Exhibit 21.1 — Subsidiaries of Diamond Hill Investment Group, Inc.
December 31, 2009

Subsidiary company and place of incorporation	Ownership
Diamond Hill Capital Management, Inc. (Ohio)		100	%
Diamond Hill GP (Cayman) Ltd.		100	%
Beacon Hill Fund Services, Inc. (Ohio)		100	%
BHIL Distributors, Inc. (Ohio)		100	%