Greenhill to Acquire Australian-Based Caliburn Partnership, A Leading Independent Financial Advisory Firm

New York, New York and Sydney, Australia – March 16, 2010 – Greenhill & Co., Inc.
(NYSE: GHL), a leading independent global investment bank, announced today that it
has signed a definitive agreement to acquire Caliburn Partnership Pty Ltd. ("Caliburn"), a
leading independent financial advisor in the Australasian market. Caliburn has advised
on more than A$170 billion of transactions since its founding, and had revenue for its
fiscal years ended June 30, 2009, 2008 and 2007 of A$68.0 million, A$80.9 million and
A$80.8 million, respectively. The transaction is expected to close in early April.