| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| C C G Realisations Ltd | 02885326 | 31/12/1993 | Dissolved |
| CYGNUS VENTURE PARTNERS LIMITED | 01859218 | 12/06/1991 | Dissolved |
| Cygnus Group Ltd | 02023654 | 22/07/1991 | Dissolved |
| Cygnus Ltd | 02023154 | 22/07/1991 | Dissolved |
| Cygnus Management Services Ltd | 02589965 | 19/03/1991 | Dissolved |
| DELTEX MEDICAL GROUP PLC | 03902895 | 22/03/2000 | Amber |
| DELTEX MEDICAL LIMITED | 01691369 | 25/05/1992 | Amber |
| Deltex Group Ltd | 02327670 | 12/12/1991 | Dissolved |
| Deltex Group Ltd | 02327670 | 12/12/1991 | Dissolved |
| IMPERIALISE LIMITED | 01764916 | 13/01/1992 | Bronze |
| Scientific Computer Holdings Limited | 02675182 | 24/12/1991 | Dissolved |
| VENTURE RESEARCH INTERNATIONAL LIMITED | 02528023 | 06/08/1991 | Dissolved |
| Vista Ventures Ltd | 02023623 | 22/07/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 01402285 LIMITED | 01402285 | 22/09/1992 | 24/01/2000 | One Red Flag |
| ABBOTT VASCULAR DEVICES LIMITED | 01833264 | 24/05/1991 | 15/04/1993 | Amber |
| AXIS-SHIELD DIAGNOSTICS LIMITED | SC077359 | 29/09/1988 | 08/07/1996 | Gold |
| AXIS-SHIELD LIMITED | SC145200 | 25/06/1993 | 19/05/2010 | Gold |
| Acellerated Technology Ltd | 01938114 | 02/06/1997 | 01/09/2001 | Dissolved |
| BIOCOMPATIBLES INTERNATIONAL LIMITED | 02703724 | 03/04/1992 | 15/04/1993 | Dissolved |
| BIOQUELL LIMITED | 00206372 | 10/03/2008 | 10/06/2016 | Dissolved |
| CYGNUS COMPUTER GROUP LIMITED | 02658696 | 15/11/1991 | 24/01/2000 | Dissolved |
| DIAGONAL SOLUTIONS LIMITED | 00643333 | 31/12/1993 | 31/05/1994 | Dissolved |
| Deltex Medical Holdings | 03059106 | 09/05/1996 | 16/12/2003 | Dissolved |
| L K Global Financial Systems (U K) Ltd | 03027934 | 24/02/1995 | 31/03/1995 | Dissolved |
| LAIRD LIMITED | 00055513 | 01/01/1993 | 02/05/2014 | Silver |
| LOEWY LIMITED | 00843068 | 15/11/1991 | 31/03/1997 | Not Trading |
| Limbridges Ltd | 02000635 | 02/06/1997 | 19/03/1998 | Dissolved |
| MPORIUM GROUP PLC | 08696120 | 03/11/2013 | 11/12/2013 | Insolvent |
| MPORIUM LIMITED | 06032042 | 05/12/2008 | 11/12/2013 | Insolvent |
| OXFORD INSTRUMENTS MOLECULAR BIOTOOLS LIMITED | 05004981 | 07/06/2005 | 01/02/2007 | Not Trading |
| OXFORD INSTRUMENTS OVERSEAS HOLDINGS LIMITED | 03302442 | 10/01/2005 | 17/05/2005 | Silver |
| OXFORD INSTRUMENTS PENSION TRUSTEE LIMITED | 03180361 | 14/06/2001 | 01/09/2017 | Not Trading |
| OXFORD INSTRUMENTS PLC | 00775598 | 25/02/1999 | 13/09/2016 | Gold |
| OXFORD UNIVERSITY INNOVATION LIMITED | 02199542 | 01/10/2006 | 31/10/2021 | Bronze |
| PEMBROKE SQUARE FREEHOLDERS ASSOCIATION LIMITED | 01897223 | 04/12/1991 | 24/01/1992 | Gold |
| SCIENTIFIC COMPUTERS LIMITED | 00639839 | 25/10/1992 | 29/09/1993 | Dissolved |
| SCOTIA HOLDINGS PLC | 01849887 | 10/11/1992 | 06/05/1997 | Dissolved |
| SYNCONA INVESTMENT MANAGEMENT LIMITED | 10497864 | 19/12/2016 | 31/12/2021 | Amber |
| SYNCONA IP HOLDCO LIMITED | 10497873 | 19/12/2016 | 31/12/2021 | Amber |
| SYNCONA MANAGEMENT SERVICES LIMITED | 08228491 | 25/09/2012 | 27/03/2017 | Dissolved |
| SYNCONA PARTNERS LLP | OC377978 | 28/08/2012 | 19/12/2016 | Dissolved |
| Scientfic Computers Research Ltd | 01958305 | 28/02/1992 | 29/09/1993 | Dissolved |
| Siemens Magnet Technology Ltd | 02342055 | 04/07/2000 | 04/12/2003 | Dissolved |
| THE DAVID SHEPHERD WILDLIFE FOUNDATION | 04918382 | 01/10/2003 | 08/11/2018 | Gold |
| Vega Technology Ltd | 02142376 | 04/09/1991 | 24/06/1993 | Dissolved |
| X Y (UK) LIMITED | 03322954 | 01/04/1997 | 24/04/1997 | Dissolved |