Hellma GmbH & Co. KG

 , DE Manufacturer
Scintillation Crystals: CeBr3, CaF2:Eu, BaF2, LBC. Optical materials: CaF2, BaF2, CVD ZnSe and ZnS, Yb3+:CaF2. Optical glass and components. Laboratory supplies.

Taizhou ATS Optical Material Co., Ltd,

 , CN Manufacturer
Evaporation materials, infrared laser materials (ZnSe wafers, ZnS crystals and granules)

JSC Macrooptica

 , RU Manufacturer
ZnSe, ZnS, Ge, Si crystal growing. Optical parts and elements.

SPC Vavilov State Optical Institute, Vavilov GOI

 , RU Manufacturer
Optical glass, optical and laser crystals. Optical fibers and quartz capillaries. Quartz and scintillation ceramics.

Saint-Gobain Crystals

 , FR Manufacturer
Sapphire, garnets, X-ray crystals. Radiation detection crystals and technology.