diversified Plastics, Inc. appoints William K. Sourinta as quality manager
    MINNEAPOLIS—Diversified Plastics, Inc. has appointed William K. Sourinta as quality manager. Sourinta will play an integral part in continuous advancement and maintenance of Diversified Plastics’ quality systems to ensure that products meet or exceed customer requirements. In this role, he will also be responsible for training and keeping the company current and compliant with industry Read more...