Materion Corp. engages in the production of engineered materials used in a variety of electrical, electronic, thermal, and structural applications. It operates through the following segments: Performance Materials, Electronic Materials, Precision Optics, and Other. The Performance Materials segment provides engineered solutions consisting of beryllium and non-beryllium. The Electronic Materials segment produces chemicals, microelectronics packaging, precious metal, non-precious metal, and specialty metal products. The Precision Optics segment designs and produces precision thin film coatings, optical filters, and assemblies. The Other segment includes unallocated corporate costs and assets. The company was founded in 1931 and is headquartered in Mayfield Heights, OH.

TriMas Corp. engages in the manufacture of industrial products for customers in the consumer products, aerospace, industrial, petrochemical, refinery, and oil and gas end markets. It operates through the following segments: Packaging and Specialty Products. The Packaging segment develops and manufactures dispensing products, polymeric and steel caps and closures, polymeric jar products, and fully integrated dispensers for fill-ready bag-in-box applications, beauty and personal care, home care, food and beverage, and pharmaceutical and nutraceutical products. The Specialty Products segment focuses on designing, manufacturing, and distribution of highly-engineered steel cylinders for use within industrial and aerospace markets. The company was founded by Brian P. Campbell in 1986 and is headquartered in Bloomfield Hills, MI.

Park-Ohio Holdings Corp. provides supply chain logistics services and manufactures aluminum products. It operates through the following business segments: Supply Technologies, Assembly Components, and Engineered Products. The Supply Technologies segment provides customers with total supply management services for a broad range of high volume, specialty production components. The Assembly Components segment manufactures cast aluminum components, automotive and industrial rubber and thermoplastic products, fuel filler and hydraulic assemblies for automotive, agricultural equipment, construction equipment, heavy duty truck and marine equipment industries. It also provides value-added services such as design and engineering, machining and assembly. The Engineered Products segment operates a diverse group of niche manufacturing businesses that design and manufacture a broad range of high quality products engineered for specific customer applications. The company was founded in 1907 and is headquartered in Cleveland, OH.