| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AMELIN TRADING LIMITED | 09524949 | 02/04/2015 | Dissolved |
| INSIGNIA CAPITAL LIMITED | 07792265 | 03/11/2011 | Dissolved |
| NST PROPERTY INVESTMENTS LIMITED | 15775902 | 13/06/2024 | Amber |
| SIGMA COMMODITIES LIMITED | 11532480 | 22/08/2018 | One Red Flag |
| SIGMA FUND MANAGEMENT LLP | OC339582 | 26/08/2008 | Insolvent |
| SIGMA FUTURES LIMITED | 07801238 | 07/10/2011 | Dissolved |
| SIGMA INFORMATION SERVICES LIMITED | 06716171 | 06/10/2008 | Dissolved |
| SIGMA PARTNER HOLDINGS LLP | OC417438 | 20/05/2017 | Dissolved |
| SIGMA PARTNERS LIMITED | 09847828 | 29/10/2015 | Dissolved |
| SIGMA TRADING SERVICES LIMITED | 06688979 | 04/09/2008 | Strike Off |
| Sigma Sigma Ltd | 07026918 | 23/09/2009 | 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 |
|---|---|---|---|---|
| SIGMA BROKING LIMITED | 06584426 | 06/05/2008 | 24/07/2019 | Amber |
| SIGMA TRADING LIMITED | 09435081 | 11/02/2015 | 19/09/2022 | Dissolved |
| SIGMA TREASURY MANAGEMENT LIMITED | 12941261 | 09/10/2020 | 21/01/2021 | Bronze |
| ZONE INVEST LTD | 07370744 | 09/09/2010 | 04/04/2012 | Dissolved |
| ZONE INVEST TRADING LLP | OC357781 | 08/09/2010 | 21/11/2011 | Dissolved |