| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BARKER AND WRIGHT LIMITED | 07582596 | 29/03/2011 | Dissolved |
| DARTON CERAMICS LIMITED | 07738054 | 17/07/2012 | Dissolved |
| FARADION LIMITED | 07338748 | 25/11/2010 | Amber |
| INERTIUS LIMITED | 05614103 | 20/08/2013 | Dissolved |
| NATION REP LIMITED | 11591736 | 27/09/2018 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A E A Technology Ebis Ltd | 02586789 | 18/03/1991 | 01/12/1999 | Dissolved |
| ABSL POWER SOLUTIONS LTD | 02840892 | 16/03/1998 | 18/01/2000 | Silver |
| ACELERON LIMITED | 10344567 | 26/06/2019 | 23/11/2021 | Dissolved |
| AGM BATTERIES LIMITED | 03479383 | 16/06/1998 | 03/05/2000 | Insolvent |
| ARTS AT THE OLD FIRE STATION | 07371445 | 07/11/2011 | 29/04/2021 | Silver |
| CARBON AIR LIMITED | 07855626 | 16/08/2017 | 28/09/2023 | Amber |
| CFX LIMITED | 03524833 | 01/04/1999 | 20/01/2000 | Dissolved |
| COMPANY HEALTH GROUP PLC | 04021148 | 22/08/2000 | 25/09/2002 | Dissolved |
| COVESION LIMITED | 06338847 | 31/12/2008 | 17/07/2012 | Silver |
| COVESION LIMITED | 06338847 | 15/08/2007 | 17/07/2012 | Silver |
| EVOLUTION SECURITIES LIMITED | 02316630 | 22/09/2000 | 02/08/2001 | Dissolved |
| FAST REACTOR TECHNOLOGY LIMITED | 01853864 | 07/10/1998 | 02/05/2000 | Not Trading |
| HOTTINGER BRUEL & KJAER UK LTD | 01589921 | 30/01/1998 | 03/05/2000 | Bronze |
| ILIKA TECHNOLOGIES LTD | 05048795 | 14/05/2004 | 10/11/2004 | Amber |
| IP GROUP PLC | 04204490 | 17/05/2001 | 13/11/2002 | Silver |
| IP2IPO LIMITED | 04072979 | 22/11/2000 | 13/11/2002 | Bronze |
| IP2IPO MANAGEMENT LIMITED | 04368104 | 19/03/2002 | 13/11/2002 | Dissolved |
| MC9 LTD | 06945999 | 01/01/2010 | 27/04/2011 | Dissolved |
| MOLECULAR VISION LIMITED | 04292847 | 01/11/2006 | 26/02/2010 | Amber |
| NANOTECTURE GROUP PLC | 05131621 | 18/05/2004 | 21/07/2006 | Dissolved |
| NANOTECTURE LIMITED | 04622794 | 20/01/2003 | 21/07/2006 | Dissolved |
| Novarc Ltd | 04185613 | 26/04/2001 | 28/10/2004 | Dissolved |
| PHARMINOX LIMITED | 04345812 | 16/01/2002 | 14/06/2005 | Strike Off |
| POLYFECT SOLUTIONS LIMITED | 06615827 | 09/07/2008 | 15/11/2010 | Dissolved |
| Phonologica Ltd | 05057369 | 26/02/2004 | 12/11/2004 | Dissolved |
| RISKSOL CONSULTING LTD | 03915179 | 28/01/2000 | 03/05/2000 | Gold |
| ROBIN A TECHNOLOGY REALISATIONS PLC | 03095862 | 01/10/1998 | 03/05/2000 | Dissolved |
| SOUTHAMPTON ASSET MANAGEMENT LIMITED | 04367489 | 19/03/2002 | 15/03/2004 | Bronze |
| SOUTHAMPTON INNOVATIONS LIMITED | 02595189 | 19/03/2002 | 27/02/2007 | Dissolved |
| WILDKNOWLEDGE LTD | 05738861 | 14/07/2006 | 30/05/2011 | Amber |
| Zyentia Ltd | 04445253 | 23/05/2002 | 19/01/2004 | Dissolved |