<SUBMISSION>
<ACCESSION-NUMBER>0001206774-09-000082
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20090126
<ITEMS>8.01
<ITEMS>9.01
<FILING-DATE>20090126
<DATE-OF-FILING-DATE-CHANGE>20090126
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>ENTERPRISE FINANCIAL SERVICES CORP
<CIK>0001025835
<ASSIGNED-SIC>6022
<IRS-NUMBER>431706259
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-15373
<FILM-NUMBER>09546148
</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>UNITED STATES<BR></FONT></B><B><FONT face=serif>SECURITIES AND EXCHANGE COMMISSION</FONT></B><B><FONT face=serif size=5><BR></FONT></B><B><FONT face=serif>Washington, D.C. 20549</FONT></B></P>
<P align=center><B><FONT face=serif size=5>FORM 8-K</FONT></B><FONT face=serif>
</FONT></P>
<P align=center><B><FONT face=serif>CURRENT REPORT</FONT></B></P>
<P align=center><B><FONT face=serif>Pursuant to Section 13 or 15(d) of
<BR></FONT></B><B><FONT face=serif>The Securities Exchange Act of
1934</FONT></B></P>
<P align=center><FONT face=serif size=2>Date of Report (Date of earliest event
reported)<BR>January 26, 2009</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><FONT face=serif> </FONT></P>
<P>
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  <TR vAlign=bottom>
    <TD noWrap align=center width="33%"><B><FONT face=serif size=2>Delaware</FONT></B> </TD>
    <TD noWrap align=center width="33%"><B><FONT face=serif size=2>001-15373</FONT></B> </TD>
    <TD noWrap align=center width="33%"><B><FONT face=serif size=2>43-1706259</FONT></B> </TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=center width="33%"><FONT face=serif size=1>(State or
      Other Jurisdiction</FONT> </TD>
    <TD noWrap align=center width="33%"><FONT face=serif size=1>(Commission</FONT> </TD>
    <TD noWrap align=center width="33%"><FONT face=serif size=1>(IRS
      Employer</FONT> </TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=center width="33%"><FONT face=serif size=1>of
      Incorporation)</FONT> </TD>
    <TD noWrap align=center width="33%"><FONT face=serif size=1>File
      Number)</FONT> </TD>
    <TD noWrap align=center width="33%"><FONT face=serif size=1>Identification
      No.)</FONT> </TD></TR></TABLE><BR>
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>

  <TR vAlign=bottom>
    <TD noWrap align=center width="50%"><B><FONT face=serif size=2>150 N.
      Meramec, St. Louis, Missouri</FONT></B> </TD>
    <TD noWrap align=center width="49%"><B><FONT face=serif size=2>63105</FONT></B> </TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=center width="50%"><FONT face=serif size=1>(Address of
      principal executive offices)</FONT> </TD>
    <TD noWrap align=center width="49%"><FONT face=serif size=1>(Zip
      Code)</FONT> </TD></TR></TABLE><BR>
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  <TR vAlign=bottom>
    <TD noWrap align=center width="99%"><FONT face=serif size=2>Registrant&#146;s
      telephone number, including area code</FONT> </TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=center width="99%"><STRONG><FONT size=2>(314) <FONT face=serif>725-5500</FONT></FONT></STRONG> </TD></TR>
  <TR>
    <TD align=center width="99%">&nbsp; </TD></TR>
  <TR vAlign=bottom>
    <TD style="BORDER-BOTTOM: #000000 1pt solid" align=center width="99%"><FONT face=serif size=2>Not applicable</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>
  </TD></TR></TABLE>
<P align=left><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><FONT face=serif>
</FONT></P>
<P align=justify>
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  <TR>
    <TD vAlign=top noWrap><FONT face=wingdings size=2>o</FONT></TD>
    <TD vAlign=top noWrap>&nbsp;&nbsp;&nbsp;&nbsp; </TD>
    <TD vAlign=top width="100%"><FONT face=serif size=2>Written communications
      pursuant to Rule 425 under the Securities Act (17 CFR
230.425)</FONT></TD></TR>
  <TR>
    <TD vAlign=top width="100%" colSpan=3>&nbsp;</TD></TR>
  <TR>
    <TD vAlign=top noWrap><FONT face=Wingdings size=2>o</FONT></TD>
    <TD vAlign=top noWrap></TD>
    <TD vAlign=top width="100%"><FONT face=serif size=2>Soliciting material
      pursuant to Rule 14a-12 under the Exchange Act (17 CFR
    240.14a-12)</FONT></TD></TR>
  <TR>
    <TD vAlign=top width="100%" colSpan=3>&nbsp;</TD></TR>
  <TR>
    <TD vAlign=top noWrap><FONT face=Wingdings size=2>o</FONT></TD>
    <TD vAlign=top noWrap></TD>
    <TD vAlign=top width="100%"><FONT face=serif size=2>Pre-commencement
      communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR
      240.14d-2(b))</FONT></TD></TR>
  <TR>
    <TD vAlign=top width="100%" colSpan=3>&nbsp;</TD></TR>
  <TR>
    <TD vAlign=top noWrap><FONT face=Wingdings size=2>o</FONT></TD>
    <TD vAlign=top noWrap></TD>
    <TD vAlign=top width="100%"><FONT face=serif size=2>Pre-commencement
      communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR
