| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Amlwch Shipping Agency Limited | 01010257 | 12/12/1991 | Dissolved |
| Anglesey Shipping Agency Ltd | 01009953 | 12/12/1991 | Dissolved |
| HOLYHEAD MARINE SERVICES (SCOTLAND) LIMITED | SC112654 | 31/12/1989 | Insolvent |
| Land & Sea (Wales) Ltd | 02672661 | 23/01/1992 | Dissolved |
| Medway Marine Services Limited | 02450701 | 12/12/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| FLEXBRUSH LIMITED | 01952388 | 12/12/1991 | 08/03/1999 | Dissolved |
| HOLYHEAD BOATYARD LIMITED | 00724907 | 12/12/1991 | 15/03/1999 | Gold |
| HOLYHEAD MARINE SERVICES LIMITED | 00895484 | 19/04/1992 | 15/03/1999 | Gold |
| HOLYHEAD TOWING COMPANY LIMITED | 00871758 | 12/12/1991 | 15/03/1999 | Gold |
| Holyhead Shipping Agency Ltd | 00789913 | 12/12/1991 | 15/03/1999 | Dissolved |
| Land & Sea (Wales) Ltd | 02672661 | 23/01/1992 | 06/03/1992 | Dissolved |
| Marine Salvors Limited | 02452462 | 12/12/1991 | 03/02/1992 | Dissolved |
| Penrhos Plant Hire Ltd | 01499563 | 12/12/1991 | 15/03/1999 | Dissolved |