<SUBMISSION>
<ACCESSION-NUMBER>0001206774-08-000426
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>3
<PERIOD>20080303
<ITEMS>5.02
<ITEMS>9.01
<FILING-DATE>20080303
<DATE-OF-FILING-DATE-CHANGE>20080303
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>ENTERPRISE FINANCIAL SERVICES CORP
<CIK>0001025835
<ASSIGNED-SIC>6022
<IRS-NUMBER>431706259
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0907
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-15373
<FILM-NUMBER>08657938
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>150 NORTH MERAMEC
<STREET2>150 NORTH MERAMEC
<CITY>CLAYTON
<STATE>MO
<ZIP>63105
<PHONE>3147255500
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>150 NORTH MERAMEC
<STREET2>150 NORTH MERAMEC
<CITY>CLAYTON
<STATE>MO
<ZIP>63105
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>ENTERBANK HOLDINGS INC
<DATE-CHANGED>19961024
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>enterprise_8k.htm
<DESCRIPTION>CURRENT REPORT
<TEXT>

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<P align=center><B><FONT face=serif size=5><FONT size=3>UNITED
STATES</FONT><BR></FONT></B><B><FONT face=serif size=5><FONT size=3>SECURITIES
AND EXCHANGE COMMISSION</FONT><BR></FONT></B><B><FONT face=serif><FONT size=3>Washington, D.C. 20549</FONT></FONT></B><BR>&nbsp;</P>
<P align=center><B><FONT face=serif size=5>FORM 8-K</FONT></B></P>
<P align=center><B><FONT face=serif>CURRENT REPORT</FONT></B></P>
<P align=center><FONT face=serif size=3><b>Pursuant to Section 13 or 15(d) of
<BR>The Securities Exchange Act of 1934</b></FONT></P>
<P align=center><FONT face=serif size=2>Date of Report (Date of earliest event
reported) <BR>March 3, 2008</FONT></P>
<P align=center><B><FONT face=serif size=6>ENTERPRISE FINANCIAL SERVICES
<BR>CORP <BR></FONT></B><B><FONT face=serif size=1>(Exact name of registrant as
specified in its charter)</FONT></B></P>
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    <TD noWrap align=center width="33%"><FONT size=2><STRONG>Delaware</STRONG></FONT><FONT size=3>&nbsp;</FONT></TD>
    <TD noWrap align=center width="33%"><FONT size=2><STRONG>001-15373</STRONG></FONT><FONT size=3>&nbsp;</FONT></TD>
    <TD noWrap align=center width="33%"><FONT size=2><STRONG>43-1706259</STRONG></FONT><FONT size=3>&nbsp;</FONT></TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=center width="33%"><FONT face=serif><FONT size=1>(State
      or Other Jurisdiction of <BR>Incorporation)</FONT></FONT></TD>
    <TD noWrap align=center width="33%"><FONT size=1>(Commission <BR>File
      Number)</FONT></TD>
    <TD noWrap align=center width="33%"><FONT face=serif><FONT face=serif size=1>(IRS Employer <BR>Identification
No.)</FONT></FONT></TD></TR></TABLE><BR>
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    <TD noWrap align=center width="70%"><FONT face=serif><FONT size=2><STRONG>150 N. Meramec, St. Louis, Missouri</STRONG><BR><FONT size=1>(Address of principal executive
      offices)</FONT></FONT></FONT></TD>
    <TD noWrap align=center width="29%"><FONT face=serif size=2><STRONG>63105</STRONG><BR><FONT size=1>(Zip
Code)</FONT></FONT></TD></TR></TABLE><BR>
<DIV align=center>
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  <TR vAlign=bottom>
    <TD noWrap align=center width="99%"><FONT face=serif size=3>Registrant&#146;s
      telephone number, including area code&nbsp;</FONT></TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=center width="99%"><B><FONT face=serif size=2>(314)
      725-5500</FONT></B>&nbsp;</TD></TR>
  <TR>
    <TD width="99%">&nbsp;&nbsp;</TD></TR>
  <TR vAlign=bottom>
    <TD style="BORDER-BOTTOM: #000000 1pt solid" align=center width="99%"><FONT face=serif size=2><FONT size=3>Not
      applicable&nbsp;</FONT><FONT size=3></FONT></FONT></TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=center width="99%"><B><FONT face=serif size=1>(Former
      name or former address, if changed since last
  report)</FONT></B>&nbsp;</TD></TR></TABLE></DIV><BR>
<P align=justify><FONT face=serif size=2>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:</FONT></P>
<P align=justify><FONT face=serif size=2><FONT face=Wingdings>o</FONT>&nbsp;&nbsp;&nbsp; Written communications pursuant to
Rule 425 under the Securities Act (17 CFR 230.425)</FONT></P>
