About RION

About Us

RION logo

RION CO., LTD. is a precision equipment manufacturer located in Tokyo. We are listed on the Prime Market of the Tokyo Stock Exchange, the highest level in Japan.

We are developing three divisions.

  1. Environmental measurement instrument, which handles instrument that measures and analyzes sound and vibration.
  2. Medical equipment, which handles hearing aids and audiological equipment for otolaryngology.
  3. Particle counter, which measures the cleanliness of manufacturing area for semiconductors and pharmaceuticals.

We boast a high market share in all of our businesses in Japan due to our high technological and service capabilities.

We have a variety of customers: government offices, research institutes, production lines and research and development departments of various manufacturing industries, individual customers etc. RION CO., LTD. has eight group companies (five domestic and three overseas) and sales offices in the United States, Europe, China, and Southeast Asia, as well as a distributor network in approximately 60 countries around the world. 

Corporate Outline

Name RION CO., LTD.
Head Office 3-20-41 Higashimotomachi, Kokubunji, Tokyo 185-8533, Japan
President & CEO Kiyokatsu Iwahashi
Founded June 21, 1944
Stock Market Prime Market of Tokyo Stock Exchange
Employees 1,026 (March 31, 2024/Consolidated)

  

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