Exhibit 21

Exhibit 21

L3HARRIS TECHNOLOGIES INC.

SUBSIDIARIES AS OF FEBRUARY 25, 2022

(100% direct or indirect ownership by L3Harris Technologies, Inc., unless otherwise noted)

Name of Subsidiary						State or Other Jurisdiction of Incorporation
1231670 Ontario Inc.						Canada
1297741B.C. Ltd.						Canada
Aerosim Bangkok Company Limited						Thailand
Aerosim Thai Company Limited						Thailand
Airline Placement Limited						United Kingdom
Airline Recruitment Limited						United Kingdom
Asia Flight Data Services Pte. Ltd.						Singapore
Asian Aviation Training Centre Ltd.						Thailand
Aviation Communication & Surveillance Systems, LLC*						Delaware
Azimuth Security Trust						Australia
Beijing MAPPS-SERI Technology Company Ltd.*						China
Calzoni S.r.l.						Italy
Cancer Treatment Services International, Inc.*						Delaware
CTC Aviation Group Limited						United Kingdom
CTC Aviation Holdings Limited						United Kingdom
CTC Aviation International Limited						United Kingdom
CTC Aviation Services Limited						United Kingdom
CTC Aviation Training (UK) Limited.						United Kingdom
DMRAC-Aviation Corporation - SGPS, Unipessoal LDA						Portugal
EAA – Escola de Aviação Aerocondor, S.A.						Portugal
Eagle Technology, LLC						Delaware
FAST Holdings Limited*						United Kingdom
FAST Training Services Limited						United Kingdom
G Air Advanced Training, Lda						Portugal
G Air II Maintenance, Lda						Portugal
G4U – Gestão de Activos Aeronáuticos, Sociedade, Lda						Portugal
Harris Asia Pacific Sdn. Bhd.						Malaysia
Harris Atlas Systems LLC*						UAE
Harris Canada Systems, Inc.						Canada
Harris Cayman Ltd.						Cayman Islands
Harris Communications (Spain), S. L.						Spain
Harris Communications FZCO						UAE
Harris Communications GmbH						Germany
Harris Communications Limited						Hong Kong
Harris Communications Malaysia Sdn. Bhd.						Malaysia
Harris Communications MH Spain, S. L.						Spain
Harris Communications Pakistan (Private) Limited						Pakistan
Harris Communications Systems India Private Limited						India

1

Name of Subsidiary						State or Other Jurisdiction of Incorporation
Harris Comunicações e Participações do Brasil Ltda.						Brazil
Harris Denmark ApS						Denmark
Harris Denmark Holding ApS						Denmark
Harris Geospatial Solutions B.V.						Netherlands
Harris Geospatial Solutions France Sarl						France
Harris Geospatial Solutions GmbH						Germany
Harris Geospatial Solutions Italia SRL						Italy
Harris Geospatial Solutions KK						Japan
Harris Global Communications, Inc.						New York
Harris International Chile Limitada						Chile
Harris International Saudi Communications						Saudi Arabia
Harris International Venezuela, C.A.						Venezuela
Harris Luxembourg SARL						Luxembourg
Harris NV						Belgium
Harris Pension Management Limited						United Kingdom
Harris Solid-State (Malaysia) Sdn. Bhd.						Malaysia
L-3 Communications Advanced Aviation, Inc.						Montana
L-3 Communications Advanced Aviation, LLC						Montana
L-3 Communications Australia Pty Ltd						Australia
L-3 Communications Holding GmbH						Germany
L-3 Communications India Private Limited						India
L3 CTS Airline Academy (NZ) Limited						New Zealand
L3 CTS Airline and Academy Training Limited						United Kingdom
L3 Kenya LTD						Kenya
L3 MAPPS INC.						Canada
L3 MAPPS Sdn. Bhd.						Malaysia
L-3 Saudi Arabia LLC						Saudi Arabia
L-3 Societá Srl.						Italy
L3 Technologies Canada Group Inc.						Canada
L3 Technologies Canada Inc.						Canada
L3 Technologies Investments Limited						Cyprus
L3 Technologies MAS Inc.						Canada
L3 Technologies, Inc.						Delaware
L3Harris Aerosim Academy, Inc.						Florida
L3Harris Afghanistan LLC						Delaware
L3Harris Applied Defense Solutions, Inc.						Delaware
L3Harris Applied Technologies, Inc.						Delaware
L3Harris Arctic Services, Inc.						Delaware
L3Harris Australia Group Pty. Ltd.						Australia
L3Harris Australia Holdings Pty Ltd						Australia
L3Harris Autonomous Surface Vehicles Limited						United Kingdom
L3Harris Autonomous Surface Vehicles, LLC						Louisiana
L3Harris Aviation Products, Inc.						Delaware

