| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ANTHROPODS&CO LIMITED | 11096984 | 29/05/2018 | Insolvent |
| Enabled Systems Ltd | 03606308 | 29/07/1998 | Dissolved |
| Optiglass Devices Ltd | 03733230 | 17/01/2001 | Dissolved |
| PPRC LIMITED | 13709602 | 28/10/2021 | Not Trading |
| RWY LTD | 10732937 | 20/04/2017 | Dissolved |
| Spinpenny Ltd | 04054744 | 15/11/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| APPLIED ENZYME TECHNOLOGY LIMITED | 02966552 | 09/09/1994 | 19/10/1994 | Strike Off |
| AQUA ENVIRO LIMITED | 03609558 | 26/04/2001 | 03/07/2003 | Dissolved |
| Applied Modelling Technologies Ltd | 03794131 | 20/10/2000 | 04/05/2001 | Dissolved |
| BLOODHOUND SENSORS LIMITED | 02919039 | 19/10/1994 | 08/07/2005 | Dissolved |
| Bethan Technology Ltd | 03040051 | 31/03/1995 | 13/05/1999 | Dissolved |
| Bioventures Ltd | 02867548 | 26/10/1993 | 16/12/1993 | Dissolved |
| Bioventures Ltd | 02867548 | 26/10/1993 | 20/10/2001 | Dissolved |
| Cosecure Ltd | 02966847 | 12/09/1994 | 29/01/1997 | Dissolved |
| Decision Point Ltd | 03078408 | 01/09/1997 | 08/11/1997 | Dissolved |
| Decision Point Ltd | 03078408 | 18/08/1995 | 08/11/1997 | Dissolved |
| ECERTEC LIMITED | 03912327 | 07/03/2001 | 31/07/2003 | One Red Flag |
| ERCL LIMITED | 08743541 | 07/04/2015 | 31/07/2016 | Silver |
| EVIDENCE LIMITED | 04036650 | 27/06/2002 | 16/11/2007 | Dissolved |
| Earthco Adhesive Technologies Ltd | 04101214 | 15/11/2000 | 12/01/2002 | Dissolved |
| GELECTRIX LIMITED | 03236565 | 30/09/1997 | 02/11/2007 | Dissolved |
| GEOPHYSICAL EXPLORATION TECHNOLOGY LIMITED | 05575880 | 20/12/2013 | 30/09/2016 | Strike Off |
| GETECH GROUP PLC | 02891368 | 26/01/1994 | 31/07/2016 | Amber |
| GLUCO TECHNOLOGY LIMITED | 03682634 | 03/04/2000 | 08/10/2007 | Insolvent |
| INSTRUMENTEL LIMITED | 04325633 | 21/11/2001 | 05/08/2003 | Amber |
| IXRM LTD | 10627522 | 11/06/2018 | 26/10/2020 | Dissolved |
| Leeds Antenatal Screening Service Ltd | 04716165 | 08/05/2003 | 02/11/2007 | Dissolved |
| MEDIA INNOVATIONS LIMITED | 04568322 | 21/10/2002 | 02/11/2007 | Dissolved |
| Matrix Strategic Research Ltd | 03157689 | 10/04/1997 | 27/05/1998 | Dissolved |
| Matrix Strategic Research Ltd | 03157689 | 10/04/1997 | 27/05/1998 | Dissolved |
| PRECISION PROTEINS LIMITED | 03602698 | 09/05/2000 | 02/11/2007 | Dissolved |
| Polk Leeds Ltd | 02453896 | 01/09/1997 | 08/11/1997 | Dissolved |
| ROCK DEFORMATION RESEARCH LIMITED | 03791808 | 16/06/2000 | 17/07/2003 | Dissolved |
| SCIENCE WAREHOUSE LIMITED | 02890957 | 03/03/2000 | 31/03/2000 | Silver |
| STRUCTURE VISION LIMITED | 04705453 | 20/03/2003 | 13/05/2004 | Silver |
| Stratica Ltd | 03340093 | 25/03/1998 | 18/05/1999 | Dissolved |
| UNIVERSITY OF LEEDS INNOVATIONS LIMITED | 01002075 | 11/04/2002 | 25/06/2002 | Dissolved |
| UNIVERSITY OF LEEDS INNOVATIONS LIMITED | 01002075 | 06/09/1993 | 31/03/2003 | Dissolved |
| UNIVERSITY OF LEEDS IP LIMITED | 04582496 | 08/04/2003 | 02/11/2007 | Silver |