EXHIBIT 21.1 ------------ SUBSIDIARIES OF THE REGISTRANT PLACE OF SUBSIDIARY INCORPORATION D/B/A NAME - -------------------------------------------------------------------------------- Personics Corporation Delaware, USA Personics Corporation Datawatch Technologies Delaware, USA Datawatch Technologies Corporation Corporation Auxilor, Inc. Delaware, USA Auxilor, Inc. Datawatch International England and Wales Datawatch International Limited Limited Datawatch GmbH* Germany Datawatch GmbH Datawatch France SARL* France Datawatch France SARL Datawatch Pty Ltd.* Australia Datawatch Pty Ltd. Datawatch Europe Limited* England and Wales Datawatch Europe Limited * All of the shares of capital stock of Datawatch GmbH, Datawatch France SARL, Datawatch Pty Ltd. and Datawatch Europe Limited are owned by Datawatch International Limited.