2

Name of Subsidiary						State or Other Jurisdiction of Incorporation
L3Harris Azimuth Security Pty Ltd						Australia
L3Harris Centaur LLC						Delaware
L3Harris Cincinnati Electronics Corporation						Ohio
L3Hzrris Commercial Training Solutions Limited						United Kingdom
L3Harris Communications Australia Pty Ltd						Australia
L3Harris Communications Systems Limited						United Kingdom
L3Harris Defence Investments Limited						United Kingdom
L3Harris Domestic Holdings, Inc.						Delaware
L3Harris EDO UK Limited						United Kingdom
L3Harris EDO Western Corporation						Utah
L3Harris Electrodynamics, Inc.						Arizona
L3Harris Exelis Australia Pty Ltd						Australia
L3Harris Felec Services, Inc.						Delaware
L3Harris Flight Data Services Limited						United Kingdom
L3Harris Flight Data Services Inc.						Arizona
L3Harris Flight Training Acquisitions LLC						Delaware
L3Harris ForceX, Inc						Tennessee
L3Harris Foreign Holdings, Inc.						Delaware
L3Harris Fuzing and Ordnance Systems, Inc.						Delaware
L3Harris Geospatial Solutions, Inc.						Colorado
L3Harris Geospatial Solutions UK Limited						United Kingdom
L3Harris Global Holding UK Ltd.						United Kingdom
L3Harris Holdco LLC.						Delaware
L3Harris Holdings, Inc.						Delaware
L3Harris Integrated Mission Systems Australia Pty Ltd						Australia
L3Harris International Holdings, LLC						Delaware
L3Harris International UK Ltd						United Kingdom
L3Harris International, Inc.						Delaware
L3Harris Interstate Electronics Corporation						California
L3Harris Investments, LLC						Delaware
L3Harris Investments UK Holdings Ltd						United Kingdom
L3Harris Kigre, Inc.						Ohio
L3Harris Latitude, LLC						Arizona
L3Harris Linchpin Labs Inc.						Delaware
L3Harris Luxembourg Sarl LLC						Delaware
L3Harris Manatee Investment, LLC						Delaware
L3Harris MAPPS Limited						United Kingdom
L3Harris Maritime Power & Energy Solutions, Inc.						Delaware
L3Harris Maritime Services, Inc.						Delaware
L3Harris Melbourne Leasing, LLC						Florida
L3Harris Micreo Pty Limited						Australia
L3Harris Mission Critical Services, LLC						Delaware
L3Harris Mustang Technology Group, L.P.						Texas

3

Name of Subsidiary						State or Other Jurisdiction of Incorporation
L3Harris NexGen Communications LLC						Virginia
L3Harris Open Water Power, Inc.						Delaware
L3Harris Release & Integrated Solutions Ltd						United Kingdom
L3Harris Technologies AIS GP Corporation						Delaware
L3Harris Technologies ASA Limited						United Kingdom
L3Harris Technologies Australia Group Pty Ltd						Australia
L3Harris Technologies Australia Pty Ltd.						Australia
L3Harris Technologies BTC Holding, LLC						Delaware
L3Harris Technologies CMAS Holdings, LLC						Delaware
L3Harris Technologies CTS Holdings Limited						United Kingdom
L3Harris Technologies Flight Capital LLC						Delaware
L3Harris Technologies Holding, LLC						Delaware
L3Harris Technologies Integrated Systems L.P.						Delaware
L3Harris Technologies Investments Inc.						Delaware
L3Harris Technologies Link Simulation and Training UK (Overseas) Limited						United Kingdom
L3Harris Technologies UK Holding Ltd						United Kingdom
L3Harris Technologies UK Limited						United Kingdom
L3Harris Technologies UK Topco Limited						United Kingdom
L3Harris Technology & Services UK Ltd						United Kingdom
L3Harris Technology (Bejing) Co. Ltd						China
L3Harris Trenchant Ltd						United Kingdom
L3Harris Trenchant Pty Ltd						Australia
L3Harris TRL Electronics Limited						United Kingdom
L3Harris TRL Technology Limited						United Kingdom
L3Harris Unlimited						United Kingdom
L3Harris Unmanned Systems, Inc.						Texas
Linchpin Labs Inc.						Canada
Linchpin Labs Limited						New Zealand
L-Tres Comunicaciones Costa Rica, S.A.						Costa Rica
S.C. Harris Assured Communications SRL						Romania
SAMI L3Harris Technologies LLC						Saudi Arabia
SARL Assured Communications						Algeria
Sovcan Star Satellite Communications Inc.						Canada
Sunshine General Services, LLC						Iraq
Wescam Inc.						Canada
Wescam USA, Inc.						Florida

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* Subsidiary of L3Harris Technologies, Inc. less than 100% directly or indirectly owned by L3Harris Technologies, Inc.

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