| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Environmental Investments Llp | OC313157 | 05/07/2005 | Dissolved |
| Environmental Project Management Ltd | 02737590 | 31/01/1999 | Dissolved |
| Porterswood Ltd | 02834668 | 31/03/1999 | Dissolved |
| Stats Geotechnical Ltd | 02793158 | 31/03/1999 | Dissolved |
| Stats Q A Ltd | 02198392 | 31/03/1999 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ENTRAINMENT LIMITED | 06245436 | 20/12/2017 | 28/02/2022 | Amber |
| RSK ENVIRONMENT LIMITED | SC115530 | 01/04/2012 | 28/02/2022 | Silver |
| RSK STATS LIMITED | 02833839 | 31/03/1999 | 24/01/2008 | Dissolved |
| RSK STATS LIMITED | 02833839 | 01/03/1996 | 21/05/2021 | Dissolved |
| STATS PROJECTS LIMITED | 03751533 | 14/04/2000 | 13/11/2001 | Dissolved |
| UP AND UNDER (SPECIALIST CONTRACTS) LIMITED | 03588412 | 20/12/2017 | 28/02/2022 | Amber |
| UP AND UNDER GROUP LIMITED | 05435793 | 20/12/2017 | 28/02/2022 | One Red Flag |
| UP AND UNDER LIMITED | 02434409 | 20/12/2017 | 28/02/2022 | Bronze |