| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARENA FIRE SYSTEMS LTD | 04511130 | 27/08/2024 | Silver |
| ASPRO (UK) LIMITED | 03484808 | 31/07/2019 | Dissolved |
| EAST LANCASHIRE REFRIGERATION LIMITED | 01605243 | 17/05/2019 | Dissolved |
| ELRAC LIMITED | 05832640 | 17/05/2019 | Strike Off |
| FIRE PROTECTION (SCOTLAND) LIMITED | SC173877 | 20/09/2024 | Dissolved |
| FIRE PROTECTION GROUP (FPG) LIMITED | SC115888 | 20/09/2024 | Dissolved |
| FPG SECURITY SOLUTIONS LIMITED | SC272727 | 20/09/2024 | Dissolved |
| MCELWAINE SECURITY SERVICES LIMITED | NI606702 | 08/11/2024 | Gold |
| RICHARD H JONES CONSULTANTS LTD | 15523012 | 26/02/2024 | Bronze |
| SCUTUM DIGITAL LTD | 03250801 | 27/08/2024 | Silver |
| SCUTUM LIFECYCLE LIMITED | 15823679 | 27/08/2024 | Dissolved |
| SCUTUM LONDON LIMITED | 04093143 | 27/08/2024 | Bronze |
| SCUTUM NORTH LIMITED | 04989759 | 27/08/2024 | Silver |
| SCUTUM SOUTH EAST LIMITED | 01218831 | 27/08/2024 | Silver |
| SCUTUM SOUTH WEST LIMITED | 03512239 | 27/08/2024 | Bronze |
| SCUTUM UK & IRELAND LTD | 11647001 | 27/08/2024 | Amber |
| SCUTUM UK LIMITED | SC315671 | 27/08/2024 | Amber |
| SCUTUM WEST LIMITED | 03287775 | 27/08/2024 | Bronze |
| TYCO FIRE & INTEGRATED SOLUTIONS (UK) LIMITED | 01952517 | 06/08/2018 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADT FIRE AND SECURITY PLC | 01161045 | 06/08/2018 | 31/12/2023 | Silver |
| APEX COMMERCIAL REFRIGERATION AND AIR CONDITIONING LTD | 02044550 | 08/12/2006 | 13/12/2007 | Dissolved |
| ASPRO CREST LIMITED | 04447075 | 31/07/2019 | 31/12/2023 | Bronze |
| ASSET PLUS ENERGY PERFORMANCE LTD | 07320317 | 03/05/2022 | 01/10/2022 | Bronze |
| CARRIER CONTROLS LIMITED | 05392324 | 22/11/2013 | 20/11/2017 | Bronze |
| CARRIER HOLDINGS LIMITED | 01832785 | 22/11/2013 | 27/01/2017 | Dissolved |
| CARRIER PENSION TRUSTEE LIMITED | 02879330 | 10/09/2014 | 31/10/2017 | Not Trading |
| CARRIER RENTAL SYSTEMS (UK) LIMITED | SC028224 | 16/01/2007 | 31/10/2017 | Silver |
| CARRIER RENTAL SYSTEMS LIMITED | 03807755 | 16/01/2007 | 31/10/2017 | Strike Off |
| CARRIER SOLUTIONS UK LTD. | 03723803 | 22/11/2013 | 31/10/2017 | Silver |
| CARRIER TRANSCONTINENTAL COMPANY LIMITED | 00622792 | 22/11/2013 | 28/07/2016 | Dissolved |
| CHILLER RENTAL SERVICES LIMITED | 03034767 | 16/01/2007 | 22/02/2013 | Dissolved |
| CIAT OZONAIR LTD | 01358498 | 03/04/2015 | 31/10/2017 | Dissolved |
| CLAUDIUS LIMITED | 04903627 | 16/01/2007 | 30/01/2013 | Dissolved |
| CO2OLTEC COMMERCIAL REFRIGERATION UK LIMITED | 00943308 | 08/12/2004 | 28/02/2006 | Amber |
