| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| D D S Training & Development Ltd | 02430929 | 08/11/1991 | Dissolved |
| Durrant Diving Ltd | 03869050 | 01/11/1999 | Dissolved |
| Durrant Diving Services Ltd | 02216558 | 31/07/1991 | Dissolved |
| FLOW CONTROL ENGINEERING LTD | 08972610 | 02/04/2014 | Dissolved |
| SAFETY-ONBOARD SYSTEMS LIMITED | 06908882 | 18/05/2009 | Dissolved |
| UNDERWATER SURVEYS LIMITED | 04088043 | 21/12/2009 | Strike Off |
| Usl-Europa Ltd | 05100384 | 13/04/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Combined Resources Uk Ltd | 03846650 | 22/09/1999 | 12/07/2000 | Dissolved |
| SCOUR PREVENTION SYSTEMS LTD | 07004281 | 28/08/2009 | 01/08/2016 | Dissolved |
| UNDERWATER SURVEYS LIMITED | 04088043 | 11/10/2000 | 11/10/2010 | Strike Off |