Chuo University (中央大学, Chūō Daigaku, lit. central university), commonly referred to as Chuo (中央) or Chu-Dai (中大), is a private flagship research university in Tokyo, Japan.

Sophia University, also known by its Japanese name 上智大学 (Jōchi Daigaku), is a private research university in Japan.

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.

Tokyo University of Science (東京理科大学, Tōkyō Rika Daigaku), formerly "Science University of Tokyo" or TUS

International Christian University (国際基督教大学, Kokusai Kirisutokyō Daigaku, ICU) is a non-denominational private university located in Mitaka, Tokyo, Japan.

Rikkyo University (立教大学, Rikkyō daigaku), also known as Saint Paul's University, is a private university, in Ikebukuro, Tokyo, Japan.