Located in Joliet, Illinois, Mastermolding was founded in 1988. We engineer and produce custom injection mold thermoplastic from engineering grade resins for the OEM and aftermarket industries.

At Mastermolding, Inc., we believe in partnering. Success is achieved when customer requirements, supplier manufacturing, and overall quality are seamless. Mastermolding, Inc. delivers total solution value to leading companies in the global marketplace.

We are passionate about our customers and how they operate. We pride ourselves on meeting the most stringent delivery schedule, anticipating needs, and exceeding expectations.

Mastermolding offers complete plastic manufacturing from design and engineering assistance to molding, project management, planning, and warehousing.

Mastermolding's growth and expansion.

Our upcoming add in American Executive Magazine.

Sales Office Added to Cover Southwest