![]() Henan Costar Group Henan Costar Group (also known as Henan Zhongguang Group, 河南中光学集团有限公司) is a photonics company. | ![]() Sydor Optics Sydor Optics is a manufacturer of high-precision flat optical components for industries such as defense, aerospace, semiconductor, and medical. | ![]() QED Technologies QED Technologies International is a company that develops magnetorheological finishing (MRF) and stitching interferometry (SSI) metrology manufacturing solutions. | ![]() Precision Electronic Glass Precision Electronic Glass is a company that delivers glass and quartz products and services. | |
Founding Date | Founding Date 1968 | Founding Date 1964 | Founding Date 1996 | Founding Date 1962 |
Type | Type Subsidiary | Type Private | Type Private | Type Private |
Tags | ||||
Locations | Locations Nanyang, CN HQ | Locations Rochester, US HQ | Locations Rochester, US HQ Delft, NL | Locations Vineland, US HQ |
Employees | Employees 3,649 | Employees 542% increase | Employees 12810% increase | Employees 14 |
Operating ⚠ | ||||
Certifications | Certifications N/A | Certifications 7 (Oct, 2022) | Certifications N/A | Certifications 1 (Dec, 2021) |

Sydor Optics is a manufacturer of high-precision flat optical components for industries such as defense, aerospace, semiconductor, and medical.
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QED Technologies International is a company that develops magnetorheological finishing (MRF) and stitching interferometry (SSI) metrology manufacturing solutions.
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Precision Electronic Glass is a company that delivers glass and quartz products and services.
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