Exhibit 22.1

List of Guarantor Subsidiaries

As of March 31, 2022, the following subsidiaries of Trinity Industries, Inc. (the “Parent”) are guarantors of the Parent’s 4.55% senior notes due 2024:

Trinity Industries Leasing Company

Trinity North American Freight Car, Inc.

Trinity Rail Group, LLC

Trinity Tank Car, Inc.

TrinityRail Maintenance Services, Inc.