EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT Each of the below listed subsidiaries is 100% directly or indirectly owned by Concurrent Computer Corporation except as otherwise indicated, and all are included in the consolidated financial statements. STATE OR OTHER JURISDICTION OF NAME OF SUBSIDIARY INCORPORATION/ORGANIZATION - ----------------------------------------------------- -------------------------- Concurrent Computer Asia Corp Delaware Concurrent Computer Belgium B.V./S.A. Belgium Concurrent Computer Canada, Inc. Canada Concurrent Computer Corp. (France) Delaware Concurrent Computer Corp. Pty. Ltd. Australia Concurrent Computer Corporation, Ltd. United Kingdom Concurrent Computer Far East Pte. Ltd. Singapore Concurrent Computer France S.A. France Concurrent Computer GmbH Germany Concurrent Computer Hispania, S.A. Spain Concurrent Computer Holding Co. Ltd. United Kingdom Concurrent Computer Hong Kong Limited Hong Kong Concurrent Computer New Zealand New Zealand Concurrent Holding Corporation Delaware Concurrent Nippon Corporation Japan Concurrent Securities Corp. Massachusetts Harris Computer Systems Corporation Technology, Inc. Florida 70