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