| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A.J. BAYLISS PETROLEUM ENGINEERS LTD | 04011841 | 04/01/2022 | Silver |
| ADLER & ALLAN EBT TRUSTEE LIMITED | 12348306 | 04/01/2022 | Amber |
| ADLER & ALLAN GROUP LIMITED | 09091944 | 04/01/2022 | One Red Flag |
| ADLER & ALLAN HOLDINGS LIMITED | 06216905 | 04/01/2022 | One Red Flag |
| ADLER & ALLAN LIMITED | 00318460 | 04/01/2022 | Bronze |
| ALKER HOLDINGS LIMITED | 11289727 | 04/01/2022 | Silver |
| AMGS ELECTRICAL LIMITED | 05915659 | 04/01/2022 | Silver |
| AQUA CONSULTANTS LIMITED | 06480615 | 31/01/2023 | Bronze |
| AQUEOUS 1ST KWIKFLOW LIMITED | 03639303 | 04/01/2022 | Silver |
| CHESHIRE BIDCO LTD | 15682273 | 16/08/2024 | Amber |
| CHESHIRE HOLDCO LTD | 15682194 | 16/08/2024 | Amber |
| CHESHIRE MIDCO LTD | 15682246 | 16/08/2024 | Amber |
| CHESHIRE TOPCO LTD | FC041780 | 16/08/2024 | Amber |
| DETECTRONIC HOLDINGS LIMITED | 12024204 | 31/03/2023 | Silver |
| DETECTRONIC LIMITED | 06419526 | 31/03/2023 | Silver |
| E & S ENVIRONMENTAL SERVICES LIMITED | 05288826 | 04/01/2022 | Silver |
| E & S HOLDINGS LIMITED | 05284920 | 04/01/2022 | Not Trading |
| FLOTECH PERFORMANCE SYSTEMS LTD | 07749953 | 04/01/2022 | Bronze |
| JET AIRE (DC) LIMITED | 03466126 | 04/01/2022 | Bronze |
| MEL (HOLDINGS) LIMITED | 07549964 | 29/10/2024 | Silver |
| MEL ENVIRONMENTAL SOLUTIONS LIMITED | 07649129 | 29/10/2024 | Silver |
| OHES ENVIRONMENTAL LIMITED | 04320201 | 04/01/2022 | Silver |
| ONELINE SURVEYS LTD. | 06122201 | 04/01/2022 | Silver |
| PSS UTILITIES LIMITED | 16066954 | 07/11/2024 | Amber |
| PUBLIC SEWER SERVICES LIMITED | 04977957 | 02/02/2024 | Gold |
| PUBLIC WATER SERVICES LIMITED | 12481890 | 02/02/2024 | Not Trading |
| QEM SERVICES LIMITED | SC764433 | 29/02/2024 | Bronze |
| QEMS LIMITED | SC241801 | 29/02/2024 | Gold |
| TET BIDCO LIMITED | 12997859 | 17/01/2022 | One Red Flag |
| TET MIDCO LIMITED | 12997852 | 17/01/2022 | Bronze |
| UTILITY LINE LTD | 13457809 | 28/03/2024 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| GK APPRENTICESHIPS LIMITED | 05396270 | 03/02/2014 | 16/03/2020 | One Red Flag |
| GLOBAL KNOWLEDGE NETWORK TRAINING LIMITED | 05462286 | 08/05/2006 | 16/03/2020 | Bronze |