| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARMSTRONG PROJECTS LIMITED | 02663511 | 29/03/1995 | Dissolved |
| H A T Securities Ltd | 01704031 | 27/03/1992 | Dissolved |
| Konserq Ltd | 02887056 | 26/07/1994 | Dissolved |
| NORTHSTAR VENTURES HOLDINGS LIMITED | 09418843 | 20/08/2015 | Gold |
| NORTHSTAR VENTURES LIMITED | 05104995 | 24/03/2010 | Silver |
| PIER TERRACE HOLDINGS LIMITED | 00660718 | 19/05/2006 | Silver |
| Redlands Consulting Unlimited | 05474106 | 24/06/2005 | Dissolved |
| Redlands Consulting Unlimited | 05474106 | 24/06/2005 | Dissolved |
| Surface Electronics Plc | 01797725 | 04/08/1991 | Dissolved |
| Time Taker Ltd | 04560223 | 11/10/2002 | Dissolved |
| Time Taker Ltd | 04560223 | 11/10/2002 | Dissolved |
| Ttl (Management) Ltd | 02626068 | 27/06/1991 | Dissolved |
| ZYNOCYTE LIMITED | SC146252 | 07/11/1996 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ABRDN INVESTMENTS LIMITED | SC108419 | 02/05/2001 | 30/11/2001 | Silver |
| ANTICUS PARTNERS LIMITED | 07155521 | 22/09/2011 | 22/03/2012 | Gold |
| AREA SEVENTEEN LIMITED | 03788317 | 07/04/2004 | 16/10/2009 | Silver |
| Bath Scientific Ltd | 01824493 | 15/10/1993 | 25/01/1996 | Dissolved |
| CANDELA TRADITIONAL LIGHTING LIMITED | 02063453 | 12/02/1992 | 21/03/1994 | Bronze |
| CAPTEUR SENSORS AND ANALYSERS LIMITED | 02475628 | 22/05/1996 | 26/11/1999 | Dissolved |
| Cymbus Bioscience Ltd | 02136520 | 29/03/1992 | 31/07/1995 | Dissolved |
| Doubleclick Campaign Management Ltd | 02378937 | 10/03/1994 | 14/08/1996 | Dissolved |
| ECERTEC LIMITED | 03912327 | 03/07/2000 | 31/07/2003 | One Red Flag |
| FINANCE YORKSHIRE EQUITY GP LIMITED | 07174427 | 22/09/2011 | 22/03/2012 | Silver |
| Floretta Foods Ltd | 02600498 | 15/10/1993 | 21/03/1994 | Dissolved |
| NORTHSTAR VENTURES LIMITED | 05104995 | 12/07/2005 | 31/12/2008 | Silver |
| NSEI GENERAL PARTNER LIMITED | 05159296 | 23/09/2005 | 31/12/2008 | One Red Flag |
| POLYMETERS LIMITED | 01799421 | 28/02/1992 | 25/03/1994 | Dissolved |
| PROTAGONA LIMITED | 03123821 | 20/05/1996 | 24/09/1999 | Dissolved |
| Reynolds Medical Group Ltd | 02688084 | 03/11/1994 | 25/07/1997 | Dissolved |
| SECURE METERS (UK) LIMITED | 02199653 | 28/02/1992 | 20/11/1995 | Silver |
| SILISTIX LIMITED | 04744791 | 02/07/2009 | 10/12/2009 | Dissolved |
| SURFACE ACTIVE LTD. | 02586983 | 02/12/1993 | 24/08/1999 | Dissolved |
| Sechi Ltd | 01616763 | 06/06/1997 | 21/09/1999 | Dissolved |
| The Sharma Group Plc | 02655718 | 21/09/1993 | 22/03/1994 | Dissolved |