| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| FORTEM HOLDINGS LIMITED | 01205094 | 01/05/1995 | 01/07/2000 | Not Trading |
| MIDDLETON GROUP SERVICES LIMITED | 05835892 | 26/09/2012 | 02/05/2017 | Silver |
| MIDDLETON SERVICES LIMITED | 06007314 | 09/01/2007 | 31/08/2011 | Dissolved |
| Middleton Maintenance Group Plc | 00875637 | 01/10/1992 | 13/04/1995 | Dissolved |
| Promptvale Ltd | 02581498 | 11/02/1992 | 02/04/1993 | Dissolved |
| TRIOS FACILITIES MANAGEMENT LIMITED | 03616663 | 26/09/2012 | 04/11/2016 | One Red Flag |
| TRIOS SKILZ LIMITED | 03649813 | 26/09/2012 | 04/11/2016 | Not Trading |
| TRIOSGROUP LIMITED | 05231558 | 09/11/2005 | 15/09/2011 | One Red Flag |
| WILLMOTT DIXON SUSTAIN LIMITED | 04638952 | 19/03/2003 | 02/09/2005 | Dissolved |