EXHIBIT 21 Base Ten Systems, Inc. Subsidiaries of Registrant The following are wholly-owned subsidiaries of the Registrant: State or Jurisdiction Name of Organization ----- --------------- Base Ten Software, Inc. New Jersey (a) Base Ten FlowStream, Inc. New Jersey (a) Base Ten Systems, Ltd. United Kingdom (a) Base Ten Software, Ltd. Ireland (a) BTS Software GmbH Germany (a) Base Ten Systems NV Belgium (a) Base Ten Aerospace and Communications, Inc. New Jersey (b) Base Ten of Canada, Ltd. Canada (b) Base Ten Investment, Co. Delaware (b) Base Ten International Sales, Ltd. Jamaica (b) (a) Financial statements included in Consolidated Financial Statements of Registrant (b) Dormant