| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ITK SEALING SOLUTIONS LIMITED | 08877945 | 05/02/2014 | Dissolved |
| NAMECO (NO. 980) LIMITED | 07013175 | 11/11/2016 | Bronze |
| NAMECO (NO.929) LIMITED | 06292120 | 28/02/2014 | Bronze |
| SEALMAN LIMITED | 10379556 | 16/09/2016 | Not Trading |
| SHEMWELL (PANDER) LIMITED | 10657611 | 12/12/2017 | Dissolved |
| SW CENTRE LIMITED | 09046934 | 12/12/2017 | Dissolved |
| SW CENTRE PROPERTY LIMITED | 04184824 | 12/09/2001 | Bronze |
| TAPMEDIC SALES LIMITED | 11192264 | 06/09/2019 | Dissolved |
| VULCAN ENGINEERING LIMITED | 02422728 | 06/09/2001 | Bronze |
| VULCAN ENGINEERING LIMITED | 02422728 | 14/09/1991 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DARLINGTON ARENA LIMITED | 07663383 | 31/05/2021 | 29/05/2024 | One Red Flag |
| GEKA UK LIMITED | 08246707 | 10/10/2012 | 08/06/2020 | Silver |
| TAPMEDIC IP LIMITED | 10613043 | 03/02/2018 | 30/06/2020 | Silver |
| TCCI LIMITED | 04807744 | 28/01/2010 | 31/12/2014 | Silver |
| VULCAN ENGINEERING LIMITED | 02422728 | 14/09/1991 | 24/09/1999 | Bronze |