Why Us?
All tooling is created in-house, & we can run plastic parts from hundreds to hundreds of thousands.
Quality Policy
Customer satisfaction is our first priority with better communication and total transparency.

Welcome to Proto Part Inc.

Proto Part manufactures thermoplastic injection molded parts of only the finest quality. The company is located in the heart of New England, and serves a wide variety of commercial, industrial and specialty industries throughout the Northeast.

For more twenty-five years, we have built our reputation by committing to a simple concept – complete customer satisfaction. In this challenging manufacturing environment, companies of all sizes are building success with the help of Proto Part. We respond to customer needs by providing creative, economical, and quick solutions.