1994 - 1997
Prior to privatisation, Network SouthEast was divided into eleven separate companies. One of which was named Thames Trains. Go-ahead was awarded the Thames franchise in 1996.
1997 - 2004
First Great Western Link
2004 - 2006
In 2004, the franchise was transferred to FirstGroup in preperation for the merger of the franchise with the InterCity Great Western franchise which eventually happened in 2006 when the merged franchises became the Greater Western franchise.
| Current franchises|
Chiltern | East Anglia (Stansted Express) | East Midlands | Essex Thameside | Greater Western | Integrated Kent | InterCity East Coast | InterCity West Coast | Merseyrail | New Cross Country | Northern | ScotRail | South Western (Island Line) | Thameslink, Southern and Great Northern | TransPennine | Wales and Borders | West Midlands