AAR members include the major Class I railroads of the United States, Canada, Mexico and Amtrak. AAR affiliates and associates include non-Class I and passenger railroads, rail supply companies, rail car owners, engineering firms, and signal and communications firms. AAR unites all in working toward a single goal: to ensure railroads remain the safest, most efficient, cost-effective, and environmentally sound freight transportation mode in the world.
Full Members
- Alaska Railroad Corporation
- Railroads owned by Anacostia Rail Holdings Company
- BNSF Railway Company
- Canadian National Railway Company: US operations
- Canadian Pacific: US operations
- CSX Transportation, Inc.
- Florida East Coast Railway
- Railroads owned by Genesee & Wyoming Inc.
- The Indiana Rail Road Company
- Iowa Interstate Railroad, LLC
- Kansas City Southern
- Metra
- National Railroad Passenger Corporation (Amtrak)
- Norfolk Southern Corporation
- Railroads owned by R.J. Corman Railroad Group, LLC
- Union Pacific Railroad
- Vermont Rail System
- Railroads owned by Watco
- Wheeling & Lake Erie Railway
Special Members
- Canadian National Railway Company: Canadian operations
- Canadian Pacific: Canadian operations
- Ferrocarril del Istmo S.A. de C.V.
- Ferrocarril del Sureste
- Ferrocarril Mexicano
- Ferrocarril Y Terminal del Valle de Mexico, S.A. de C.V.
- Kansas City Southern de Mexico, S.A. de C.V.
Railroad Affiliates
- Caltrain – SamTrans
- Cleveland-Cliffs Inc. – Cleveland Works Railway Operations (CRWO)
- Colorado & Wyoming Railway Company
- Delta Southern Railroad
- Iron Horse Services
- Katahdin Railcar Services
- MBTA Commuter Rail (Keolis Commuter Services)
- Metrolink/SCRRA
- Metropolitan Transportation Authority
- Long Island Rail Road
- Metro-North Railroad
- New York City Transit
- New Orleans & Gulf Coast Railway
- NJ Transit
- North Country Transit District
- Regional Transportation District (RTD)
- Rio Metro Regional Transit District (RMRTD)
- Roberval & Saguenay Railway Co.
- San Joaquin Regional Rail Commission (SJRRC)
- Sidney and Lowe Railroad, LLC
- Virginia Railway Express
Associates
GOLD
- A. Stucki Company
- Alstom
- American Industrial Transport (AITX)
- Amsted Rail Company, Inc.
- Arcosa, Inc.
- Cathcart Rail, LLC
- Chicago Freight Car Leasing Co., A Sasser Family Holdings Co.
- CIT Rail
- Collins Aerospace
- Comet Industries
- Cordstrap USA Inc.
- CRRC Meishan Co., Ltd.
- Cummins
- EVRAZ North America
- Fras-le North America
- GATX Corporation
- The Greenbrier Companies
- Hanson Professional Services
- Harbor Rail Services Company
- HDR Engineering, Inc.
- Herzog Railroad Services, Inc.
- Hitachi Rail
- Jacobs Engineering Group Inc.
- KBX Rail
- Loram Maintenance of Way
- Loram Technologies, Inc
- Metalex®
- Meteorcomm LLC
- Midland Manufacturing Corp.
- New York Air Brake LLC
- Plasser American Corporation
- ProgressRail
- Railway Equipment Company (RECO)
- RailWorks Corporation
- Siemens Mobility, Inc.
- SIGNODE – Shippers Products / Down River / Allegheny Industrial Associates
- SMBC Rail Services LLC
- Standard Steel, LLC
- Stella-Jones Corporation
- STG Intermodal
- Strato, Inc.
- Sunrise Manufacturing, Inc.
- Trailers y Tanques de Aluminio, S.A. de C.V.
- Trinity Industries Leasing Company
- TTX Company
- Union Tank Car Company
- Wabtec Corporation
- Wells Fargo Rail
- Western-Cullen-Hayes, Inc.
- Wi-Tronix, LLC
SILVER
- Abtrex Industries Inc.
- Australian Rail Track Corporation
- Baowu Group Masteel Transit Materials Technology Co. Ltd.
- Cando Rail & Terminals
- Carolina Strapping and Buckles Company
- Cattron North America Inc.
- CRRC Qiqihar Rolling Stock Co., Ltd
- CRRC Yangtze Co., Ltd.
- Danobat Inc.
- Dassault Systèmes
- Duos Technologies, Inc.
- Frauscher Sensor Technology USA, Inc.
- Freedom Terminal Services
- FreightCar America Inc.
- Girard Equipment Inc.
- HARTING, Inc. of North America
- Harsco Rail LLC
- HNTB Corporation
- Holland, LP
- The InStar Group
- IRECO, LLC
- ITE Management
- JK-CO LLC
- Kasgro Rail Corporation
- Kelso Technologies Inc.
- Mitsui Rail Capital, LLC
- Motive Care & Supply, Inc.
- Nexxiot Inc
- NSH USA Corporation
- Nutrien, Inc.
- PNW Railcars, Inc.
- Procor Limited
- Railspire, LLC
- RazorSecure LLC
- R.L. Banks & Associates, Inc.
- Reidler Decal Corporation
- Renewable Energy Group
- RESCAR Companies
- Road & Rail Services, Inc.
- S&C Distribution Company
- Savage
- Senceive, Ltd.
- Signal Specialties, Inc.
- Steel Dynamics, Inc.
- TF Warren Group Inc. – Blastech
- The Timken Company
- Transco Railway Products, Inc.
- Trinity Chemical Industries, LLC
- Viasat, Inc.
- voestalpine Railway Systems Nortrak LLC
- ZTR