The Tobu Railway Company is listed in the First Section of the Tokyo Stock Exchange and is a constituent of the Nikkei 225 index.

The Tojo Railway was founded in 1911 as a separate company, but shared its president and head office with Tobu.

[3] In 1905, Nezu Kaichirō became the president of Tobu Railway and successfully helped to grow the company to one of the largest private rail operators in the Kanto region.

[4] In 1924, Tobu began operating its first electric train on the Isesaki Line between Asakusa (later Narihirabashi, today Tokyo Skytree Station) and Nishiarai.

[7] Eight new three-car 500 series EMU trains were introduced on limited express services on lines from Asakusa on 21 April 2017.