With roots in 1895 and a mold-making legacy dating to 1938, Dynaform Technologies’ Pottstown Division is a long-established American manufacturer serving secondary smelters and die casters around the world. The company is known for turning customer requirements into custom molds and related cast metal work, from individual pieces to production runs, with projects managed from design through delivery.
Diversified Mold & CastingsSince 1939, family-owned Diversified Mold & Castings has built tooling and castings for the plastics and foundry industries, with a particular depth in rotational molds and thermoform tooling. The Warrensville Heights company employs more than 45 people, including many with over 20 years in the industry, and is also the oldest producer of aluminum match plates in the United States. Its capabilities span work from prototypes and mold repairs to large CNC-machined tooling, supported by a history that began as Plaster Process and evolved into today’s Diversified Mold & Castings through three generations of the Costello family.WARRENSVILLE HEIGHTS, OH
Pennant Moldings, IncFounded in 1967, Pennant Moldings is a multi-plant American manufacturer known for solving demanding metal-forming challenges for industrial customers. Its engineering-led team supports programs from design through production, with particular strength in high-volume stamping and complex components for sectors such as automotive, appliances, and data-center infrastructure.COLUMBUS, OH
Caldwell Casting CompanySince 1948, Cambridge, Maryland-based Caldwell Casting Company has made aluminum and zinc die-cast components for industrial, commercial, and Department of Defense customers. The U.S. manufacturer supports programs from engineering and steel tool design through production, using hot- and cold-chamber processes to produce close-tolerance parts. Its established domestic operation is built around consistent results and long-term customer partnerships.CAMBRIDGE, MD
Keystone Forging CompanyFounded in 1893, Keystone Forging Company is a Pennsylvania manufacturer of closed-die forgings, continuing a local blacksmithing tradition that predates its founding. It produces custom forged parts and provides in-house tooling design and secondary operations, serving customers across a broad range of industries.NORTHUMBERLAND, PA