| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ELONICS LIMITED | SC256532 | 21/08/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CIRRUS LOGIC INTERNATIONAL (UK) LTD | SC089839 | 11/08/1989 | 11/09/2012 | Gold |
| EDINBURGH SCIENCE FOUNDATION LTD | SC126121 | 24/07/2012 | 21/11/2024 | Bronze |
| EDINBURGH SCIENCE LTD | SC106331 | 06/07/2007 | 21/11/2024 | Bronze |
| EDINBURGH SCIENCE WORLDWIDE LTD | SC392467 | 28/01/2011 | 21/11/2024 | Bronze |
| Edinburgh Technopole Ltd | SC089325 | 01/10/1999 | 30/08/2002 | Dissolved |
| OLD COLLEGE CAPITAL HOLDINGS LIMITED | SC092426 | 01/08/1999 | 03/08/2009 | Silver |
| RATHO QUARRY COMPANY LIMITED | SC155377 | 01/03/1999 | 04/03/2004 | Amber |
| WOLFSON PRODUCTS LIMITED | 01927020 | 26/10/1991 | 28/02/2007 | Dissolved |