| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| B.O.C. LIMITED | NF001005 | 11/08/1958 | 27/10/2006 | Dissolved |
| EDWARDS HIGH VACUUM INTERNATIONAL LIMITED | 01148654 | 24/04/1996 | 20/11/2001 | Dissolved |
| NORTHEY HHV LTD | 07239677 | 29/04/2010 | 10/11/2016 | Dissolved |
| PORVAIR PLC | 01661935 | 01/04/2014 | 10/11/2016 | Gold |
| TELEDYNE E2V LIMITED | 04439718 | 01/11/2010 | 03/11/2016 | Dissolved |
| THE UNIVERSITY OF MANCHESTER INNOVATION CENTRE LIMITED | 03278630 | 23/09/2011 | 10/11/2016 | Dissolved |
| UNIVERSITY OF MANCHESTER INNOVATION FACTORY LIMITED | 05177409 | 01/05/2010 | 10/11/2016 | Silver |