London Friend was originally a part of Friend which was a befriending offshoot of the Campaign for Homosexual Equality (CHE) and first operated from a flat in Earls Court and then moved to a community centre in Church Street Westminster.
London Friend was separated from CHE in 1975 and then obtained premises in Upper Street, temporarily in Seven Sisters Road, and later in Caledonian Road. The Caledonian Road premises were reported by January 2011 to be under threat and an appeal was launched to safeguard the building. During 2012, as a result of the appeal, and also additional funding following a merger with another charity, London Friend was able to purchase the property. Meanwhile continued expansion has meant that additional space is now being used at the GMFA office elsewhere in Islington.
London Friend has at various times provided befriending, counselling, meeting spaces, helplines, support groups, a library of gay and lesbian books, and training for volunteers, police cadets and social workers.
In 2011 British electronic singer Andi Fraggs recorded a charity single "Reality" for London Friend, followed by a fundraising show at Madame Jojo's in London's Soho.