| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AIRTO LIMITED | 01217006 | 20/12/1992 | Silver |
| Esip Management Ltd | 06509483 | 20/02/2008 | Dissolved |
| INSTITUTE FOR SUSTAINABILITY | 06856082 | 01/12/2009 | Dissolved |
| KECRYPT LIMITED | 04338500 | 29/10/2004 | Dissolved |
| MERRIBROOK LIMITED | 04708689 | 24/03/2003 | Dissolved |
| SATELLITE FINANCE NETWORK | 12088530 | 06/07/2019 | Silver |
| SUSTAINABLE TECHNOLOGY PARTNERSHIP FOUNDER PARTNER LLP | OC322520 | 09/01/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BIODEXA PHARMACEUTICALS (WALES) LIMITED | 04929486 | 11/05/2004 | 14/10/2009 | One Red Flag |
| BRITISH CERAMIC RESEARCH | 00453225 | 12/04/1999 | 11/05/2005 | Dissolved |
| E-SYNERGY EARLY GROWTH FUND LIMITED | 04597036 | 21/11/2002 | 08/12/2010 | Dissolved |
| E-SYNERGY LIMITED | 03865384 | 08/11/1999 | 08/12/2010 | Dissolved |
| E-SYNERGY MANAGEMENT LIMITED | 06210955 | 27/06/2007 | 08/12/2010 | Dissolved |
| E-SYNERGY NI GENERAL PARTNER LIMITED | NI070198 | 15/08/2008 | 08/12/2010 | Dissolved |
| EAST MIDLANDS EARLY GROWTH FUND LIMITED | 05916692 | 01/11/2008 | 08/12/2010 | One Red Flag |
| INFECTION CONTROL ENTERPRISE LIMITED | 05598234 | 24/10/2005 | 21/12/2005 | One Red Flag |
| Image Automation Ltd | 01902336 | 24/10/1991 | 31/03/2003 | Dissolved |
| NPL MANAGEMENT LIMITED | 02937881 | 25/10/2000 | 17/04/2003 | Gold |
| Prescient Systems Ltd | 02640266 | 17/03/1992 | 13/07/1995 | Dissolved |
| RIVERS CAPITAL PARTNERS LIMITED | 06795536 | 27/04/2009 | 31/03/2011 | Dissolved |
| Sira Associates Ltd. | 02540284 | 17/09/1991 | 31/03/2003 | Dissolved |
| Sira Communications Ltd | 02423360 | 18/09/1991 | 31/03/2003 | Dissolved |
| Sira Consulting Ltd | 01600723 | 24/10/1991 | 31/03/2003 | Dissolved |
| Sira Group Ltd | 03444757 | 13/10/1997 | 31/03/2003 | Dissolved |
| Sira Innovation Ltd | 02287839 | 17/08/1992 | 31/03/2003 | Dissolved |
| Sira Ltd | 00150576 | 24/10/1992 | 31/03/2003 | Dissolved |
| Sira Technology Ltd | 02248869 | 29/11/1991 | 31/03/2003 | Dissolved |
| THE ENGINE HOUSE BEXLEY LIMITED | 05679892 | 27/06/2006 | 26/06/2014 | Silver |
| THE INSTITUTE OF KNOWLEDGE TRANSFER | 05312703 | 24/02/2005 | 31/01/2008 | Dissolved |