| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A A MASON (CONSULTING) LTD | 09207837 | 08/09/2014 | Amber |
| A A MASON LIMITED | 06636917 | 17/02/2014 | One Red Flag |
| West Wing School (Thornbury) Educational Trust Ltd | 00664485 | 06/04/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Dalren Engineering & Machinery Ltd | 01112025 | 13/04/1992 | 22/10/1992 | Dissolved |
| Norio Plc | 01479287 | 12/03/1992 | 07/05/1992 | Dissolved |
| Orion Machinery Ltd | 02769977 | 15/10/1995 | 31/01/2001 | Dissolved |
| S.T.B. ENGINEERING LIMITED | 00958390 | 01/05/2011 | 31/12/2013 | One Red Flag |