Cage Warriors (CW) is a British mixed martial arts promotion, based in London, England. The promotion was established in 2001 and staged its first MMA event in London in July, 2002. Many MMA stars have made their names under the Cage Warriors banner, including Conor McGregor, Michael Bisping, Gegard Mousasi, Antônio Silva, Jeff Monson, Martin Kampmann, Dan Hardy, Joe Duffy, Cathal Pendred, Neil Seery, and Dennis Siver. CW are one of the few top promotions to take their events abroad, travelling throughout countries in Europe, North America and the Middle East.