| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ADVANCED MAINTENANCE SUPPORT LLP | OC441751 | 31/03/2022 | Bronze |
| AMBIENT AIR CONDITIONING LIMITED | 05070707 | 22/08/2022 | Silver |
| Advanced Building Solutions Ltd | 03971185 | 26/11/2001 | Dissolved |
| CITYSERVE HOLDINGS LIMITED | 13664617 | 06/10/2021 | Silver |
| CITYSERVE PROJECTS LIMITED | 13848474 | 14/01/2022 | Not Trading |
| Discovery Marine Ltd | 04355582 | 18/01/2002 | Dissolved |
| EXCOOL NORTH AMERICA LIMITED | 10893215 | 01/08/2017 | Not Trading |
| EXCOOL PACIFIC LIMITED | 15059565 | 09/08/2023 | Not Trading |
| GREENBOX GBX HOLDINGS LIMITED | 07552587 | 30/11/2018 | Dissolved |
| GREENBOX OEM LIMITED | 09300186 | 30/11/2018 | Dissolved |
| I.P.T. HOLDINGS LIMITED | 13319455 | 23/11/2023 | Bronze |
| I.P.T. TECHNOLOGY SUPPORT LLP | OC436758 | 08/04/2021 | Bronze |
| Lamont Group Ltd | 02441272 | 08/11/1991 | Dissolved |
| MERCURY CLIMATIC LIMITED | 02115834 | 13/01/1992 | Dissolved |
| MERCURY CS LLP | OC411608 | 01/05/2016 | One Red Flag |
| MERCURY CSC LIMITED | 10185805 | 18/05/2016 | One Red Flag |
| MERCURY PACKAGED WATER CHILLERS LIMITED | 04355459 | 17/01/2002 | Dissolved |
| Mercury Air Products Ltd | 02156824 | 17/05/1991 | Dissolved |
| Mercury E.S. Ltd | 04130257 | 01/04/2004 | Dissolved |
| Panel & Paint (Milton Keynes) Ltd | 04841771 | 22/07/2003 | Dissolved |
| Panel & Paint (Milton Keynes) Ltd | 04841771 | 22/07/2003 | Dissolved |
| Print & Sign Solutions Ltd | 05755838 | 24/03/2006 | Dissolved |
| SHEPLEY MEADOW LTD | 11855729 | 01/03/2019 | Not Trading |
| ZEOINTEL LIMITED | 12809934 | 13/08/2020 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADVANCED POOLS SERVICE LIMITED | 04211911 | 10/05/2006 | 08/08/2007 | Silver |
| Cosmedica Centres Ltd | 05621827 | 14/11/2005 | 01/11/2006 | Dissolved |
| IMAGE INSTALLATIONS AND MAINTENANCE LLP | OC342100 | 16/12/2008 | 31/08/2010 | Dissolved |
| IMAGE TECHNIQUE LIMITED | 03300167 | 01/07/2001 | 13/09/2010 | Bronze |
| LAMONT ENVIRONMENTAL PROJECTS LIMITED | 02376625 | 01/05/1992 | 01/01/2001 | One Red Flag |
| LAMONT ENVIRONMENTAL PROJECTS LIMITED | 02376625 | 01/09/1992 | 01/01/2001 | One Red Flag |
| MERCURY SERVICES MANAGEMENT LIMITED | 04342286 | 28/08/2007 | 16/09/2012 | Dissolved |
| MERCURY SERVICES MANAGEMENT LIMITED | 04342286 | 18/12/2001 | 01/01/2005 | Dissolved |
| Mercury Air Products Ltd | 02156824 | 17/05/1991 | 01/01/2001 | Dissolved |
| Mercury Environmental Systems Ltd | 02984979 | 01/04/2004 | 19/10/2004 | Dissolved |
| PANEL & PAINT (MK) HOLDINGS LIMITED | 07779477 | 19/09/2011 | 19/09/2011 | Dissolved |
| PANEL & PAINT (MK) LIMITED | 02767721 | 06/05/2005 | 23/09/2011 | Dissolved |