EXHIBIT 21
L-3 COMMUNICATIONS HOLDINGS, INC. AND SUBSIDIARIES
NAME OF SUBSIDIARY STATE OF ORGANIZATION
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6292151 Canada Inc. Canada
ACSS - NZSC Limited New Zealand
Apcom, Inc. Maryland
Army Fleet Support, LLC Delaware
Aviation Communications & Surveillance Systems, LLC Delaware
Aydin Foreign Sales Limited Guam
Aydin Yazilim ve Elektronik Sanayi A.S. Turkey
Broadcast Sports Inc. Delaware
Canco, LLC Delaware
Cayenta, Inc. Delaware
Cayenta Operating LLC Delaware
Datron Transworld Communications International Ltd. U.S. Virgin Islands
D.P. Associates Inc. Virginia
ELAC Nautik Unterstutzungska(beta)e GmbH Federal Republic of Germany
Electrodynamics, Inc. Arizona
Electronic Space Systems International Corp. U.S. Virgin Islands
ESSCO Collins Limited Republic of Ireland
EuroAtlas Gesellschaft fur Leistungselektronik mbH Federal Republic of Germany
FAST Holdings Limited United Kingdom
Forfeiture Support Associates, LLC Delaware
Global Military Aircraft Systems, LLC Delaware
Henschel Inc. Delaware
2
Honeywell TCAS Inc. Delaware
Horizons Technology International, Ltd. Barbados
Hygienetics Environmental Services, Inc. Delaware
Intelligence Data Systems, Inc. Virginia
International Systems LLC California
Interstate Electronics Corporation California
JovyAtlas Elektrische Umformtechnik GmbH Federal Republic of Germany
KDI Precision Products, Inc. Delaware
L-3 Canada Acquisition Inc. Canada
L-3 Communications Advanced Laser Systems Technology, Inc. Florida
L-3 Communications Aeromet, Inc. Oregon
L-3 Communications AIS GP Corporation Delaware
L3 Communications Australia Proprietary Limited Australia
L3 Communications Australia Pty Ltd Australia
L-3 Communications Avionics Systems, Inc. Delaware
L-3 Communications Avisys Corporation Texas
L-3 Communications Aydin Corporation Delaware
L-3 Communications Canada Inc. Canada
L-3 Communications CE Holdings, Inc. Delaware
L-3 Communications Cincinnati Electronics Corporation Ohio
L-3 Communications Corporation Delaware
L-3 Communications CSI, Inc. California
L-3 Communications ELAC Nautik GmbH Federal republic of Germany
L-3 Communications Electron Technologies, Inc. Delaware
L-3 Communications Electronic Systems Inc. Canada
3
L-3 Communications EO/IR, Inc. Florida
L-3 Communications ESSCO, Inc. Delaware
L-3 Communications Flight Capital LLC Delaware
L-3 Communications Flight International Aviation LLC Delaware
L-3 Communications Global Network Solutions U.K. Ltd. United Kingdom
L-3 Communications Government Services, Inc. Virginia
L-3 Communications Holding GmbH Federal Republic of Germany
L-3 Communications Hong Kong Limited Hong Kong
L-3 Communications ILEX Systems, Inc. Delaware
L-3 Communications India Private Limited India
L-3 Communications InfraredVision Technology Corporation California
L-3 Communications Integrated Systems L.P. Delaware
L-3 Communications Investments Inc. Delaware
L-3 Communications Italy S.r.l. Republic of Italy
L-3 Communications Klein Associates, Inc. Delaware
L-3 Communications Korea Corporation South Korea
L-3 Communications Malaysia Sdn. Bhd. Malaysia
L-3 Communications MAPPS Inc. Canada
L-3 Communications MAPPS Investments, LLC Delaware
L-3 Communications MAPPS Malaysia Sdn.Bhd. Malaysia
L-3 Communications Marine Holdings AS Norway
L-3 Communications Marine Systems UK Ltd. United Kingdom
L-3 Communications MAS (Canada) Inc. Canada
L-3 Communications MAS (US) Corporation Delaware
L-3 Communications Mobile-Vision, Inc. New Jersey
4
L-3 Communications Navigation AS Norway
L-3 Communications Security and Detection Systems, Inc. Delaware
L-3 Communications Singapore Pte Ltd Singapore
L-3 Communications Sonoma EO, Inc. California
L-3 Communications Titan Corporation Delaware
L-3 Communications U.K. Ltd. United Kingdom
L-3 Communications Valmarine AS Norway
L-3 Communications Vector International Aviation LLC Delaware
L-3 Communications Vertex Aerospace LLC Delaware
L-3 Communications Westwood Corporation Nevada
LinCom Wireless, Inc. Delaware
L-Tres Comunicaciones Costa Rica, S.A. Costa Rica
MCTI Acquisition Corporation Maryland
Medical Education Technologies, Inc. Delaware
Microdyne Communications Technologies Incorporated Maryland
Microdyne Corporation Maryland
Microdyne Ltd. U.S. Virgin Islands
Microdyne Outsourcing Incorporated Maryland
MPRI, Inc. Delaware
MPRI International Services, Ltd. Bermuda
MVT Equity LLC Delaware
Narda Safety Test Solutions GmbH Federal Republic of Germany
Pac Ord Inc. Delaware
PMM Costruzioni Electtroniche Centro Misure Radioelettriche S.r.l. Republic of Italy
Power Paragon (Deutschland) Holding GmbH Federal Republic of Germany
5
Power Paragon, Inc. Delaware
Procom Services, Inc. California
Shellco, Inc. Delaware
Spar Aerospace Limited Canada
SPD Electrical Systems, Inc. Delaware
SPD Switchgear Inc. Delaware
Storm Control Systems Limited United Kingdom
SYColeman Corporation Florida
Titan Africa, Inc. Delaware
Titan Deutschland GmbH Germany
Titan Facilities, Inc. Virginia
Titan Italia Srl Republic of Italy
Titan Scan Technologies Corporation Delaware
Titan Systems Solutions UK Ltd. United Kingdom
Titan Wireless Afripa Holding, Inc. Delaware
Titan Wireless, Inc. Delaware
Troll Technology Corporation California
Wescam Air Ops Inc. Delaware
Wescam Air Ops LLC Delaware
Wescam Asia PTE Ltd. Singapore
Wescam Europe Limited United Kingdom
Wescam Financial (U.S.A.) LLC Delaware
Wescam Holdings (US) Inc. Delaware
Wescam Inc. Canada
Wescam LLC Delaware
6
Wolf Coach, Inc. Massachusetts
