| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ACKWORTH SCHOOL ESTATES LIMITED | 00411440 | 15/06/2016 | Bronze |
| NICHOLSON NURSERIES LIMITED | 04820053 | 13/01/2023 | Silver |
| Symm 2008 Ltd | 03961858 | 28/03/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AUTOCAVE LIMITED | 12081790 | 01/11/2020 | 12/07/2024 | Amber |
| AXTELL PERRY SYMM MASONRY LIMITED | 01049147 | 01/04/1997 | 09/12/2016 | Dissolved |
| BICAIR SERVICES LIMITED | 01126504 | 23/03/2010 | 09/12/2016 | Dissolved |
| HENLEYROAD LIMITED | 09990961 | 01/11/2020 | 24/05/2021 | One Red Flag |
| JARVIS GROUP LIMITED | 04153939 | 05/07/2018 | 01/01/2019 | Amber |
| K PILING LIMITED | 13576332 | 20/08/2021 | 12/07/2024 | Not Trading |
| K PLANT HIRE LIMITED | 12299594 | 27/03/2023 | 12/07/2024 | Amber |
| KNOWLES CONSTRUCTION LTD | 07398848 | 01/11/2020 | 12/07/2024 | Gold |
| KNOWLES HOLDINGS LIMITED | 12094557 | 01/11/2020 | 12/07/2024 | Gold |
| KNOWLES LAND LIMITED | 10582678 | 01/11/2020 | 12/07/2024 | One Red Flag |
| KNOWLES PROPERTY GROUP 2 LIMITED | 12891437 | 01/11/2020 | 12/07/2024 | Bronze |
| KNOWLES PROPERTY GROUP LIMITED | 12415591 | 01/11/2020 | 12/07/2024 | One Red Flag |
| KNOWLES WATERPROOFING LIMITED | 14543702 | 15/12/2022 | 12/07/2024 | Not Trading |
| LEONARD A.SHARP LIMITED | 01008167 | 23/03/2010 | 09/12/2016 | Dissolved |
| SHARP AND HOWSE LIMITED | 00494125 | 01/04/1997 | 06/12/2016 | Dissolved |
| SYMM & COMPANY LIMITED | 00258950 | 01/06/1992 | 06/12/2016 | Dissolved |
| SYMM GROUP LIMITED | 00232770 | 01/10/2008 | 12/12/2016 | Insolvent |