Nabtesco manufactures precision reducers and motion-control components used in industrial robot joints and other robotic actuation systems.
Nabtesco is a Japanese precision-reducer maker (~$1.3B group revenue) supplying RV reducers for large and mid robot joints, with a share estimated at 35-60% depending on scope definition, and it supplies nearly every major robot OEM. It is doubling its RV reducer production capacity by 2026 citing humanoid demand, with its precision segment up JPY 4.8bn in Q1-26 on auto and semiconductor recovery. It is a components-scale incumbent in the motion supply chain.
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Nabtesco manufactures precision reducers and motion-control components used in industrial robot joints and other robotic actuation systems. Nabtesco is a Japanese precision-reducer maker (~$1.3B group revenue) supplying RV reducers for large and mid robot joints, with a share estimated at 35-60% depending on scope definition, and it supplies nearly every major robot OEM. It is doubling its RV reducer production capacity by 2026 citing humanoid demand, with its precision segment up JPY 4.8bn in Q1-26 on auto and semiconductor recovery.
Nabtesco ranks 27 of 100 on the Robotics 100 (November 2026 edition) with a score of 86 out of 100, in Actuation (Components). Assessment by Frontier Tech Intelligence.
SMC (rank 15), Physik Instrumente (rank 20), Harmonic Drive Systems (rank 43), SPINEA (rank 95).
Nabtesco is based in Tokyo, Tokyo, Japan. Stage: Established.
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