| DMS CONTROLS LIMITED | 03752349 | 22/11/2013 | 03/11/2014 | Dissolved |
| DMS ENERGY SERVICES LIMITED | 04934986 | 22/11/2013 | 03/11/2014 | Dissolved |
| ELECTRONIC SECURITY SYSTEMS AND FIRE PROTECTION LTD. | SC098228 | 02/10/2018 | 31/12/2023 | Dissolved |
| ENGINEERED SOLUTIONS LIMITED | 03004623 | 22/11/2013 | 25/06/2015 | Dissolved |
| ENVISION INTELLIGENT SOLUTIONS LIMITED | NI602735 | 24/02/2022 | 31/12/2023 | One Red Flag |
| ESOTEC LTD. | 10074925 | 02/03/2021 | 31/12/2023 | Silver |
| FISHER GROUP HOLDINGS LIMITED | SC345596 | 30/07/2021 | 01/10/2022 | Dissolved |
| FISHER GROUP LIMITED | SC055146 | 30/07/2021 | 01/10/2022 | Dissolved |
| FISHER GROUP SERVICE LIMITED | SC129109 | 30/07/2021 | 01/10/2022 | Dissolved |
| FORAY 414 LIMITED | 02704815 | 22/11/2013 | 20/10/2017 | Amber |
| GEM SECURITY SERVICES LIMITED | 02464502 | 18/11/2022 | 31/12/2023 | One Red Flag |
| H & C CONTRACTS LIMITED | 02201497 | 12/12/2019 | 01/10/2022 | Strike Off |
| HOLLAND HEATING UK LIMITED | 02518876 | 10/10/2005 | 30/11/2007 | Dissolved |
| INGLEBY (1232) LIMITED | 03831016 | 16/01/2007 | 25/06/2015 | Dissolved |
| INSIGHT CERTIFICATION LIMITED | 02525516 | 23/09/2020 | 21/12/2023 | Gold |
| JOHNSON CONTROLS BUILDING EFFICIENCY UK LIMITED | 08993483 | 06/08/2018 | 01/10/2022 | Bronze |
| MCDOWALL AIR CONDITIONING (U.K.) LIMITED | 01984288 | 31/03/2020 | 01/10/2022 | Dissolved |
| MCDOWALL HOLDINGS LIMITED | 08292959 | 31/03/2020 | 01/10/2022 | N/A |
| MCDOWALL LIMITED | 01089423 | 31/03/2020 | 01/10/2022 | Dissolved |
| NEW TECH SECURITY LIMITED | 03381849 | 31/10/2019 | 31/12/2023 | One Red Flag |
| NT SECURITY LIMITED | 06143252 | 31/10/2019 | 31/12/2023 | Dissolved |
| OPTIMUM MAINTENANCE SYSTEMS LIMITED | 01612480 | 22/11/2013 | 03/11/2014 | Dissolved |
| POWERTEC PUMPS LIMITED | 05208490 | 12/04/2022 | 01/10/2022 | Silver |
| RTLS COMMUNICATIONS LIMITED | 09272544 | 02/12/2022 | 31/12/2023 | Silver |
| SLD GENLITE LIMITED | SC045629 | 16/01/2007 | 22/02/2013 | Dissolved |
| SLD PUMPS LIMITED | 03991063 | 16/01/2007 | 03/11/2014 | Dissolved |
| TYCO FIRE & INTEGRATED SOLUTIONS (UK) LIMITED | 01952517 | 06/08/2018 | 31/12/2023 | Silver |
| VINDEX SYSTEMS LIMITED | 04453714 | 19/08/2022 | 31/12/2023 | One Red Flag |
| WATKINS HIRE LIMITED | 03599314 | 15/11/2016 | 31/10/2017 | Dissolved |
| WHL 2013 HOLDINGS LIMITED | 08758468 | 15/11/2016 | 31/10/2017 | Dissolved |
| WHL 2013 LIMITED | 08764183 | 15/11/2016 | 31/10/2017 | Dissolved |
| WOT SECURITY LIMITED | 01768062 | 06/12/2019 | 31/12/2023 | Dissolved |
| XCELL MISTING LIMITED | 07309995 | 31/03/2022 | 01/10/2022 | Bronze |