| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Cranemec Engineering Ltd | SC134916 | 31/01/1992 | Dissolved |
| Hi-Lo (Plant & Warehousing) Ltd | SC147828 | 02/12/1993 | Dissolved |
| Highland Blends Ltd | 02968964 | 16/09/1994 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AWS OCEAN ENERGY LIMITED | SC268223 | 19/10/2004 | 14/12/2005 | Amber |
| Cranemec Engineering Ltd | SC134916 | 08/11/1993 | 29/11/1995 | Dissolved |
| GLOBAL ENERGY (GROUP) LIMITED | SC106415 | 28/11/1990 | 29/11/1995 | Silver |
| GLOBAL ENERGY (GROUP) LIMITED | SC106415 | 16/03/1989 | 30/11/2006 | Silver |
| GLOBAL ISLEBURN LIMITED | SC089895 | 28/11/1990 | 29/11/1995 | Dissolved |
| GLOBAL ISLEBURN LIMITED | SC089895 | 31/05/1989 | 30/11/2006 | Dissolved |
| Highland Fertilisers Ltd | SC120854 | 12/12/1990 | 29/11/1995 | Dissolved |
| Highland Fertilisers Ltd | SC120854 | 18/10/1991 | 14/02/1996 | Dissolved |
| MACKAY STEELWORK & CLADDING LIMITED | SC161195 | 26/06/1998 | 29/07/2005 | Silver |
| SAFETY WELDING AND LIFTING (INTERNATIONAL) LIMITED | SC147636 | 07/06/1994 | 30/11/2006 | One Red Flag |