Founded in 1990 by Walter Kuskowski, Wentworth Technologies has grown from a single acquired mold company into a family-owned group that makes plastics-processing products and the molds and tooling behind them. Its 18 facilities operate across Europe and North America, including 12 manufacturing sites in Canada, the United States and Poland. The company’s distinctive reach spans both finished packaging and the specialized tooling used to produce it, while Kuskowski’s family continues the business after his passing in 2023.
WEMCO Precision ToolFounded by William Miller in 1977, family-owned WEMCO Precision Tool makes contract precision tooling in Meadville, Pennsylvania, including plastic injection molds, dies and prototype components. The company draws on Bill Miller’s lifelong toolmaking background and Ronald Miller’s more than 45 years in the trade, giving its work a distinctly hands-on, family-run character. WEMCO serves manufacturers across fields such as automotive, electronics and medical products.MEADVILLE, PA
Moore Industries, IncFounded by Mike Moore in 1999 after he bought back his original plant, Moore Industries is a family business now entering its second generation, with three of his daughters involved in daily operations and future ownership. The Northwest Ohio company has grown from four machines in a 4,000-square-foot facility to an 84,000-square-foot operation serving OEM customers with custom plastic injection molding.MONTPELIER, OH
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
The Plastek GroupThe Plastek Group manufactures rigid plastic packaging and tooling, with operations rooted in Erie, Pennsylvania, where it was founded in 1956 as a division of Triangle Tool Company. The family-owned business has grown into an international manufacturer with six locations in the United States, United Kingdom, Brazil, and Mexico. Its integrated work spans mold design and manufacturing through plastic molding and packaging assembly.ERIE, PA