Thunderbird Molding, a legacy of plastic injection molding excellence

Thunderbird Plastic Molding history


The continuing legacy of plastic injection molding excellence

Supporting the custom plastic injection molding industry and our customers is the heart of the Thunderbird Molding story. We bring decades of experience to each project. In an industry that continues to rapidly evolve, so do we. We have invested in our technologies and have grown as a leader, innovator, and global choice in the industry.

Combined plastic molding expertise

Combined expertise supports a booming industry

Through organic growth and strategic acquisition, we have grown exponentially and elevated our reputation in the custom plastic injection molding industry. What began as two family-run companies—Williams Plastics and Indiana Plastics—uniting as one powerhouse in plastics has become a nationwide business with a worldwide impact.

In 2022, our evolution accelerated with the acquisition of Molded Plastics Research of Elgin, Illinois. Founded in 1970, MPR built a powerful reputation for high-precision, intricate injection-molded parts and assemblies.

Then, Bright Plastics of Greensboro, North Carolina, joined our family of companies, bringing expanded capabilities, including clean-room molding, large-press molding, and innovative supply chain solutions.

Customer relationships in plastic molding

We value long–standing relationships

Through trust-based relationships with long-standing and new customers, we develop programs specific to the needs of each industry and project. For decades we have been a problem-solving resource for molding and tooling. We put our all into a uniquely rigorous approach that ensures the parts we supply are the most economical to produce and will reliably perform in the marketplace.

Plastic molding made in America

Made in America, made for the world

Five respected entrepreneurial companies have evolved into global players in the custom plastic injection molding industry. Now united and keenly focused as Thunderbird Molding, we offer the strength and capacity of multiple locations, a much broader range of capabilities, and are proud to be a Thunderbird company.

As part of the Thunderbird group of companies, we are building on our storied history with enhanced capabilities and capacity to better serve our loyal customers. We are writing a new chapter of American manufacturing—one that promises more success for our loyal clients for years to come.

[performance under pressure]