| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| EUROPEAN STUDY TOURS (EST) LIMITED | 05530170 | 01/10/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 3D EDUCATION AND ADVENTURE LIMITED | 04089741 | 19/07/2004 | 29/09/2010 | Dissolved |
| BLACK ROCK PUBLISHING LIMITED | 08499946 | 10/08/2017 | 18/11/2022 | Gold |
| EDGE ADVENTURES LIMITED | 03496821 | 20/04/2010 | 20/09/2012 | Dissolved |
| EST TRANSPORT PURCHASING LIMITED | 03303030 | 01/10/2009 | 20/09/2012 | Silver |
| ETS FINANCIAL SERVICES LIMITED | 03130421 | 30/09/2007 | 29/09/2010 | Dissolved |
| EUROPEAN STUDY TOURS LIMITED | 01839286 | 01/10/2009 | 20/09/2012 | Bronze |
| EXPLORE AVIATION LIMITED | 03142462 | 20/04/2010 | 20/09/2012 | Silver |
| EXPLORE WORLDWIDE LIMITED | 01577018 | 20/04/2010 | 20/09/2012 | Amber |
| FREEDOM OF FRANCE LIMITED | 02330395 | 19/08/2005 | 20/09/2012 | Not Trading |
| GREENBANK HOLIDAYS LIMITED | 01160442 | 20/04/2010 | 20/09/2012 | Bronze |
| GREENBANK PACKAGES LIMITED | 02174543 | 20/04/2010 | 20/09/2012 | Dissolved |
| GREENBANK SERVICES LIMITED | 01529855 | 20/04/2010 | 20/09/2012 | Silver |
| HB EDUCATION LIMITED | 06247659 | 09/03/2009 | 20/09/2012 | Bronze |
| HERTFORD TRAVEL GROUP LIMITED | 04564267 | 01/10/2009 | 29/09/2010 | Dissolved |
| HOLIDAYBREAK LIMITED | 02305562 | 11/06/2007 | 20/09/2012 | Amber |
| JD SPORTS FASHION PLC | 01888425 | 01/10/2012 | 09/07/2021 | Silver |
| NST FOREIGN HOLDINGS LIMITED | 00919755 | 30/09/2007 | 23/03/2011 | Dissolved |
| NST HOLDINGS LIMITED | 06322303 | 30/09/2007 | 29/09/2010 | Not Trading |
| NST TRANSPORT SERVICES LIMITED | 03130532 | 30/09/2007 | 20/09/2012 | Bronze |
| NST TRAVEL GROUP HOLDINGS LIMITED | 05244593 | 14/10/2010 | 14/10/2010 | Dissolved |
| NST TRAVEL GROUP LIMITED | 02665024 | 30/09/2007 | 20/09/2012 | Bronze |
| P.G.L.VOYAGES LIMITED | 00649051 | 24/05/2004 | 20/09/2012 | Amber |
| PGL ADVENTURE LTD. | 01420399 | 19/08/2005 | 20/09/2012 | Bronze |
| PGL AIR TRAVEL LIMITED | 02583431 | 01/11/2004 | 20/09/2012 | Bronze |
| PGL GROUP LIMITED | 05346933 | 13/07/2005 | 20/09/2012 | Silver |
| PGL TRAVEL LIMITED | 01191534 | 24/05/2004 | 20/09/2012 | Amber |
| SELECT SITES LIMITED | 00546118 | 20/04/2010 | 20/09/2012 | Bronze |
| SENTRIC MUSIC GROUP LIMITED | 12566815 | 27/05/2020 | 18/11/2022 | Silver |
| SENTRIC MUSIC LIMITED | 05721428 | 01/12/2013 | 18/11/2022 | Silver |
| SUPERBREAK MINI HOLIDAYS GROUP LIMITED | 02501443 | 20/04/2010 | 20/09/2012 | Dissolved |
| SUPERBREAK MINI-HOLIDAYS LIMITED | 01674987 | 20/04/2010 | 20/09/2012 | Dissolved |
| TAYLOR CAMPING LIMITED | 01790911 | 20/04/2010 | 20/09/2012 | Dissolved |
| THE GAME GROUP PLC | 00875835 | 15/07/2011 | 24/03/2012 | Dissolved |
| TOUR OPERATOR 2018 LIMITED | 02211222 | 20/04/2010 | 20/09/2012 | Dissolved |
| TUTORS DIRECT LIMITED | 07464205 | 20/04/2012 | 18/07/2012 | Dissolved |