Edro-Sturdell manufactures precision custom mold bases and supplies tooling materials, with machining operations supporting plastics tooling and aerospace work. Its Walnut facility is identified as an AS9100 Rev D and ISO 9001:2015 certified manufacturing operation; the company also describes steel processing and distribution facilities in the United States and Germany.
AS9100 Rev D
ISO 9001:2015
Momentous Mold & MachineMomentous Mold & Machine traces its roots to Karl A. Reuther’s 1950 family business in Cuyahoga Falls, where it first became known for rubber molding before moving into demanding aerospace work. Purchased in 2025 by a Northeast Ohio management team, the company now brings that long manufacturing history to custom tooling for aerospace and related high-consequence applications. Its 60,000-square-foot temperature-controlled shop is supported by AS9100D:2016 with Design and ISO 9001:2015 with Design certifications.CUYAHOGA FALLS, OH
Rhinestahl CorporationWhat began in 1967 as a two-car-garage tool shop has become Rhinestahl Corporation, a Mason-based manufacturer of aircraft engine tooling and complex precision assemblies. Its Customer Tooling Solutions division supplies OEM-aligned engine tooling, while its Advanced Manufacturing Group handles demanding machining, fabrication, and capital-equipment assembly for aerospace and other industries. Rhinestahl’s manufacturing operations include a 125,000-square-foot Mason facility, and its AMG division holds AS9100D/ISO 9001 and ITAR certifications.MASON, OH
Ellwood Specialty Metals - USAEllwood Specialty Metals–USA draws on a 100-plus-year tradition of technical knowledge to serve the tool, mold and die industries from its New Castle, Pennsylvania facility. The company produces specialty tool steels and carries them through forging, heat treatment and machining, with manufacturing conducted to ISO 9001 standards.NEW CASTLE, PA
Eagle Mold Co., IncFounded by Wilbur Wisecup in his home garage in 1984, family-owned Eagle Mold Co., Inc. designs and builds precision plastic injection molds and supplies close-tolerance machining and EDM work from Carlisle, Ohio. The company has grown into two facilities totaling 58,500 square feet while continuing to serve demanding automotive, aerospace, and medical applications nationwide. Eagle Mold has maintained ISO 9001:2015 certification and has supplied tooling for 40 years.CARLISLE, OH