<P align=justify><B><FONT face=serif size=2></FONT></B><FONT face=serif size=2><FONT face=Wingdings>o</FONT><FONT face="Times New Roman">&nbsp;&nbsp;&nbsp; Soliciting material pursuant to Rule
14a-12 under the Exchange Act (17 CFR 240.14a-12)</FONT></FONT></P>
<P align=justify><B><FONT size=2></FONT></B><FONT size=2><FONT face=Wingdings>o</FONT>&nbsp;&nbsp;&nbsp; Pre-commencement communications
pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR
240.14d-2(b))</FONT></P>
<P align=justify><B><FONT size=2></FONT></B><FONT size=2><FONT face=Wingdings>o</FONT>&nbsp;&nbsp;&nbsp; Pre-commencement communications
pursuant to Rule 13e-4&#169; under the Exchange Act (17 CFR
240.13e-4(c))</FONT></P>


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<PAGE>

<P align=left><B><FONT face=serif size=2>Item 5.02. Departure of Directors or
Certain Officers; Election of Directors; Appointment of Certain Officers;
Compensatory Arrangements of Certain Officers. </FONT></B></P>
<P align=left><FONT face=serif size=2>(b) On March 3, 2008, Enterprise Financial
Services Corp (the &#147;Company&#148;) announced that Kevin C. Eichner, has tendered his
resignation as the President and Chief Executive Officer of the Company
effective May 1, 2008. Mr. Eichner resigned in order to accept the position of
President of Ottawa University. </FONT></P>
<P align=left><FONT face=serif size=2>The Company simultaneously announced that
the Board of Directors has appointed Peter F. Benoist to replace Mr. Eichner as
President and Chief Executive Officer, also effective May 1, 2008. Since 2002,
Mr. Benoist has served as the Executive Vice President and Chairman of the Board
of Directors of the Company, as well as Chief Executive Officer of Enterprise
Bank &amp; Trust (the &#147;Bank&#148;).</FONT></P>
<P align=left><FONT face=serif size=2>Upon assuming the position of President
and Chief Executive Officer, Mr. Benoist will relinquish his position as
Chairman of the Board. The Board has elected James J. Murphy, Jr. to replace Mr.
Benoist and serve as non-executive Chairman of the Board, effective at such time. Mr.
Murphy has served as the Lead Director of the Company since 2005 and since 1979
has been the Chairman and Chief Executive Officer of Murphy Company, one of the
largest mechanical contracting firms in the United States. </FONT></P>
<P align=left><FONT face=serif size=2>The Company&#146;s related press release is
filed as Exhibit 99.1 to this Form 8-K and is incorporated herein by this
reference. </FONT></P>
<P align=left><FONT face=serif size=2>The Company has not entered into any
material plans, contracts or arrangements or amended any existing plans,
contracts or arrangements with Mr. Benoist or Mr. Murphy, however the Company
and Mr. Benoist intend to negotiate an amendment to Mr. Benoist&#146;s current
Executive Employment Agreement, which would be effective May 1, 2008.
</FONT></P>
<P align=left><FONT face=serif size=2>(e) On March 3, 2008, the Company entered
into a Consulting Agreement (the &#147;Consulting Agreement&#148;) with Mr. Eichner, to be
effective May 1, 2008. The Consulting Agreement provides that for a period of
one year following the effective date of his resignation, subject to earlier
termination, Mr. Eichner will (i) provide strategic consulting services to the
Company as requested, up to a maximum of twenty four (24) days per year, and
(ii) continue to serve as a member of the Board of Directors of the Company and
certain subsidiaries of the Company, including serving as Vice Chairman of the
Board of Directors of the Company.</FONT></P>
<P align=left><FONT face=serif size=2>In exchange for such services, during the
term of the Consulting Agreement, Mr. Eichner will be entitled to a consulting
fee of $10,000 per month plus compensation to which Mr. Eichner may be entitled
under the Company&#146;s general policies regarding non-employee director
compensation. Currently, non-employee directors are entitled to a $6,000 annual
retainer plus $750 per board meeting attended. The term of the Consulting
Agreement may be terminated at any time by either party on ninety (90) days
prior notice.</FONT></P>
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<P align=left><FONT face=serif size=2>The Consulting Agreement also specifies
Mr. Eichner&#146;s Executive Employment Agreement, which had expired on December 31,
2007, will continue in effect until May 1, 2008 as if not expired and that Mr.
