| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ASCO (DC1) LIMITED | SC052495 | 27/02/2013 | Dissolved |
| ASCO DEVELOPMENTS LIMITED | SC137921 | 27/02/2013 | Dissolved |
| OILBASE MANAGEMENT LIMITED | SC136843 | 27/02/2013 | Dissolved |
| VENTURE FREIGHT MANAGEMENT LIMITED | SC204814 | 27/02/2013 | Dissolved |
| WOODACON OILS LIMITED | SC045518 | 27/02/2013 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASCO (DC2) LIMITED | 05898050 | 01/08/2007 | 04/12/2014 | One Red Flag |
| ASCO (DC3) LIMITED | 05916071 | 27/02/2013 | 04/12/2014 | One Red Flag |
| ASCO (DC4) LIMITED | 05898058 | 27/02/2013 | 04/12/2014 | One Red Flag |
| ASCO ACQUISITIONS LIMITED | 07841296 | 12/12/2012 | 04/12/2014 | Amber |
| ASCO AVIATION LIMITED | SC404605 | 27/02/2013 | 04/12/2014 | Dissolved |
| ASCO DECOMMISSIONING LIMITED | SC180242 | 27/02/2013 | 04/12/2014 | Amber |
| ASCO FREIGHT MANAGEMENT LIMITED | SC202171 | 02/10/2013 | 04/12/2014 | Amber |
| ASCO GROUP LIMITED | 07853258 | 12/12/2012 | 04/12/2014 | Silver |
| ASCO HOLDINGS LIMITED | SC300658 | 27/02/2013 | 04/12/2014 | Bronze |
| ASCO JV HOLDINGS LIMITED | SC346041 | 19/09/2008 | 04/12/2014 | Amber |
| ASCO MARINE LIMITED | SC316087 | 27/02/2013 | 04/12/2014 | Amber |
| ASCO PROPERTIES LIMITED | SC300657 | 27/02/2013 | 04/12/2014 | Bronze |
| ASCO UK LIMITED | SC029934 | 06/11/2007 | 04/12/2014 | Gold |
| CARILLION (AMBS) LIMITED | SC020258 | 26/06/2000 | 15/06/2007 | Insolvent |
| EDWIN JAMES GROUP LIMITED | SC507737 | 01/11/2017 | 25/11/2024 | Amber |
| EJ ACQUISITION COMPANY LIMITED | SC647521 | 19/11/2019 | 25/11/2024 | Not Trading |
| EJ MUSK PROCESS SERVICES (PETERBOROUGH) LTD | 02727513 | 10/11/2017 | 16/11/2020 | Amber |
| EJ MUSK PROCESS SERVICES GROUP LIMITED | 08105771 | 10/11/2017 | 16/11/2020 | Silver |
| EJ MUSK PROCESS SERVICES LTD | SC632888 | 10/06/2019 | 16/11/2020 | Amber |
| EXPRESS BIDCO LIMITED | 14419547 | 23/03/2023 | 25/11/2024 | Silver |
| EXPRESS HOLDCO LIMITED | 14417231 | 23/03/2023 | 25/11/2024 | Silver |
| NORTH SEA LIFTING LIMITED | SC117356 | 28/06/2012 | 04/12/2014 | Amber |
| ONIQUA EUROPE LIMITED | SC449016 | 01/05/2013 | 04/12/2014 | Not Trading |
| RAMCO ACQUISITION LIMITED | SC443468 | 01/05/2015 | 31/10/2017 | Insolvent |
| RAMCO HOLDINGS LIMITED | SC286980 | 01/05/2015 | 01/11/2017 | Amber |
| RAMCO OIL SERVICES INTERNATIONAL LIMITED | SC083958 | 01/05/2015 | 31/10/2017 | One Red Flag |
| RAMCO OIL SERVICES LIMITED | SC131741 | 01/05/2015 | 31/10/2017 | Silver |
| RAMCO PIPELINE SERVICES LIMITED | SC090368 | 01/05/2015 | 31/10/2017 | Dissolved |
| RAMCO TUBULAR SERVICES LIMITED | SC099251 | 01/05/2015 | 31/10/2017 | Insolvent |
| SCRABSTER PORT SERVICES LIMITED | SC172882 | 03/07/2009 | 04/12/2014 | Dissolved |
| SELETAR SHIPPING LIMITED | SC348161 | 27/02/2013 | 04/12/2014 | Amber |
| TANNOCHSIDE PARK (MANAGEMENT) LIMITED | SC145168 | 11/01/2007 | 15/06/2007 | Bronze |
| TREERANGE LIMITED | 05030457 | 10/11/2017 | 20/01/2021 | Dissolved |
| WATER PROCESS SERVICES LIMITED | SC642422 | 24/09/2019 | 25/11/2024 | Not Trading |