Four of UK private equity's biggest hitters will go before a Parliamentary committee next month to defend the industry from renewed criticism by trade unions.

Permira founder and managing partner Damon Buffini will join Kohlberg Kravis Roberts' Dominic Murphy, The Blackstone Group's David Blitzer and Peter Linthwaite, chief executive of industry body the British Private Equity and Venture Capital Association, in going before the Treasury Committee.