EXHIBIT 24.1

POWER OF ATTORNEY

The undersigned members of the Board of Directors and Executive Officers of Enterprise Financial Services Corp, a Delaware corporation (the “Company”) hereby appoint Frank H. Sanfilippo or Kevin C. Eichner as their Attorney-in-Fact for the purpose of signing the Company’s Securities Exchange Commission Form 10-K (and any and all Amendments thereto) for the year ended December 31, 2007.

Dated: January 16, 2008

	Signatures				Title
/s/ Peter F. Benoist				Executive Vice President and
Peter F. Benoist				Chairman of the Board of Directors
/s/ James J. Murphy, Jr.
James Murphy, Jr.				Lead Director
/s/ Kevin C. Eichner
Kevin C. Eichner				Chief Executive Officer and Director
/s/ Michael A. DeCola
Michael A. DeCola				Director
/s/ William H. Downey
William H. Downey				Director
/s/ Robert E. Guest, Jr.
Robert E. Guest, Jr.				Director
/s/ Lewis A. Levey
Lewis A. Levey.				Director
/s/ Birch M. Mullins
Birch M. Mullins				Director
/s/ Brenda D. Newberry
Brenda D. Newberry				Director
/s/ Robert E. Saur
Robert E. Saur				Director
/s/ Sandra Van Trease
Sandra Van Trease				Director
/s/ Henry D. Warshaw
Henry D. Warshaw				Director