| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CERTECH INTERNATIONAL LIMITED | 01893781 | 18/09/2020 | Not Trading |
| CLEARPOWER LIMITED | 06247523 | 24/09/2019 | Amber |
| MCCO LIMITED | 03246886 | 31/10/2004 | Amber |
| MORGAN ELECTRO CERAMICS LIMITED | 00112286 | 18/09/2020 | Not Trading |
| MORGAN EUROPE HOLDING LIMITED | 02540399 | 31/12/2005 | Silver |
| MORGAN HOLDINGS LIMITED | 01956134 | 18/04/2016 | Silver |
| MORGAN NORTH AMERICA HOLDING LIMITED | 08789720 | 18/04/2016 | Silver |
| MORGAN TRANS LIMITED | 02557161 | 29/02/2016 | Amber |
| MORGANITE CARBON LIMITED | 00679647 | 31/10/2004 | Silver |
| MORGANITE CRUCIBLE LIMITED | 02133533 | 31/03/2015 | Silver |
| MORGANITE SPECIAL CARBONS LIMITED | 01034654 | 18/09/2020 | Not Trading |
| PETTY FRANCE INVESTMENT NOMINEES LIMITED | 01296533 | 18/09/2020 | Not Trading |
| TCG GUARDIAN 1 LIMITED | 05564034 | 24/09/2019 | Not Trading |
| TCG GUARDIAN 2 LIMITED | 05564065 | 24/09/2019 | Silver |
| TERRASSEN HOLDINGS LIMITED | 01352995 | 18/04/2016 | Silver |
| THE MORGAN CRUCIBLE COMPANY LIMITED | 07328730 | 28/07/2010 | Bronze |
| THERMAL CERAMICS LIMITED | 01274806 | 18/09/2020 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BELL CONCORD EDUCATIONAL TRUST LIMITED(THE) | 01503040 | 08/04/2011 | 24/09/2015 | Gold |
| CERTECH INTERNATIONAL LIMITED | 01893781 | 04/07/2016 | 28/06/2018 | Not Trading |
| LAW DEBENTURE MC SENIOR PENSION TRUST CORPORATION | 03367648 | 28/09/2004 | 24/05/2011 | Dissolved |
| MCCO LIMITED | 03246886 | 31/10/2004 | 28/06/2018 | Amber |
| MORGAN ADVANCED MATERIALS PLC | 00286773 | 01/01/2007 | 02/10/2017 | Silver |
| MORGAN CRUCIBLE PENSION TRUSTEES LIMITED | 02017656 | 28/09/2004 | 24/05/2011 | Dissolved |
| MORGAN ELECTRO CERAMICS LIMITED | 00112286 | 04/07/2016 | 28/06/2018 | Not Trading |
| MORGAN EUROPE HOLDING LIMITED | 02540399 | 31/10/2004 | 28/06/2018 | Silver |
| MORGAN HOLDINGS LIMITED | 01956134 | 31/10/2004 | 28/06/2018 | Silver |
| MORGAN TRANS LIMITED | 02557161 | 31/10/2004 | 28/06/2018 | Amber |
| MORGANITE CARBON LIMITED | 00679647 | 31/10/2004 | 28/06/2018 | Silver |
| MORGANITE SPECIAL CARBONS LIMITED | 01034654 | 18/04/2016 | 28/06/2018 | Not Trading |
| PETTY FRANCE INVESTMENT NOMINEES LIMITED | 01296533 | 31/10/2004 | 28/06/2018 | Not Trading |
| PETTY FRANCE INVESTMENT NOMINEES LIMITED | 01296533 | 18/04/2016 | 28/06/2018 | Not Trading |
| TERRASSEN HOLDINGS LIMITED | 01352995 | 31/10/2004 | 28/06/2018 | Silver |
| THERMAL CERAMICS EUROPE LIMITED | 01476692 | 31/10/2004 | 16/12/2010 | Dissolved |
| THERMAL CERAMICS LIMITED | 01274806 | 31/10/2004 | 28/06/2018 | Not Trading |
| THERMAL CERAMICS LIMITED | 01274806 | 31/10/2004 | 28/06/2018 | Not Trading |
| THERMAL CERAMICS UK LIMITED | 00890443 | 31/10/2004 | 31/10/2010 | Bronze |