Eichner&#146;s resignation will be treated as a &#147;Voluntary Termination,&#148; as defined
under the Executive Employment Agreement. As a result of this Voluntary
Termination, among other things, Mr. Eichner will forfeit unvested restricted
stock units, options and stock settled appreciation rights. The Consulting
Agreement further specifies that the one year non-competition period under Mr.
Eichner&#146;s Executive Employment Agreement will commence on the termination of the
consulting term. </FONT></P>
<P align=left><B><FONT face=serif size=2>Section 9 &#150; Financial Statements and
Exhibits </FONT></B></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;
</FONT><STRONG>Item 9.01 Financial Statements and Exhibits. </STRONG></FONT></P>
<P align=left><FONT face=serif size=2>(d) Exhibits </FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;
</FONT>10.1 Consulting Agreement between the Company and Kevin C. Eichner.
</FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;
</FONT>99.1 Text of Press Release, dated March 3, 2008. </FONT></P>
<P align=center><B><FONT face=serif size=2>SIGNATURES </FONT></B></P>
<P align=left><FONT face=serif size=2>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 thereunto duly authorized.
</FONT></P>
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    <TD noWrap align=left width="50%" colSpan=3><FONT size=2>ENTERPRISE FINANCIAL SERVICES CORP.
  </FONT></TD></TR>
  <TR>
    <TD noWrap align=left width="1%"></TD>
    <TD noWrap align=left width="49%"></TD>
    <TD noWrap align=left width="1%"></TD>
    <TD noWrap align=left width="49%" colSpan=2>&nbsp;</TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=left width="1%"><FONT size=2>Date:&nbsp;&nbsp;</FONT></TD>
    <TD noWrap align=left width="49%"><FONT size=2>March 3,
      2008&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></TD>
    <TD noWrap align=left width="1%"><FONT size=2>By:&nbsp;&nbsp;</FONT></TD>
    <TD style="BORDER-BOTTOM: #000000 1pt solid" noWrap align=left width="29%"><FONT size=2>/s/ Frank H. Sanfilippo&nbsp;
      </FONT></TD>
    <TD noWrap align=left width="20%">&nbsp;</TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=left width="1%"><FONT size=2>&nbsp;
      </FONT></TD>
    <TD noWrap align=left width="49%"><FONT size=2>&nbsp;
      </FONT></TD>
    <TD noWrap align=left width="1%"></TD>
    <TD noWrap align=left width="49%" colSpan=2><FONT size=2><FONT face=serif>Frank H.
      Sanfilippo</FONT>&nbsp; </FONT></TD></TR>
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    <TD noWrap align=left width="1%"><FONT size=2>&nbsp;
      </FONT></TD>
    <TD noWrap align=left width="49%"><FONT size=2>&nbsp;
      </FONT></TD>
    <TD noWrap align=left width="1%"></TD>
    <TD noWrap align=left width="49%" colSpan=2><FONT size=2><FONT face=serif>Executive
      Vice President and Chief</FONT>&nbsp; </FONT></TD></TR>
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    <TD noWrap align=left width="1%"><FONT size=2>&nbsp;
      </FONT></TD>
    <TD noWrap align=left width="49%"><FONT size=2>&nbsp;
      </FONT></TD>
    <TD noWrap align=left width="1%"></TD>
    <TD noWrap align=left width="49%" colSpan=2><FONT size=2><FONT face=serif>Financial
      Officer</FONT>&nbsp; </FONT></TD></TR></TABLE><BR>
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<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>2
<FILENAME>exhibit10-1.htm
<DESCRIPTION>CONSULTING AGREEMENT BETWEEN THE COMPANY AND KEVIN C. EICHNER.
