Landstar System (LSTR) 10-K 2010 FY Annual report

Exhibit 21.1

LIST OF SUBSIDIARY CORPORATIONS OF LANDSTAR SYSTEM, INC.

	Jurisdiction of	% of Voting
Name	Incorporation	Securities Owned
Subsidiary of Landstar System, Inc.:
Landstar System Holdings, Inc.	Delaware		100
Subsidiaries of Landstar System Holdings, Inc.:
Landstar Inway, Inc.	Delaware		100
Landstar Global Logistics, Inc.	Delaware		100
Landstar Ligon, Inc.	Delaware		100
Landstar Ranger, Inc.	Delaware		100
Risk Management Claim Services, Inc.	Kentucky		100
Also d/b/a RMCS, Inc. in Alabama and California
Landstar Transportation Logistics, Inc.	Delaware		100
Also d/b/a Landstar Carrier Services, Inc.
Landstar Contractor Financing, Inc.	Delaware		100
Signature Insurance Company	Cayman Islands, BWI		100
Landstar Canada Holdings, Inc.	Delaware		100
Signature Technology Services, Inc.	Delaware		100
Landstar Supply Chain Solutions, Inc.	Delaware		100
Subsidiaries of Landstar Supply Chain Solutions, Inc.
National Logistics Management Co.	Michigan
A3I Acquisition LLC	Delaware		75
Subsidiary of A3I Acquisition LLC
A3 Integration, LLC	Delaware		100
Subsidiary of Landstar Canada Holdings, Inc.
Landstar Canada, Inc.	Ontario, Canada		100
Also d/b/a Enterprise Landstar Canada in Quebec
Also d/b/a Landstar Canada Forwarding
Subsidiary of Landstar Global Logistics, Inc.
Landstar Express America, Inc.	North Carolina		100
Subsidiary of Landstar Ranger, Inc.
Landstar Gemini, Inc.	Delaware		100
Also d/b/a Landstar Less Than Truck Load
Also d/b/a Landstar LTL