| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BIOMNIA LIMITED | 04163095 | 02/07/2012 | Silver |
| D PUB LIMITED | 09699897 | 23/07/2015 | Bronze |
| EKWIENOX NOMINEES LIMITED | 05832214 | 14/06/2006 | Dissolved |
| S&m Collis Consultancy Llp | OC310776 | 24/12/2004 | Dissolved |
| Trading Systems Ltd | 04008205 | 05/06/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASPONE LIMITED | 05321620 | 11/04/2005 | 03/09/2011 | Dissolved |
| ASPONE LIMITED | 05321620 | 11/04/2005 | 13/09/2011 | Dissolved |
| ASPONE NETWORKS LIMITED | 06671371 | 12/08/2008 | 02/02/2011 | Dissolved |
| Alpha Petroleum Ltd | 02435024 | 25/02/1998 | 16/11/2001 | Dissolved |
| EKWIENOX LIMITED | 04969354 | 24/01/2005 | 09/07/2012 | Bronze |
| EKWIENOX LIMITED | 04969354 | 22/03/2005 | 09/07/2012 | Bronze |
| EKWIENOX SERVICES LIMITED | 06495370 | 06/02/2008 | 05/07/2012 | Dissolved |
| EKWIENOX TMS LIMITED | 05499571 | 03/02/2006 | 05/07/2012 | Silver |
| ELECTRA ENTERTAINMENT LIMITED | 04698318 | 23/03/2006 | 31/10/2007 | Dissolved |
| FOREX LIMITED | 01149343 | 02/11/1999 | 27/07/2001 | Dissolved |
| FULTON PREBON ADMINISTRATION LIMITED | 02564751 | 13/07/1993 | 27/07/2001 | Dissolved |
| FULTON PREBON GROUP LIMITED | 02637272 | 08/09/1993 | 16/11/2001 | Dissolved |
| International Telecom Brokers Ltd | 02699378 | 02/11/1999 | 07/07/2000 | Dissolved |
| LUMON EXCHANGE LTD | 03910588 | 24/04/2006 | 05/09/2012 | Gold |
| M W Marshall (Capital Markets) Holdings Ltd | 02018608 | 02/11/1999 | 16/11/2001 | Dissolved |
| M.W. MARSHALL (INTERNATIONAL) LIMITED | 01533957 | 22/06/1999 | 27/07/2001 | Dissolved |
| M.W. MARSHALL (LONDON) LIMITED | 02071490 | 02/11/1999 | 16/11/2001 | Dissolved |
| M.W. MARSHALL (OVERSEAS) LIMITED | 01060409 | 02/11/1999 | 16/11/2001 | Dissolved |
| M.W. Marshall (Services) Ltd | 02700988 | 23/06/1999 | 16/11/2001 | Dissolved |
| MARSHALLS (LONDON) INVESTMENT LIMITED | FC012068 | 02/11/1999 | 25/02/2002 | Bronze |
| MARSHALLS 106 LIMITED | 01496819 | 02/11/1999 | 16/11/2001 | Dissolved |
| ONLYMATCH LEASING LIMITED | 01692144 | 16/07/1993 | 27/07/2001 | Dissolved |
| PREBON GROUP LIMITED | 02230414 | 28/05/1999 | 05/09/2003 | Dissolved |
| PREBON INVESTMENTS LIMITED | 02627770 | 01/10/1993 | 27/07/2001 | Dissolved |
| PREBON LIMITED | 02699385 | 29/01/1998 | 16/11/2001 | N/A |
| PREBON SERVICES LIMITED | 02637278 | 11/08/1997 | 27/07/2001 | Dissolved |
| PREBON TECHNOLOGY GROUP LIMITED | 04006160 | 26/05/2000 | 14/07/2000 | Dissolved |
| PREBON TECHNOLOGY GROUP LIMITED | 04006160 | 26/05/2000 | 05/09/2003 | Dissolved |
| PREBON TECHNOLOGY HOLDINGS LIMITED | 04001084 | 19/05/2000 | 14/07/2000 | Dissolved |
| PREBON TECHNOLOGY HOLDINGS LIMITED | 04001084 | 19/05/2000 | 05/09/2003 | Dissolved |
| PREBON TECHNOLOGY LIMITED | 03810754 | 15/06/2000 | 14/07/2000 | Dissolved |
| PREBON TECHNOLOGY LIMITED | 03810754 | 15/06/2000 | 05/09/2003 | Dissolved |
| PREBON TECHNOLOGY SERVICES (EUROPE) LIMITED | 04027320 | 05/07/2000 | 14/07/2000 | Dissolved |
| PREBON TECHNOLOGY SERVICES (EUROPE) LIMITED | 04027320 | 05/07/2000 | 05/09/2003 | Dissolved |
| PREBON TECHNOLOGY SERVICES (UK) LIMITED | 04001093 | 19/05/2000 | 14/07/2000 | Dissolved |
| PREBON TECHNOLOGY SERVICES (UK) LIMITED | 04001093 | 19/05/2000 | 05/09/2003 | Dissolved |
| PREBON YAMANE INTERNATIONAL LIMITED | 02619854 | 17/10/1994 | 16/11/2001 | Silver |
| Trading Systems Ltd | 04008205 | 05/06/2000 | 14/07/2000 | Dissolved |
| WALLICH & MATTHES HOLDING B.V. | FC028418 | 18/06/2008 | 05/07/2012 | Amber |