| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ACME CONTROLS LIMITED | 03326080 | 02/12/2011 | Dissolved |
| ACME GROUP SERVICES LIMITED | 06548804 | 02/12/2011 | Dissolved |
| ACME TECHNICAL SERVICES (SW) LIMITED | 06548793 | 02/12/2011 | Dissolved |
| B.E.S. CONSULTING HOLDINGS LIMITED | 05509155 | 01/07/2008 | Dissolved |
| Bes Consulting (Newco) Ltd | 06555792 | 04/04/2008 | Dissolved |
| Bes Property Compliance Ltd | 06623880 | 20/06/2008 | Dissolved |
| CEZANNE HR (HOLDING) LIMITED | 08314700 | 21/03/2023 | One Red Flag |
| DWEC EUROPE LTD | 04353444 | 04/08/2010 | Dissolved |
| DWEC LIMITED | 03283962 | 04/08/2010 | Dissolved |
| HAMSARD 3766 LIMITED | 15576398 | 19/10/2024 | Amber |
| IFK VENTURES LIMITED | 09482496 | 10/03/2015 | Dissolved |
| MATRIX ENERGY SOLUTIONS LIMITED | 05064049 | 10/03/2010 | Dissolved |
| Mytelbill Ltd | 06782062 | 05/01/2009 | Dissolved |
| XIRTAM (UK) LIMITED | 05574361 | 10/03/2010 | Dissolved |
| XIRTAM GROUP LIMITED | 06965718 | 10/03/2010 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACME GROUP LIMITED | 03292927 | 30/11/2011 | 25/05/2015 | Dissolved |
| ACME TECHNICAL SERVICES LIMITED | 02674048 | 30/11/2011 | 25/05/2015 | Dissolved |
| AXLE TOPCO LIMITED | 10223517 | 03/08/2016 | 21/01/2019 | Bronze |
| D55 HOLDINGS LIMITED | 13658091 | 10/10/2023 | 21/06/2024 | Gold |
| DAISY COMMUNICATIONS LTD. | 04145329 | 26/06/2008 | 08/04/2009 | Silver |
| E.ON CONTROL SOLUTIONS LIMITED | 04681451 | 10/03/2010 | 25/05/2015 | Bronze |
| F H BROWN OFFICE TECHNOLOGIES LIMITED | 04004516 | 07/07/2000 | 12/12/2007 | Dissolved |
| FFFW LIMITED | 03422181 | 01/07/2008 | 03/07/2009 | Dissolved |
| GREEN SKY ENERGY LIMITED | 07023717 | 18/09/2009 | 30/06/2015 | One Red Flag |
| METEO HOLDCO LIMITED | 13515672 | 16/07/2021 | 03/01/2023 | Bronze |
| MITREFINCH HOLDINGS LIMITED | 10389350 | 20/10/2016 | 15/10/2020 | Bronze |
| PROJECT MERCURY BIDCO LIMITED | 13299218 | 31/03/2021 | 31/03/2023 | Amber |
| PROJECT MERCURY TOPCO LIMITED | 13295767 | 31/03/2021 | 31/03/2023 | Gold |
| SO PURPLE GROUP LIMITED | 08187142 | 23/12/2014 | 27/01/2016 | One Red Flag |
| UTILIGROUP ACQUISITIONS LIMITED | 09008074 | 20/06/2014 | 13/04/2017 | Silver |
| UTILIGROUP LIMITED | 09007042 | 20/06/2014 | 13/04/2017 | Gold |