International Thomson Organization
Canadian conglomerate (1978-1989)
International Thomson Organization (ITO) was a Canadian holding company that was active from 1978 to 1989, with interests in publishing, travel, and natural resources. It was created as a part of a corporate restructuring of the Thomson Organization, originally founded by Roy Thomson, 1st Baron Thomson of Fleet in 1959, which included among others, ownership of The Times newspaper (later sold from the company in 1981). It merged with Thomson Newspapers to become the Thomson Corporation in 1989.
History
ITO was formed in 1978 to serve as the new corporate parent for Thomson's global operations. This coincided with the relocation of its operating base from Britain to Canada, so that it would not be subject to British monopolies legislation, foreign-exchange controls and dividend limitation.
Under Roy Thomson's son Kenneth Thomson, ITO sold its natural resources and continued expanding in publishing and media.
In 1980, Thomson acquired Jane's, a publishing company specializing in military intelligence. In 1981, it acquired the publishing operations of Litton Industries, including the Physicians' Desk Reference. On 12 February 1981, following a period of industrial disputes which could not be resolved, the company decided to sell The Times newspaper to Rupert Murdoch.
By 1986, International Thomson had acquired business publisher Warren, Gorham & Lamont; legal publishers Callaghan & Company and Clark Boardman; and automotive publishers Ward's.
The public source identifies “International Thomson Organization” as canadian conglomerate (1978-1989). This brief keeps that definition visible, then builds a research path around International, Thomson and Organization.
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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 Jun 25, 2026. The linked authority identifier is Q16848206. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1978, 1989, 1959 and 1981.
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This entry incorporates text from “International Thomson Organization” 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.