Transportation in the United States

Transportation in the United States.

Mainline

 * Defunct airlines of the United States

Class I

 * Alaska Railroad (ARR), freight and passenger
 * Amtrak (AMTK), passenger on freight lines
 * Burlington Northern & Gulf Railroad (BNG), freight
 * Chesapeake Southern Railway (CHS), freight
 * Conrail (CR), freight and passenger
 * Florida East Coast Railway (FEC), freight and passenger
 * Gulf & Atlantic Railway (GA), freight and passenger
 * Kansas City-Santa Fe Railroad (KCSF), freight
 * New York Western Railroad (NYW), freight
 * North Western Pacific Railroad (NWP), freight and passenger
 * Pennsylvania Seaboard Railroad (PS), freight
 * Pere Marquette Railway (PM), freight
 * Piedmont & Northern Railway (PN), freight and passenger
 * Texas Central Railway (TXC), passenger high-speed rail
 * Union Pacific Railroad (UP), freight

Companies based outside the United States

 * Canadian National Railway	(CN), Canada
 * Canadian Pacific Railway (CP), Canada
 * Ferrocarril Baja California (FBC), Mexico
 * Ferrocarriles Nacionales de México (Ferromex) (FNM, NdeM), freight
 * Société des Chemins de Fer du Québec (SCFQ), Canada
 * Spokane International Railroad (SI), British Columbia
 * VIA Rail (VIA), Canada
 * Washington & British Columbia Railway (WBC), British Columbia

Railway companies of the United States by state

 * Railway companies of Alabama
 * Railway companies of Alaska
 * Railway companies of Arizona
 * Railway companies of Arkansas
 * Railway companies of California
 * Railway companies of Colorado
 * Railway companies of Connecticut
 * Railway companies of Delaware
 * Railway companies of the District of Columbia
 * Railway companies of Florida
 * Railway companies of Georgia
 * Railway companies of Hawaii
 * Railway companies of Idaho
 * Railway companies of Illinois
 * Railway companies of Indiana
 * Railway companies of Iowa
 * Railway companies of Kansas
 * Railway companies of Kentucky
 * Railway companies of Louisiana
 * Railway companies of Maine
 * Railway companies of Maryland
 * Railway companies of Massachusetts
 * Railway companies of Michigan
 * Railway companies of Minnesota
 * Railway companies of Mississippi
 * Railway companies of Missouri
 * Railway companies of Montana
 * Railway companies of Nebraska
 * Railway companies of Nevada
 * Railway companies of New Hampshire
 * Railway companies of New Jersey
 * Railway companies of New Mexico
 * Railway companies of New York
 * Railway companies of North Carolina
 * Railway companies of North Dakota
 * Railway companies of Ohio
 * Railway companies of Oklahoma
 * Railway companies of Oregon
 * Railway companies of Pennsylvania
 * Railway companies of Rhode Island
 * Railway companies of South Carolina
 * Railway companies of South Dakota
 * Railway companies of Tennessee
 * Railway companies of Texas
 * Railway companies of Utah
 * Railway companies of Vermont
 * Railway companies of Virginia
 * Railway companies of Washington
 * Railway companies of West Virginia
 * Railway companies of Wisconsin
 * Railway companies of Wyoming