Boardroom Alpha
10-K primary document
AIR · Annual Report (Form 10-K) · Filed July 22, 2026

Aar Corp10-K exhibit

air-20260531xex21d1.htm

Exhibit 21.1

AAR CORP.

Subsidiaries

Name(1)

Place of Incorporation

Doing Business As

AAR CORP.

Delaware

AAR Aviation Corp.

AAR Aircraft & Engine Sales & Leasing, Inc.

Illinois

AAR Aircraft Advisory Services

AAR Asset Management, LLC

Delaware

AAR International Financial Services, L.L.C.

Illinois

AAR Aircraft Services, Inc.

Illinois

AAR Aircraft Services — Indianapolis, AAR Aircraft Services — Oklahoma, AAR Aircraft Services —Duluth, AAR Aircraft Services — Rockford, AAR Aircraft Services – Miami, and AAR Engineering Services
AAR Aircraft Services – Special Programs

Aviation Maintenance Staffing, Inc.

Delaware

Aeronautica Corporation

Illinois

Aeronautica

AAR Americas, LLC (formerly HAECO Americas, LLC)

Delaware

AAR Aircraft Services, LLC (formerly HAECO Airframe Services, LLC)

Delaware

AAR Aircraft Services – Greensboro, AAR Aircraft Services – Lake City, and Lake City AAR Aircraft Services.

Aircraft Reconfig Technologies LLC

Delaware

AAR Airlift Group, Inc.

Florida

AAR Airlift, AAR Airlift Group, AAR Aircraft Services —Melbourne and AAR Rotorcraft Services.

AAR Airlift Pakistan (Private) Limited

Pakistan

AAR Airlift S.A.S.

Colombia

Wide Open Sky General Trading & Services, LLC

Iraq

AAR Government Services, Inc.

Illinois

AAR Airlift Group Afghanistan Inc. Logistic Services

Afghanistan

AAR Defense Systems & Logistics

AAR Airlift Cyprus Limited

Cyprus

AAR Airlift Panama, Inc.

Panama

AAR Airlift Group Peru S.A.C.

Peru

AAR Airlift Group Peru S.A.C.

Peru

AAR Defence Services Canada ULC

British Columbia

AAR International, Inc.

Illinois

AAR Aircraft Component Services International, AAR Engineering Services — Asia, Allen Asset Management, AAR International, Inc. – Dubai, AAR International, Inc. – Abu Dhabi

AAR (25262) LLC

Delaware

AAR Airlift Pakistan (Private) Limited

Pakistan

AAR Australia, L.L.C.

Illinois

AAR Canada Holdings ULC

British Columbia

AAR Aircraft Services – Windsor ULC

British Columbia

AAR MRO Services-Canada, Windsor (ON)

AAR Aircraft Services – Trois Rivieres ULC

British Columbia

AAR MRO Services-Canada, Trois Rivieres (QC)


Name(1)

Place of Incorporation

Doing Business As

AAR Global Services – Australia Pty Ltd

Australia

AAR Defense Systems and Logistics

AAR Component Services (Thailand) Ltd

Thailand

AAR Component Services (Thailand) Ltd

Thailand

AAR International Financial Services, L.L.C.

Illinois

AARIFS (561) LLC

Illinois

AARIFS (662) LLC

Delaware

AARIFS (25092) LLC

Delaware

AARIFS (25093) LLC

Delaware

Osprey 737-300 Leasing LLC

Delaware

TN-AR Holdings LLC

Delaware

AAR Ireland Limited

Ireland

AAR Aircraft Turbine Center

AAR Japan, Inc.

Illinois

Airinmar Limited

United Kingdom

Technisch Handelskantoor Lloyd B.V.

Netherlands

Allen Airmotive Properties B.V.

Netherlands

AAR Manufacturing, Inc.

Illinois

AAR Mobility Systems, and AAR Manufacturing

Brown International Corporation

Alabama

AAR Integrated Technologies

AAR Supply Chain, Inc.

Illinois

AAR Aircraft Turbine Center, AAR Defense Systems & Logistics, Allen Asset Management, AAR Distribution, Airinmar, and AAR OEM Supply,

AAR Allen Services, Inc.

Illinois

AAR Aircraft Component Services, AAR Hermetic, AAR Petrotech, AAR Allen Services, Inc. - AAR Component Services – Wellington, Inc., and AAR Component Services – San Antonio

AAR Component Services – Hot Springs, LLC

Arkansas

AAR Component Services – Grand Prairie, Inc.

Delaware

American Distributors Holding Co., LLC

Delaware

Beck Illuminations LLC

New Jersey

AAR OEM Supply – Oklahoma

ADI American Distributors Limited

United Kingdom

AAR OEM Supply – United Kingdom

ADI American Distributors, LLC

New Jersey

AAR OEM Supply – New Jersey

Gemini Components, LLC

Delaware

AAR OEM Supply – New Jersey

NewVac, LLC

Delaware

AAR OEM Supply – NewVac

Microwave Components, LLC

Delaware

AAR OEM Supply – Microwave

ADI Electronics Manufacturing Technologies Pvt Ltd

India

AAR OEM Supply – EMT India

EP Aviation, LLC

Delaware

Aerostrat Corp.

Delaware

Airvoyant, Inc.

Delaware

Onset Aviation Parts, Inc.

Delaware

Trax USA Corp.

Florida

AAR CORP. Foundation

Illinois

2


(1)

An italicized name means the entity is a subsidiary of the entity appearing in bold above it. An indentation means the entity is a subsidiary of the entity above.

3


Disclaimer

The opinions and information contained herein have been obtained or derived from sources believed to be reliable, but Boardroom Alpha cannot guarantee its accuracy and completeness, and that of the opinions based thereon.

This report contains opinions and is provided for informational purposes only – it does not constitute investment, legal or tax advice. You should not rely solely upon the research herein for purposes of transacting securities or other investments, and you are encouraged to conduct your own research and due diligence, and to seek the advice of a qualified securities professional before you make any investment.

None of the information contained in this report constitutes, or is intended to constitute a recommendation by Boardroom Alpha of any particular security or trading strategy or a determination by Boardroom Alpha that any security or trading strategy is suitable for any specific person. To the extent any of the information contained herein may be deemed to be investment advice, such information is impersonal and not tailored to the investment needs of any specific person.

No representation or warranty, expressed or implied, is made on behalf of Boardroom Alpha as to the accuracy or completeness of the information contained herein. Boardroom Alpha does not accept any liability for any direct, indirect or consequential loss or damage suffered by any person as a result of relying on all or any part of this research and any liability is expressly disclaimed.

Full disclaimer