| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARTEMIS OPTICAL (HOLDINGS) LIMITED | 06552780 | 21/07/2023 | One Red Flag |
| ARTEMIS OPTICAL LIMITED | 00514290 | 21/07/2023 | Bronze |
| FAWKES NEWCO 2 LIMITED | 15925741 | 30/10/2024 | Amber |
| G&H PROPERTY HOLDINGS LIMITED | 04649035 | 14/09/2022 | Bronze |
| G&H US HOLDINGS LIMITED | 06382710 | 14/09/2022 | Silver |
| GOOCH & HOUSEGO (TORQUAY) LIMITED | 04381203 | 14/09/2022 | Silver |
| GOOCH & HOUSEGO (UK) LIMITED | 05890426 | 14/09/2022 | Bronze |
| GOOCH & HOUSEGO PLC | 00526832 | 14/09/2022 | Gold |
| INTEGRATED TECHNOLOGIES (HOLDINGS) LIMITED | 02635933 | 14/09/2022 | Not Trading |
| INTEGRATED TECHNOLOGIES LIMITED | 01300238 | 14/09/2022 | Silver |
| KENT PERISCOPES LIMITED | 05417618 | 14/09/2022 | One Red Flag |
| ORF LIMITED | 01873862 | 14/09/2022 | Not Trading |
| ORION PHOTONICS LTD | 07585825 | 30/10/2024 | Silver |
| PHOENIX OPTICAL HOLDINGS LIMITED | 10899284 | 30/10/2024 | One Red Flag |
| PHOENIX OPTICAL TECHNOLOGIES LIMITED | 05180538 | 30/10/2024 | Silver |
| SPANOPTIC LIMITED | SC192283 | 14/09/2022 | Amber |
| VITL LIMITED | 08473871 | 14/09/2022 | Bronze |
| WAVE OPTRONICS LIMITED | 06216843 | 14/09/2022 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CICOR HARTLEPOOL LTD | 00236394 | 03/10/2011 | 31/03/2022 | One Red Flag |
| FERRUS POWER LIMITED | 02601096 | 16/12/2011 | 31/03/2022 | Not Trading |
| FOX INDUSTRIES LIMITED | 02098754 | 10/10/2011 | 31/03/2022 | Not Trading |
| GHSD1 LIMITED | 04848680 | 04/08/2005 | 25/04/2007 | Dissolved |
| GHSD2 LIMITED | 02822091 | 04/08/2005 | 25/04/2007 | Dissolved |
| GHSD3 LIMITED | 03576360 | 08/09/2005 | 25/04/2007 | Dissolved |
| HALE END HOLDINGS LIMITED | 02353285 | 10/10/2011 | 31/03/2022 | Not Trading |
| KINGSLO LTD. | 01830552 | 10/10/2011 | 31/03/2022 | Not Trading |
| KRP POWER SOURCE (UK) LTD. | 00888113 | 10/10/2011 | 31/03/2022 | Not Trading |
| LINDMAN GROUP LIMITED | 04857257 | 04/08/2005 | 25/04/2007 | Dissolved |
| LINDMAN LIMITED | 02114335 | 04/08/2005 | 25/04/2007 | Dissolved |
| STADIUM ZIRKON UK LIMITED | 02126710 | 10/10/2011 | 31/03/2022 | Not Trading |
| TT ELECTRONICS (NORWICH) LIMITED | 02270716 | 19/08/2015 | 31/01/2022 | Not Trading |
| TT ELECTRONICS (WOKING) LIMITED | 07249966 | 10/10/2011 | 31/03/2022 | Not Trading |
| TT ELECTRONICS ELECTRICAL HOLDINGS LIMITED | 00459656 | 10/10/2011 | 31/03/2022 | Not Trading |
| TT ELECTRONICS IGT LIMITED | 02164435 | 03/09/2012 | 31/03/2022 | Gold |
| TT ELECTRONICS POWER LIMITED | 02844194 | 10/10/2011 | 31/01/2022 | Not Trading |
| TT ELECTRONICS UNITED WIRELESS LIMITED | 07030729 | 25/07/2014 | 31/01/2022 | Not Trading |
| TT ELECTRONICS WIRELESS DEVICES LIMITED | 00645215 | 10/10/2011 | 31/03/2022 | Not Trading |
| VALUEGOLDEN LIMITED | 02604168 | 10/10/2011 | 31/03/2022 | Not Trading |
| ZIRKON HOLDINGS LIMITED | 03730931 | 10/10/2011 | 31/03/2022 | Not Trading |