| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Compass Minerals (No. 1) Ltd | 00369718 | 19/02/1999 | Dissolved |
| J.T. Lunt & Co. (Nantwich) Ltd | 03131452 | 19/02/1999 | Dissolved |
| Levetas Trustee Ltd | 04614861 | 12/01/2007 | Dissolved |
| Springmede Ltd | 04021538 | 12/01/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| COMPASS MINERALS (EUROPE) LIMITED | 03107016 | 12/12/1995 | 29/07/2016 | Gold |
| COMPASS MINERALS STORAGE & ARCHIVES LIMITED | 01588213 | 24/03/1999 | 29/07/2016 | Silver |
| COMPASS MINERALS UK HOLDINGS LIMITED | 02654680 | 21/09/1994 | 29/07/2016 | Gold |
| COMPASS MINERALS UK LIMITED | 02654529 | 21/09/1994 | 29/07/2016 | Silver |
| DEEPSTORE HOLDINGS LIMITED | 06776508 | 18/12/2008 | 29/07/2016 | Bronze |
| DEEPSTORE LIMITED | 02672031 | 12/01/2007 | 29/07/2016 | Silver |
| MINOSUS LIMITED | 03473042 | 08/01/1998 | 15/11/2006 | Not Trading |
| SALT UNION LIMITED | 04021852 | 12/01/2007 | 29/07/2016 | Amber |