Exhibit 21 SUBSIDIARIES OF THE COMPANY Subsidiary Location Standard Microsystems Corporation (Asia) Taipei, Taiwan SMC Australia Pty. Ltd. Sydney, Australia Standard Microsystems Corporation (Canada) Oakville, Ontario, Canada Standard Microsystems (Europe) Ltd. London, England SMC France, Inc. St. Germain-en-Laye, France Standard Microsystems GmbH Munich, Germany SMC Massachusetts, Inc. Andover, Massachusetts SMC de Mexico SA de CV Mexico DF, Mexico SMC North America, Inc. Various States SMC Singapore, Inc. Singapore SMC International Ltd. Christ Church, Barbados