- ALSTOM
- BOMBARDIER
- BULLET TRAINS FOR AUSTRALIA
- CALIFORNIA HSR AUTHORITY
- CANADIAN RAILWAY OBSERVATIONS
- COLAS RAIL
- DB
- EUROSTAR
- GOEURO TRAINS
- ITALIAN HIGH SPEED RAIL
- JAPAN CENTRAL RAILWAY
- JET TRAIN
- NEVADA INTERCITY
- ITALO
- ONTARIO HIGH SPEED RAIL
- RAC
- RAIL ONE
- RENFE
- SIEMENS
- SNCF
- TAIWAN HSR
- TALGO
- TEXAS CENTRAL RAILWAY
- THALYS
- TRAINLINE
- TRANSPORT ACTION CANADA
- US HIGH SPEEED RAIL ASSOCIATION
- VICTORIA TRANSPORT POLICY INSTITUTE