Private equity firm Candover Investments has agreed to sell its Equity Trust business to rival Doughty Hanson for an enterprise value of €350m that should bring in an estimated €24.2m (£19.9m) in cash.Equity Trust provides complex, high-end business administration and fiduciary services. Its sale will make £15.8m (£13.0m) once the deal completes, expected by the end of the year, plus a guaranteed deferred payment of €8.4m (£6.9m), payable no later than 30 June 2011.The disposal, at a 24% premium to its valuation at the end June, will result in an increase of 22p per share in the net asset value of Candover.Candover bought Equity Trust in May 2003 and increased revenues from €60m then to €140m in 2010.In July, talks to sell Candover to a Candian pension fund collapsed. Alberta Investment Management approached the venture capitalist over a possible takeover and cash injection in April, but talks broke down.