| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ELLIS MECHANICAL SERVICES (UK) LIMITED | 00234931 | 11/10/1992 | Dissolved |
| Ellis Aster Electrical Ltd | 01510935 | 11/10/1991 | Dissolved |
| Ellis Fire Protection International Ltd | 01515380 | 11/10/1991 | Dissolved |
| Ellis Maintenance & Services Ltd | 01302731 | 11/10/1991 | Dissolved |
| Ellis Manpower Ltd | 01394192 | 31/12/1991 | Dissolved |
| Ellis Mechanical Services (International) Ltd | 01214122 | 11/10/1991 | Dissolved |
| Ellis Pakistan Ltd | 01515335 | 31/12/1991 | Dissolved |
| Ellis Southern Ltd | 01445400 | 11/10/1991 | Dissolved |
| Iceford Engineers Ltd | 01654865 | 31/12/1991 | Dissolved |
| Longmark Limited | 01628035 | 11/10/1991 | Dissolved |
| Reelround Limited | 01673780 | 11/10/1991 | Dissolved |
| TYLIN CAE LIMITED | 00974442 | 11/10/1991 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ELLIS MECHANICAL SERVICES LIMITED | 00963218 | 31/12/1991 | 07/10/1996 | Gold |