| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALGONEXT LIMITED | 10528735 | 30/10/2018 | Dissolved |
| Broad Street Europe Llp | OC349473 | 21/10/2009 | Dissolved |
| CARBONPLACE LIMITED | 13915306 | 21/03/2023 | Bronze |
| CARBONPLACE MATCHED PRINCIPAL LIMITED | 15877608 | 05/08/2024 | Amber |
| CARBONPLACE UK LIMITED | 14551270 | 27/02/2024 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALGOMI LIMITED | 08111389 | 06/06/2018 | 06/03/2020 | One Red Flag |
| BROADSTREET (LONDON) LIMITED | 07005724 | 01/09/2009 | 21/06/2010 | Dissolved |
| HEROPRENEURS | 07065815 | 01/09/2010 | 20/10/2011 | Silver |
| MARKETAXESS CAPITAL LIMITED | 09777893 | 15/09/2015 | 15/12/2017 | Gold |
| MARKETAXESS EUROPE LIMITED | 04017610 | 25/06/2015 | 15/12/2017 | Silver |
| MARKETAXESS LIMITED | 08263975 | 25/06/2015 | 15/12/2017 | Gold |
| MARKETAXESS POST-TRADE LIMITED | 01917944 | 25/06/2015 | 15/12/2017 | Gold |
| SEEQUESTOR LIMITED | 09117684 | 11/01/2022 | 09/03/2023 | Insolvent |
| TRAX LIMITED | 02273540 | 27/07/2015 | 15/12/2017 | Not Trading |