Saatchi Gallery opened in 1985 in a former paint factory in St John's Wood. Since 2008 it has filled the Duke of York's HQ on the King's Road, Chelsea.
Sadie Coles HQ opened in London in 1997 and now runs three West End spaces: 17 Savile Row in Mayfair, Kingly Street in Soho and Bury Street in St James's.
Timothy Taylor opened in Mayfair in 1996. Its London gallery now fills a five-storey Georgian townhouse on Bolton Street, with a second space in Tribeca.