•  North American Class 1 Railroads
•  BNSF Railway
•  Canadian National Railway
•  Canadian Pacific Railway
•  CSX Transportation Railroad
•  Norfolk Southern Railway
•  Union Pacific Railroad

•  Regional and Short Line Railroads
•  Genesee & Wyoming
•  Iowa Interstate Railway
•  New Brunswick Southern Railway
•  Paducah & Louisville Railway
•  Watco Companies

•  Other Users
•  Dofasco
•  Iron Ore of Canada
•  Nucor Steel
•  US Steel

•  Africa
•  Botswana
•  Mittal Steel
•  Richards Bay Coal Terminal
•  Transnet Rail Engineering

•  Australia/ New Zealand
•  ARG
•  KiwiRail
•  Pacific National
•  Queensland Rail

•  Chile
•  Ferronor

•  Pakistan
•  Pakistani Railways

* These company names and marks are the intellectual property of their owners. ZTR makes no claims to the use of these marks in relation to our or any products.