Blackstone in Talks Over Deal With Thomson Reuters Unitbr Thomson Reuters, which is based in Toronto, said it would retain a significant interest in the financialbr and risk business after any deal and would retain full ownership of its legal, tax and accounting, and news operations.br LONDON — Thomson Reuters, the news and digital information company, said on Tuesdaybr that it was in advanced discussions with the private equity giant Blackstone Group regarding a “potential partnership” with its financial and risk business.br The financial and risk unit provides research and analysis tools to financial markets professionalsbr and had revenue of $6.1 billion in 2016, the company said.br “The discussions between Thomson Reuters and Blackstone may or may not lead to a definitive agreement,” the company said in a news release.