The Alaska Railroad supports a wide variety of industries in Alaska and the lower 48 states as well as international interests. The mainline transports various commodities such as oil, gravel, coal and tractor-trailer containers. The Port of Whittier serves as a connection with the rest of the railroads in the lower 48 states via sea-going railroad barges from Seattle. The pages below are a few examples of the customers (both past and present) the railroad services.
 
 

Alaska Basic Industries	Continuous Welded Rail	Seward Sawmill
Alaska Mill and Feed	Curry Rock Quarry	Ship Creek Industrial Complex
Ammonium Nitrate Storage	Eska Coal Mine	Stub Track
Anchorage Freight House	Evan Jones Coal Mine	Suntrana
Anchorage Ocean Dock	Flint Hills Resources	Suntrana Branch Unloading Facility
Anchorage Sand and Gravel	Granite Construction	Totem Ocean Trailer Express
APU Spur	Insulfoam	UAF Coal Fired Power Plant
Canadian National's AquaTrain	Lynden	Unique Machine, LLC
Central Environmental, Inc.	Quality Asphalt Products	UNIVAR USA
Central Recycling Service	San Wan Fish Cannery	Usibelli Coal Mine, Inc.
Central Paving Products Pit	Sea-Land	Valley Block and Concrete
Clean Harbors	Seattle Docks	Weaver Brothers
Colombia Lumber Company	Seward Coal Terminal	Whittier Barge Docks
Concrete Ties