<DOCUMENT>
<TYPE>EX-21
<SEQUENCE>4
<FILENAME>dex21.txt
<DESCRIPTION>LIST OF SUBSIDIARY
<TEXT>
<PAGE>

Exhibit 21

                              LIST OF SUBSIDIARIES*

                                                  STATE OR OTHER JURISDICTION OF
NAME OF SUBSIDIARY                                INCORPORATION OR ORGANIZATION
------------------                                -----------------------------

Ecogen-Bio Inc.                                                  Delaware

Ecogen Investments Inc.                                          Delaware

Ecogen Technologies I Incorporated                               Delaware

*    All of the subsidiaries listed above are wholly-owned subsidiaries with the
     exception of Ecogen Technologies I Incorporated of which Ecogen Inc. owns
     approximately 70% of the outstanding common stock.


</TEXT>
</DOCUMENT>