Gregstrom isn’t just a plastic contract manufacturer. We’re a custom rotomolder and heavy-gauge thermoformer with full assembly and testing capabilities. Our featured projects and portfolio of rotomolded and thermoformed parts demonstrates our experience and our expertise. How can we help you?

Are you looking for a plastic parts manufacturer with rotational molding and plastic thermoforming? Gregstrom gets results.

Rotational Molding and Plastic Thermoforming

Gregstrom’s featured projects include a Heineken Draught Keg Cooler, a Medical Laser Assembly, and a Chemical Feeder that met demanding requirements and precise specifications. In addition to custom rotomolding and heavy-gauge thermoforming, we provide assembly and testing, finishing, shipping, and other expert services.

Featured Projects

Gregstrom’s portfolio of custom rotomolded parts and custom thermoformed parts is detailed, diverse, and powerful proof of our capabilities. From baby changing stations to boats, and from medical instrument cases to shopping cart accessories, we do more than just mold and form plastic parts. We add value with our services.


Made in the USA Plastic Parts Manufacturer

For nearly 70 years, Gregstrom Corporation has been forming and molding plastics at our Made in the USA manufacturing facilities in Massachusetts. For custom thermoformed parts and heavy-gauge rotomolded parts, our experience is unmatched. To learn how we can support your application, contact us online or call (781) 935-6600.