      240.13e-4(c))</FONT></TD></TR>
  <TR>
    <TD width="100%" colSpan=3>&nbsp; </TD></TR></TABLE><BR>
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<P align=left><FONT face=serif size=2>ITEM 8.01 Other Events </FONT></P>
<P align=left><FONT face=serif size=2>On January 26, 2009, Registrant issued a
press release announcing it intends to release earnings for its fourth quarter
and year ended December 31, 2008 on January 30, 2009. The Company had originally
intended to make its release on January 27, 2009. </FONT></P>
<P align=left><FONT face=serif size=2>ITEM 9.01 Financial Statements and
Exhibits </FONT></P>
<P align=left><FONT face=serif size=2>(c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exhibits </FONT></P>
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  <TR vAlign=bottom>
    <TD noWrap align=left width="2%"><FONT face=serif size=2>Exhibit
      No.</FONT> </TD>
    <TD noWrap align=left width="5%">&nbsp;&nbsp;&nbsp;&nbsp; </TD>
    <TD noWrap align=left width="93%"><FONT face=serif size=2>Description</FONT> &nbsp;</TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=left width="2%" bgColor=#c0c0c0><FONT face=serif size=2>99.1</FONT> </TD>
    <TD noWrap align=left width="5%" bgColor=#c0c0c0></TD>
    <TD noWrap align=left width="93%" bgColor=#c0c0c0><FONT face=serif size=2>Press Release dated January 26, 2009</FONT>&nbsp;
</TD></TR></TABLE><BR>
<P align=center><FONT face=serif size=2>SIGNATURE </FONT></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, thereto duly authorized. </FONT></P>
<P align=left><FONT face=serif size=2>Date: January 26, 2009 </FONT></P>
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  <TR vAlign=bottom>
    <TD noWrap align=left width="50%"></TD>
    <TD noWrap align=left width="50%"><FONT face=serif size=2>ENTERPRISE
      FINANCIAL SERVICES CORP</FONT>&nbsp; </TD></TR>
  <TR>
    <TD width="50%"></TD>
    <TD width="50%">&nbsp; </TD></TR>
  <TR>
    <TD width="50%"></TD>
    <TD width="50%">&nbsp; </TD></TR>
  <TR>
    <TD width="50%"></TD>
    <TD width="50%">&nbsp; </TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=left width="50%"></TD>
    <TD style="BORDER-BOTTOM: #000000 1pt dashed" noWrap align=left width="50%"><FONT face=serif size=2>/s/Deborah N. Barstow</FONT> </TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=left width="50%"></TD>
    <TD noWrap align=left width="50%"><FONT face=serif size=2>Deborah N.
      Barstow</FONT>&nbsp; </TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=left width="50%"></TD>
    <TD noWrap align=left width="50%"><FONT face=serif size=2>Senior Vice
      President &amp; Controller</FONT>&nbsp; </TD></TR></TABLE><BR>
<P align=center><FONT face=serif size=2>INDEX TO EXHIBITS </FONT></P>
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  <TR vAlign=bottom>
    <TD style="BORDER-BOTTOM: #000000 1pt dotted" noWrap align=left width="2%"><FONT face=serif size=2>Exhibit No.</FONT> </TD>
    <TD noWrap align=left width="5%">&nbsp;&nbsp;&nbsp;&nbsp; </TD>
    <TD style="BORDER-BOTTOM: #000000 1pt dotted" noWrap align=left width="6%"><FONT face=serif size=2>Description</FONT> </TD>
    <TD noWrap align=left width="87%">&nbsp;</TD></TR>
  <TR vAlign=bottom>
    <TD noWrap align=left width="2%" bgColor=#c0c0c0><FONT face=serif size=2>99.1</FONT>&nbsp; </TD>
    <TD noWrap align=left width="5%" bgColor=#c0c0c0></TD>
    <TD noWrap align=left width="93%" bgColor=#c0c0c0 colSpan=2><FONT face=serif size=2>Press Release dated January 26, 2009*</FONT>
  </TD></TR></TABLE><BR>
<P align=left><FONT face=serif size=2>*This exhibit is furnished to, but not
filed with, the Commission by inclusion herein. </FONT></P>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>exhibit99-1.htm
<DESCRIPTION>PRESS RELEASE DATED JANUARY 26, 2009*
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<P align=right><B><FONT face=serif size=2>Exhibit 99.1 </FONT></B></P>
<P align=right>
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    <TD style="BORDER-BOTTOM: #000000 1pt solid" width="50%">&nbsp;</TD>
    <TD style="BORDER-BOTTOM: #000000 1pt solid" align=right width="50%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT face=serif size=2>For more
      information contact:<BR>Peter Benoist or Frank Sanfilippo (314) 725
      5500<BR>Jerry Mueller (314) 512-7251 or Ann Marie Mayuga
      (314)4854390<BR>&nbsp; </FONT></TD></TR></TABLE>
<P align=left><FONT face=serif size=2>St. Louis, January 26, 2009. Enterprise
Financial Services Corp (NASDAQ: EFSC) announced that it intends to release
earnings for its fourth quarter and year ended December 31, 2008 on January 30,
2009. The company originally scheduled its release for January 26,
2009.</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 AZ. Enterprise 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; # </FONT></P>
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