Istok State Scientific Production (Russian: Научно-производственное предприятие «Исток») is a company (scientific production association) based in Fryazino, Russia. It is part of the Ruselectronics group.^[1]

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Istok is a major producer of electronic components for space and military use, including magnetrons, klystrons, high-powered vacuum tubes, carbon dioxide lasers, electro-optical devices. It has also developed and manufactured consumer products for the national economy since the 1960s.^[2]

For 2020, the company implemented the IIoT.ISTOK Industrial Internet of Things system, which monitors technical processes^[3][4][5]