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EXHIBIT 21

Subsidiaries of ESCO Technologies Inc.

The following list omits certain of the Company’s subsidiaries which, if considered in the aggregate as a single subsidiary, would not, as of the end of the year covered by this Report, constitute a “significant subsidiary” as defined in SEC Regulation S-X.

Name

    

State or Jurisdiction
of Incorporation
or Organization

    

Name(s) Under Which
It Does Business

Beijing Lindgren E.M. Technology Co., Ltd.

People’s Republic of China

Same; also ETS-Lindgren

Crissair, Inc.

California

Same

Doble Engineering Company

Massachusetts

Same

Doble PowerTest Limited

England

Same

EMS Development Corporation

New York

Same; also ESCO Maritime Solutions

ESCO International Holding Inc.

Delaware

Same

ESCO Maritime Solutions Ltd.

England

Same

ESCO Technologies Holding LLC

Delaware

Same

ESCO UK Global Holdings Ltd.

England

Same

ETS-Lindgren Inc.

Illinois

Same

ETS-Lindgren OY

Finland

Same

ETS-Lindgren Technology (Tianjin) Co., Ltd.

People’s Republic of China

Same; also ETS-Lindgren

Globe Composite Solutions, LLC

Delaware

Same

I.S.A. – Altanova Group S.r.l.

Italy

Same; also Altanova

Mayday Manufacturing Co.

Texas

Same

Morgan Schaffer Ltd.

Quebec

Same

MPE Limited

England

Same

NRG Systems, Inc.

Vermont

Same

PMES I Limited

England

Same; also ESCO Maritime Solutions

PTI Technologies Inc.

Delaware

Same

Westland Technologies, Inc.

California

Same; also Globe Composite Solutions