Current list of champions.
UFC
Heavyweight: Cain Velasquez
Light Heavyweight: Jon Jones
Middleweight: Anderson Silva
Welterweight: Georges St-Pierre
Lightweight: Benson Henderson
Featherweight: Jose Aldo
Bantamweight: Dominick Cruz, Renan Barao (Interim)
Women's BW: Ronda Rousey
BELLATOR FC
Heavyweight: Alexander Volkov
Light Heavyweight: Attila Vegh
Middleweight: Alexander Shlemenko
Welterweight: Ben Askren
Lightweight: Michael Chandler
Featherweight: Pat Curran
Bantamweight: Eduardo Dantas
Women's 115 lb.s: Zoila Gurgel
ONE FC
Lightweight: Kotetsu Boku
Featherweight: Honorio Banario
Bantamweight: Soo Chul Kim
Others: Vacant
DREAM
Welterweight: Marius Zaromskis
Lightweight: Shinya Aoki
Featherweight: Hiroyuki Takaya
Bantamweight: Bibiano Fernandes
Others: Vacant
UFC
Heavyweight: Cain Velasquez
Light Heavyweight: Jon Jones
Middleweight: Anderson Silva
Welterweight: Georges St-Pierre
Lightweight: Benson Henderson
Featherweight: Jose Aldo
Bantamweight: Dominick Cruz, Renan Barao (Interim)
Women's BW: Ronda Rousey
BELLATOR FC
Heavyweight: Alexander Volkov
Light Heavyweight: Attila Vegh
Middleweight: Alexander Shlemenko
Welterweight: Ben Askren
Lightweight: Michael Chandler
Featherweight: Pat Curran
Bantamweight: Eduardo Dantas
Women's 115 lb.s: Zoila Gurgel
ONE FC
Lightweight: Kotetsu Boku
Featherweight: Honorio Banario
Bantamweight: Soo Chul Kim
Others: Vacant
DREAM
Welterweight: Marius Zaromskis
Lightweight: Shinya Aoki
Featherweight: Hiroyuki Takaya
Bantamweight: Bibiano Fernandes
Others: Vacant