Elevating performance and style


Why prototype composites?

Leading the Industry in Quality and Service

Our commitment to our customers’ success shines through in everything we do—from our fast turnaround times to highly personalized, responsive service. We meticulously source the best materials available and follow a rigorous quality control process to ensure flawless, zero porosity carbon fiber every time. You can count on Prototype Composites to exceed your standards for looks and performance and take pride in knowing that our products are made in the U.S.A.


contact us

We're happy to answer questions or help you with your project. 


Prototype Composites

6677 N. Sidney Place

Milwaukee, WI 53209

(414) 354-5144

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Prototype Composites has done several small and large projects on our vehicles. They are always incredibly professional and accommodating.
— Doug
People have been complimenting my car nonstop since Prototype Composites created components for it it three years ago. Everything’s still got that new sheen and their work is just awesome.
— Craig
We’ve been hiring Prototype Composites to create components for the past 10 years. There’s nothing Prototype Composites can’t do.
— Daryl



From each customer conversation to every product we sell, we are committed to delivering excellence. We strive to be more than just a vendor—acting as your partner in bringing your most innovative projects to life. Let’s elevate your business and products, together.



About Us

we're committed to delivering

Prototype Composites is a wholesale distributor of composite materials located in Milwaukee, Wisconsin. We offer a complete line of products and accessories to meet all the composite needs of the marine and automotive communities. Specializing in carbon fiber, fiberglass and KEVLAR® woven fabrics as well as high-performance epoxy and polyester resins.