| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ACAL ENERGY LTD | 05209861 | 06/04/2007 | Dissolved |
| British Smaller Technology Companies Vct Plc | 03646045 | 21/01/1999 | Dissolved |
| Cambridge Advanced Materials Ltd | 02127727 | 15/11/1990 | Dissolved |
| Identica Generics Ltd | 01982817 | 24/11/1997 | Dissolved |
| TIMBERPOST LIMITED | SC277557 | 06/05/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BRITISH SMALLER COMPANIES VCT PLC | 03134749 | 28/11/2000 | 21/09/2010 | Gold |
| BRITISH SMALLER COMPANIES VCT2 PLC | 04084003 | 16/11/2000 | 31/12/2020 | Gold |
| CHORD CAPITAL LIMITED | 02032847 | 12/12/2000 | 22/11/2002 | Gold |
| DIGITAL HEALTHCARE LIMITED | 03838790 | 20/12/2004 | 03/01/2008 | Gold |
| GENESIS CONSULTING LIMITED | SC121256 | 24/04/1992 | 31/12/2005 | Dissolved |
| Gentech Investment Management Ltd | 03998940 | 01/09/2000 | 22/11/2002 | Dissolved |
| INSTEM SCIENTIFIC LIMITED | 03861669 | 21/01/2000 | 26/10/2007 | Amber |
| Martello Partners Llp | OC302332 | 13/06/2003 | 30/06/2004 | Dissolved |
| Mediawell Ltd | 02185053 | 11/06/1992 | 15/12/1995 | Dissolved |
| NIGHTINGALE-EOS LIMITED | 05655183 | 26/06/2013 | 07/10/2015 | Dissolved |
| ODOS IMAGING LIMITED | SC374224 | 06/07/2010 | 30/11/2017 | Dissolved |
| OXONICA LIMITED | 05363273 | 17/06/2005 | 27/09/2007 | Bronze |
| OXONICA MATERIALS LIMITED | 03533639 | 23/09/2004 | 17/06/2005 | Dissolved |
| PERVASID LIMITED | 07559981 | 25/08/2016 | 05/07/2022 | Amber |
| QUADRO HARSTON LIMITED | 02015785 | 01/08/1992 | 22/11/2002 | Bronze |
| Qariba Ltd | 03708998 | 18/01/2001 | 22/11/2002 | Dissolved |
| SAGENTIA LIMITED | 02081960 | 23/07/1992 | 09/06/2000 | Silver |
| SPHERE MEDICAL HOLDING LIMITED | 04179503 | 23/02/2004 | 10/11/2011 | Dissolved |
| SPHERE MEDICAL LIMITED | 04179507 | 20/09/2002 | 29/12/2003 | Dissolved |
| SUNAMP LIMITED | SC293690 | 24/10/2012 | 26/03/2019 | Bronze |
| Severn Trent (G.T.) Ltd | 02810305 | 05/08/1993 | 10/10/1996 | Dissolved |
| Technology & Finance Ltd | 03631188 | 22/09/1998 | 28/12/2001 | Dissolved |
| VOXAR | SC145641 | 25/04/1997 | 14/09/2004 | Dissolved |
| Venture Generics Ltd | 02185052 | 31/07/1991 | 19/11/1996 | Dissolved |
| Westica Ltd | SC150365 | 18/04/2001 | 16/08/2004 | Dissolved |
| XEROS LIMITED | 05933013 | 29/01/2009 | 21/09/2011 | One Red Flag |
| ZINWAVE HOLDINGS LIMITED | 06496829 | 15/02/2008 | 22/04/2009 | Silver |
| ZINWAVE LIMITED | 04587255 | 10/03/2004 | 30/09/2005 | Bronze |