| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DOLPHIN DRILLING LIMITED | 01017560 | 11/11/2019 | Amber |
| DOLPHIN DRILLING OFFSHORE LIMITED | 12795706 | 06/08/2020 | Bronze |
| HELLE ENGINEERING LIMITED | SC191750 | 12/09/2016 | Dissolved |
| HYDRAFIT SUBSEA U.K. LIMITED | SC264926 | 12/09/2016 | Dissolved |
| MCE RECEIVABLES LIMITED | SC079865 | 12/09/2016 | Dissolved |
| PROSERV CONTROLS LIMITED | SC419421 | 12/09/2016 | Dissolved |
| PROSERV PROPERTIES LIMITED | SC092950 | 12/09/2016 | Dissolved |
| PROSERV SUBSEA LIMITED | SC221592 | 12/09/2016 | Dissolved |
| SCOTECH INTERNATIONAL SERVICES LIMITED | SC191011 | 14/09/2016 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CIRCLE OFFSHORE LIMITED | SC194986 | 12/09/2016 | 28/06/2019 | Silver |
| FLY CUP ENTERPRISES LIMITED | SC205467 | 05/02/2021 | 09/09/2022 | One Red Flag |
| KRG INDUSTRIES LIMITED | SC083045 | 12/09/2016 | 28/06/2019 | Not Trading |
| PROSERV (1) LIMITED | SC372837 | 13/09/2016 | 28/06/2019 | Dissolved |
| PROSERV (2) LIMITED | SC225116 | 13/09/2016 | 28/06/2019 | Dissolved |
| PROSERV (3) LIMITED | SC062293 | 13/09/2016 | 28/06/2019 | Dissolved |
| PROSERV HOLDINGS LIMITED | SC422966 | 12/09/2016 | 28/06/2019 | Amber |
| PROSERV OFFSHORE LIMITED | SC235199 | 12/09/2016 | 28/06/2019 | Dissolved |
| PROSERV OPERATIONS LIMITED | 06210272 | 12/09/2016 | 28/06/2019 | Bronze |
| PROSERV UK LIMITED | SC122029 | 12/09/2016 | 28/06/2019 | Silver |
| STEPHEN GILLESPIE CONSULTANTS LIMITED | SC109198 | 31/01/2019 | 28/06/2019 | Dissolved |