or Tokyo Subway is a third-sector organization with funding from the government of Tokyo

Tokyo

, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...

 and others. In Japanese

Japanese language

is a language spoken by over 130 million people in Japan and in Japanese emigrant communities. It is a member of the Japonic language family, which has a number of proposed relationships with other languages, none of which has gained wide acceptance among historical linguists .Japanese is an...

, its name is often shortened to . It was established on July 28, 1988 for projects related to the construction of the Toei Oedo Line

Toei Oedo Line

The is a subway line in Tokyo, Japan operated by the Tokyo Metropolitan Bureau of Transportation . It commenced full operations on December 12, 2000; using the Japanese calendar this reads "12/12/12" as the year 2000 equals Heisei 12...

. It was capitalized at 3 billion yen

Japanese yen

The is the official currency of Japan. It is the third most traded currency in the foreign exchange market after the United States dollar and the euro. It is also widely used as a reserve currency after the U.S. dollar, the euro and the pound sterling...

, including 2 billion from the government of Tokyo.

In 2004, it reported debts exceeding 527 billion yen.