| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Cambridge Quantum Fund Ltd | 02956017 | 10/08/1994 | Dissolved |
| GRAFTON HOUSE LIMITED | 15775870 | 13/06/2024 | Amber |
| Hytec Computer Systems Ltd | 02375441 | 25/03/2003 | Dissolved |
| Hytec Ltd | 02672529 | 19/02/2003 | Dissolved |
| Hytec Ltd | 02672529 | 25/03/1992 | Dissolved |
| ODYSSEY VENTURES LIMITED | 02342243 | 31/12/1991 | Gold |
| Pistachio Publishing Ltd | 05719609 | 23/02/2006 | Dissolved |
| THE CHALLENGE FUND TRADING COMPANY LIMITED | 03878072 | 03/11/2005 | Dissolved |
| The Original Fund Ltd | 02510968 | 01/02/1993 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALL FILL INTERNATIONAL LIMITED | 02855635 | 16/03/1994 | 28/07/1999 | Bronze |
| ALL FILL INTERNATIONAL LIMITED | 02855635 | 24/11/1993 | 28/07/1999 | Bronze |
| ALL FILL LIMITED | 01831190 | 16/03/1994 | 28/07/1999 | Not Trading |
| ALL FILL LIMITED | 01831190 | 16/03/1994 | 28/07/1999 | Not Trading |
| CREATURE LABS LTD. | 02408478 | 11/05/1994 | 19/06/2000 | Insolvent |
| EPISTROPHE LIMITED | 04358049 | 20/05/2008 | 19/11/2009 | Dissolved |
| EPISTROPHE LIMITED | 04358049 | 20/05/2008 | 31/01/2010 | Dissolved |
| FRANKLIN FUELING SYSTEMS LIMITED | 02631843 | 29/05/1992 | 15/06/2000 | Gold |
| Online Courseware Factory Ltd | 03818146 | 16/03/2000 | 31/01/2002 | Dissolved |
| Online Courseware Factory Ltd | 03818146 | 16/03/2000 | 30/10/2001 | Dissolved |
| POWER INTEGRATIONS UK LIMITED | 04025031 | 29/01/2003 | 21/02/2008 | Gold |
| POWER INTEGRATIONS UK LIMITED | 04025031 | 25/03/2002 | 04/04/2008 | Gold |
| TERAVIEW LIMITED | 04126946 | 17/02/2011 | 21/09/2011 | Amber |
| UNIVERSITY OF CAMBRIDGE CHALLENGE FUND | 03868778 | 26/06/2003 | 21/10/2005 | Dissolved |