Companies catalogue
- YGC Yotsuya Golf Club, Shinjuku-ku
- Yachimata General Hospital, Yachimata-shi
- Yahashira Golf Club, Matsudo-shi
- Yamada Memorial Hospital, Sumida-ku
- Yanagihara Hospital, Adachi
- Yanaka Elementary School, Taitō-ku
- Yashio Central General Hospital, Yashio-shi
- Yasuda Hospital, Ōta-ku
- Yatsu Hoken Hospital, Narashino-shi
- Yatsuka Garden Green Golf, Sōka-shi
- Yims Tokyokatsushika Total Clinics, Katsushika-ku
- Yokoseki Clinic, Matsudo-shi
- Yokoshibahikari Choritsu Nanjo Elementary School, Yokoshibahikari-machi
- Yoshida Clinic, Mobara-shi
- Yoshihara Clinic, Chiba-shi
- Yoshikawa Golf Club, Yoshikawa-shi
- Yoshikawa Municipal Minami Elementary School, Yoshikawa-shi
- Yoshikawa Shiritsu Kitaya Elementary School, Yoshikawa-shi
- Yoshikawashi Ritsusakae Elementary School, Yoshikawa-shi
- Yoshikawashi Ritsuseki Elementary School, Yoshikawa-shi
- Yutaka Elementary School, Kashiwa-shi
- Yūai Hospital, Adachi-ku