Meidensha Corporation (株式会社明電舎, Kabushiki Kaisha Meidensha) is a Japanese, Tokyo-based company, engaged in the manufacturing and selling of water treatment equipment, electronic equipment, and information equipment.

It is listed on the Tokyo Stock Exchange and is a constituent of the Nikkei 225.

[4] The company was established by Hosui Shigemune for the manufacture of electric motors in Kyobashi, Tokyo.

The company operates in four business segments:

This article about a Japanese corporation- or company-related topic is a stub.