| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ASPENKIRK LIMITED | 03685350 | 03/07/2000 | Dissolved |
| CRUCIBLE VENTURES LIMITED | 10438485 | 20/10/2016 | Bronze |
| EXCELSA VENTURES LIMITED | 10193459 | 22/11/2018 | Dissolved |
| MARTIN AND ROBSON LIMITED | 10227066 | 22/11/2018 | Dissolved |
| MOF TECHNOLOGIES LIMITED | NI612857 | 07/05/2024 | Amber |
| SHAND ENGINEERING LIMITED | 01083861 | 23/11/2018 | Silver |
| STURROCK AND ROBSON (UK) LIMITED | 03658217 | 28/10/1998 | Silver |
| STURROCK AND ROBSON NEW ENERGY LIMITED | 07268341 | 11/06/2010 | Bronze |
| STURROCK AND ROBSON SERVICES LTD | 07762372 | 26/09/2011 | Amber |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| FLUID TRANSFER INTERNATIONAL LIMITED | 03658293 | 28/10/1998 | 05/11/2013 | Bronze |
| REACH ENGINEERING & DIVING SERVICES LIMITED | 03919285 | 10/08/2010 | 03/10/2012 | Silver |
| SERIA LIMITED | 04996556 | 23/12/2003 | 30/06/2009 | Silver |