The Saitama Broncos (さいたまブロンコス, Saitama Buronkosu) is a men's professional basketball club based in Tokorozawa, Saitama Prefecture, Japan. It calls the whole prefecture home and its main home arenas are Tokorozawa Municipal Gymnasium and Saitama Super Arena in Chūō-ku, Saitama City. It competes in the B.League.
1991: Club renamed to "Ẽfini Tokyo" (アンフィニ東京, Anfini Tōkyō)
1996: The company club was dissolved.
1997: Restarts as a community-based club "ME Tokorozawa Broncos" (ME所沢ブロンコス, Emu-ī Tokorozawa Buronkos). From a lower-tier "Kantō Corporate League" (関東実業団リーグ, Kantō Zitsugyō-dan Rīgu).
1998: Renamed "Tokorozawa Broncos" (所沢ブロンコス, Tokorozawa Buronkos). Promoted to the JBL division 2.
1999: The league reorganisation put the team to the new JBL.
2000: Adds Saitama City to its hometowns. Renamed hiragana "Saitama Broncos" (さいたまブロンコス, Saitama Buronkosu).
2002-03, 2004-05: Wins the premiership in two-peat.
2005: Quits the JBL. Renamed kanji "Saitama Broncos" (埼玉ブロンコス, Saitama Buronkosu). Competes in the bj league as an inaugural member.