is a major developer and manufacturer of electron microscopes and other scientific instruments, industrial equipment and medical equipment. Its headquarters are in Tokyo, Japan, with 25 domestic and foreign subsidiaries and associated companies as of 2014. It is listed in the top ten businesses world-wide for analytical laboratory instrument manufacturing. JEOL's instruments are used by researchers around the world, including the University of Cambridge, University of Oxford, and MIT.
For the year ending March 31, 2016, JEOL reported net sales of 107,373 million Japanese yen. JEOL is traded on the Tokyo Stock Exchange. It has been included in the Activest Lux Nanotech Mutual Fund and the WestLB Nanotech Fund.