| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DBT INVESTMENTS LIMITED | 14113374 | 17/05/2022 | Bronze |
| INERT LANDFILL & RESTORATION MANAGEMENT LIMITED | 12457716 | 12/02/2020 | Gold |
| INERT RECYCLING (SUSSEX) LIMITED | 15405339 | 11/01/2024 | Amber |
| INERT RECYCLING (UK) LIMITED | 03754461 | 13/07/2007 | Bronze |
| INERT SURVEYING & DESIGN LIMITED | 13628900 | 17/09/2021 | Silver |
| INERT TYRE SUPPORT LIMITED | 12457586 | 12/02/2020 | Silver |
| IRUK (WASTE PLANNING & CONSULTANCY) LIMITED | 12000102 | 16/05/2019 | Gold |
| SLC GROUP HOLDINGS LIMITED | 04426208 | 31/07/2002 | Bronze |
| Specialist 3D & Media Ltd | 05467290 | 22/07/2005 | Dissolved |
| TRL PLANT LIMITED | 05439732 | 17/05/2005 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASHLEY CRESCENT PROPERTIES (SOUTHAMPTON) LIMITED | 01211194 | 15/02/2001 | 29/04/2008 | Dissolved |
| COASTAL TIPPERS LIMITED | 04188358 | 27/01/2003 | 29/04/2008 | Dissolved |
| PORTLAND REALISATIONS (TRUCKS) LIMITED | 02598570 | 11/07/1991 | 29/04/2008 | Dissolved |
| TRACKS 'N' TRUCKS (SERVICING & REPAIRS) LIMITED | 03042879 | 02/05/1995 | 29/04/2008 | Dissolved |
| TRUCKS (LANDFILL) LIMITED | 03174268 | 20/03/1996 | 29/04/2008 | Dissolved |
| TRUCKS COASTAL LIMITED | 02822188 | 21/07/1993 | 29/04/2008 | Dissolved |
| TRUCKS ROADPACE LIMITED | 05440531 | 17/05/2005 | 29/04/2008 | Dissolved |
| TRUCKS SMALL WORKS LIMITED | 02166450 | 10/07/1998 | 29/04/2008 | Dissolved |