| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Crystal Air Filtration Ltd | 02554016 | 31/10/1991 | Dissolved |
| Crystal Clean Air Ltd | 02773500 | 07/01/1993 | Dissolved |
| Elanwood Ltd | 02817689 | 08/03/1995 | Dissolved |
| Elanwood Ltd | 02817689 | 25/05/1993 | Dissolved |
| Electrical Enclosures International Ltd | 02493477 | 09/04/1991 | Dissolved |
| Filterability Ltd | 02678591 | 01/05/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| M & K Engineering Ltd | 02863528 | 19/10/1993 | 11/01/1995 | Dissolved |