ZAO "Rostoks-N" is one of the leading Russian and world manufacturers of synthetic sapphire. The company was founded and has been operating on the international market since 1993. The main activity is growing single crystals of refractory oxides from a melt using Stepanov (EFG), kiropoulos and Chokhralsky methods, as well as developing equipment and technologies for growing single crystals and vacuum technology. Currently ZAO "Rostoks-N" is a stably working and developing scientific-industrial enterprise with full production cycle from crystal growth to production of the final products with a finishing. The company employs more than 50 highly qualified specialists in the field of crystal growth and processing, including 3 candidates and a doctor of technical Sciences. The equipment fleet includes 20 growth machines, including new-generation Nika-Profil installations and more than 50 units of processing machines. The main products are products made of synthetic sapphire, quartz, and ceramics, delivered to 25 countries located in South and North America, Europe, and Asia. In cooperation with the Institute of solid state physics of the Russian Academy of Sciences and the Federal state enterprise Experimental plant of scientific instrumentation with The special design Bureau of the Russian Academy of Sciences (FSUE EZAN) our company is constantly engaged in improving technologies for growing single crystals, as well as developing new equipment for growing single crystals. Rostocks-N is located in the research Center of the Russian Academy of Sciences in Chernogolovka, 50 kilometers northeast of Moscow.