| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AMBLESIDE 1976 LIMITED | 13565968 | 13/08/2021 | One Red Flag |
| LIFESAFE HOLDINGS PLC | 09770600 | 27/01/2022 | Bronze |
| LIFESAFE TECHNOLOGIES LIMITED | 09786885 | 27/01/2022 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A1 PRESENTATIONS LIMITED | 02518569 | 31/01/2015 | 30/11/2018 | Dissolved |
| COEX LIMITED | 01911754 | 31/01/2015 | 30/11/2018 | Not Trading |
| FALCON EQUIPMENT AND SYSTEMS LIMITED | 04244450 | 31/01/2015 | 30/11/2018 | Dissolved |
| FIREANGEL SAFETY TECHNOLOGY GROUP PLC | 03991353 | 28/12/2018 | 17/12/2020 | Amber |
| FIREANGEL SAFETY TECHNOLOGY LIMITED | 03641019 | 28/12/2018 | 17/12/2020 | One Red Flag |
| FOTOVALUE LIMITED | 00530172 | 31/01/2015 | 30/11/2018 | Not Trading |
| IES INTEGRATED ELECTRONIC SYSTEMS LIMITED | 02244816 | 31/01/2015 | 30/11/2018 | Dissolved |
| INTEGRATED ENVIRONMENTAL SYSTEMS LIMITED | 02427589 | 31/01/2015 | 30/11/2018 | Dissolved |
| LOOK CCTV LIMITED | 02126939 | 31/01/2015 | 30/11/2018 | Not Trading |
| LOOK CLOSED CIRCUIT T.V LIMITED | 02473984 | 31/01/2015 | 30/11/2018 | Not Trading |
| OCULAR INTEGRATION LIMITED | 05831231 | 01/12/2015 | 30/11/2018 | Gold |
| PROTEC 2001 LIMITED | 02173302 | 31/01/2015 | 30/11/2018 | Dissolved |
| PROTEC LIMITED | 02876304 | 31/01/2015 | 30/11/2018 | Not Trading |
| QUADNETICS EMPLOYEES' TRUSTEES LIMITED | 02128906 | 10/05/2018 | 30/11/2018 | Not Trading |
| QUADNETICS GROUP LIMITED | 04283903 | 31/01/2015 | 30/11/2018 | Not Trading |
| QUADNETICS SIP TRUSTEES LIMITED | 05815275 | 10/05/2018 | 30/11/2018 | Not Trading |
| QUADRANT INTEGRATED SYSTEMS LIMITED | 02583461 | 31/01/2015 | 30/11/2018 | Dissolved |
| QUADRANT RESEARCH & DEVELOPMENT LIMITED | 02673950 | 31/01/2015 | 30/11/2018 | Not Trading |
| QUADRANT SUPPORT SERVICES LIMITED | 04329446 | 31/01/2015 | 30/11/2018 | Dissolved |
| QUADRANT VIDEO SYSTEMS LIMITED | 02127345 | 31/01/2015 | 30/11/2018 | Dissolved |
| S D A PROTEC LIMITED | 02011062 | 31/01/2015 | 30/11/2018 | Dissolved |
| SANPHO PENSION TRUSTEES LIMITED | 01530978 | 06/03/2015 | 30/11/2018 | Not Trading |
| SDA NETWORK SOLUTIONS LIMITED | 04471801 | 31/01/2015 | 30/11/2018 | Dissolved |
| SDA PROTEC (2001) LIMITED | 02787012 | 31/01/2015 | 30/11/2018 | Dissolved |
| SECTRONIC (MARKETING) LIMITED | 01364510 | 31/01/2015 | 30/11/2018 | Dissolved |
| SECURITY DESIGN ASSOCIATES (1979) LIMITED | SC069292 | 31/01/2015 | 30/11/2018 | Dissolved |
| SOFTWARE DEVELOPMENTS (DIGITAL DIRECT) LIMITED | 02616444 | 31/01/2015 | 30/11/2018 | Dissolved |
| STANMORE SYSTEMS LTD | 02144288 | 31/01/2015 | 30/11/2018 | Not Trading |
| SYNECTIC SYSTEMS GROUP LIMITED | 05815524 | 01/12/2015 | 30/11/2018 | Gold |
| SYNECTIC SYSTEMS LIMITED | 02191834 | 31/01/2015 | 30/11/2018 | Not Trading |
| SYNECTICS NO. 2 LIMITED | 07103133 | 31/01/2015 | 30/11/2018 | Not Trading |
| SYNECTICS PLC | 01740011 | 01/12/2015 | 30/11/2018 | Gold |
| SYNECTICS SECURITY NETWORKS LIMITED | 03014280 | 31/01/2015 | 30/11/2018 | Not Trading |
| SYNECTICS TECHNOLOGY CENTRE LIMITED | 02192181 | 31/01/2015 | 30/11/2018 | Not Trading |
| VISUM TECHNOLOGIES PLC | 13211334 | 02/08/2021 | 31/10/2022 | One Red Flag |