Japan Football Association (JFA). Link: https://www.jfa.jp/

Japan Racing Association (JRA). Link: https://www.jra.go.jp/

Japan Chess Federation. Link: https://japanchess.org/en/top/

Meguro Football Association. Link: https://meguro-soccer.com/futsal/

Seisen University. Link: https://www.seisen-u.ac.jp/eng/

GOROM Association. Link: https://gorom.org/en/

National Institute of Polar Research (NIPR). Link: https://www.nipr.ac.jp/

Sakai Town Municipality, Ibaraki Prefecture. Link: https://www.town.ibaraki-sakai.lg.jp/

Nippon–Argentina Association. Link: http://www.argentina.jp/