David Thomson, 3rd Baron Thomson of Fleet
Canadian hereditary peer
David Kenneth Roy Thomson, 3rd Baron Thomson of Fleet (born 12 June 1957), is a Canadian and British hereditary peer and media magnate. Upon the death of his father in 2006, Thomson became the chairman of Thomson Corporation and also inherited his father's British title, Baron Thomson of Fleet. After the acquisition of Reuters in 2008, Thomson became the chairman of the merged entity, Thomson Reuters.
As of March 2026, Thomson is the #521st richest person in the world, with an estimated net worth of $7.3 billion USD.
Early life and education
He was born on June 12, 1957, in Toronto, Ontario, the eldest child of the 2nd Baron Thomson of Fleet and his wife, Marilyn Lavis. He has a sister named Taylor Thomson, and his brother, Peter Thomson, is a race car driver.
In 1978, Thomson received his Bachelor of Arts (subsequently upgraded to an MA (Cantab)) at Selwyn College, Cambridge, where he studied History. As a child, he attended both Upper Canada College and the Hall School.
Business career
Thomson started his business career as a junior associate at McLeod Young Weir in Toronto. He left the firm to enter the family business, working in a number of positions in companies controlled by the Thomson family. Thomson was manager of The Bay store at Cloverdale Mall in Etobicoke, and president of Zellers.
The public source identifies “David Thomson, 3rd Baron Thomson of Fleet” as canadian hereditary peer. This brief keeps that definition visible, then builds a research path around David, Thomson and Baron.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Apr 8, 2026. The linked authority identifier is Q981262. VIAF identifies the subject as 265308023. The Library of Congress control number is no2002084201. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1957, 2006, 2008 and 2026.
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This entry incorporates text from “David Thomson, 3rd Baron Thomson of Fleet” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.