EX-21 4 d258274dex21.htm EX-21

EXHIBIT 21

SUBSIDIARIES OF

ESCO TECHNOLOGIES INC.

NAME |  | STATE OR JURISDICTION OF INCORPORATION OR ORGANIZATION |  | NAME UNDER WHICH IT DOES BUSINESS
Aclara Power-Line Systems Inc. |  | Missouri |  | Same
Aclara RF Systems Inc. |  | Ohio |  | Same
Aclara Software Inc. |  | Massachusetts |  | Same
Beijing Lindgren ElectronMagnetic Technology Co., Ltd. |  | People’s Republic of China |  | Same
Crissair, Inc. |  | California |  | Same
Distribution Control Systems Caribe, Inc. |  | Puerto Rico |  | Same
Doble Engineering Company |  | Massachusetts |  | Same
Doble Lemke AG |  | Switzerland |  | Same
Doble Lemke GmbH |  | Germany |  | Same
Doble PowerTest Limited |  | United Kingdom |  | Same
Doble TransiNor AS |  | Norway |  | Same
EMV Elektronische Messgeräte Vertriebs-GmbH |  | Germany |  | Same
ESCO Technologies Holding Inc. |  | Delaware |  | Same
ETS Lindgren Engineering India Private Limited |  | India |  | Same
ETS Lindgren Japan, Inc. |  | Japan |  | Same
ETS Lindgren Limited |  | England |  | Same
ETS-Lindgren, L.P. |  | Texas |  | Same and Acoustic Systems
ETS-Lindgren OY |  | Finland |  | Same
Lindgren R.F. Enclosures, Inc. |  | Illinois |  | Same and ETS-Lindgren
PTI Technologies Inc. |  | Delaware |  | Same
Thermoform Engineered Quality LLC |  | Delaware |  | Same
VACCO Industries |  | California |  | Same