About Us

II-VI Incorporated, a global leader in engineered materials and optoelectronic components, is a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, aerospace & defense, life sciences, semiconductor capital equipment, and consumer markets. Headquartered in Saxonburg, Pennsylvania, the Company has research and development, manufacturing, sales, service, and distribution facilities worldwide. The Company produces a wide variety of application-specific photonic and electronic materials and components, and deploys them in various forms, including integrated with advanced software to support our customers.

Our Name and History  I  TWO SIX

The Roman numerals “II-VI” refers to group II and group VI of the Periodic Table of Elements. By chemically combining elements from these groups, II-VI produced the infrared optical crystalline compounds: Cadmium Telluride (CdTe), Zinc Selenide (ZnSe), Zinc Sulfide (ZnS) and Zinc Sulfide MultiSpectral (ZnS MS). These compounds and others created from group II and group VI elements are commonly referred to as “II-VI Materials”. Founded in 1971 to create CdTe, company co-founder Dr. Carl J. Johnson paid homage to our II-VI Materials heritage by calling our new company “II-VI Incorporated”.

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