| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HEALTH CARE NAVIGATOR LTD | 03166598 | 04/03/1996 | Dissolved |
| PRINCIPAL GROUP LIMITED | 02756357 | 10/10/1995 | Gold |
| Principal House Investments Ltd | 03629831 | 11/09/1998 | Dissolved |
| Principal Property Development Ltd | 05410313 | 01/04/2005 | Dissolved |
| SIGNATURE INVESTMENTS LIMITED | 03590156 | 14/09/1998 | Bronze |
| Yourhealth.Co.Uk Ltd | 03839834 | 01/12/1999 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| H.P. MANAGEMENT COMPANY LIMITED | 04282310 | 26/10/2010 | 22/11/2017 | Gold |
| PRINCIPAL MARKETING AND INSURANCE SERVICES LIMITED | 02756299 | 10/10/1995 | 01/01/2010 | Dissolved |
| PRINVESTUK LIMITED | 09188555 | 28/08/2014 | 25/08/2015 | Insolvent |
| RMMI CONSULTING LIMITED | 12198718 | 10/09/2019 | 17/08/2020 | Silver |