| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AGORA CAPITAL LIMITED | 07095200 | 04/12/2009 | Dissolved |
| Assured Commerce Ltd | 04497861 | 20/03/2003 | Dissolved |
| SIGMA DERIVATIVES LIMITED | 05247316 | 02/10/2005 | Dissolved |
| SIGMA FUND MANAGEMENT LLP | OC339582 | 26/08/2008 | Insolvent |
| SIGMA FUTURES LIMITED | 07801238 | 07/10/2011 | Dissolved |
| SIGMA PARTNERS LIMITED | 09847828 | 29/10/2015 | Dissolved |
| Sigma Derivatives Holland Ltd | 05796093 | 26/04/2006 | Dissolved |
| Sigma Derivatives Management Services Ltd | 05847037 | 14/06/2006 | Dissolved |
| Sigma Sigma Ltd | 07026918 | 23/09/2009 | Dissolved |
| Sigma Squawk Ltd | 05579409 | 30/09/2005 | Dissolved |
| Sigma Squawk Ltd | 06323592 | 26/07/2007 | Dissolved |
| The Lincoln Castle Ltd | 07069517 | 08/11/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Koufir Options Uk Llp | OC305025 | 31/05/2004 | 01/04/2005 | Dissolved |
| SIGMA DERIVATIVES LIMITED | 05247316 | 11/10/2004 | 01/02/2006 | Dissolved |
| ZONE INVEST LTD | 07370744 | 09/09/2010 | 04/04/2012 | Dissolved |
| ZONE INVEST TRADING LLP | OC357781 | 08/09/2010 | 21/11/2011 | Dissolved |