• 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.

  • 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...
  • Jul 13th, 2016
    Featured by Minnesota Business
    Minnesota-made precision parts are flying around Jupiter http://minnesotabusiness.com/minnesota-made-precision-parts-are-flying-around-jupiter-right-now
  • Jul 5th, 2016
    Juno Spacecraft contains components manufactured by Diversified Plastics
    Launched by NASA in August 2011, the solar-powered Juno spacecraft entered Jupiter’s orbit on Monday, July 4, 2016. The spacecraft is carrying the Jovian Auroral Distribution Experiment (JADE) instrument, which contains three parts manufactured by Minnesota-based Diversified Plastics, Inc. Engineered by a nationally recognized independent research and development laboratory, the JADE sensor is being used Read more...
  • Apr 18th, 2016
    Diversified Plastics Receives Gold Award for Wellness by Design
    Diversified Plastics, Inc. has received the Gold Level Award for Hennepin County’s 2015 Wellness by Design competition. The Hennepin County Human Services and Public Janel Rosine and Elaine Haglund add the 2014-2015 award to Diversified Plastics’ Wellness by Design banner. Health Department each year recognizes organizations that make employee health a priority through creative and effective Read more...
  • Jun 4th, 2015
    Diversified Plastics’ Roger Vang Finalist for CFO of The Year
    Minneapolis, MINN — June 4, 2015 — Roger Vang, chief financial officer at Diversified Plastics, Inc. was selected as one of four finalists for CFO of the Year by Plastics News magazine. Recognition came during the Plastics Financial Summit in Chicago on June 3. This was the first year that Plastics News presented this award Read more...
  • Apr 30th, 2015
    Diversified Plastics named ESOP company of the year
    Minneapolis, MINN — April 30, 2015 — Diversified Plastics, Inc. has received the Company of the Year Award by the Minnesota/Dakotas Chapter of the ESOP Association (Employee Stock Ownership Plan). Diversified Plastics’ ESOP provides its employees company stock like a typical 401K for an excellent source of retirement income. The employees proudly took ownership of Read more...
  • Feb 19th, 2015
    Diversified Plastics named one of the most innovative suppliers at MD&D West
    Minneapolis, MINN — February 19, 2015 — Diversified Plastics, Inc. was named one of the ten Most Innovative Suppliers exhibiting at the recent Medical Design and Manufacturing (MD&M) show in Anaheim, Calif. The company was recognized for using additive manufacturing (3D printing) technology to create plastic injection molds for producing prototype parts. This innovative prototyping Read more...
  • Sep 24th, 2014
    New use of 3-D additive manufacturing technology saves thousands of dollars
    Minneapolis, MINN — September 10, 2014 — Diversified Plastics, Inc. saved 88% in prototype part development costs and 80% development time for medical device maker Coloplast by using a new, 3-D additive manufacturing process to create injection mold components. Coloplast needed to produce prototype medical device parts from injection-molded thermoplastic elastomer (TPE) material to accurately evaluate Read more...