EXHIBIT 21 SUBSIDIARIES OF REGISTRANT State or Country of Subsidiaries of Registrant Incorporation or Organization -------------------------- ----------------------------- Leviton Manufacturing Co., Inc. Delaware Thomas & Betts Caribe, Inc. Delaware Thomas & Betts International, Inc. Delaware Thomas & Betts Limited Canada Thomas & Betts Commander LP Canada The Registrant has omitted 8 subsidiaries operating in the U.S. and 60 subsidiaries operating in foreign countries. The Registrant's subsidiaries are in the same businesses.