Editing PwC (section)

===Coopers & Lybrand===
In 1854, [[William Cooper (accountant)|William Cooper]] founded an accountancy practice at No. 13 George Street in London. It became Cooper Brothers seven years later when his three brothers joined.<ref name=chronology />

In 1898, [[Robert Hiester Montgomery|Robert H. Montgomery]], William M. Lybrand, Adam A. Ross Jr. and his brother T. Edward Ross formed Lybrand, Ross Brothers and Montgomery in the United States.<ref name=chronology />

In 1957, Cooper Brothers, along with Lybrand, Ross Bros & Montgomery and a Canadian firm (McDonald, Currie and Co.), agreed to adopt the name Coopers & Lybrand in international practice.<ref name=chronology /> In 1973, the three member firms in the UK, US and Canada changed their names to Coopers & Lybrand.<ref>{{Cite web|url=http://www.icaew.com/~/media/Files/Library/subjects/accounting%20history/family%20trees/family-tree-coopers-lybrand|title=ICAEW: Firms family trees|access-date=18 October 2011|archive-date=19 January 2012|archive-url=https://web.archive.org/web/20120119002033/http://www.icaew.com/~/media/Files/Library/subjects/accounting%20history/family%20trees/family-tree-coopers-lybrand|url-status=live}}</ref> Then in 1980, Coopers & Lybrand expanded its expertise in [[insolvency]] substantially by acquiring [[Cork Gully]], a leading firm in that field in the UK.<ref>{{cite web|url=http://www.managementtoday.co.uk/news/411874/UK-Profile---Michael-Jordan-Cork-Gully/ |title=Profile – Michael Jordan of Cork Gully |work=Management Today |date= 1 January 1993 |access-date=3 August 2012 |archive-date=28 May 2012 |url-status=live |archive-url=https://web.archive.org/web/20120528135713/http://www.managementtoday.co.uk/news/411874/UK-Profile---Michael-Jordan-Cork-Gully/ }}</ref> In 1990, in certain countries, including the UK, Coopers & Lybrand merged with [[Deloitte|Deloitte, Haskins & Sells]] to become Coopers & Lybrand Deloitte;<ref name=chronology/> in 1992 they reverted to Coopers & Lybrand.<ref>{{cite web|url=http://www.icaew.com/index.cfm/route/155667/icaew_ga/en/Home/About_us/History_of_accounting/Coopers__Lybrand |archive-url=https://archive.today/20121209133204/http://www.icaew.com/index.cfm/route/155667/icaew_ga/en/Home/About_us/History_of_accounting/Coopers__Lybrand |url-status=dead |archive-date=9 December 2012 |title=ICAEW family trees |publisher=Icaew.com }}</ref>

The firm relocated from George Street to modern offices designed by [[Dennis Lennon & Partners]] at Plumtree Court in 1985,<ref>{{cite web|url=https://www.ribapix.com/Coopers-Lybrand-offices-Plumtree-Court-City-of-London-the-fully-glazed-conference-and-meeting-room_RIBA159618|title= Coopers & Lybrand offices Plumtree Court, City of London|publisher=Royal Institute of British Architects| access-date=17 April 2025}}</ref> and then moved to new offices designed by [[Terry Farrell (architect)|Terry Farrell]] at Embankment Place in 1994.<ref>{{cite news|url=https://www.independent.co.uk/arts-entertainment/az-of-employers-coopers-and-lybrand-1150991.html|title=A-Z of employers; Coopers and Lybrand|date=19 March 1998|newspaper=The Independent|access-date=17 April 2025}}</ref>