<DOCUMENT>
<TYPE>EX-21
<SEQUENCE>5
<FILENAME>c35676_ex21.txt
<TEXT>


                                                                      EXHIBIT 21

LIST OF SIGNIFICANT SUBSIDIARIES

Dyn Specialty Contracting, Inc.
MES Holdings Corporation
EMCOR Construction Services, Inc.
EMCOR International, Inc.
EMCOR Mechanical/Electrical Services (East), Inc.
EMCOR Mechanical/Electrical Services (Midwest), Inc.
EMCOR Mechanical/Electrical Services (West), Inc.
EMCOR Mechanical/Electrical Services (South), Inc.
EMCOR (UK) Limited
EMCOR Drake & Scull Group plc
EMCOR Facilities Services, Inc.
Monumental Investment Corporation
EMCOR-CSI Holding Co.


</TEXT>
</DOCUMENT>