| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| TANKTAINER THURROCLEAN (MIDDLESBROUGH) LIMITED | 03304985 | 02/06/2016 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ATLANTIC TANK CLEAN BARRY LIMITED | 04082023 | 19/10/2021 | 06/12/2023 | Silver |
| BOASSO UK LIMITED | 10090777 | 19/04/2016 | 06/12/2023 | Bronze |
| D A WATSON COMMERCIALS LIMITED | 08231769 | 07/03/2017 | 06/12/2023 | Dissolved |
| DEPOT CONNECT INTERNATIONAL LIMITED | 10090751 | 19/04/2016 | 06/12/2023 | Amber |
| ISOTANK (2006) LIMITED | 05677332 | 02/06/2016 | 06/12/2023 | Silver |
| ISOTANK (2010) LIMITED | 07199113 | 02/06/2016 | 06/12/2023 | One Red Flag |
| ISOTANK DEPOT SERVICES LIMITED | 04786989 | 02/06/2016 | 06/12/2023 | Silver |
| ISOTANK SERVICES LIMITED | 01448387 | 02/06/2016 | 06/12/2023 | Gold |
| ISOTANK TRANSPORT SERVICES LIMITED | 04787001 | 02/06/2016 | 06/12/2023 | Silver |
| J WATSON HAULAGE LIMITED | 06801520 | 07/04/2017 | 06/12/2023 | Dissolved |
| PM REES & SONS 2000 LIMITED | 04077804 | 19/10/2021 | 06/12/2023 | Silver |
| TACHOGRAPH SERVICES LIMITED | 07200174 | 19/10/2021 | 06/12/2023 | Dissolved |
| TANKTAINER THURROCLEAN (MIDDLESBROUGH) LIMITED | 03304985 | 02/06/2016 | 15/12/2023 | One Red Flag |