Keio University (慶應義塾大学, Keiō Gijuku Daigaku), abbreviated as Keio (慶應) or Keidai (慶大), is a private research university located in Minato, Tokyo, Japan.

Kyoto University (京都大学, Kyōto daigaku), or KyotoU (京大, Kyōdai), is a public research university located in Kyoto, Japan, founded in 1897.

Waseda University (早稲田大学, Waseda Daigaku), abbreviated as Sōdai (早大), is a private research university in Shinjuku, Tokyo, founded in 1882.

The University of Tokyo (東京大学, Tōkyō daigaku), abbreviated as Todai (東大, Tōdai) or UTokyo, is a public research university located in Bunkyō, Tokyo, Japan.