Exhibit 21.1

American Railcar Industries, Inc. wholly owns the following companies:

Subsidiary

1.	Castings LLC, a Delaware limited liability company
2.	Southwest Steel I, LLC, a Texas limited liability company
3.	Southwest Steel II, LLC, a Texas limited liability company
4.	Southwest Steel III, LLC, a Texas limited liability company
5.	ARI Fleet Services of Canada, Inc., a corporation registered in Ontario, Canada
6.	ARI Acquisition Sub, LLC, a Delaware limited liability company
7.	Amrail Industries, Inc., a Delaware corporation
8.	ARI Longtrain, Inc., a Delaware corporation
9.	ARI Component Venture, LLC, a Delaware limited liability company
10.	ARI Mauritius I, a Mauritius corporation
11.	ARI DMU, LLC, a Delaware limited liability company

Castings, LLC is a joint venture partner in Ohio Castings Company, LLC, a Delaware limited liability company.

ARI Component Venture, LLC, is a joint venture partner in Axis, LLC, a Delaware limited liability company, which owns Axis Operating Company LLC, a Delaware limited liability company.

ARI Mauritius I wholly owns ARI Mauritius II, a Mauritius corporation, which is a joint venture partner in Amtek Railcar Private Limited, an Indian private limited company.