Nagano Keiki

Pressure Gauges, Sensors & Measurement Control Equipment · Ota, Tokyo

Nagano Keiki, founded in 1896, develops, manufactures and sells pressure gauges covering ranges from very low to ultra-high pressure, and reports more than 60% of the Japanese market by sales. Since 1983 it has also made pressure sensors that convert the pressure of gases and liquids into electrical signals for monitoring and control systems.

Its measurement-control business develops equipment that generates precise reference pressures for inspecting and calibrating gauges and sensors, along with pneumatic equipment and leak testers. A die-casting business designs moulds and makes aluminium die-cast products. As of March 31, 2026, the group had 2,390 consolidated employees, with its head office in Ota, Tokyo.