| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| PITEAU ASSOCIATES UK LIMITED | 10436917 | 24/05/2022 | Gold |
| TETRA TECH CONSULTING (NI) LIMITED | NI667243 | 24/01/2020 | Amber |
| TETRA TECH GROUP LIMITED | 06595608 | 15/01/2020 | Amber |
| TETRA TECH INTERNATIONAL DEVELOPMENT PROJECTS LIMITED | 03195423 | 03/03/2020 | Silver |
| TETRA TECH UK CONSULTING GROUP LIMITED | 01869543 | 09/07/2019 | Silver |
| TETRA TECH UK LIMITED | 12241404 | 03/10/2019 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|