|Association of independent firms|
|Founded||1923 as Kingston Smith|
1924 as Cabinet Sorel
1990 as Morison International and KS International
|Founders||Walter Morison, Herbert Kingston, Albert Sorel and George Alan Smith|
|Headquarters||Global Executive Office in London|
|Revenue||USD$1.002 billion (2017)|
Morison KSi (previously Morison International & KS International) is a global association of professional service firms (accounting, auditing, tax and business consulting). The association has 158 member firms in 81 countries. Morison KSi's status as an association is in accordance with the International Federation of Accountants (IFAC) audit code and the EU Statutory Audit Directive 2006/43/(EC) (“the 8th Directive”). Morison KSi is ranked by the International Accounting Bulletin as the 9th largest accounting association in the world. In January 2017, the combined revenue of all member firms was USD1.002 billion.
The association is the legacy of Walter Morison  (26 November 1919 - 26 March 2009) a Royal Air Force pilot who became a prisoner of war and was sent to Colditz for attempting to steal an enemy aircraft during the Second World War.
Following the war, Morison qualified as a chartered accountant at the Institute of Chartered Accountants in England & Wales. He was articled at Morison Stoneham, a firm established by his great uncle. Morison then worked at Coopers Bros, the firm that became Coopers & Lybrand, before returning to his family firm, Morison Stoneham. He led the firm as a senior partner through a period of great change from 1960 to 1981 before retiring. Morison Stoneham was the founding firm of Morison International.
Morison KSi is run under the direction of an international Board with 5 sub-regional Boards - Africa, Asia Pacific, Europe, Latin America and North America. Liza Robbins is the CEO of Morison KSi.
- Morison merges with KSi to form $1 billion international association
- "KSI, Morison merge". Times of Malta. 20 February 2016. Retrieved 4 August 2017.
- EU Statutory Audit Directive 2006/43/(EC)
- Flight Lieutenant Walter Morison - The Telegraph, 2009
- Morison International Appoints New Chief Executive - International Accounting Bulletin, October 2008 Archived 2013-02-17 at Archive.today