1 EXHIBIT 21 SUBSIDIARIES OF INSTRON CORPORATION NAME JURISDICTION OF ORGANIZATION IRT - II Trust Massachusetts Instron Realty Trust Massachusetts Instron Japan Company, Ltd. Massachusetts Instron Asia Limited Massachusetts Instron Canada Inc. Canada Instron Foreign Sales Corporation Jamaica Equipamentos Cientificos Instron, Ltda. Brazil Instron/Lawrence Corporation Pennsylvania Instron Limited United Kingdom Instron S.A. France Instron Proprietary, Ltd. Australia Instron International, Ltd. United Kingdom Severn Furnaces, Ltd. United Kingdom Instron Singapore Pte Limited Singapore Instron Holdings, Ltd. United Kingdom Instron Wolpert GmbH Germany Instron Korea Co. Ltd. Korea Instron Schenck Testing Systems Delaware Instron Schenck Testing Systems Corp. Massachusetts Instron Schenck Testing Systems - GmbH Germany