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Custom Plastic Manufacturing and Thermoforming Services

One-stop shop for quick, end-to-end plastic manufacturing


Get simple solutions for even your most complex plastic manufacturing needs. SSI services make your deadlines our priority, completing everything in-house to ensure you get consistent, controlled end-to-end manufacturing backed by over 40 years of proven experience.

Solving the Challenge of Custom Plastics

When ready-made components don’t meet your needs, you shouldn’t have to worry about meeting your project deadlines or adding unnecessary complexity to your operations. At SSI, you won’t need to coordinate with multiple vendors, worry about keeping your partners on track, or be turned away for small-volume orders.

a CAD file drawing of a custom plastic part

How We Help

At SSI, we tackle the typical pitfalls of plastic manufacturing head-on:

a design development engineer at SSI custom plastics views a design file on his computer

Fast, Full Service

Don’t delay your timelines on our account. Plus, get it all done with us — secondary services included.

three drill bits on a workshop table

Projects Large and Small

No minimum order requirements here. We handle everything from prototype runs to large-scale operations.

a thermoforming engineer draws a custom plastic part on a sheet of paper

End-To-End Support

Need help getting started? We can take you from design through final touches. Just bring us your idea; we’ll make it work.

Learn more about our process →


Our Services

We offer a full suite of plastic forming services to bring your ideas to life, including: 

Explore our manufacturing services →
thermoforming engineer entering information in a computer at a custom plastic forming company

“Using vacuum forming instead of fiberglass molding for the smaller parts on our boats has resulted in significant time and cost savings for our company. SSI has proven to be a dependable supplier of our plastic parts, consistently offering us the shortest lead times, friendly pricing, and high-quality products.”

— Travis R. Southard • Design Engineer, Chris Craft

Our Partners

Start Your Project with Us

Whether it’s a unique design or a complex project, we have the expertise to bring your vision to life. 
Reach out to us and we’ll get back to you in just 1 business day!