Founded in 1915 and acquired by the Neuman family in 1968, Toledo’s Maumee Pattern Company designs and manufactures foundry tooling for complex castings. The company combines more than a century of patternmaking experience with modern CAD/CAM design, CNC machining, and reverse-engineering capabilities, and supports customers with nationwide tooling service. Maumee Pattern is ITAR certified and aligns its cybersecurity program with CMMC Level 2 requirements for defense-related and other sensitive work.
ITAR Certified
CMMC Level 2 Requirements Alignment
Compliance program
Cascade PatternCascade Pattern is an Elyria, Ohio foundry-tooling maker with 48 years of experience and a workforce spanning several generations. From its 65,000-square-foot facility, the company builds custom patterns and core boxes to fit customers’ molding lines and production needs.ELYRIA, OH
Lorain Modern Pattern, IncFor more than three decades, Lorain Modern Pattern, Inc. has built custom patterns, prototypes, models and production masters in Elyria, blending traditional journeyman patternmaking with CNC machining and modern CAD/CAM tools. Its work ranges from foundry and molding tooling to low-volume parts and reverse-engineered replacements, including simulation models made for NASA’s John Glenn Space Research Center. The company says its craftsmanship and customer relationships have earned it a strong reputation across two generations.ELYRIA, 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
Seilkop Industries, IncFounded in 1946, Seilkop Industries, Inc. brings foundry tooling and metal manufacturing projects from design through prototype, production, and finishing under one roof. Its three operating divisions combine aluminum sand casting, CNC pattern and mold work, and specialized grinding and equipment services, giving the Cincinnati company an unusually integrated manufacturing operation.CINCINNATI, OH