By Isabell Witt and Claire Ruckin
LONDON (Reuters) - Thomson Reuters
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The value of the sale was not disclosed.
The loan to support the leveraged buyout is expected to be around $200 million, sources familiar with the deal told Thomson Reuters LPC.
Vista beat bids from other private equity firms including Cinven, Bridgepoint and Montagu Private Equity.
Thomson Reuters, which provides news and information services, said it will now begin a consultation process with works councils, unions and employee representatives and a final sale and purchase agreement to the proposed transaction is expected to close by January 31, 2012.
Barclays Capital acted as sole financial advisor to Thomson Reuters.
The trade and risk management business operates under the Thomson Reuters enterprise solutions business.
Kondor provides trade and risk software as well as liquidity risk systems for treasury and cash management operations. Its main competitors include Misys
In April, Thomson Reuters said it expects to raise about $1 billion from the sale of its enterprise risk management and investment accounting software businesses, along with previously announced sales of a legal education product and Scandinavian legal and tax and accounting units.
In June Thomson Reuters said it also planned to sell a unit of its healthcare business. In 2010 the unit had revenues of about $450 million.
(Additional reporting Jennifer Saba; Editing by Chris Wickham and David Cowell)