International Thomson Organization (ITO) was a

holding company A holding company is a company whose primary business is holding a controlling interest in the securities of other companies. A holding company usually does not produce goods or services itself. Its purpose is to own shares of other companies ...

for interests in publishing, travel, and natural resources, that existed from 1978 to 1989. It was formed as a reorganisation of the Thomson Organization, which had been founded by

Roy Thomson, 1st Baron Thomson of Fleet Roy Herbert Thomson, 1st Baron Thomson of Fleet, (5 June 1894 – 4 August 1976) was a Canadian-born British newspaper proprietor who became one of the moguls of Fleet Street in London. He first came to prominence when he was selling radios in ...

(Lord Thomson of Fleet; 1894–1976) in 1959. It merged with Thomson Newspapers to become the

Thomson Corporation The Thomson Corporation was one of the world's largest information companies. It was established in 1989 following a merger between International Thomson Organisation Ltd (ITOL) and Thomson Newspapers. In 2008, it purchased Reuters Group to fo ...

in 1989. ITO was formed in order to move the Thomson Organization's 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 Kenneth Roy Thomson, 2nd Baron Thomson of Fleet (September 1, 1923 – June 12, 2006), known in Canada as Ken Thomson, was a Canadian/British businessman and art collector. At the time of his death, he was listed by ''Forbes'' as the richest per ...

, ITO sold its natural resources and continued expanding in publishing and media. In 1980, Thomson acquired

Jane's Jane's Information Group, now styled Janes, is a global open-source intelligence company specialising in military, national security, aerospace and transport topics, whose name derives from British author Fred T. Jane. History Jane's Informat ...

, an publishing company specializing in military intelligence. In 1981, it acquired the publishing operations of

Litton Industries Litton Industries was a large defense contractor in the United States named after inventor Charles Litton Sr. During the 1960s, the company began acquiring many unrelated firms and became one of the largest conglomerates in the United States. A ...

, including the ''

Physicians' Desk Reference The ''Prescriber's Digital Reference'' (''PDR'') is a compilation of manufacturers' prescribing information ( package insert) on prescription drugs, updated regularly and published by ConnectiveRx. History The original PDR was titled "Physician ...

''. By 1986, International Thomson had acquired business publisher Warren, Gorham & Lamont; legal publishers Callaghan & Company and Clark Boardman; and automotive publishers

Ward's Ward's is an American organization that has covered the automotive industry for over 80 years. The organization is responsible for several publications including, '' Ward's AutoWorld'', and '' Ward's Dealer Business''. Ward's also publish the ...

. Other publishers acquired include

Gale A gale is a strong wind; the word is typically used as a descriptor in nautical contexts. The U.S. National Weather Service defines a gale as sustained surface winds moving at a speed of between 34 and 47 knots (, or ).Mitchell Mitchell may refer to: People *Mitchell (surname) *Mitchell (given name) Places Australia * Mitchell, Australian Capital Territory, a light-industrial estate * Mitchell, New South Wales, a suburb of Bathurst * Mitchell, Northern Territory ...

, and Thomson & Thomson. In 1988, ITO acquired the British company Associated Book Publishers, which included

Sweet & Maxwell Sweet & Maxwell is a British publisher specialising in legal publications. It joined the Associated Book Publishers in 1969; ABP was purchased by the International Thomson Organization in 1987, and is now part of Thomson Reuters. Its British ...

Chapman & Hall Chapman & Hall is an Imprint (trade name), imprint owned by CRC Press, originally founded as a United Kingdom, British publishing house in London in the first half of the 19th century by Edward Chapman (publisher), Edward Chapman and William Hall ...

, The Law Book Company of Australasia, and

Routledge Routledge () is a British multinational publisher. It was founded in 1836 by George Routledge, and specialises in providing academic books, journals and online resources in the fields of the humanities, behavioural science, education, law, ...

. In 1989, ITO acquired Lawyers Cooperative Publishing, including subsidiaries Bancroft-Whitney and Research Institute of America.

References

Thomson Reuters Defunct companies of Ontario Holding companies established in 1978 Publishing companies disestablished in 1989 Publishing companies established in 1978 1989 disestablishments in Ontario Canadian companies established in 1978 Canadian companies disestablished in 1989 1978 establishments in Ontario 1989 mergers and acquisitions {{Canada-company-stub