| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| EMB POWER LIMITED | 10640279 | 01/04/2021 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| E-SQUARED SYSTEMS UK LTD | 06645163 | 28/09/2011 | 27/01/2014 | Gold |
| ID CONSULTANTS LIMITED | 07278812 | 30/07/2010 | 29/10/2010 | Dissolved |
| ID GEOENVIRONMENTAL LIMITED | 07085581 | 22/06/2010 | 29/10/2010 | Silver |
| MEADOWBANK MANAGEMENT CONSULTANTS LIMITED | 05516224 | 24/07/2005 | 31/03/2007 | Dissolved |
| MMI CIVILS LIMITED | 06911367 | 22/06/2010 | 29/10/2010 | Dissolved |
| MMI STRUCTURES LIMITED | 06911273 | 24/06/2010 | 29/10/2010 | Dissolved |
| T. M. DUCHE & SONS LIMITED | 02592714 | 01/05/2023 | 17/09/2024 | One Red Flag |