Penn Products is part of a full-service, family-owned injection molding facility located in Portland, Connecticut USA. We manufacture what we sell.

What We Offer

We are real people, we are proud of our products, and we would love to serve you. We offer a range of plastics cases, from plain to highly decorated, and for a range of applications. We also offer certain other specialty products. We serve the direct-to-consumer market as well as a broad range of industrial markets, including aerospace, automotive, industrial, and medical. Our clients can be found across the United States, Canada, and around the world.


Penn Products had its inception in 1977 when the Pennoyer family purchased an existing injection molder in Bridgeport, Connecticut. For the next 35 years the company developed into an an industry leader in the area of plastic boxes for packaging and first aid. In 2012 Penn Products was incorporated into the operations of Promold Plastics, itself a family-owned injection molder, at their state of the art manufacturing facility in Portland, CT. Our line of plastic cases, already significant, was enhanced again in 2020 with the acquisition of the former Dewitt Plastics product line.

An Invitation

If you find what you need here on our website, wonderful. We will ship right from our manufacturing floor. If you need something special - a color, an imprint, custom foam inserts, or a large quantity - please reach out by phone or email and we will let you know what we can do. We also have the capability of manufacturing a completely new case design if your project requires that. Again, we would be happy to help you develop the ideal solution. Before long, we hope you will soon consider us a reliable and cost-effective extension of your own operations. And remember it is all made here in the U.S.A.


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