NetWorth
LeaderPortfolio
Thomson
David Thomson
Rank #636
CANADA•Media Entertainment•Thomson Reuters

David Thomson

Net Worth
$6.323B
-0.24% (24h)
David Kenneth Roy Thomson, the 3rd Baron Thomson of Fleet, is a prominent Canadian and British media magnate with an estimated net worth of $6.6 billion as of March 25, 2026. He is the Chairman of Thomson Reuters, a leading global provider of business information services. Born in Toronto, Canada, in 1957, Thomson inherited his father's British title in 2006 and has built a significant career in media and business. His source of wealth is primarily from Thomson Reuters. Thomson has a history of significant art collecting and a relatively private public profile, despite his substantial family wealth and influence.

How to read David Thomson's profile

Public net-worth figures are estimates. They combine observable inputs—typically listed equity, disclosed transactions, and market prices—with editorial judgment where filings are incomplete (for example, private holdings, debt, or cross-holdings). For David Thomson, we anchor the narrative to Thomson Reuters and Thomson Reuters, then update the headline number as markets move. The chart on this page is meant to show trajectory, not a certified balance sheet.

When you see $6.323B alongside global rank #636, interpret it as our best synthesis of widely cited ownership and price signals—not a claim about cash on hand. Estimates can diverge from other publishers because of different treatment of options, trusts, charitable vehicles, or illiquid assets. We document the general approach in methodology and welcome corrections via corrections.

Country (CANADA) and career milestones on this page are curated for reader context; they should be verified against primary sources when used for research. Editorial metadata for this profile is refreshed on a rolling basis, with deeper audits at least annually (last noted cycle: 2026).

Looking for depth? When available, the dossier and timeline sections below add long-form context beyond the headline number—prioritize those modules when evaluating claims about strategy, controversies, or philanthropic commitments.

The Full Dossier

Early Life and Education

David Kenneth Roy Thomson, the 3rd Baron Thomson of Fleet, was born on June 12, 1957, in Toronto, Ontario, Canada. He is the eldest child of Kenneth Thomson, 2nd Baron Thomson of Fleet, and Marilyn Lavis. He attended Upper Canada College and The Hall School as a child. Thomson received a Bachelor of Arts degree from Selwyn College, Cambridge, where he studied history.

Rise to Success

Thomson's career began as a junior associate at McLeod Young Weir in Toronto. He then entered the family business, holding various positions within companies controlled by the Thomson family. Notably, he served as the manager of The Bay store at Cloverdale Mall in Etobicoke and as the president of Zellers. He was also the chairman of Simpsons department store under the Hudson's Bay Company. Upon his father's death in 2006, Thomson became the chairman of Thomson Corporation and inherited his father's British title, Baron Thomson of Fleet. After the acquisition of Reuters in 2008, he became the chairman of the merged entity, Thomson Reuters.

Key Business Strategies

As chairman of Thomson Reuters, Thomson oversees a multinational content-driven technology conglomerate. The company's core business involves providing trusted data and information to professionals in legal, tax and accounting, financial, healthcare, and media markets. Thomson Reuters focuses on technological innovation and strategic acquisitions to maintain its market position. The Thomson family, through The Woodbridge Company Limited, maintains controlling ownership of Thomson Reuters.

Philanthropy

David Thomson is known for his significant art collection and has been a benefactor to the Art Gallery of Ontario.

Career Timeline

2008

Chairman of Thomson Reuters

Became chairman of the merged entity, Thomson Reuters, after the acquisition of Reuters.

2006

Chairman of Thomson Corporation

Became chairman of Thomson Corporation after his father's death and inherited the British title, Baron Thomson of Fleet.

Philanthropic Impact

ArtsUndisclosed

Art Gallery of Ontario

Thomson is a patron of the Art Gallery of Ontario.

Key Business Ventures & Holdings

CompanyStakeValue
Thomson Reuters14.00%—

Net Worth History

In-Depth Analysis

Early Life and Education

David Kenneth Roy Thomson, the 3rd Baron Thomson of Fleet, was born on June 12, 1957, in Toronto, Ontario, Canada. He is the eldest child of Kenneth Thomson, 2nd Baron Thomson of Fleet, and Marilyn Lavis. He attended Upper Canada College and The Hall School as a child. Thomson received a Bachelor of Arts degree from Selwyn College, Cambridge, where he studied history.

Rise to Success

Thomson's career began as a junior associate at McLeod Young Weir in Toronto. He then entered the family business, holding various positions within companies controlled by the Thomson family. Notably, he served as the manager of The Bay store at Cloverdale Mall in Etobicoke and as the president of Zellers. He was also the chairman of Simpsons department store under the Hudson's Bay Company. Upon his father's death in 2006, Thomson became the chairman of Thomson Corporation and inherited his father's British title, Baron Thomson of Fleet. After the acquisition of Reuters in 2008, he became the chairman of the merged entity, Thomson Reuters.

Key Business Strategies

As chairman of Thomson Reuters, Thomson oversees a multinational content-driven technology conglomerate. The company's core business involves providing trusted data and information to professionals in legal, tax and accounting, financial, healthcare, and media markets. Thomson Reuters focuses on technological innovation and strategic acquisitions to maintain its market position. The Thomson family, through The Woodbridge Company Limited, maintains controlling ownership of Thomson Reuters.

Philanthropy

David Thomson is known for his significant art collection and has been a benefactor to the Art Gallery of Ontario.

Data Sources & Methodology

Figures for David Thomson are synthesized from the sources below and cross-checked against our net worth methodology. Estimates may lag market moves; see corrections to report discrepancies.

You may also like

HubAll BillionairesHubGlobal RankingsHubNewsroom