| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A C S ANALYSIS LIMITED | 03889779 | 23/08/2021 | Not Trading |
| ACS ENVIRONMENTAL TESTING LIMITED | 06000065 | 23/08/2021 | Bronze |
| ACS GROUP OF COMPANIES LIMITED | 09417819 | 23/08/2021 | Not Trading |
| ACS TESTING LIMITED | 04639658 | 23/08/2021 | Gold |
| CAIMAN BIDCO LIMITED | 13048157 | 23/08/2021 | Bronze |
| CELTEST COMPANY LIMITED | 01533370 | 29/04/2022 | Bronze |
| CMTL (JF) LIMITED | 01182561 | 01/11/2021 | Silver |
| CMTL LIMITED | 07495433 | 23/08/2021 | One Red Flag |
| ECOLOGY SOLUTIONS GROUP LIMITED | 10069594 | 22/11/2022 | Silver |
| ECOLOGY SOLUTIONS HOLDINGS LIMITED | 12505483 | 22/11/2022 | One Red Flag |
| ECOLOGY SOLUTIONS LIMITED | 05276191 | 22/11/2022 | Silver |
| GEO SITE AND TESTING SERVICES LIMITED | 07747010 | 23/08/2021 | Silver |
| JAG BIDCO LIMITED | 12243387 | 23/08/2021 | Bronze |
| JAG TOPCO LIMITED | 12241623 | 23/08/2021 | Silver |
| LAB PARTNERSHIP LIMITED | 10614748 | 23/08/2021 | One Red Flag |
| MATTEST BIDCO LIMITED | 13138794 | 23/08/2021 | Amber |
| PROFESSIONAL SOILS LABORATORY LIMITED | 05141546 | 23/08/2021 | Gold |
| PROJECT BAKELITE BIDCO LIMITED | 14293675 | 12/08/2022 | Bronze |
| PROJECT BAKELITE TOPCO LIMITED | 14292286 | 12/08/2022 | Gold |
| PROJECT HENLEY BIDCO LIMITED | 14216674 | 08/08/2022 | Bronze |
| PROJECT HENLEY TOPCO LIMITED | 14214331 | 08/08/2022 | Silver |
| PROJECT INFOSEC BIDCO LIMITED | 14453042 | 31/10/2022 | Dissolved |
| PROJECT INFOSEC TOPCO LIMITED | 14450156 | 28/10/2022 | Dissolved |
| PSL BIDCO LIMITED | 11961306 | 23/08/2021 | Bronze |
| PSL TOPCO LIMITED | 11961242 | 23/08/2021 | Silver |
| RAMMSANDERSON ECOLOGY LIMITED | 08999992 | 31/01/2023 | Amber |
| RAMMSANDERSON TRAINING LTD | 12217591 | 31/01/2023 | One Red Flag |
| SIMTEC MATERIALS CONSULTANTS LTD | 10669435 | 20/09/2022 | Bronze |
| SIMTEC MATERIALS TESTING LTD | 06401491 | 20/09/2022 | Silver |
| THE RAMMSANDERSON GROUP LTD | 12217478 | 31/01/2023 | Bronze |
| XAIS ASSET MANAGEMENT LIMITED | 09537184 | 08/08/2022 | Gold |
| XAIS-PTS LIMITED | 04374737 | 01/04/2022 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACCUSENSE SYSTEMS LIMITED | 03709547 | 02/12/2015 | 17/10/2017 | Not Trading |
| AEROTECH INSPECTION & NDT LIMITED | 05225701 | 04/12/2019 | 18/08/2020 | Not Trading |
| ELEMENT MATERIALS TECHNOLOGY AEROSPACE UK LIMITED | 11371687 | 12/02/2019 | 18/08/2020 | Silver |
| ELEMENT MATERIALS TECHNOLOGY SHEFFIELD LTD | 00076383 | 12/02/2019 | 18/08/2020 | One Red Flag |
| WESTERN TECHNICAL SERVICES LIMITED | 05451439 | 02/12/2015 | 17/10/2017 | Not Trading |