| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| PORTSMOUTH AVIATION HOLDINGS LIMITED | 00476872 | 21/02/2022 | Silver |
| PORTSMOUTH AVIATION LIMITED | 00238470 | 20/02/2022 | Gold |
| POWERPHOTONIC LIMITED | SC267035 | 18/05/2016 | Bronze |
| SURREY NANOSYSTEMS LIMITED | 03781545 | 01/05/2017 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADS GROUP LIMITED | 07016635 | 01/02/2020 | 31/12/2020 | Bronze |
| AVON TECHNOLOGIES PLC | 00032965 | 01/06/2007 | 02/12/2020 | Silver |
| CHEMRING COUNTERMEASURES LIMITED | 00218229 | 01/02/1992 | 04/04/2005 | Gold |
| CHEMRING EUROPE LIMITED | 00746603 | 21/09/1994 | 04/04/2005 | Dissolved |
| CHEMRING GROUP PLC | 00086662 | 01/02/1992 | 21/03/2012 | Silver |
| CHEMRING HOLDINGS LIMITED | 02731691 | 16/08/1993 | 04/04/2005 | Silver |
| CHEMRING LIMITED | 00369716 | 01/02/1993 | 04/04/2005 | Dissolved |
| CHG DESIGN LIMITED | 01372655 | 20/02/1996 | 04/04/2005 | Dissolved |
| COMMUNITY FUSION | 07577808 | 10/08/2011 | 02/05/2012 | Dissolved |
| I.C.S. ELECTRONICS LIMITED | 01615525 | 12/07/2002 | 04/04/2005 | Gold |
| KEMBREY WIRING SYSTEMS LIMITED | 01356836 | 21/09/1994 | 08/11/2003 | Dissolved |
| Microsulis Ltd | 03050058 | 26/04/1995 | 04/12/1997 | Dissolved |
| PARKWAY NO 3 LIMITED | 00560827 | 01/02/1992 | 04/04/2005 | Dissolved |
| PARKWAY NO 7 LIMITED | 02731693 | 20/04/1994 | 04/04/2005 | Dissolved |
| PARKWAY NO 9 LIMITED | 02731699 | 16/07/1992 | 04/04/2005 | Dissolved |
| PROTOX ENVIRONMENTAL SYSTEMS LIMITED | 02622013 | 13/11/1991 | 04/04/2005 | Dissolved |
| PW DEFENCE LIMITED | 03086504 | 06/09/1995 | 04/04/2005 | Dissolved |
| PW DEFENCE LTD | 00464142 | 24/07/1992 | 04/04/2005 | Gold |
| Reynolds (Bristol) Ltd | 00120400 | 01/02/1992 | 06/05/1998 | Dissolved |
| WHATMAN LIMITED | 00630958 | 01/01/2006 | 24/05/2007 | Silver |