| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| TRAC NEWCO LIMITED | 03108462 | 22/01/2009 | Dissolved |
| TRL COMPLIANCE SERVICES LIMITED | 02731233 | 11/10/2004 | Dissolved |
| Trl Emc Ltd | 03968941 | 08/05/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AEROTECH INSPECTION & NDT LIMITED | 05225701 | 28/10/2020 | 10/10/2023 | Not Trading |
| ELEMENT MATERIALS TECHNOLOGY ABERDEEN LTD | 03399370 | 10/03/2022 | 10/10/2023 | Silver |
| ELEMENT MATERIALS TECHNOLOGY AEROSPACE UK LIMITED | 11371687 | 28/10/2020 | 10/10/2023 | Silver |
| ELEMENT MATERIALS TECHNOLOGY HITCHIN LIMITED | 08149114 | 10/03/2022 | 10/10/2023 | One Red Flag |
| ELEMENT MATERIALS TECHNOLOGY OIL & GAS UK LIMITED | 11371449 | 10/03/2022 | 10/10/2023 | Bronze |
| ELEMENT MATERIALS TECHNOLOGY SHEFFIELD LTD | 00076383 | 28/10/2020 | 10/10/2023 | One Red Flag |
| ELEMENT MATERIALS TECHNOLOGY WARWICK LTD | 02536659 | 10/01/2011 | 10/10/2023 | Silver |
| N.D.T. (HOLDINGS) LIMITED | 09101923 | 28/10/2020 | 10/10/2023 | Not Trading |
| N.D.T. LIMITED | 01992209 | 28/10/2020 | 10/10/2023 | Not Trading |
| TRAC EMC & SAFETY LIMITED | 05566063 | 01/11/2005 | 19/12/2019 | Not Trading |
| TRAC ENVIRONMENTAL AND ANALYSIS LTD | 09442637 | 17/02/2015 | 19/12/2019 | Not Trading |
| TRL COMPLIANCE SERVICES LIMITED | 02731233 | 30/07/1996 | 12/07/2004 | Dissolved |