| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ACYTAR LIMITED | 07663669 | 09/06/2011 | Silver |
| Consignia Plastics Ltd | 06131320 | 28/02/2007 | Dissolved |
| FUNDAMENTAL ENGINEERING LIMITED | 09501876 | 05/04/2017 | One Red Flag |
| George Burdekin Ltd | 01119647 | 11/09/2007 | Dissolved |
| George Burdekin Ltd | 01119647 | 11/09/2007 | Dissolved |
| J.A.G. Engineering Ltd | 03637169 | 30/04/2008 | Dissolved |
| J.A.G. Engineering Ltd | 03637169 | 30/04/2008 | Dissolved |
| MIDD AEROMECH ENGINEERS LIMITED | 05853066 | 01/04/2008 | Dissolved |
| MIDD AEROMECH ENGINEERS LIMITED | 05853066 | 01/04/2008 | Dissolved |
| RAY CAT LIMITED | 00760309 | 22/08/1991 | Silver |
| Taylorite Moulding Co Ltd | 00848010 | 22/08/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| FGP LUFTON LIMITED | 10867783 | 13/08/2018 | 29/01/2024 | One Red Flag |
| FGP SYSTEMS LIMITED | 09794421 | 13/08/2018 | 29/01/2024 | One Red Flag |
| HEARTLAND ENGINEERING LIMITED | 09502091 | 05/04/2017 | 29/01/2024 | Amber |
| MIDD ENGINEERING (COVENTRY) LIMITED | 03867807 | 22/12/1999 | 25/08/2020 | Silver |
| MIDD ENGINEERING (COVENTRY) LIMITED | 03867807 | 28/10/1999 | 25/08/2020 | Silver |
| MIDD GROUP LIMITED | 09595956 | 09/11/2015 | 28/08/2020 | Bronze |
| RAMP SURFACE COATINGS LIMITED | 09961115 | 13/08/2018 | 29/01/2024 | Silver |