| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AIRWAVE SOLUTIONS LIMITED | 03985643 | 18/09/2001 | 31/10/2006 | One Red Flag |
| Bt Wireless Investments Ltd | 03811224 | 03/05/2001 | 08/05/2002 | Dissolved |
| CALL CONNECTIONS LIMITED | 02712995 | 04/05/2001 | 31/10/2006 | Dissolved |
| MMO2 LIMITED | 04190833 | 31/08/2001 | 31/10/2006 | Not Trading |
| NEW CELLULAR HOLDINGS LIMITED | 03801456 | 10/11/1999 | 03/05/2000 | Dissolved |
| O2 CEDAR LIMITED | 04678681 | 26/02/2003 | 31/10/2006 | Gold |
| O2 HOLDINGS LIMITED | 02604354 | 30/03/2001 | 31/10/2006 | Bronze |
| O2 MOBILES LIMITED | 02604355 | 04/05/2001 | 31/10/2006 | Dissolved |
| O2 NETWORKS LIMITED | 02604351 | 04/05/2001 | 31/10/2006 | Gold |
| O2 SOLUTIONS LIMITED | 01814089 | 04/05/2001 | 31/10/2006 | Dissolved |
| O2 THIRD GENERATION | 03900219 | 05/01/2000 | 31/10/2006 | Dissolved |
| O2 TRANSACTIONS LIMITED | 02713001 | 04/05/2001 | 31/10/2006 | Dissolved |
| PACIFIC SHELF 873 LIMITED | SC198346 | 04/05/2001 | 31/10/2006 | Dissolved |
| TELEFONICA O2 HOLDINGS LIMITED | 05310128 | 05/01/2005 | 31/10/2006 | Silver |
| TELEFONICA UK LIMITED | 01743099 | 19/11/2001 | 31/10/2006 | Gold |
| TELEFONICA UK PENSION TRUSTEE LIMITED | 04267552 | 07/06/2002 | 31/10/2006 | Not Trading |