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<P align=right><B><FONT face=serif size=2>Exhibit 10.1 </FONT></B></P>
<P align=center><B><U><FONT face=serif size=2>CONSULTING
AGREEMENT</FONT></U></B><B><FONT face=serif size=2> </FONT></B></P>
<P align=left>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT face=serif size=2>THIS
CONSULTING AGREEMENT (&#147;Agreement&#148;) is made by and between KEVIN C. EICHNER
(&#147;Consultant&#148;) and ENTERPRISE FINANCIAL SERVICES CORP (&#147;EFSC&#148;) on this ___ day
of February, 2008, to be effective as of May 1, 2008. </FONT></P>
<P align=left><B><U><FONT face=serif size=2>RECITALS</FONT></U></B><B><FONT face=serif size=2> </FONT></B></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>A. Consultant has determined to
voluntarily resign his position as the President and CEO of EFSC effective as of
May 1, 2008 (&#147;Effective Date&#148;). </FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>B. EFSC desires to retain the
expertise and services of the Consultant following the Effective Date, and
Consultant is willing to provide consulting services as provided herein.
</FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>NOW, THEREFORE, it is agreed by and
between EFSC and Consultant as follows: </FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>1. </FONT><B><U><FONT face=serif size=2>Consulting Services</FONT></U></B><FONT face=serif size=2>. During the
Term of this Agreement, Consultant (either directly or through an entity formed
by Consultant as provided in Paragraph 7 below) will provide consulting services
to EFSC and its subsidiaries. Specific matters upon which Consultant may provide
such services shall be determined by the President and Chief Executive Officer
of EFSC. </FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>2. </FONT><B><U><FONT face=serif size=2>Term. </FONT></U></B><FONT face=serif size=2>The provisions of this
Agreement shall become effective beginning on the Effective date of May 1, 2008
and will terminate upon the earlier of (a) May 1, 2009 or (b) ninety days
following written notice of termination of this Agreement which may be given by
either party. </FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>3. </FONT><B><U><FONT face=serif size=2>Compensation</FONT></U></B><FONT face=serif size=2>. Compensation for
consulting services provided pursuant to this Agreement shall be at the rate of
$10,000 per month ("Retainer") , payable monthly. It is understood that such
Retainer is for services exclusive of services provided as a member of the Board
of Directors of EFSC or any of its subsidiaries as provided in Paragraph 4 below
per year during the Term of this Agreement. In addition to such Retainer,
Consultant shall be paid normal reimbursable expenses, such as travel,
transportation, lodging and out-of-pocket expenses in accordance with EFSC&#146;s
normal expense reimbursement policies. </FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>4. </FONT><B><U><FONT face=serif size=2>Service on Boards of Directors</FONT></U></B><FONT face=serif size=2>. In
addition to the consulting services provided herein, if elected, Eichner shall
serve as the Vice Chairman and as a member of the Board of Directors of EFSC, on
the Board of Enterprise Trust Company as its Chairman of the Board, as a member
of the Board of Directors of Enterprise Bank &amp; Trust Company of Arizona
("EBTA") the contemplated subsidiary Bank doing business in the State of Arizona
and as a member of the Board of Directors of those other subsidiaries to which
Consultant is elected. In addition to the Retainer set forth above, Consultant
shall be entitled to receive Board of Directors fees in the same amount as other
non-employee members of those respective Boards. </FONT></P>
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<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>5. </FONT><B><U><FONT face=serif size=2>Coordination with Employment Agreement</FONT></U></B><FONT face=serif size=2>. Reference is made to that certain Executive Employment Agreement by and
between EFSC and Consultant effective as of July 1, 2005 (&#147;Employment
Agreement&#148;). It is agreed by and between the Consultant and EFSC that the Term
of such Employment Agreement is extended and continues until the Effective Date
of this Agreement, and that Consultant&#146;s resignation as the President and CEO of
EFSC shall be deemed to be a Voluntary Termination as provided in Paragraph 5.5
of the Employment Agreement. Paragraphs 7, 8 and 9 of the Employment Agreement
shall survive such Voluntary Termination of Consultant&#146;s employment with EFSC.
