Exhibit 21 SUBSIDIARY PLACE OF INCORPORATION ---------- ---------------------- Clare Capital, Inc. Delaware Clare Components, Inc. Delaware Clare Electronics, Inc. Delaware Clare Instruments, Inc. Delaware Clare Services, Inc. Delaware Clare Systems, Inc. Delaware 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