Pride has been organised by several organisations since the first official UK Gay Pride Rally which was held in London on 1 July 1972 (chosen as the nearest Saturday to the anniversary of the Stonewall riots of 1969) with approximately 2000 participants. The first London gay marches were in November 1970 with 150 men walking through Highbury Fields in North London. The controversy of Section 28 from 1988 lead to numbers increasing on the march in protest. In 1983 the march was renamed "Lesbian and Gay Pride" and in the 1990s became more of a carnival event. There were large park gatherings and a fair after the marches up until 2003..
'Pride London' was formed in 2004. Since 2004 a political rally in Trafalgar Square has been held straight after the parade, and more recently Pride London has organised several other events in the centre of London on Pride Day including in 2006 'Drag Idol' in Leicester Square, a women's stage in Soho and a party in Soho Square. In 1992 London was selected to hold the first Europride with attendance put at 100,000, London again held Europride in 2006 with an estimated 600,000 participants. In 2004 it was awarded registered charity status. The 2012 event was World Pride., though this was to be the last event organised by Pride London.
In late 2012, a group of individuals from within the LGBTQ community formed London LGBT+ Community Pride, a registered community interest company, and the company organised the Pride in London festival and parade in 2013. The organisation has been awarded a contract to organise Pride in London for five years by the Greater London Authority, together with funding of £500,000 over five years. The Mayor of London, Boris Johnson has been a vocal supporter of Pride in London.