| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AIRCOM INTERNATIONAL LIMITED | 03052022 | 05/03/2003 | 31/05/2003 | Bronze |
| ANITE LIMITED | 01798114 | 12/09/1995 | 09/03/1998 | Silver |
| ANITE TELECOMS LIMITED | 01721900 | 28/11/1992 | 09/03/1998 | Dissolved |
| APTITUDE SOFTWARE LIMITED | 03475849 | 16/10/1998 | 27/02/2002 | Bronze |
| Autofile Ltd | 01414721 | 28/11/1992 | 09/03/1998 | Dissolved |
| Avonicom Systems Ltd | 01838230 | 28/11/1992 | 09/03/1998 | Dissolved |
| C.S.Q. (Horizon) Ltd | 01418230 | 31/01/1994 | 09/02/1995 | Dissolved |
| CSR LIMITED | 04187346 | 31/05/2001 | 31/03/2005 | Silver |
| Helix Software Consultants Ltd | 02189125 | 28/11/1992 | 31/01/1995 | Dissolved |
| IRIS GROUP LIMITED | 03193619 | 07/12/2000 | 05/07/2004 | Amber |
| IRIS HOLDINGS LIMITED | 04091087 | 20/10/2000 | 05/07/2004 | Amber |
| Lorien Two Ltd | 02503543 | 09/05/1994 | 09/02/1995 | Dissolved |
| MAVENIR UK HOLDINGS | 02722892 | 01/02/1994 | 28/06/1996 | Silver |
| Marcol Computer Systems Ltd | 01941567 | 28/11/1992 | 14/06/1994 | Dissolved |
| Odyssey Market Data Systems Ltd | 02066671 | 10/12/1999 | 19/06/2000 | Dissolved |
| QUALCOMM TECHNOLOGIES INTERNATIONAL, LTD. | 03665875 | 27/04/1999 | 31/03/2005 | Silver |
| S A M Systems Services Ltd | 01174877 | 29/07/1994 | 09/03/1998 | Dissolved |