| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ACCESSION THERAPEUTICS LIMITED | 13083685 | 15/12/2020 | Silver |
| AIGENPULSE LIMITED | 10170711 | 08/12/2017 | Dissolved |
| ETCEMBLY LTD | 12059749 | 12/04/2021 | Bronze |
| OXFORD NANOSYSTEMS LTD | 07523447 | 14/03/2018 | Amber |
| SYNAPTIXBIO LTD | 13318389 | 07/04/2021 | Gold |
| TROCEPT THERAPEUTICS LIMITED | 13035388 | 15/12/2020 | Gold |
| The Oxford Fine Chemical Company Limited | 02664054 | 05/12/1991 | Dissolved |
| UNEQUAL LTD | 13606251 | 07/09/2021 | Gold |
| WARDSEND SERVICES LIMITED | 01838428 | 29/12/1990 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADAPTIMMUNE LIMITED | 06456741 | 17/07/2008 | 23/09/2014 | Amber |
| DEEP CASING TOOLS LIMITED | SC199420 | 31/01/2008 | 31/01/2008 | Gold |
| EVOTEC (UK) LIMITED | 02674265 | 03/04/1992 | 16/10/2000 | Bronze |
| FABASOFT LIMITED | 02764901 | 08/05/1998 | 31/01/2000 | Dissolved |
| IMMUNOCORE LIMITED | 06456207 | 06/10/2008 | 13/08/2019 | Silver |
| IMMUNOCORE NOMINEES LIMITED | 10726212 | 13/04/2017 | 05/11/2019 | Not Trading |
| Lansdown International Facilities Ltd | 01161005 | 31/01/1993 | 23/11/1994 | Dissolved |
| Lansdown Investments Ltd | 01093074 | 10/01/1993 | 23/11/1994 | Dissolved |
| Lansdown Projects Ltd | 02374822 | 21/04/1992 | 23/11/1994 | Dissolved |
| Lansdown Services Limited | 02222112 | 31/01/1993 | 23/11/1994 | Dissolved |
| M3 (EU) LIMITED | 03527430 | 03/06/1998 | 23/08/2011 | Silver |
| MEDIGENE LIMITED | 03740304 | 21/12/2000 | 27/09/2006 | Dissolved |
| MEPC MILTON PARK LIMITED | 01772924 | 31/01/1993 | 21/03/2006 | Dissolved |
| Milton Newco. Ltd | 00997299 | 31/01/1993 | 23/11/1994 | Dissolved |
| OIEST LIMITED | 04084331 | 27/11/2000 | 11/04/2003 | Dissolved |
| OXAGEN LIMITED | 03246469 | 19/03/1997 | 01/06/2000 | Dissolved |
| OXFORD INNOVATION LIMITED | 02177191 | 23/10/1998 | 09/04/2003 | Gold |
| OXFORD TRUST(THE) | 01898691 | 08/11/2019 | 17/06/2022 | Gold |
| OXXON THERAPEUTICS LIMITED | 03671700 | 19/12/2000 | 09/03/2007 | Not Trading |
| Oxford Diversity Ltd | 02985787 | 14/11/1994 | 16/10/2000 | Dissolved |
| PHOSPHONICS LIMITED | 04829817 | 25/07/2006 | 03/01/2017 | Bronze |
| PHOSPHONICS LIMITED | 04829817 | 23/02/2005 | 03/01/2017 | Bronze |
| PIRETA LIMITED | 10555941 | 31/01/2018 | 27/10/2020 | Dissolved |
| PLX TECHNOLOGY LIMITED | 02733820 | 30/10/1992 | 28/10/2005 | Dissolved |
| REGENATEC LTD | 05454367 | 30/05/2007 | 16/07/2009 | Dissolved |
| STANHOPE (STATION HILL) LIMITED | 07453041 | 29/03/2011 | 12/07/2012 | Dissolved |
| STANHOPE (WESTERLY POINT) LIMITED | 05778209 | 14/07/2010 | 12/07/2012 | Dissolved |
| THE MANOR PREPARATORY SCHOOL TRUST | 02454554 | 24/08/1992 | 31/08/2000 | Bronze |
| VOLTECH INSTRUMENTS LIMITED | 02007598 | 06/09/1993 | 28/08/1998 | One Red Flag |
| VOLTECH LIMITED | 01994622 | 06/09/1993 | 28/08/1998 | Silver |
| WARDSEND VENTURE MANAGEMENT LIMITED | 05085986 | 31/01/2008 | 31/01/2009 | Dissolved |
| WARDSEND VENTURE MANAGEMENT LIMITED | 05085986 | 31/01/2008 | 31/10/2016 | Dissolved |