EXHIBIT 31.3

I, Scott L. Bok, certify that:

1.I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K of Greenhill & Co., Inc.; and

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

		/s/ Scott L. Bok
		Scott L. Bok
		Chief Executive Officer
Date:	April 30, 2018