About Us

World-class harness testers

We provide you the best solution to contribute the safety of society.

Nac Corporation has long been a leader in the industry as a manufacturer of harness testers. We have the top market share in Japan and have been highly evaluated in China and around the world. Aerospace field requiring high voltage testing. Construction machinery and railway fields that require multipoint inspection. High-level moment disconnection testing is increasingly needed in the future automotive field. We offer a variety of solutions for all industries related to harness cables and connectors.