Bet365 are the best betting website in the world for Live Betting on MMA. We highly recommend that you join them.
Unibet are a good entry level website for beginners who want to Live Bet on the UFC. They have low betting limits but are good at everything else.
William Hill often have the best value odds and the highest betting limits for Live Betting on MMA.
Ladbrokes are one of the largest betting websites in Europe. They offer Live Betting on all UFC events.
Sportsbet are one of the largest betting websites in Australia and New Zealand. They offer Live Betting on all UFC events.