| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AMTE POWER PLC | 08490522 | 14/04/2020 | Insolvent |
| JOHNSON MATTHEY PRINT LIMITED | 02886626 | 03/03/1994 | Dissolved |
| Johnson Matthey Services Ltd | 02914915 | 19/10/1999 | Dissolved |
| Matthey,Johnson,Ceramics & Materials Ltd | 02886627 | 03/03/1994 | Dissolved |
| Microcina Holdings Europe Ltd | 03113325 | 17/06/1998 | Dissolved |
| Microcina U K Ltd | 02882068 | 17/06/1998 | Dissolved |
| NOVA PANGAEA (HOLDINGS) LTD | 10117710 | 07/12/2021 | One Red Flag |
| NOVA PANGAEA TECHNOLOGIES (UK) LIMITED | 08881891 | 07/12/2021 | One Red Flag |
| PIAZZA BARNALOFT MANAGEMENT LIMITED | 02134370 | 10/04/2012 | Gold |
| ZIRFID 2 LIMITED | 03165152 | 22/09/1999 | Dissolved |
| Zirfid 3 Ltd | 03165158 | 22/09/1999 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACMA LIMITED | 00531753 | 01/11/2002 | 21/07/2009 | Dissolved |
| AVOCADO RESEARCH CHEMICALS LIMITED | 02682211 | 07/02/2002 | 21/07/2009 | Silver |
| CASCADE BIOCHEM LIMITED | 02327661 | 17/10/2002 | 21/07/2009 | Dissolved |
| Davy Process Technology Research Ltd | 04764737 | 01/02/2006 | 26/06/2009 | Dissolved |
| ECONIC TECHNOLOGIES LTD | 07681400 | 29/07/2011 | 11/09/2018 | Amber |
| FUEL CELL TODAY LIMITED | 04241894 | 03/09/2001 | 21/07/2009 | Dissolved |
| HARGREAVES SERVICES PLC | 04952865 | 24/02/2012 | 01/08/2018 | Silver |
| JOHNSON MATTHEY (CM) LIMITED | 02885614 | 05/04/1994 | 21/07/2009 | Dissolved |
| JOHNSON MATTHEY AMERICA HOLDINGS LIMITED | 03642634 | 19/10/1999 | 21/07/2009 | Dissolved |
| JOHNSON MATTHEY DAVY TECHNOLOGIES INTERNATIONAL LIMITED | 00247298 | 01/02/2006 | 21/07/2009 | Insolvent |
| JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED | 00635311 | 01/02/2006 | 21/07/2009 | Bronze |
| JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LIMITED | 04393161 | 07/11/2002 | 22/04/2009 | Amber |
| JOHNSON MATTHEY INVESTMENTS LIMITED | 01004368 | 19/05/1998 | 21/07/2009 | Silver |
| JOHNSON MATTHEY PLC | 00033774 | 01/08/1999 | 21/07/2009 | Bronze |
| JOHNSON MATTHEY PRECIOUS METALS LIMITED | 03657767 | 07/04/1999 | 21/07/2009 | Gold |
| JOHNSON MATTHEY TIANJIN HOLDINGS LIMITED | 05391061 | 09/08/2005 | 01/07/2009 | Bronze |
| KATALCO LIMITED | 04496563 | 11/11/2002 | 21/07/2009 | Dissolved |
| MACFARLAN SMITH LIMITED | SC035640 | 31/01/2002 | 21/07/2009 | Silver |
| MATTHEY FINANCE LIMITED | 00301279 | 19/05/1998 | 21/07/2009 | Silver |
| MATTHEY HOLDINGS LIMITED | 03130188 | 19/10/1999 | 21/07/2009 | Silver |
| MECONIC LIMITED | SC121849 | 13/09/2001 | 21/07/2009 | Dissolved |
| Microcina Holdings Europe Ltd | 03113325 | 31/10/1995 | 13/02/1997 | Dissolved |
| Microcina U K Ltd | 02882068 | 27/11/1995 | 13/02/1997 | Dissolved |
| Mvs Realisations Ltd | 03721522 | 15/04/1999 | 30/04/1999 | Dissolved |
| NORD GOLD PLC | 13287342 | 23/03/2021 | 07/03/2022 | Strike Off |
| NORD GOLD UK SOCIETAS | SE000102 | 24/06/2016 | Bronze | |
| PANELFORTH LIMITED | 04352557 | 30/01/2002 | 21/07/2009 | Dissolved |
| PHOSPHONICS LIMITED | 04829817 | 01/07/2011 | 03/01/2017 | Bronze |
| RIVERSOFT LIMITED | 03773981 | 23/11/2000 | 30/07/2002 | Dissolved |
| Riversoft Technologies Ltd | 03318423 | 16/11/2000 | 13/03/2002 | Dissolved |
| SYNETIX LIMITED | 04496572 | 11/11/2002 | 21/07/2009 | Dissolved |
| THE ROYAL MINT LIMITED | 06964873 | 01/09/2013 | 21/09/2020 | Bronze |
| TRACERCO LIMITED | 04496566 | 11/11/2002 | 21/07/2009 | Silver |
| VSF RESIN & VARNISH LIMITED | 03590818 | 11/02/2003 | 21/07/2009 | Dissolved |
| ZIRCOSIL OVERSEAS HOLDINGS | 02886629 | 05/04/1994 | 28/02/2007 | Dissolved |