| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| EXTERION FIREWALKER II (BDA) LIMITED | FC031630 | 10/07/2014 | Dissolved |
| EXTERION HOLDINGS I (UK) | 03696712 | 06/10/2014 | Dissolved |
| EXTERION HOLDINGS II (UK) LIMITED | 02942115 | 06/10/2014 | Dissolved |
| RUBIX DIRECT LIMITED | 14611008 | 23/01/2023 | Dissolved |
| RUBIX GROUP U.K. LIMITED | 12325369 | 24/01/2022 | Dissolved |
| SLR BD LIMITED | 11182615 | 01/07/2024 | One Red Flag |
| SLR GLOBAL LIMITED | 11182524 | 16/09/2024 | Amber |
| SLR GROUP LIMITED | 02952410 | 01/07/2024 | Not Trading |
| SLR HD LIMITED | 11182575 | 01/07/2024 | Silver |
| SLR HOLDINGS LIMITED | 05134073 | 01/07/2024 | Gold |
| SLR INTERMEDIATE HOLDING COMPANY LIMITED | 04007623 | 01/07/2024 | Not Trading |
| SLR MANAGEMENT LIMITED | 06538090 | 01/07/2024 | Bronze |
| SLR MD LIMITED | 11182598 | 01/07/2024 | Silver |
| SLR TRUSTEE LIMITED | 03882714 | 28/05/2024 | Not Trading |
| SOLAR HOLDINGS BIDCO LIMITED | 14161246 | 01/07/2024 | Not Trading |
| SOLAR HOLDINGS HOLDCO LIMITED | 14161650 | 01/07/2024 | Not Trading |
| SOLAR HOLDINGS MIDCO 2 LIMITED | 14232097 | 01/07/2024 | Not Trading |
| SOLAR HOLDINGS MIDCO LIMITED | 14159872 | 01/07/2024 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AEGIS DEFENCE SERVICES LIMITED | 04541965 | 01/06/2020 | 15/09/2021 | Bronze |
| BRAMMER VENDING LIMITED | 08174367 | 08/12/2021 | 31/03/2024 | Bronze |
| COMPCARE COMPRESSED AIR LTD | 06401666 | 25/01/2022 | 01/03/2023 | Silver |
| EXTERION HOLDINGS (UK) LIMITED | 06350231 | 10/07/2014 | 08/01/2018 | Silver |
| EXTERION LEASING (BDA) LIMITED | FC031366 | 17/10/2014 | 08/01/2018 | Dissolved |
| EXTERION LEASING (UK) LIMITED | 06423332 | 06/10/2014 | 08/01/2018 | Silver |
| HELIOS TOWERS PARTNERS (UK) LIMITED | 11849776 | 27/02/2019 | 31/03/2020 | One Red Flag |
| HELIOS TOWERS PLC | 12134855 | 03/09/2019 | 12/09/2019 | Amber |
| HTA (UK) PARTNER LTD | 07564867 | 29/01/2018 | 31/03/2020 | One Red Flag |
| HYDRA ENGINEERING SERVICES LTD | 04992012 | 25/01/2022 | 01/03/2023 | Insolvent |
| K.J.N. AUTOMATION LIMITED | 03741649 | 22/12/2021 | 01/03/2023 | Silver |
| KNOWLTON AND NEWMAN LIMITED | 04690033 | 25/01/2022 | 01/03/2023 | One Red Flag |
| MATARA UK LIMITED | 03102956 | 25/01/2022 | 01/07/2023 | Bronze |
| MATRIX TOOLING SERVICES LIMITED | 03471031 | 17/12/2021 | 01/07/2023 | One Red Flag |
| PETER CAMPBELL (SALES) LTD. | SC266540 | 17/12/2021 | 01/07/2023 | Bronze |
| RUBIX EUROPE LIMITED | 00890082 | 08/12/2021 | 31/03/2024 | Not Trading |
| RUBIX GROUP BUFFERCO LIMITED | 10919222 | 06/12/2021 | 31/03/2024 | Silver |
| RUBIX GROUP FINCO LIMITED | 10752519 | 06/12/2021 | 31/03/2024 | Bronze |
| RUBIX GROUP INTERNATIONAL LIMITED | 00162925 | 06/12/2021 | 31/03/2024 | One Red Flag |
| RUBIX GROUP MIDCO 2 LIMITED | 10485901 | 06/12/2021 | 31/03/2024 | Silver |
| RUBIX GROUP MIDCO 3 LIMITED | 10473726 | 06/12/2021 | 31/03/2024 | Silver |
| RUBIX GROUP MIDCO 4 LIMITED | 03909968 | 06/12/2021 | 31/03/2024 | Silver |
| RUBIX GROUP MIDCO LIMITED | 10485778 | 06/12/2021 | 31/03/2024 | Silver |
| RUBIX INTERNATIONAL LIMITED | 03909967 | 06/12/2021 | 31/03/2024 | Silver |
| RUBIX U.K. LIMITED | 00569290 | 17/12/2021 | 31/03/2024 | Silver |
| SLR GLOBAL LIMITED | 11182524 | 01/07/2024 | 01/07/2024 | Amber |
| TDGL 2 LIMITED | 09667937 | 25/01/2022 | 01/03/2023 | Bronze |
| THE DERITEND GROUP LIMITED | 04140677 | 25/01/2022 | 01/07/2023 | Silver |
| WEST COUNTRY TOOL COMPANY LIMITED | 01174858 | 25/01/2022 | 01/03/2023 | Bronze |