EX-21.01 4 a2182839zex-21_01.htm EXHIBIT 21.01
QuickLinks -- Click here to rapidly navigate through this document


EXHIBIT 21.01


LIST OF REGISTRANT'S SUBSIDIARIES

SUBSIDIARY NAME

  JURISDICTION OF ORGANIZATION
FormFactor Europe Limited   United Kingdom
FormFactor Germany GmbH   Germany
FormFactor Hungary Licensing LLC   Hungary
FormFactor International, Inc.    Delaware, United States
FormFactor, KK   Japan
FormFactor Korea, Inc.    South Korea
FormFactor Singapore Pte. Ltd.    Singapore



QuickLinks

LIST OF REGISTRANT'S SUBSIDIARIES