| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| APPLIED THERMAL CONTROL LIMITED | 03079409 | 17/08/2022 | Silver |
| ASTLES CONTROL SYSTEMS LIMITED | 02490943 | 17/08/2022 | One Red Flag |
| ATIK CAMERAS LIMITED | 05948849 | 17/08/2022 | One Red Flag |
| CHELL INSTRUMENTS LIMITED | 02693453 | 19/08/2022 | One Red Flag |
| DUCTHUB LIMITED | 11154807 | 17/08/2022 | Not Trading |
| FISTREEM INTERNATIONAL LIMITED | 05136733 | 17/08/2022 | Amber |
| FRASER ANTI-STATIC TECHNIQUES LIMITED | 02642741 | 21/10/2022 | Silver |
| GRATICULES OPTICS LIMITED | 01395088 | 17/08/2022 | Amber |
| LABHUB LIMITED | 09797214 | 17/08/2022 | Not Trading |
| LTE SCIENTIFIC LIMITED | 02648370 | 06/09/2022 | Bronze |
| MONMOUTH SCIENTIFIC LIMITED | 04716008 | 17/08/2022 | Bronze |
| MPB INDUSTRIES LIMITED | 04966728 | 17/08/2022 | Silver |
| OPUS INSTRUMENTS LTD | 06456717 | 17/08/2022 | Amber |
| PEAK SENSORS (HOLDING) LIMITED | 10942202 | 03/11/2023 | Silver |
| PEAK SENSORS (PROPERTY) LIMITED | 10942852 | 03/11/2023 | Amber |
| PEAK SENSORS LIMITED | 03386191 | 03/11/2023 | Silver |
| PORVAIR PLC | 01661935 | 01/01/2023 | Gold |
| SAFELAB SYSTEMS LIMITED | 05336826 | 17/08/2022 | Bronze |
| SCIENTIFIC DIGITAL IMAGING LIMITED | 02384355 | 17/08/2022 | Amber |
| SCIENTIFIC VACUUM SYSTEMS LTD | 02538608 | 17/08/2022 | One Red Flag |
| SDI GROUP PLC | 06385396 | 08/08/2022 | Gold |
| SENTEK LIMITED | 02753857 | 17/08/2022 | Gold |
| SYNOPTICS LIMITED | 01874861 | 06/09/2022 | Silver |
| THERMAL EXCHANGE LIMITED | 02619819 | 17/08/2022 | Amber |
| ULTRA ELECTRONICS (NETHERLANDS) LIMITED | 10317509 | 02/01/2018 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AEP NETWORKS LIMITED | 04479308 | 02/01/2018 | 31/12/2019 | Strike Off |
| CARSON FLETCHER TIMBER LIMITED | 02670328 | 29/06/2007 | 26/08/2008 | Dissolved |
| CARSON FLETCHER TIMBER LIMITED | 02670328 | 29/06/2007 | 26/08/2008 | Dissolved |
| CORVID HOLDINGS LIMITED | FC034202 | 31/03/2017 | 31/12/2019 | Bronze |
| CORVID PROTECT HOLDINGS LIMITED | FC034204 | 31/03/2017 | 31/12/2019 | Bronze |
| DANDY LIMITED | 00478104 | 29/12/2005 | 26/08/2008 | Dissolved |
| DANDY LIMITED | 00478104 | 29/12/2005 | 26/08/2008 | Dissolved |
| DF GROUP LIMITED | 03574242 | 18/09/2017 | 31/12/2019 | Silver |
| ELLIOTT AND CO. (HENLEY) LIMITED | 00459603 | 29/12/2005 | 26/08/2008 | Dissolved |
| ELLIOTT AND CO. (HENLEY) LIMITED | 00459603 | 29/12/2005 | 26/08/2008 | Dissolved |
| EW SIMULATION TECHNOLOGY LIMITED | 03155211 | 02/01/2018 | 31/12/2019 | Dissolved |
| GIBBS AND DANDY LIMITED | 00165453 | 28/09/2005 | 22/09/2008 | Not Trading |
| GIBBS AND DANDY(GALES)LIMITED | 00425313 | 29/12/2005 | 26/08/2008 | Dissolved |
| GIBBS AND DANDY(GALES)LIMITED | 00425313 | 29/12/2005 | 26/08/2008 | Dissolved |
| GIGA COMMUNICATIONS LIMITED | 05068503 | 02/01/2018 | 31/12/2019 | Insolvent |
| MAGICARD LTD | 10124762 | 14/04/2016 | 23/08/2016 | Silver |
| MILLER, MORRIS & BROOKER (HOLDINGS) LIMITED | 00289123 | 01/12/2005 | 26/08/2008 | Dissolved |
| MILLER, MORRIS & BROOKER (HOLDINGS) LIMITED | 00289123 | 01/12/2005 | 26/08/2008 | Dissolved |
| MILLER,MORRIS & BROOKER(BUILDERS MERCHANTS)LIMITED | 00604199 | 29/12/2005 | 26/08/2008 | Dissolved |
| MILLER,MORRIS & BROOKER(BUILDERS MERCHANTS)LIMITED | 00604199 | 29/12/2005 | 26/08/2008 | Dissolved |
| ONE STOP TRADE BUILDING CENTRE LIMITED | 00125647 | 29/12/2005 | 26/08/2008 | Dissolved |
| ONE STOP TRADE BUILDING CENTRE LIMITED | 00125647 | 29/12/2005 | 26/08/2008 | Dissolved |
| PAYGATE PAYMENT SOLUTIONS LIMITED | FC034203 | 31/03/2017 | 21/06/2019 | Dissolved |
| PRIORY RANGE LIMITED | 01292084 | 29/12/2005 | 26/08/2008 | Dissolved |
| PRIORY RANGE LIMITED | 01292084 | 29/12/2005 | 26/08/2008 | Dissolved |
| TIMBER FORCE UK LIMITED | 04021174 | 29/09/2005 | 26/08/2008 | Dissolved |
| TIMBER FORCE UK LIMITED | 04021174 | 29/09/2005 | 26/08/2008 | Dissolved |
| ULTRA ELECTRONICS HOLDINGS LIMITED | 02830397 | 04/05/2016 | 01/12/2019 | Bronze |
| ULTRA ELECTRONICS LIMITED | 02830644 | 04/05/2016 | 31/12/2019 | Gold |
| ULTRA ELECTRONICS PENSION TRUSTEE COMPANY LIMITED | 02900446 | 02/01/2018 | 02/01/2018 | Not Trading |
| ULTRA ELECTRONICS SWISS HOLDINGS COMPANY LIMITED | 10390613 | 22/09/2016 | 31/12/2019 | Insolvent |
| UNIFORM ENGINEERING LIMITED | 13117156 | 17/08/2022 | 29/02/2024 | One Red Flag |
| Ultra Electronics Qualifying Employee Share Ownership Truste | 03688270 | 20/08/1999 | 12/09/2005 | Dissolved |
| VADOS SYSTEMS LIMITED | 05178688 | 01/06/2017 | 31/12/2019 | Strike Off |