| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BIZESP LIMITED | 05309905 | 28/04/2005 | Dissolved |
| BIZESP LIMITED | 05309905 | 28/04/2005 | Dissolved |
| GEOGEN LIMITED | 13117607 | 06/01/2021 | Gold |
| GEON ENERGY LIMITED | 09325908 | 25/11/2014 | Not Trading |
| GEOTHERMAL ENGINEERING LIMITED | 06663174 | 25/06/2009 | Bronze |
| JAKEMANS LEASING LIMITED | 06845640 | 08/12/2020 | Bronze |
| MANHAY GEOTHERMAL LIMITED | 15459562 | 01/02/2024 | Amber |
| PENHALLOW GEOTHERMAL LIMITED | 15459532 | 01/02/2024 | Amber |
| UNITED DOWNS LITHIUM LIMITED | 14461498 | 04/11/2022 | Bronze |
| WIZDISH LIMITED | 06879638 | 17/04/2015 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CAPTEUR SENSORS AND ANALYSERS LIMITED | 02475628 | 29/06/1998 | 01/08/2000 | Dissolved |
| CAPTEUR SENSORS AND ANALYSERS LIMITED | 02475628 | 29/06/1998 | 01/08/2000 | Dissolved |
| CELLPLAN LTD | 09962594 | 21/01/2016 | 17/12/2018 | Strike Off |
| ICONIC LABS PLC | 10197256 | 24/05/2016 | 18/10/2018 | One Red Flag |
| MC 497 LIMITED | 07987350 | 18/04/2012 | 18/12/2012 | Dissolved |
| MC 498 LIMITED | 08036733 | 18/04/2012 | 18/12/2012 | Dissolved |
| MOTUS VR LIMITED | 13439478 | 04/06/2021 | 26/07/2021 | Silver |
| RAYSPEC LIMITED | 03449630 | 16/05/2012 | 18/12/2012 | Gold |
| SENTEC LTD | 03452194 | 01/08/2013 | 18/11/2015 | Gold |
| SGX SENSORTECH (IS) LIMITED | 08067077 | 14/05/2012 | 18/12/2012 | Dissolved |
| UNITED DOWNS GEOTHERMAL LIMITED | 10868073 | 17/07/2017 | 24/02/2023 | Amber |
| WIDEACADEMY LTD | 09963544 | 21/01/2016 | 17/12/2018 | Dissolved |
| WIDECELLS INTERNATIONAL LIMITED | 08150010 | 01/10/2015 | 17/12/2018 | Strike Off |
| WIDECELLS LTD | 08202804 | 11/05/2016 | 17/12/2018 | Dissolved |