| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Bruce Marine Ltd | SC110954 | 01/10/2005 | Dissolved |
| HARRIER HOMES LIMITED | 09240307 | 29/09/2014 | Dissolved |
| Haven Shipping Co Ltd | SC044380 | 01/10/2005 | Dissolved |
| PQ (LBORO) LIMITED | 11907776 | 10/04/2019 | Bronze |
| PROJECT WAVE 2 LIMITED | 07867341 | 22/12/2011 | Dissolved |
| Putford Ltd | 01156004 | 01/10/2005 | Dissolved |
| STIRLING MARINE LIMITED | SC108613 | 01/10/2005 | Dissolved |
| Seacor Capital Two Ltd | 04182031 | 01/10/2005 | Dissolved |
| Seacor-Smit Holdings B.V. | FC023034 | 01/10/2005 | Dissolved |
| Stirling Shipmanagement Ltd | SC182248 | 01/10/2005 | Dissolved |
| Stirling Trustees Ltd | SC160232 | 01/10/2005 | Dissolved |
| VECTOR-SEACOR LTD | 02600004 | 01/10/2005 | Dissolved |
| Warbler Shipping Ltd | 00986544 | 01/10/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Andrew Jarrold Ltd | 03845558 | 21/08/2001 | 31/03/2003 | Dissolved |
| BOSTON PUTFORD OFFSHORE SAFETY LIMITED | 00455971 | 01/10/2005 | 30/09/2018 | Amber |
| C B Controls Ltd | 04104220 | 08/11/2000 | 01/04/2002 | Dissolved |
| CTV CREWING SERVICES LTD | 08712331 | 01/10/2013 | 12/01/2021 | Silver |
| Dawkins & Newman Ltd | 01338627 | 13/02/1996 | 31/03/2002 | Dissolved |
| FELICITY (SOUTHWOLD) LIMITED | 02204487 | 11/12/1998 | 14/03/2001 | Dissolved |
| FELICITY (SOUTHWOLD) LIMITED | 02204487 | 11/12/1998 | 14/03/2001 | Dissolved |
| L.E.C. Marine (Lowestoft) Ltd | 00886612 | 31/07/1995 | 01/04/2002 | Dissolved |
| L.E.C. Marine (Lowestoft) Ltd | 00886612 | 24/04/1997 | 01/04/2002 | Dissolved |
| LINK ASSOCIATES INTERNATIONAL GLOBAL LIMITED | 04149070 | 07/09/2007 | 21/12/2009 | Dissolved |
| LOWESTOFT OFFSHORE SERVICES LIMITED | 01644630 | 31/07/1995 | 01/04/2002 | Silver |
| LOWESTOFT OFFSHORE SERVICES LIMITED | 01644630 | 24/04/1997 | 01/04/2002 | Silver |
| NRC SERVICING LIMITED | 05206751 | 01/11/2004 | 23/12/2009 | One Red Flag |
| SEACOR CAPITAL (UK) LIMITED | 03952530 | 01/10/2005 | 30/09/2018 | Bronze |
| SEACOR INTERNATIONAL LIMITED | 03289386 | 01/10/2005 | 28/11/2011 | Dissolved |
| SEACOR MARINE (INTERNATIONAL) LIMITED | 04325263 | 01/10/2005 | 30/09/2018 | Silver |
| SOUTHERN CREWING SERVICES LIMITED | 02858994 | 01/10/2005 | 30/09/2018 | Gold |
| STIRLING OFFSHORE LIMITED | SC041594 | 01/10/2005 | 30/09/2018 | Amber |
| STIRLING SHIPPING COMPANY LIMITED | SC159842 | 01/10/2005 | 30/09/2018 | Silver |
| STIRLING SHIPPING HOLDINGS LIMITED | SC212855 | 01/10/2005 | 30/09/2018 | Silver |
| WINDCAT WORKBOATS (SCOTLAND) LIMITED | SC450747 | 24/06/2013 | 12/01/2021 | Silver |
| WINDCAT WORKBOATS (WALES) CYF | 08542689 | 24/06/2013 | 12/01/2021 | Not Trading |
| WINDCAT WORKBOATS HOLDINGS LTD | 07877635 | 09/12/2011 | 12/01/2021 | Bronze |
| WINDCAT WORKBOATS LIMITED | 04381798 | 22/12/2011 | 12/01/2021 | Bronze |
| WINDGRIP LIMITED | 08999969 | 16/04/2014 | 12/01/2021 | Strike Off |
| WITT O'BRIEN'S LTD | 02261971 | 07/09/2007 | 21/12/2009 | Dissolved |