EFSC Enterprise Financial Services Corporation

Enterprise Financial Services Corp (Nasdaq:EFSC) announced that its Board of Directors has approved a regular quarterly dividend of $0.0525 on the Company's common stock, payable on June 30, 2011 to shareholders of record on June 15, 2011.

Enterprise Financial operates commercial banking and wealth management businesses in metropolitan St. Louis, Kansas City and Phoenix. Enterprise is primarily focused on serving the needs of privately held businesses, their owner families, executives and professionals.

CONTACT: Jerry Mueller 
         Senior Vice President 
         (314) 512-7251
         
         Ann Marie Mayuga 
         AMM Communications 
         (314) 485-9499