| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Aivru Systems Ltd | 03031746 | 20/11/1998 | Dissolved |
| Annovation Ltd | 05766720 | 03/04/2006 | Dissolved |
| Aphora Ltd | 03031823 | 20/11/1998 | Dissolved |
| Auxetics Ltd | 04059877 | 25/08/2000 | Dissolved |
| BIOH2 LIMITED | 05722773 | 27/02/2006 | Dissolved |
| BIOIMAGING LIMITED | 05878201 | 17/07/2006 | Dissolved |
| BITPHASE AI LIMITED | 05272045 | 23/04/2006 | Amber |
| Bethan Technology Ltd | 03040051 | 13/05/1999 | Dissolved |
| Bioacta Ltd | 04060999 | 18/09/2000 | Dissolved |
| Ceregen Ltd | 03244554 | 04/11/1998 | Dissolved |
| Dental Teamwork Training Ltd | 04005356 | 01/06/2000 | Dissolved |
| FIRST WORLD MANUFACTURING LIMITED | 06253982 | 21/05/2007 | Dissolved |
| Firstclock Ltd | 04154793 | 06/02/2001 | Dissolved |
| ITER8 CONTROL SYSTEMS LIMITED | 06122022 | 21/02/2007 | Dissolved |
| Invector Ltd | 03153912 | 05/05/2000 | Dissolved |
| KNOWLEDGE FLO LIMITED | 07972208 | 02/07/2012 | Silver |
| KNOWLEDGE TRANSFER LIMITED | 06071982 | 29/01/2007 | Dissolved |
| LUMINARIES LIMITED | 03578567 | 10/06/1998 | Dissolved |
| Molecular Healthworks Ltd | 04125519 | 03/01/2001 | Dissolved |
| Shefcote Ltd | 04033948 | 14/07/2000 | Dissolved |
| Signalbox Ltd | 02833778 | 17/03/1999 | Dissolved |
| Thatrailwaysite.Com Ltd | 04057604 | 03/10/2000 | Dissolved |
| Thixoforge Ltd | 03930065 | 21/02/2000 | Dissolved |
| Vforge Ltd | 04215197 | 11/05/2001 | Dissolved |
| Viewcheck Ltd | 03851228 | 29/10/1999 | Dissolved |
| XSUPPRESS LIMITED | 03638032 | 17/12/1998 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADJUVANTIX LIMITED | 03867435 | 15/11/1999 | 23/10/2000 | Dissolved |
| ADVANCED MANUFACTURING (SHEFFIELD) LIMITED | 04364671 | 13/02/2002 | 03/05/2007 | Silver |
| AEQORA LIMITED | 06428241 | 15/11/2007 | 16/12/2021 | Insolvent |
| ARCADIS GEN UK (SEAMS) LIMITED | 04097101 | 26/10/2000 | 13/03/2002 | Amber |
| ASTERION LIMITED | 04129500 | 13/02/2001 | 20/12/2006 | One Red Flag |
| AXORDIA LIMITED | 03860412 | 17/11/1999 | 15/11/2004 | Dissolved |
| BIOHYDROGEN LIMITED | 05722771 | 27/02/2006 | 30/03/2007 | Dissolved |
| CAIRN TECHNOLOGY LIMITED | 03715724 | 20/03/1999 | 04/10/1999 | Silver |
| CASATOMIC LIMITED | 06605869 | 29/05/2008 | 28/02/2009 | Dissolved |
| CELLTRAN LIMITED | 03990521 | 11/05/2000 | 20/06/2000 | Dissolved |
| CERTARA UK LIMITED | 04217235 | 15/05/2001 | 29/02/2012 | Gold |
| CONTEQUE LIMITED | 03351814 | 04/11/1998 | 25/02/2003 | Dissolved |
| DICTIONARY OF CLASSICAL HEBREW LIMITED | 04012132 | 09/06/2000 | 21/07/2006 | One Red Flag |
| DIURNAL LIMITED | 05237326 | 29/09/2004 | 06/10/2005 | Amber |
| Derweb Ltd | 03934832 | 28/02/2000 | 28/04/2000 | Dissolved |
| ECUS LIMITED | 04097099 | 26/10/2000 | 30/01/2002 | One Red Flag |
| ENACTUS SHEFFIELD LIMITED | 05744582 | 15/03/2006 | 15/03/2006 | Silver |
| EPI GENESYS LIMITED | 06388971 | 03/10/2007 | 26/03/2022 | Silver |
| FARAPACK POLYMERS LIMITED | 05063994 | 04/03/2004 | 02/10/2009 | Silver |
| FURBAN LIMITED | 03563914 | 18/06/1998 | 07/03/2003 | Silver |
| FUSION IP LIMITED | 05275732 | 01/12/2004 | 20/05/2014 | Dissolved |
| FUSION IP SHEFFIELD LIMITED | 04338632 | 14/08/2003 | 16/03/2012 | Amber |
| Groundwater Protection & Restoration Consultants Ltd | 03862744 | 21/10/1999 | 17/03/2000 | Dissolved |
| MATERIAL STATE LIMITED | 04529904 | 20/11/2002 | 29/01/2003 | Dissolved |
| Narnglen Ltd | 04364672 | 13/02/2002 | 17/04/2003 | Dissolved |
| PICTORIAL MEADOWS LIMITED | 04036626 | 21/02/2001 | 16/10/2002 | Silver |
| Proactus Ltd | 03916004 | 28/01/2000 | 15/06/2000 | Dissolved |
| SHEFFIELD DATA SERVICES LIMITED | 04131381 | 31/01/2001 | 27/05/2004 | Dissolved |
| SUEL LIMITED | 01816862 | 23/06/1998 | 30/11/2008 | Silver |
| VULCAN SOLUTIONS LIMITED | 05151771 | 11/06/2004 | 21/10/2004 | Silver |
| WEBELEMENTS LIMITED | 03895726 | 16/12/1999 | 04/06/2003 | Insolvent |
| WOHANKA AND ASSOCIATES LIMITED | 04113203 | 23/11/2000 | 08/11/2004 | Silver |