SimpsonHaugh and Partners (formerly Ian Simpson Architects) is an English architecture practice established in 1987 by Ian Simpson and Rachel Haugh. The practice is based in Manchester with offices in London. In 2014 the practice re-branded as Simpson Haugh & Partners.Since the 1996 Manchester bombing by the IRA, Ian Simpson Architects have played a large role in the reconstruction of Manchester, with many of the city's most notable new buildings having been designed by the firm.