EXHIBIT 21 C.P. CLARE CORPORATION AND SUBSIDIARIES LIST OF SUBSIDIARIES SUBSIDIARY PLACE OF INCORPORATION ---------- ---------------------- Clare Capital, Inc. New York Clare Capital, Inc. Delaware Clare Components, Inc. New York Clare Components, Inc. Delaware Clare Electronics, Inc. New York Clare Electronics, Inc. Delaware Clare Instruments, Inc. New York Clare Instruments, Inc. Delaware Clare Services, Inc. New York Clare Services, Inc. Delaware Clare Systems, Inc. New York Clare Systems, Inc. Delaware Clare Technologies, Inc. New York Clare Technologies, Inc. Delaware Clare Canada, Ltd. Ontario, Canada Clare France S. A. R. L. France C.P. Clare Electronics GmbH Germany C.P. Clare Foreign Sales Corporation U.S. Virgin Islands C.P. Clare International N.V. Belgium C.P. Clare Mexicana S.A. de C.V. Mexico Clare Technologies (Taiwan), Inc. Taiwan