| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| E-Crossnet | 03644074 | 28/02/2005 | Dissolved |
| Hoenig & Co | 01946963 | 09/09/2002 | Dissolved |
| Seton Financial Markets Ltd | 03188071 | 19/04/1996 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| B T Securities (Europe) Ltd | 02087860 | 08/08/1992 | 08/08/1993 | Dissolved |
| CBOE CHI-X EUROPE LIMITED | 01651728 | 19/01/2010 | 30/11/2011 | Gold |
| HSBC INVESTMENT RESIDUARY LIMITED | 00976092 | 12/09/1994 | 29/03/1996 | Dissolved |
| INALYTICS LTD | 03512449 | 16/07/2001 | 21/11/2002 | Gold |
| INVESTMENT TECHNOLOGY GROUP EUROPE LIMITED | FC021373 | 07/10/1998 | 27/03/2009 | Amber |
| VIRTU ITG UK LIMITED | 03791083 | 06/12/2007 | 27/03/2009 | Gold |