Australian Rail Track Corporation
- http://www.artc.com.au/
- The Australian Rail Track Corporation Ltd currently has responsibility for the management of 4430 route kilometres of standard gauge interstate track, mainly in South Australia, Victoria and Western Australia.
Jernbaneverket
- http://www.jernbaneverket.no/
- The Norwegian National Rail Administration is responsible for the management of the national railway network, on behalf of the Ministry of Transport and Communication.
Rail Vikas Nigam Ltd
- http://www.rvnl.org/
- Indian Railway company, providing high speed Rail connectivity infrastructure among metro cities of Delhi-Mumbai-Chennai and Kolkata.