| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| FORTRESS AVAILABILITY SERVICES LIMITED | 10208176 | 29/05/2018 | Bronze |
| Guardian It Group Ltd | 03316994 | 18/07/2002 | Dissolved |
| INTOWARE LTD | 09648206 | 18/10/2019 | One Red Flag |
| Kingswell Computer Co Ltd | 03242189 | 18/07/2002 | Dissolved |
| Safeguard I T Ltd | 03592098 | 18/07/2002 | Dissolved |
| Safetynet Trading Places Ltd | 02703958 | 18/07/2002 | Dissolved |
| Systems on Site Ltd | 01849019 | 18/07/2002 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 2E2 STORAGE LIMITED | 02686986 | 18/07/2002 | 06/01/2006 | Dissolved |
| CASTELLAN SOLUTIONS LIMITED | 03892954 | 22/06/2018 | 31/12/2018 | Silver |
| COMPUTER STAND-BY LIMITED | 01792949 | 18/07/2002 | 25/09/2017 | Dissolved |
| GUARDIAN DR (OVERSEAS HOLDINGS) LIMITED | 03312020 | 18/07/2002 | 25/09/2017 | Insolvent |
| GUARDIAN IT | 03487754 | 02/07/2002 | 25/09/2017 | Amber |
| INTOWORK SOFTWARE LIMITED | 12604142 | 15/10/2020 | 26/03/2024 | One Red Flag |
| IXGUARDIAN LIMITED | 03937781 | 18/07/2002 | 25/09/2017 | Dissolved |
| SAFETYNET GROUP | 03698427 | 18/07/2002 | 25/09/2017 | Dissolved |
| SAFETYNET INTERNATIONAL LIMITED | 02100355 | 18/07/2002 | 25/09/2017 | Dissolved |
| SAFETYNET LIMITED | 01934269 | 18/07/2002 | 25/09/2017 | Dissolved |
| STROHL SYSTEMS (UK) LIMITED | 03990945 | 02/03/2009 | 25/09/2017 | Dissolved |
| SUNGARD AVAILABILITY SERVICES (DR) LIMITED | 02993186 | 18/07/2002 | 25/09/2017 | Dissolved |
| SUNGARD AVAILABILITY SERVICES (UK) LIMITED | 02368123 | 15/12/1994 | 25/09/2017 | Insolvent |
| SUNGARD AVAILABILITY SERVICES HOLDINGS (UK), LTD. | 09829186 | 19/10/2015 | 25/09/2017 | Not Trading |
| TELEVAULT IT LIMITED | 03932337 | 18/07/2002 | 25/09/2017 | Dissolved |