Graeme Samuel, Senior Australian Government Official, to Join Greenhill

28-Jul-11

New York, July 28, 2011 - Greenhill & Co., Inc. (NYSE GHL), a leading independent
investment bank, announced today that the retiring Chairman of the Australian Competition & Consumer
Commission (ACCC) Graeme Samuel, AC, will join the Firm as a Managing Director and Head of the
firm’s Melbourne, Australia, office next month.