The Ultimate Fighting Championship (UFC) is an American mixed martial arts (MMA) promotion company that hosts most of the top-ranked fighters in the w... (more)orld and produces numerous events worldwide. The UFC has five weight-divisions (growing to seven in 2011) and enforces the Unified Rules of Mixed Martial Arts. Dana White serves as the president of the UFC; Frank and Lorenzo Fertitta control its parent company, Zuffa, LLC