| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Meriton Ltd | SC121555 | 23/09/1991 | Dissolved |
| S P E L Engineering Ltd | SC083514 | 29/08/1989 | Dissolved |
| Strathclyde Process Engineering Ltd | SC114542 | 10/08/1990 | Dissolved |
| W.J. Massey & Associates Ltd | 01171074 | 19/01/1993 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DOUGLAS ASHMEAD & PARTNERS LIMITED | SC057734 | 24/01/1990 | 19/11/2016 | Dissolved |
| DOUGLAS ASHMEAD & PARTNERS LIMITED | SC057734 | 24/01/1990 | 19/11/2016 | Dissolved |
| DUGDALES LIMITED | SC058930 | 31/12/1988 | 20/01/1994 | Dissolved |
| HIGHLAND COLOUR COATERS LIMITED | SC212755 | 03/04/2001 | 11/12/2015 | Silver |
| HIGHLAND ELECTROPLATERS LIMITED | SC107064 | 26/09/1989 | 30/01/2008 | Amber |
| HIGHLAND GALVANIZERS LIMITED | SC212756 | 03/04/2001 | 11/12/2015 | Not Trading |
| HIGHLAND METAL DEVELOPMENTS LIMITED | SC060107 | 23/12/1988 | 19/11/2016 | Gold |
| HIGHLAND METALS LIMITED | SC061436 | 22/12/1988 | 11/12/2015 | Gold |