| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALBYN SCHOOL LIMITED | SC026743 | 28/01/2022 | Silver |
| BELL & ASSOCIATES LIMITED | SC442582 | 12/02/2013 | Silver |
| CALEDONIAN ENERGY INTERNATIONAL LIMITED | SC188216 | 01/02/2000 | Dissolved |
| G.D.B. Consultancy Ltd | SC189245 | 10/09/1998 | Dissolved |
| G.D.B. Consultancy Ltd | SC189245 | 10/09/1998 | Dissolved |
| INNOVO ENGINEERING AND CONSTRUCTION LIMITED | SC434959 | 01/11/2023 | Gold |
| Northern Industries Subsea Solutions Ltd | SC325244 | 10/08/2007 | Dissolved |
| THE ALBYN FOUNDATION | SC348754 | 28/06/2024 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CALEDONIAN ENERGY INTERNATIONAL LIMITED | SC188216 | 01/02/2000 | 11/12/2002 | Dissolved |
| HELLE ENGINEERING LIMITED | SC191750 | 28/10/2005 | 29/06/2007 | Dissolved |
| INNOVO ENGINEERING AND CONSTRUCTION LIMITED | SC434959 | 01/09/2016 | 31/12/2021 | Gold |
| JDR CABLE SYSTEMS (HOLDINGS) LIMITED | SC186919 | 21/12/1998 | 28/11/2000 | Amber |
| JDR CABLE SYSTEMS (HOLDINGS) LIMITED | SC186919 | 21/12/1998 | 28/11/2000 | Amber |
| JDR CABLE SYSTEMS (NETHERLANDS) LIMITED | SC187611 | 22/12/1998 | 28/11/2000 | Dissolved |
| JDR CABLE SYSTEMS LIMITED | SC186794 | 22/12/1998 | 28/11/2000 | Silver |
| PROSERV (2) LIMITED | SC225116 | 01/08/2003 | 24/05/2007 | Dissolved |
| PROSERV (3) LIMITED | SC062293 | 27/01/2006 | 29/06/2007 | Dissolved |
| PROSERV (3) LIMITED | SC062293 | 01/09/2003 | 29/06/2007 | Dissolved |
| REACH SUBSEA UK LTD | SC455367 | 01/10/2015 | 30/06/2022 | One Red Flag |
| ZIPFENCE LIMITED | 02592944 | 28/10/2005 | 29/06/2007 | Dissolved |