| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HUMBERSIDE RECLAMATION LIMITED | 01295452 | 01/11/2011 | Bronze |
| OAKVINE LIMITED | 09375694 | 06/01/2015 | Silver |
| PHS RS LIMITED | 07741116 | 12/02/2013 | Dissolved |
| ROBERT SANDERSON & SONS (HOLDINGS) LIMITED | 02589396 | 02/04/1991 | Silver |
| ROBERT SANDERSON & SONS LIMITED | 01124759 | 01/03/2017 | Bronze |
| Sandco 043 (Hull) Ltd | 05491705 | 14/12/2005 | Dissolved |
| WINIFRED CONSULTANCY LTD | 10474071 | 11/11/2016 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| OMEGA DESIGN AND BUILD PARTNERS NO.17 LLP | OC376737 | 09/11/2012 | 06/04/2020 | Dissolved |
| PHS RS LIMITED | 07741116 | 15/08/2011 | 15/08/2011 | Dissolved |
| ROBERT SANDERSON & SONS LIMITED | 01124759 | 19/10/1991 | 28/09/2016 | Bronze |