| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Caiystane Investments Ltd | SC052744 | 28/02/1996 | Dissolved |
| Caiystane Investments Ltd | SC052744 | 31/12/1988 | Dissolved |
| HWU001 Ltd | SC078279 | 11/01/1991 | Dissolved |
| Tunable Laser Technology Ltd | SC175460 | 21/10/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CERTIFIED ACCOUNTANTS INVESTMENT COMPANY LIMITED | 02240534 | 02/07/1992 | 06/05/1994 | Silver |
| COMPUTER APPLICATION SERVICES LIMITED | SC102278 | 20/12/1991 | 15/05/1997 | Amber |
| EDINBURGH CONFERENCE CENTRE LIMITED | SC101320 | 01/05/1995 | 15/12/1999 | Dissolved |
| EDINBURGH INSTRUMENTS LIMITED | 00962331 | 23/11/1991 | 26/11/2003 | Gold |
| EOS UK HOLDINGS LIMITED | SC032469 | 25/01/1989 | 31/08/1993 | Dissolved |
| Environment & Resource Technology Ltd | SC103087 | 29/12/1988 | 31/12/1999 | Dissolved |
| FORRES STREET LIMITED | SC126051 | 03/04/1991 | 30/11/1998 | Dissolved |
| HERIOT-WATT TRADING LIMITED | SC132919 | 15/08/1991 | 30/11/1998 | Silver |
| Heriot-Watt Properties Ltd | SC150131 | 25/08/1995 | 30/11/1998 | Dissolved |
| Interactive University Press Ltd | SC120831 | 17/10/1990 | 30/11/1998 | Dissolved |
| NORDIC ENTERPRISE TRUST | SC236084 | 30/05/2006 | 28/11/2008 | Bronze |
| Petroleum Science & Technology Institute (The) | SC120900 | 04/02/1992 | 10/04/1997 | Dissolved |
| Research Development & Management Ltd | 00986984 | 08/08/1991 | 01/11/1992 | Dissolved |
| Strategic Technology & Management Programmes Ltd | SC138076 | 30/04/1992 | 24/11/1994 | Dissolved |
| TEKNISK ISOLERING (U.K.) LIMITED | SC101942 | 31/12/1988 | 03/02/1989 | Insolvent |
| THE SCOTTISH COLLEGE OF TEXTILES LIMITED | SC096763 | 30/09/1988 | 30/11/1998 | Not Trading |
| The Scottish Director Centre Ltd | SC143869 | 10/08/1993 | 30/11/1998 | Dissolved |