RJG Certified Tryout Shops

Mauston Tool Corporation

Located in Mauston, Wisconsin they were the first facility to achieve certification in RJG’s certification program. Mauston Tool has completed all the requirements to become an RJG Certified Tryout Shop

Omega Plastics

is an industry leader in high-quality tooling and low-volume molding solutions. Omega is able to design, build, and sample your molds at their in-house facility located in Clinton Township, Michigan.

Extreme Tool & Engineering

of Wakefield, Michigan has completed the requirements to become an RJG Certified Tryout Shop.

P & P Industries

produces world class quality results through Six Sigma methods. Specializing in engineer grade polymers to commodity resins our Team shall produce exceptional results from conception, design, mold trial, and production. P&P is a full service custom injection molder, offering a complete range of value-added services.

Decatur Mold

builds and repairs molds in a full range of sizes and complexity. As a certified facility, Decatur Mold has the tools and knowledge to perform Rigorous Mold Tryouts on every mold that ships to a customer. The processes required to produce approved parts during the tryout are fully documented and shipped with the mold.

PTI Engineered Plastics, Inc.

is a full-service thermoplastic injection molding supplier, providing industry with products for prototype, short run, and low to high volume production. Our “state of the art” tool-room offers highly skilled mold makers, and is equipped with the latest high-speed CNC machining centers.

GW Plastics

specializes in providing complex injection molded plastic solutions. Their commitment to quality, innovation and speed-to-market is why market leaders across the globe trust them to deliver their most challenging new products.


ULTRATECH was established in Hong Kong in 1985. The China plant was started in 1993 and today they have three factories and over 1000 employees. They provide precision mold making, custom molding, and sub-assembly services.