Thomson Reuters Corporation () is a Canadian multinational mass media and information firm. The firm was founded in Toronto, Ontario, Canada, where it is headquartered at 333 Bay Street in Downtown Toronto. Thomson Reuters shares are cross listed on the New York Stock Exchange (NYSE: TRI) and the Toronto Stock Exchange (TSX: TRI).
Thomson Reuters was created by the Thomson Corporation's purchase of the British company Reuters Group in April 2008, and is majority owned by The Woodbridge Company, a holding company for the Thomson family. Thomson Reuters was ranked as Canada's "leading corporate brand" in the 2010 Interbrand Best Canadian Brands ranking. Thomson Reuters operates in more than 100 countries, and has more than 45,000 employees.