![]() Corning Specialty Materials Corning Specialty Materials is a company that manufactures products that provide material formulations for glass, glass ceramics, and fluoride crystals. | ![]() Sonoma Photonics Sonoma Photonics Inc. (SPI) is a company that provides advanced thin film technologies and products for mission-critical applications. | ![]() Twinstar Optics, Coatings & Crystals Twinstar Optics, Coatings & Crystals is a company that manufactures precision optics and coatings products. | ![]() Heraeus Quartz North America Heraeus Quartz North America (formerly known as Heraeus Tenevo) is a company that specializes in the production and processing of quartz glass for optical applications. | ||
Founding Date | Founding Date 2000 | Founding Date 2000 | Founding Date 1997 | Founding Date 1966 | Founding Date 2001 |
Type | Type Subsidiary | Type Subsidiary | Type Private | Type Subsidiary | Type Public |
Tags | |||||
Locations | Locations Keene, US HQ | Locations Santa Rosa, US HQ | Locations Port Richey, US HQ | Locations Buford, US HQ Chandler, US | Locations Suqian, CN HQ |
Employees | Employees 298 | Employees 50 | Employees 50 | Employees 140 | Employees 2,147 |

Sonoma Photonics Inc. (SPI) is a company that provides advanced thin film technologies and products for mission-critical applications.
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Twinstar Optics, Coatings & Crystals is a company that manufactures precision optics and coatings products.
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Heraeus Quartz North America (formerly known as Heraeus Tenevo) is a company that specializes in the production and processing of quartz glass for optical applications.
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Jiangsu Xiuqiang Glasswork (江苏秀强玻璃工艺股份有限公司) is a manufacturer of glass.
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