| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Abertechniques Ltd | SC118016 | 02/06/1997 | Dissolved |
| Aqua Marine Diving Supplies Ltd | 02132770 | 02/05/1997 | Dissolved |
| Code International Holdings Ltd | SC118017 | 02/06/1997 | Dissolved |
| Dynamco Holdings Ltd | 02816646 | 02/06/1997 | Dissolved |
| HYDROSPACE LIMITED | SC227061 | 19/03/2002 | Dissolved |
| LIFE SUPPORT ENGINEERING LIMITED | SC342699 | 04/07/2008 | Dissolved |
| LIFE SUPPORT ENGINEERING LIMITED | SC342699 | 04/07/2008 | Dissolved |
| M.S. (Holdings) Ltd | 01348378 | 24/08/1991 | Dissolved |
| SPYDA SYSTEMS LIMITED | SC335028 | 08/09/2009 | Dissolved |
| SPYDA SYSTEMS LIMITED | SC335028 | 20/08/2009 | Dissolved |
| Seventide Ltd | 01370068 | 19/11/1991 | Dissolved |
| Sub Sea Services Ltd | 01138699 | 02/08/1991 | Dissolved |
| Swift Marine Ltd | SC161185 | 02/06/1997 | Dissolved |
| U W I Ltd | 01174776 | 02/06/1997 | Dissolved |
| Uwi Circle Ltd | SC087521 | 02/06/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| C TECNICS LIMITED | SC303904 | 21/01/2010 | 02/01/2023 | Bronze |
| DIVEX LIMITED | SC390704 | 22/12/2010 | 09/02/2015 | Not Trading |
| FRIENDS OF MIDMAR INN COMMUNITY COMPANY | SC337914 | 15/02/2008 | 19/05/2011 | Dissolved |
| INTEGRATED SAFETY MANAGEMENT LIMITED | SC265286 | 29/11/2004 | 09/02/2015 | Dissolved |
| INTEGRATED SAFETY MANAGEMENT LIMITED | SC265286 | 29/11/2004 | 09/02/2015 | Dissolved |
| JFD LIMITED | SC123684 | 19/03/1993 | 12/04/2002 | Silver |
| PRESSURE PRODUCTS LIMITED | 01798734 | 24/08/1991 | 12/04/2002 | Dissolved |
| PROFESSIONAL DIVING ACADEMY LIMITED | SC264798 | 27/05/2004 | 18/06/2010 | Silver |
| Seventide Ltd | 01370068 | 19/11/1991 | 18/12/1992 | Dissolved |
| THE NATIONAL HYPERBARIC CENTRE LIMITED | SC058099 | 02/12/2004 | 09/02/2015 | Dissolved |
| THE NATIONAL HYPERBARIC CENTRE LIMITED | SC058099 | 02/12/2004 | 09/02/2015 | Dissolved |