| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Doncaster Transport Limited | 01964456 | 13/07/1998 | Dissolved |
| FIRST MAINLINE LIMITED | 01964469 | 13/07/1998 | Dissolved |
| First Doncaster Ltd | 01964455 | 13/07/1998 | Dissolved |
| First Rotherham Ltd | 01964490 | 13/07/1998 | Dissolved |
| First Sheffield Transport Ltd | 01964446 | 13/07/1998 | Dissolved |
| Mainline International Ltd | 01964492 | 13/07/1998 | Dissolved |
| NORTH HALIFAX PARTNERSHIP LIMITED | 04365411 | 25/11/2024 | Gold |
| Newhall Ventures Ltd | 03074447 | 13/07/1998 | Dissolved |
| Rotherham Transport Ltd | 01964466 | 13/07/1998 | Dissolved |
| S.U.T. Ltd | 01964548 | 13/07/1998 | Dissolved |
| S.Y.T. Limited | 01950319 | 13/07/1998 | Dissolved |
| Sheffield Through Ticketing Co Ltd | 03117775 | 13/07/1998 | Dissolved |
| Sheffield Transport Ltd | 02538861 | 13/07/1998 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BOLTON COACHWAYS & TRAVEL LIMITED | 01203038 | 21/12/2004 | 05/01/2010 | Dissolved |
| BUTLER WOODHOUSE LIMITED | 02010514 | 21/12/2004 | 01/04/2007 | Not Trading |
| COMMUNITY PARTNERS LIMITED | 02751636 | 14/08/2000 | 30/09/2002 | Bronze |
| DON VALLEY BUSES LIMITED | 02576898 | 13/07/1998 | 12/07/2005 | Dissolved |
| FIRST ASHTON LIMITED | 00087044 | 21/12/2004 | 05/01/2010 | Dissolved |
| FIRST MANCHESTER LIMITED | 02818607 | 21/12/2004 | 05/01/2010 | Amber |
| FIRST MANCHESTER LIMITED | 02818607 | 21/12/2004 | 05/01/2010 | Amber |
| FIRST NORTH WEST (SCHOOLS) LIMITED | 03010321 | 21/12/2004 | 05/01/2010 | Dissolved |
| FIRST NORTH WEST LIMITED | 02862042 | 09/08/2005 | 05/01/2010 | Amber |
| FIRST NORTH WEST LIMITED | 02862042 | 21/12/2004 | 05/01/2010 | Amber |
| FIRST PIONEER BUS LIMITED | 01853840 | 21/12/2004 | 05/01/2010 | Strike Off |
| FIRST SOUTH YORKSHIRE LIMITED | 02332529 | 13/07/1998 | 12/07/2005 | Bronze |
| FLEETRISK MANAGEMENT LIMITED | 02762721 | 13/07/1998 | 12/07/2005 | Dissolved |
| GMBN EMPLOYEES SHARE SCHEME TRUSTEE LIMITED | 02911198 | 21/12/2004 | 05/01/2010 | Dissolved |
| GREATER MANCHESTER TRAVELCARDS LIMITED | 01848309 | 11/04/2005 | 28/09/2009 | Bronze |
| MAINLINE EMPLOYEES' SHAREHOLDING TRUSTEES LIMITED | 02810295 | 18/06/2009 | 01/08/2015 | Dissolved |
| MAINLINE ESOP TRUSTEES (NO 1) LIMITED | 02810306 | 13/07/1998 | 01/08/2015 | Dissolved |
| MAINLINE ESOP TRUSTEES (NO 2) LIMITED | 02810303 | 07/11/2011 | 01/08/2015 | Dissolved |
| MAINLINE PARTNERSHIP LIMITED | 02819207 | 10/11/1998 | 12/07/2005 | Amber |
| MAINLINE PARTNERSHIP PENSION TRUSTEES LIMITED | 02904427 | 09/06/1999 | 09/03/2007 | Dissolved |
| PTI WEBSITE LIMITED | 03587947 | 05/03/2002 | 08/09/2010 | Dissolved |
| SHEAFLINE (S.U.T.) LIMITED | 02372057 | 13/07/1998 | 12/07/2005 | Strike Off |
| SHEFFIELD & DISTRICT TRACTION COMPANY LIMITED | 02293962 | 13/07/1998 | 12/07/2005 | Strike Off |
| SHEFFIELD UNITED TRANSPORT LIMITED | 02075509 | 13/07/1998 | 12/07/2005 | Strike Off |
| WEST YORKSHIRE TICKETING COMPANY LIMITED | 05238694 | 06/08/2010 | 15/04/2014 | One Red Flag |