Grand Trunk Corporation
The Grand Trunk Corporation is the subsidiary holding company for the Canadian National Railway's properties in the United States, and Canada. It is named for CN subsidiary railroad Grand Trunk Western Railroad. The Association of American Railroads has considered it to be a Class I railroad since fiscal year 2002.
GTC was incorporated under Delaware General Corporation Law on September 21, 1970 as Grand Trunk Industries, Inc., and renamed Grand Trunk Corporation on November 18, 1970. It acquired control of CN's U.S. properties; Grand Trunk Western, Central Vermont Railway and the Duluth, Winnipeg and Pacific Railway in December 1971, and has since acquired other companies, mostly through acquisitions of other holding companies: Illinois Central Railroad in 1999, Wisconsin Central Transportation Corporation in 2001, Great Lakes Transportation in 2004, and Elgin, Joliet and Eastern Railway in 2008.
| Company | Acquired from | Date | Notes |
| Algoma Central Railway | WC | - | |
| Bessemer and Lake Erie Railroad | GLT | - | |
| Cedar River Railroad | IC | - | |
| Chicago Central and Pacific Railroad | IC | - | |
| Duluth, Missabe and Iron Range Railway | GLT | - | |
| Duluth, Winnipeg and Pacific Railway | CN | - | |
| Grand Trunk Western Railroad | CN | - | |
| Great Lakes Fleet | GLT | - | |
| Illinois Central Railroad | IC | - | |
| Pittsburgh and Conneaut Dock Company | GLT | - | |
| Sault Ste. Marie Bridge Company | WC | - | |
| Waterloo Railway | IC | - | |
| Wisconsin Central Ltd. | WC | - | |
| Wisconsin Chicago Link Ltd. | WC | - |