Consultant further agrees that the non-competition provisions provided for in
Paragraph 9.1 of the Employment Agreement and the non-solicitation provisions
contained in Paragraph 9.2 of the Employment Agreement shall be in force and be
binding upon Consultant during the term of this Agreement and for a one year
period following the termination of the Term of this Agreement. </FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>6. </FONT><B><U><FONT face=serif size=2>Indemnification</FONT></U></B><FONT face=serif size=2>. EFSC agrees to
indemnify, defend and hold harmless Consultant with respect to his prior
services as an employee, director and officer of EFSC as provided for in
Paragraph 11 of his Employment Agreement, and agrees to similarly indemnify,
defend and hold harmless Consultant with respect to the consulting services
provided for herein to the same extent that Consultant would be indemnified had
such services been provided in his capacity as an Officer and/or Director of
EFSC. If available at no additional cost to EFSC, Consultant's services pursuant
to this agreement shall be included within EFSC's directors and officers
insurance coverage. </FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>7. </FONT><B><U><FONT face=serif size=2>Assignment</FONT></U></B><FONT face=serif size=2>. This Agreement and the
rights and benefits hereunder may not be assigned by EFSC or Consultant;
provided, however, that Consultant may assign the right to receive the Retainer
and the obligation to provide consulting services pursuant to this Agreement to
a limited liability company or other entity in which Consultant owns 100% of the
equity, and provided that Consultant provides all the consulting services to
EFSC and its subsidiaries on behalf of such entity. Notwithstanding such
assignment, Consultant shall remain personally obligated pursuant to the
non-competition and non-solicitation provisions referred to in Paragraph 5
above. </FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>8. </FONT><B><U><FONT face=serif size=2>Miscellaneous</FONT></U></B><FONT face=serif size=2>. This Agreement
contains the complete understanding and agreement of the parties with respect to
the matters contained herein, and shall be construed pursuant to the laws of the
State of Missouri. All notices given pursuant to this Agreement shall be in
writing, and shall be deemed delivered if personally delivered, or delivered by
courier to the last known respective residential address or business address of
the party receiving such notice. </FONT></P>
<P align=left><FONT face=serif size=2><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>IN WITNESS WHEREOF, the undersigned
have executed this Agreement as of the date first stated above. </FONT></P>
<P align=left><FONT face=serif size=2>ENTERPRISE FINANCIAL SERVICES CORP
</FONT></P>
<P align=left>
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  <TR>
    <TD width="1%"><FONT size=2>By:&nbsp; </FONT></TD>
    <TD style="BORDER-BOTTOM: #000000 1pt solid" width="25%"><FONT size=2>/s/
      Peter F. Benoist</FONT></TD>
    <TD width="23%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </TD>
    <TD style="BORDER-BOTTOM: #000000 1pt solid" width="25%"><FONT size=2>/s/
      Kevin C. Eichner</FONT></TD>
    <TD width="25%">&nbsp;</TD></TR>
  <TR>
    <TD width="1%"></TD>
    <TD width="48%" colSpan=2><FONT size=2>Peter F. Benoist, Chairman of the
      Board </FONT></TD>
    <TD width="50%" colSpan=2><FONT size=2>Kevin C. Eichner </FONT></TD></TR>
  <TR>
    <TD width="1%">&nbsp;</TD>
    <TD width="48%" colSpan=2></TD>
    <TD width="50%" colSpan=2></TD></TR></TABLE><BR>
<P align=center><FONT face=serif size=2>2</FONT></P>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>exhibit99-1.htm
<DESCRIPTION>TEXT OF PRESS RELEASE, DATED MARCH 3, 2008.
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<P align=right><B><FONT face=serif size=2>Exhibit 99.1 </FONT></B></P>
<P align=right>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT face=serif size=2>For more
information contact: <BR>Kevin Eichner or Peter Benoist (314) 725-5500
<BR>Melissa Sturges (816) 221-7500 or Ann Marie Mayuga (314) 469-4798
</FONT></P>

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    <TD style="BORDER-TOP: #000000 1pt solid" width="100%">&nbsp;</TD></TR>
  <TR>
    <TD width="100%">
      <P align=center><B><FONT face=serif size=2>EICHNER RESIGNING AS CEO TO
      BECOME UNIVERSITY PRESIDENT </FONT></B></P>
      <P align=center><B><FONT face=serif size=2>BENOIST NAMED AS SUCCESSOR
      EFFECTIVE MAY 1, 2008 </FONT></B></P></TD></TR>
  <TR>
    <TD style="BORDER-BOTTOM: #000000 1pt solid" width="100%">&nbsp;</TD></TR></TABLE>
<P align=left><FONT face=serif size=2>St. Louis, March 3, 2008. Enterprise
Financial Services Corp (NASDAQ: EFSC) announced today that Kevin C. Eichner is
resigning his position as President and CEO of EFSC effective May 1, 2008 in
order to accept a position as the twenty-first president of Ottawa University,
headquartered in Ottawa, Kansas. Simultaneously, Enterprise announced that Peter
F. Benoist, currently Chairman of the Board, Executive Vice President of the
holding company and Chairman and CEO of Enterprise Bank &amp; Trust, has been
named to succeed Eichner as EFSC&#146;s President and CEO effective May 1, 2008. Also
on that date, James J. Murphy, Jr., currently the lead director for EFSC, will
assume the role of non-executive Chairman of the Board of EFSC. Murphy is
Chairman and CEO of Murphy Companies, one of the largest mechanical contracting
firms in the United States.</FONT></P>
<P align=left><FONT face=serif size=2>Benoist joined Enterprise in October of
2002 in his current capacity. Formerly, he had been a Director and Executive
Vice President of Mark Twain Bancshares and Chairman and CEO of Mark Twain&#146;s $3
billion banking operations in Missouri, Illinois and Kansas, where his
responsibilities included all commercial and retail banking activities, as well
as Mark Twain&#146;s $1 billion Trust Division. Following Mark Twain&#146;s acquisition by
Mercantile Bancorp., Benoist served as Senior Executive Vice President and Chief
Operating Officer of Mercantile&#146;s St. Louis Bank, a $12 billion banking
operation and the largest banking subsidiary in the Mercantile bank system.
