Exhibit 21.1

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

	Subsidiary
1.
2.	ARI Component Venture, LLC, a Delaware limited liability company
3.	ARI Fleet Services of Canada, Inc., a corporation registered in Ontario, Canada
4.	ARI Longtrain, Inc., a Delaware corporation
5.	Castings LLC, a Delaware limited liability company
6.	Longtrain Leasing I, LLC, a Delaware limited liability company
7.	Southwest Steel III, LLC, a Texas 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.