Century Mold Co., Inc

Employee size

1,001-5,000

Organization type

Privately Held

Headquarters

Middletown, OH

Founded

1978

Established in Rochester in 1978, Century Mold has grown from its headquarters into a North American plastics manufacturer with six production facilities and more than 50 engineers, designers and mold builders. The company is known for supporting demanding automotive, defense and industrial programs through precision plastic molding, including components used in more than 80% of vehicles on U.S. roads. Its IATF-16949 and ISO 9001:2015 certifications reflect the quality systems behind that work.

• Empire Precision PlasticsFounded in 1992, Empire Precision Plastics is a Rochester-based contract manufacturer of close-tolerance plastic parts, developing programs from tooling and prototypes through scientific injection molding and assembly. Its almost 70,000-square-foot facility combines an in-house tool room with highly automated molding and controlled-environment capabilities, including specialized work in medical devices and polymer optics. Empire is certified to ISO 9001:2015 and ISO 13485:2016, and has completed more than 1,000 injection-mold tooling transfer programs.ROCHESTER, NY
• OP
  Ontario Plastics of NY, IncFounded in Rochester in 1945 with a first molding job making clothespins, Ontario Plastics of NY is a custom plastic injection molder serving customers in fields ranging from medical products to aerospace and defense. The company grew through three generations of Hayes family ownership before transitioning to a fourth-generation owner in 2024, and it remains known for combining in-house engineering, tooling, and production support with a practical “save the day” approach to customer needs. Ontario Plastics has held ISO 9001 certification since 2001 and was recertified to ISO 9001:2015 in 2016.ROCHESTER, NY
• Tetra Mold & Tool, IncFounded by Ronald and Mrs. Ronald L. Hughes in 1968, Tetra Mold & Tool is a long-established plastics manufacturer that has grown around in-house technical expertise. The company develops precision molds and plastic injection-molded parts, carrying projects from early prototypes into production for customers in fields including automotive, aerospace and medical care. Tetra’s quality system is certified to IATF 16949:2016.NEW CARLISLE, OH
• Mold-A-Matic Corp. (MAMCO Precision Molding)Founded in 1964, Mold-A-Matic Corp. operates as MAMCO Precision Molding, a long-established American plastics manufacturer serving customers with demanding engineering requirements. Its more than 40,000-square-foot facility has built 1,904 molds and supports custom work for sectors such as medical devices and aerospace, while the company is also exploring hemp-based plastics.ONEONTA, NY