Following the acquisition of Mercantile by Firstar Bank, now US Bancorp, Benoist
served as Regional Chairman and Market President for the St. Louis market.
Benoist holds a BA degree and a MBA in finance from St. Louis University. He
currently serves on several Boards, including Maryville University and Cardinal
Glennon Hospital Foundation. </FONT></P>
<P align=left><FONT face=serif size=2>Eichner will continue to serve Enterprise
as Vice Chairman of the Board of Directors of EFSC, Chairman of the Board of
Enterprise Trust, and as a member of the Board of Enterprise Bank &amp; Trust of
Arizona (in formation). He will also continue to provide consulting services to
EFSC and its subsidiaries after his tenure as President and CEO of EFSC in an
arrangement permitted under the terms of his agreement with Ottawa University.
</FONT></P>
<P align=left><FONT face=serif size=2>&#147;As a co-founder of Enterprise in 1988, it
has been a tremendous privilege to have served EFSC as its CEO these past six
years. Our people have delivered outstanding results and have succeeded in
establishing Enterprise as a high growth, high performing winner in the
marketplace and as a NASDAQ stock. My decision to shift careers is purely
personal and is related to a long-held, faith-based belief that if one is called
to dedicate himself ultimately to a life of service, he should heed that call.&#148;
</FONT></P>
<P align=left><FONT face=serif size=2>Benoist commented, &#147;I look forward to
continuing to position Enterprise as the premier provider of financial services
to privately held businesses in our markets. We are fortunate to have had the
benefit of Kevin&#146;s leadership over the past six years and we wish him all the
best in his role as President of Ottawa University.&#148; </FONT></P>
<P align=left><FONT face=serif size=2>Mr. Murphy, Chairman-elect of the EFSC
Board, added, &#147;Kevin has served the Company very well as CEO, leading it through
a period of record growth and success. At the same time we are thrilled to have
a ready and able successor in Peter Benoist. I&#146;ve known Peter for over 30 years,
and they just don&#146;t come any better. We expect a very smooth management
transition given Peter&#146;s close working relationship with both Kevin and the
board.&#148;</FONT></P>
<P align=left><FONT face=serif size=2>Enterprise Financial operates commercial
banking and wealth management businesses in metropolitan St. Louis and Kansas
City and a loan production office in Phoenix, Arizona with the intent to
establish a de novo Arizona state bank charter in 2008. The Company is primarily
focused on serving the needs of privately held businesses, their owner families,
executives and professionals.</FONT></P>
<P align=center><FONT face=serif size=2>#&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
#&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # </FONT></P>
<P align=left><FONT face=serif size=2>Readers should note that in addition to
the historical information contained herein, this press release contains
forward-looking statements, which are inherently subject to risks and
uncertainties that could cause actual results to differ materially from those
contemplated from such statements. We use the words &#147;expect&#148; and &#147;intend&#148; and
variations of such words and similar expressions in this communication to
identify such forward-looking statements. Factors that could cause or contribute
to such differences include, but are not limited to, burdens imposed by federal
and state regulations of banks, credit risk, exposure to local and national
economic conditions, risks associated with rapid increase or decrease in
prevailing interest rates, effects of mergers and acquisitions, effects of
critical accounting policies and judgments, legal and regulatory developments
and competition from banks and other financial institutions, as well as other
risk factors described in Enterprise Financial&#146;s 2006 Annual Report on Form
10-K. Forward-looking statements speak only as of the date they are made, and
the Company undertakes no obligation to update them in light of new information
or future events. </FONT></P>
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