Founded in 1901, Sigmund Cohn Corp. is a century-old precious-metals manufacturer whose heritage began with its founder, Sigmund Cohn, and continues under President Thomas Cohn. The Mount Vernon company is known for developing specialized metal materials with customers, including early suppliers of platinum alloys for implantable medical devices, while its ISO 9001:2015 system supports work for demanding technology and industrial applications.
ISO 9001:2015
The Shepherd Chemical CompanyFounded in 1916 by Lee Shepherd, The Shepherd Chemical Company develops and manufactures metal-based specialty chemistry, working with customers from initial concept through commercial production. Still shaped by fifth-generation Shepherd family members, the Norwood-based company has spent more than a century turning metal chemistry into solutions used in technologies ranging from airbag safety to sustainable industrial processes. Shepherd holds ISO 9001:2015 certification and participates in the American Chemistry Council’s Responsible Care® Management System.CINCINNATI, OH
Deringer-Ney IncKnown for developing precious-metal materials for demanding applications, Deringer-Ney Inc. makes custom alloys and precision components for manufacturers in fields such as medical devices and automotive systems. Its materials appear in millions of devices worldwide, while its quality system carries ISO 9001, ISO 13485 and IATF 16949 certifications.BIRDSBORO, PA
MetalTek InternationalMetalTek International is a metal manufacturing group whose operating companies trace their roots to the 1890s and came together under the MetalTek name in 1999. Its long history is paired with a notably deep technical bench of more than 100 metallurgists and engineers, supporting critical components for industries where heat, wear, or corrosion can make failure costly.SANDUSKY, OH
Metallurgical Products CompanyIn business since 1909, Metallurgical Products Company melts copper-base master alloys, phosphor copper, phosphor nickel and specialty metals for the copper and brass melting industry. Based in West Chester, Pennsylvania, the company uses electric furnaces and custom production capabilities to supply application-specific materials, with every lot identified by melt number and accompanied by a certified melt analysis. Its quality system is ISO 9001:2015 certified, and its operations incorporate pollution controls and documented environmental safeguards.WEST CHESTER, PA