Nabtesco (ナブテスコ株式会社, Nabutesuko Kabushiki-gaisha) is a Japanese engineering company that specializes in gearboxes, rotors, motors and robotics.

The company was founded in 2003 and has several subsidiaries.

[4] In 2010, the company acquired the Business Segment Door Automation division of the Swiss company Dormakaba.

[5] Since 2017, Kazuaki Kotani has served as chairman and Katsuhiro Teramoto has served as president of Nabtesco.

[5] The company manufactures cycloidal drives, railway brakes and platform screen doors.