| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Aurora Ip Ltd | 05766542 | 26/05/2006 | Dissolved |
| Bi Au Ltd | 06340339 | 10/08/2007 | Dissolved |
| HSIC GP1 LIMITED | 08008701 | 31/12/2018 | Not Trading |
| HSIC GP2 LIMITED | 08008736 | 31/12/2018 | Not Trading |
| HSIC NO.3 LIMITED | 13467718 | 30/11/2023 | Silver |
| HSIC NO.4 GP LIMITED | 15027174 | 25/07/2023 | Bronze |
| Kamelian Ltd | 03991226 | 03/07/2000 | Dissolved |
| Powdercut Ltd | 05421795 | 12/04/2005 | Dissolved |
| THE HARWELL QUAD ONE LIMITED | 10289329 | 21/07/2016 | Bronze |
| THE HARWELL SCIENCE AND INNOVATION CAMPUS GENERAL PARTNER LIMITED | 06456598 | 31/12/2018 | Silver |
| THE HARWELL SCIENCE AND INNOVATION CAMPUS NO.4 NOMINEE LIMITED | 15027735 | 25/07/2023 | Bronze |
| THE HARWELL SCIENCE AND INNOVATION CAMPUS NOMINEE LIMITED | 06539339 | 31/12/2018 | Not Trading |
| THE HARWELL SCIENCE AND INNOVATION CAMPUS NOMINEE NO.2 LIMITED | 10996987 | 31/12/2018 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| COBALT LIGHT SYSTEMS LIMITED | 05856979 | 26/06/2006 | 07/07/2017 | Dissolved |
| CONSTELLATION TECHNOLOGIES LIMITED | 06397500 | 27/10/2008 | 03/05/2011 | Dissolved |
| HSIC GP1 LIMITED | 08008701 | 27/03/2012 | 19/07/2018 | Not Trading |
| HSIC GP2 LIMITED | 08008736 | 27/03/2012 | 19/07/2018 | Not Trading |
| L3 TECHNOLOGY LIMITED | 04242731 | 11/11/2005 | 05/06/2006 | Dissolved |
| MDA SPACE AND ROBOTICS LIMITED | 05495455 | 13/04/2006 | 06/07/2009 | One Red Flag |
| MICROVISK LIMITED | 05035044 | 26/08/2005 | 10/09/2009 | Amber |
| MIRICO LTD. | 09376628 | 07/01/2015 | 15/12/2015 | Amber |
| QUANTUM DETECTORS LIMITED | 05575019 | 27/09/2005 | 10/12/2017 | Bronze |
| SCITECH PRECISION LIMITED | 06836214 | 04/03/2009 | 13/11/2017 | Silver |
| SPECTRUM (LIMITED PARTNER) LTD | 04409886 | 19/10/2010 | 04/07/2018 | Not Trading |
| STFC INNOVATIONS LIMITED | 04361684 | 06/06/2003 | 08/08/2018 | Bronze |
| THE HARWELL SCIENCE AND INNOVATION CAMPUS GENERAL PARTNER LIMITED | 06456598 | 09/12/2011 | 19/07/2018 | Silver |
| THE HARWELL SCIENCE AND INNOVATION CAMPUS NOMINEE LIMITED | 06539339 | 09/12/2011 | 19/07/2018 | Not Trading |
| THE HARWELL SCIENCE AND INNOVATION CAMPUS NOMINEE NO.2 LIMITED | 10996987 | 04/10/2017 | 19/07/2018 | Not Trading |
| THRUVISION LIMITED | 04995276 | 14/06/2004 | 15/09/2004 | Dissolved |
| UK INDUSTRIAL FUSION SOLUTIONS LTD | 14620804 | 27/01/2023 | 17/07/2024 | Not Trading |
| VIVAMOS LTD | 09096386 | 20/06/2014 | 02/07/2018 | Dissolved |
| WIKA OPTICAL SENSING LIMITED | 04894975 | 10/09/2003 | 22/10/2003 | Amber |