CHICAGO—Private equity firm CORE Industrial Partners recently announced the acquisition of Hayes Manufacturing Services, Inc., a rapid prototyping manufacturer of precision-machined plastic and metal components, by CORE portfolio company Prototek Sheetmetal Fabrication LLC. Financial terms of the transaction were not disclosed.

Prototek Sheetmetal Fabrication ( is a rapid prototyping service provider of CNC machined and sheet metal fabricated parts and components for a variety of end markets, including aerospace, defense, medical, robotics, electronics, consumer, and general industrial. Headquartered in Contoocook, New Hampshire, Prototek serves a diverse customer base with numerous in-house manufacturing capabilities across two dedicated facilities.

Headquartered in Silicon Valley, Hayes offers rapid prototyping and low-volume precision machining services for a customer base primarily in the medical, aerospace, robotics, and electronics end markets. Founded in 1991, Hayes has nearly three decades of experience working closely with customers to manufacture products meeting the most stringent dimensional and aesthetic requirements, including tolerances as tight as one ten-thousands of an inch. Hayes holds a variety of certifications and compliance designations, including ISO 9001, ITAR, FDA and CDPH.

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