| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Acrid Ltd | 02365314 | 30/04/1991 | Dissolved |
| COSNETA LTD | SC369569 | 07/10/2011 | Dissolved |
| Communicata Ltd | SC156504 | 19/03/2001 | Dissolved |
| ELVER LIMITED | SC036054 | 09/11/1988 | Dissolved |
| ELVINGSTON SCIENCE CENTRE LIMITED | SC120486 | 27/04/1998 | Dissolved |
| Electronic Book Factory Ltd (The) | SC121460 | 27/11/1990 | Dissolved |
| Falcon Typographic Art Ltd | SC120246 | 18/09/1990 | Dissolved |
| Freelight Systems Ltd | SC191021 | 12/01/1999 | Dissolved |
| Isocom Components Holdings Ltd | SC220724 | 14/12/2001 | Dissolved |
| Isocom Research Ltd | 03196689 | 03/03/1998 | Dissolved |
| Lifor Ltd | SC172404 | 12/01/1999 | Dissolved |
| Light Technology Ltd | SC146174 | 07/09/1994 | Dissolved |
| M POWER WORLD LIMITED | SC365554 | 15/09/2009 | Dissolved |
| MIMIV RESEARCH LIMITED | 05557827 | 08/09/2005 | Dissolved |
| ONE GREEN PLANET LIMITED | SC361265 | 16/06/2009 | Dissolved |
| Simpson Research Investment Syndicate Ltd | SC274807 | 15/10/2004 | Dissolved |
| THE FIELD EMISSION DISPLAY COMPANY LIMITED | 05144363 | 03/09/2004 | Dissolved |
| The Electronic Book Factory Ltd | SC166226 | 12/06/1996 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADVANCED FIBER PRODUCTS LIMITED | 06431612 | 16/01/2008 | 03/07/2014 | Dissolved |
| ALBACOM LIMITED | SC121731 | 16/03/1990 | 19/05/1999 | One Red Flag |
| Anamartic Ltd | 02003143 | 07/09/1991 | 09/12/1992 | Dissolved |
| CONJUNCT LIMITED | SC261901 | 01/07/2004 | 05/09/2016 | One Red Flag |
| Cardine Operations Ltd | SC104809 | 23/07/1990 | 25/01/1996 | Dissolved |
| EDINBURGH SCIENCE LTD | SC106331 | 04/11/1988 | 05/08/1993 | Bronze |
| ELVINGSTON FARM PRODUCE LTD. | SC205000 | 10/05/2000 | 26/06/2008 | Dissolved |
| ELVINGSTON SCIENCE CENTRE LIMITED | SC120486 | 02/08/1992 | 01/12/1997 | Dissolved |
| ENVIRONCOM ENGLAND LIMITED | 04980148 | 01/12/2003 | 19/12/2010 | Bronze |
| ENVIRONCOM LIMITED | SC242647 | 27/01/2003 | 19/12/2010 | Bronze |
| Energy Audits (U K) Ltd | SC250918 | 11/06/2003 | 28/10/2005 | Dissolved |
| Energy Audits Ltd | SC232106 | 16/05/2003 | 12/04/2007 | Dissolved |
| GENESIS CONSULTING LIMITED | SC121256 | 24/04/1992 | 10/05/1997 | Dissolved |
| HYPERTEC LIMITED | 03258927 | 21/04/1997 | 31/07/1998 | Silver |
| Isocom Research Ltd | 03196689 | 03/03/1998 | 01/04/1998 | Dissolved |
| LUMENTUM TECHNOLOGY UK LIMITED | 02298887 | 01/03/1995 | 02/06/2004 | Bronze |
| Livingwind Ltd | SC104583 | 25/08/1989 | 31/05/1992 | Dissolved |
| MIMIV LIMITED | 05015232 | 01/09/2004 | 30/03/2016 | Dissolved |
| Methode Fibre Optics - Europe Ltd | 02780622 | 26/03/1993 | 30/04/1993 | Dissolved |
| Oceanplease Ltd | SC188009 | 06/08/1998 | 01/04/1999 | Dissolved |
| Osprey (Overseas) Ltd | SC066408 | 19/12/1989 | 07/01/1992 | Dissolved |
| Osprey Electronics Ltd | SC057198 | 19/12/1989 | 07/01/1992 | Dissolved |
| Osprey Technology Ltd | SC065822 | 19/12/1989 | 07/01/1992 | Dissolved |
| PIGNATELLI SHIELDS LIMITED | SC105062 | 16/06/1989 | 25/06/1991 | Insolvent |
| Photonic Materials Ltd | SC186697 | 26/02/1999 | 07/10/2005 | Dissolved |
| Printable Field Emitters Ltd | 03072898 | 04/11/1996 | 01/04/2004 | Dissolved |
| SIMPSON RESEARCH LIMITED | 00839088 | 31/12/1990 | 08/09/2017 | Not Trading |
| SURVEY & DEVELOPMENT SERVICES LIMITED | SC072087 | 31/05/1998 | 29/12/1998 | Dissolved |
| Security Disposition Ltd | SC119254 | 05/11/1990 | 10/10/1992 | Dissolved |
| Shiva Europe Ltd | SC085752 | 28/06/1990 | 29/11/1994 | Dissolved |
| Signal Resources Ltd | SC135156 | 10/03/1993 | 30/04/1994 | Dissolved |
| Sigtronics Ltd | SC160723 | 08/01/1998 | 17/02/2000 | Dissolved |
| Splits Technologies Ltd | SC184007 | 08/04/1998 | 23/11/1998 | Dissolved |
| Stanley Laboratories Ltd | 00967796 | 24/12/1991 | 20/01/1995 | Dissolved |
| Syntaq Holdings Ltd | 03205864 | 23/07/1996 | 29/10/1998 | Dissolved |
| THE COMPASS SCHOOL | SC139349 | 15/07/1992 | 08/06/1993 | Silver |
| TOWER GATE CAPITAL LIMITED | 03924125 | 22/06/2000 | 01/06/2002 | Strike Off |
| The Energy Conservation Agency U K Ltd | 03700022 | 01/04/2001 | 07/08/2002 | Dissolved |
| VIBRATION TECHNOLOGY LIMITED | SC163593 | 01/10/1997 | 01/06/1999 | Dissolved |
| YERRUS NUMBER THREE LIMITED | 01559178 | 31/12/1991 | 10/01/1994 | Dissolved |