Clan Kelley is a major London-based British crime firm, formerly led by Mary Kelley. During the 2010s, Clan Kelley was one of London's five largest gangs, but, following the Albion private military company's state-sponsored crackdown on crime in London in 2020, Clan Kelley became the last gang standing, absorbing the other gangs and acting with impunity due to its illicit ties with Albion. The gang, which had its roots in Northern Ireland, expanded out of the East End amid the post-Brexit chaos and moved aggressively into cryptocurrency markets and leveraged it into control of the city's rapidly growing underground economy-from old standbys like prostitution, drugs, and weapons into the staples of life. The gang's largest and most infamous operation was its human trafficking ring, selling harvested organs on the black market. Clan Kelley was based from the Sandstone Residence and used Camden Market, the Leather Lane Market, the Brixton Barrier Block, the Southwark Incinerator, and several other under-policed locations as its main hubs of operation. The majority of Clan Kelley's members were of South Asian and Black (African and Caribbean) heritage, although its ranks also included White British members, Europeans, and East Asians.