| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ACRON LIMITED | 02587656 | 29/02/2016 | Dissolved |
| ADVANCED WATER TECHNOLOGIES LIMITED | 04344970 | 29/10/2024 | Silver |
| APC COMPLIANCE LIMITED | 05392042 | 26/09/2024 | Silver |
| BROADCAST INVESTMENTS LIMITED | 03328124 | 29/02/2016 | Dissolved |
| CANYON WATER SERVICES LIMITED | SC420365 | 01/08/2022 | Dissolved |
| CEL ELECTRONICS LIMITED | 01342394 | 29/02/2016 | Dissolved |
| CHEMICAL TREATMENT SERVICES (IRELAND) LIMITED | NI017799 | 14/09/2023 | Silver |
| CROSMILL HOLDINGS LTD | 03787955 | 12/11/2024 | Silver |
| CROSMILL LIMITED | 01607965 | 12/11/2024 | Bronze |
| DMA CANYON LTD | SC197200 | 01/08/2022 | Gold |
| ELECTROCRAFT LABORATORIES LTD | 00656632 | 29/02/2016 | Dissolved |
| HOUSEMAN ENVIRONMENTAL LIMITED | 08774566 | 26/09/2024 | Gold |
| HSL COMPLIANCE GROUP LIMITED | 11738872 | 28/03/2019 | Silver |
| JORDAN ENVIRONMENTAL LIMITED | 03482967 | 30/09/2022 | Gold |
| MICRO CONSULTANTS LIMITED | 00908550 | 29/02/2016 | Dissolved |
| NATIONAL HYGIENE SERVICES LIMITED | 09848539 | 06/06/2024 | One Red Flag |
| PLEXUS INNOVATION LIMITED | 11105009 | 09/01/2024 | One Red Flag |
| POST IMPRESSIONS (SYSTEMS) LIMITED | 03489629 | 29/02/2016 | Dissolved |
| PRO-BEL DEVELOPMENTS LIMITED | 01895288 | 29/02/2016 | Dissolved |
| R J URMSON COMMISSIONING ENGINEERS LIMITED | 05351065 | 06/06/2024 | Silver |
| R J URMSON GROUP LIMITED | 12837834 | 06/06/2024 | One Red Flag |
| SNELL & WILCOX TRUSTEE LIMITED | 03807935 | 29/02/2016 | Dissolved |
| URMSON FIRE SPECIALISTS LIMITED | 11438396 | 06/06/2024 | Silver |
| VISTEK ELECTRONICS LIMITED | 03561900 | 29/02/2016 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| GRASS VALLEY LIMITED | 01160119 | 29/02/2016 | 24/01/2019 | One Red Flag |
| PRO-BEL GROUP LIMITED | 01316843 | 29/02/2016 | 24/01/2019 | Not Trading |
| PRO-BEL HOLDINGS LIMITED | 04808255 | 29/02/2016 | 24/01/2019 | Not Trading |
| PRO-BEL LIMITED | 03487653 | 29/02/2016 | 24/01/2019 | Bronze |
| PSP DIGITAL LIMITED | 03156669 | 29/02/2016 | 24/01/2019 | Dissolved |
| QUANTEL EUROPE LIMITED | 03307773 | 29/02/2016 | 24/01/2019 | Amber |
| QUANTEL GROUP LIMITED | 01666566 | 29/02/2016 | 24/01/2019 | One Red Flag |
| QUANTEL HOLDINGS (2010) LIMITED | 04004913 | 29/02/2016 | 24/01/2019 | One Red Flag |
| QUANTEL LIMITED | 01130271 | 29/02/2016 | 24/01/2019 | Bronze |
| SNELL CORPORATION LIMITED | 06592512 | 29/02/2016 | 24/01/2019 | One Red Flag |
| STEWART BIDCO LIMITED | 07642304 | 01/06/2012 | 26/02/2016 | Dissolved |
| STEWART GROUP EMB LTD | 07642089 | 06/02/2014 | 26/02/2016 | Dissolved |
| STEWART GROUP HOLDINGS LIMITED | 06569475 | 01/06/2012 | 26/02/2016 | Dissolved |
| STEWART MIDCO LIMITED | 07642161 | 01/06/2012 | 26/02/2016 | Dissolved |
| STEWART PLASTICS LIMITED | 00399253 | 01/06/2012 | 26/02/2016 | Dissolved |
| WOODBURY RESIDUAL LIMITED | 07472957 | 26/02/2019 | 25/02/2021 | Dissolved |