8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of
The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)
May 14, 2007

ENTERPRISE FINANCIAL SERVICES CORP
(Exact name of registrant as specified in its charter)

Delaware	001-15373	43-1706259
(State or Other Jurisdiction	(Commission	(IRS Employer
of Incorporation)	File Number)	Identification No.)

150 N. Meramec, St. Louis, Missouri	63105
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code
(314) 725-5500

Not applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) 

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) 

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) 

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) 

Item 5.02  Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers. 

     (b) On May 14, 2007, Paul R. Cahn tendered his resignation as a director of Enterprise Financial Services Corp (the “Company”) effective June 1, 2007.

     A copy of the press release regarding Mr. Cahn’s resignation is attached as Exhibit 99.1 to this report and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits

     99.1 Press Release of the Company dated May 15, 2007.

SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: May 15, 2007

ENTERPRISE FINANCIAL SERVICES CORP
By:	/s/ Kevin C. Eichner
	Kevin C. Eichner
	Chief Executive Officer

EX-99.1

EXHIBIT 99.1

For more information contact:      
Kevin Eichner or Frank Sanfilippo (314) 725 5500    
Melissa Sturges (816) 221 7500 or Ann Marie Mayuga (314) 469 4798

ENTERPRISE FINANCIAL SERVICES CORP
ANNOUNCES RETIREMENT OF PAUL R. CAHN
FROM ITS HOLDING COMPANY BOARD

St. Louis, May 15, 2007. Enterprise Financial Services Corp (NASDAQ: EFSC), the parent company of Enterprise Bank & Trust of St. Louis, MO, today announced the retirement of long-time board member, Paul R. Cahn, from its Holding Company Board effective June 1, 2007.

At the age of 81, Mr. Cahn has served Enterprise in a Board capacity for seventeen years, longer than all but two of EFSC’s current board members. During his tenure, EFSC has grown from one bank and one location with approximately $150 million in assets to a bank today with thirteen locations in St. Louis and Kansas City with combined assets of $1.7 billion and a Trust Company with assets of $1.64 billion. Its stock was listed on the NASDAQ in February of 2005 and has grown in value to over $320 million.

Mr. Cahn has served on numerous committees, most recently the Company’s Nominating & Governance Committee. He also served on the Company’s Legal Bank Board until a few years ago. A very successful entrepreneur, Mr. Cahn is CEO of Elan Polo, an international shoe conglomerate. He retains investment interests in construction and the financial service industries in addition to his shoe-related businesses. He has amassed one of the world’s finest antique English silver collections and is also known throughout the art world for his outstanding Native American textile collection.

“Paul is an extraordinary person, businessman, and art connoisseur”, commented Kevin C. Eichner, President and CEO of EFSC. “His wisdom, vitality, and drive are remarkable and our company and our management team have benefited enormously from his insights and involvement. His replacement will indeed have some very large shoes to fill,” he concluded.

“Being on the Board of Enterprise for the past seventeen years has been a marvelous experience. The many relationships it has created for both Enterprise and me are priceless. We have put together a great team and I know that they will continue to be outstanding achievers”, commented Mr. Cahn.

Peter Benoist, Chairman of EFSC’s Board, indicated that the search for Mr. Cahn’s replacement is underway.

Enterprise Financial operates commercial banking and wealth management businesses mostly in metropolitan St. Louis and Kansas City, with a primary focus on serving the needs of privately held businesses, their owners and other success-minded individuals.

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