EX-21.1 4 ter-ex21_1.htm EX-21.1

Exhibit 21.1

Present Subsidiaries

Entity Name: |  | State or Jurisdiction Of Incorporation |  | Percentage of Voting Securities Owned |
Teradyne (Asia) Pte., Ltd. |  | Singapore |  |  | 100 | %*
Teradyne Canada Limited |  | Canada |  |  | 100 | %
Teradyne de Costa Rica S.R.L. |  | Costa Rica |  |  | 100 | %
Teradyne GmbH |  | Germany |  |  | 100 | %*
Teradyne Holdings Denmark ApS |  | Denmark |  |  | 100 | %*
Teradyne International Holdings B.V. |  | The Netherlands |  |  | 100 | %
Teradyne International UK Holdings Ltd. |  | United Kingdom |  |  | 100 | %*
Teradyne Israel Limited |  | Israel |  |  | 100 | %
Teradyne Italia SrL |  | Italy |  |  | 100 | %*
Teradyne K.K. |  | Japan |  |  | 100 | %
Teradyne Korea Ltd. |  | Korea |  |  | 100 | %*
Teradyne Limited |  | United Kingdom |  |  | 100 | %*
Teradyne Malaysia Sdn. Bhd. |  | Malaysia |  |  | 100 | %*
Teradyne Philippines Limited |  | Delaware |  |  | 100 | %
Teradyne Robotics Holdings Denmark ApS |  | Denmark |  |  | 100 | %*
Teradyne SAS |  | France |  |  | 100 | %
Teradyne (Shanghai) Co., Ltd |  | Peoples Republic of China |  |  | 100 | %*
Teradyne Taiwan LLC |  | Delaware |  |  | 100 | %*
Teradyne Thailand Limited |  | Delaware |  |  | 100 | %
Device Interface Solutions Technology (Shanghai) Co., Ltd |  | Peoples Republic of China |  |  | 100 | %*
DIS Tech America, LLC |  | Delaware |  |  | 100 | %
DIS Tech Italia S.r.l. |  | Italy |  |  | 100 | %
DIS Tech Japan, G.K. |  | Japan |  |  | 100 | %*
DIS Tech Philippines, LLC |  | Delaware |  |  | 100 | %
DIS Tech Singapore Pte. Ltd. |  | Singapore |  |  | 100 | %*
DIS Tech Taiwan LLC |  | Delaware |  |  | 100 | %
GenRad, LLC |  | Delaware |  |  | 100 | %
Herco Technology Corp. |  | California |  |  | 100 | %
P.L.S.T., Inc. (f/k/a Perception Laminates, Inc.) |  | California |  |  | 100 | %
Eagle Test Systems, Inc. |  | Delaware |  |  | 100 | %
Nextest Systems Corporation |  | Delaware |  |  | 100 | %
Lemsys SA |  | Switzerland |  |  | 100 | %*
LitePoint Corporation |  | Delaware |  |  | 100 | %
LitePoint Europe A/S |  | Denmark |  |  | 100 | %*
LitePoint Technology Limited |  | Hong Kong |  |  | 100 | %*
LitePoint Technology (Shanghai) Company Ltd. |  | Peoples Republic of China |  |  | 100 | %*
LitePoint Vietnam Limited |  | Socialist Republic of Vietnam |  |  | 100 | %*
Mobile Industrial Robots A/S |  | Denmark |  |  | 100 | %*
Mobile Industrial Robots, Inc. |  | Delaware |  |  | 100 | %*
MiR Global, Inc. |  | Delaware |  |  | 100 | %
MiR Robots (Shanghai) Co. Ltd. |  | Peoples Republic of China |  |  | 100 | %*
Universal Robots A/S |  | Denmark |  |  | 100 | %*
Universal Robots (India) Pte. Ltd. |  | India |  |  | 100 | %*
Universal Robots (Shanghai) Co. Ltd. |  | Peoples Republic of China |  |  | 100 | %*
Universal Robots (USA), Inc. |  | Delaware |  |  | 100 | %*
Teradyne Robots (Germany) GmbH |  | Germany |  |  | 100 | %*
Teradyne Robots (Spain) S.L. |  | Spain |  |  | 100 | %*
Universal Robots Mexico S.A. de C.V. |  | Mexico |  |  | 100 | %*
Universal Robots (UK) Ltd. |  | United Kingdom |  |  | 100 | %*
UR Technology (Shanghai) Co. Ltd. |  | People Republic of China |  |  | 100 | %*

* | Indirect subsidiaries whose voting securities are 100% controlled by Teradyne, Inc.