Tokyo Keiki Inc.
130-year-old Tokyo precision-instrument maker spanning marine gyrocompasses to counter-drone detection, about 1,700 employees group-wide.
TOKYO KEIKI INC. is a Japanese precision-instrument and industrial-electronics manufacturer headquartered at Haneda Innovation City in Ota-ku, Tokyo, tracing its history back to its founding on May 1, 1896, making it roughly 130 years old. Formerly known internationally as TOKIMEC, the company today operates across ten business segments: Marine Systems, Fluid Power & Control, Measurement Systems, Defense, Maritime Traffic Systems, Sensors, Construction Systems, RF Components, Inspection Systems, and Railway Maintenance. It is led by Representative Director, President & CEO Tsuyoshi Ando, and reports paid-in capital of 7,218 million yen and a consolidated group headcount of approximately 1,700 employees.
In Marine Systems, Tokyo Keiki manufactures gyrocompasses, autopilots and Electronic Chart Display and Information Systems (ECDIS) used on commercial and naval vessels, a product line with roots in the company's original gyroscope and precision-instrument business. Its Fluid Power & Control segment produces hydraulic pumps, motors and valves for construction and industrial machinery. The Measurement Systems segment covers ultrasonic flowmeters and radar level gauges used in process industries such as oil, gas, chemicals and water treatment. The Inspection Systems segment supplies web and printing inspection equipment for continuous manufacturing lines, while the Railway Maintenance segment produces ultrasonic rail-flaw detection systems used to find internal defects in railway track.
The company's Defense segment supplies electro-optical and stabilization systems to defense customers, building on the same precision-gyroscope and sensor expertise used in its marine autopilot products. According to industry reporting, Tokyo Keiki has been developing counter-drone detection technology, extending its long-standing radar and sensor businesses into the growing counter-UAV market as militaries and infrastructure operators seek to detect and track small unmanned aircraft.
Tokyo Keiki's stated corporate mission is to contribute to society with a focus on leveraging electronics and other advanced technology to create products that embody functions of human senses, measurement, cognition, and control, a philosophy reflected across its diversified sensor, instrumentation and control-systems portfolio. The company relocated its head office to Haneda Innovation City, Zone-B, in February 2026. It can be reached at +81-3-3732-2111 or through inquiry forms on its website. No public information was found on the company's exact stock-exchange listing details, revenue figures, or specific counter-drone product names within the material reviewed; these would require confirmation through the company's investor-relations disclosures.
Primary type & automation activities this supplier delivers:
Fiber Optic Gyrocompass for Tunnel TMG-32FW Series
Solid-state fiber-optic gyrocompass with no moving parts, providing real-time azimuth, pitch and roll data for tunnel shield and pipe-jacking machines.
Fiber Optic Gyrocompass TF-900
Fiber-optic marine gyrocompass with no moving parts in the sensor unit and a settling time under 30 minutes, compatible with legacy TG-series systems.
Gyrocompass TG-8100/8600
Marine gyrocompass series with the TG-8600 variant rated for high-speed craft up to 70 knots; successor to a TG model with about 27,000 installations.
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Contact Tokyo Keiki Inc.
WEBSITE
https://www.tokyokeiki.jp/e/PHONE
+81-3-3732-2111HEADQUARTERS
Japan
Company Facts
Founded
1896
Primary Role
Manufacturer
Company Size
employees 1000-2000
Primary Region
Asia-Pacific
Annual Sales
-
Funding Stage
-
Funding Total
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Keywords
