| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A & G SECURITY ELECTRONICS LIMITED | 01018196 | 16/01/2023 | Not Trading |
| ANALYTICAL DEVELOPMENT COMPANY LIMITED | 00957670 | 16/01/2023 | Not Trading |
| CASTELL LOCKS LIMITED | 00925371 | 16/01/2023 | Not Trading |
| CASTELL SAFETY TECHNOLOGY LIMITED | 00866817 | 16/01/2023 | Not Trading |
| EIFFEL INVESTMENTS UK LIMITED | 11863431 | 16/01/2023 | Silver |
| ELFAB HUGHES LIMITED | 02564873 | 16/01/2023 | Not Trading |
| FFE HOLDINGS LIMITED | 03433256 | 16/01/2023 | Not Trading |
| FIRE FIGHTING ENTERPRISES LIMITED | 01679486 | 16/01/2023 | Not Trading |
| HALMA AUSTRALASIA HOLDINGS LIMITED | 13089378 | 16/01/2023 | N/A |
| HALMA EURO TRADING LIMITED | 06989991 | 16/01/2023 | Silver |
| HALMA FINANCING LIMITED | 05112079 | 16/01/2023 | Silver |
| HALMA INTERNATIONAL LIMITED | 01206652 | 16/01/2023 | Bronze |
| HALMA INVESTMENT HOLDINGS LIMITED | 05121441 | 16/01/2023 | Bronze |
| HALMA IT SERVICES LIMITED | 01972044 | 16/01/2023 | Not Trading |
| HALMA OVERSEAS FUNDING LIMITED | 06503844 | 16/01/2023 | Silver |
| HALMA PR SERVICES LIMITED | 01796890 | 16/01/2023 | Not Trading |
| HALMA PUBLIC LIMITED COMPANY | 00040932 | 16/01/2023 | Gold |
| HALMA RESISTORS UNLIMITED | 05585086 | 16/01/2023 | Bronze |
| HALMA SAFETY LIMITED | 00671388 | 16/01/2023 | Not Trading |
| HALMA SERVICES LIMITED | 00759029 | 16/01/2023 | Not Trading |
| HALMA VENTURES LIMITED | 12148090 | 16/01/2023 | Amber |
| ISO-LOK LIMITED | 00920669 | 16/01/2023 | Not Trading |
| MEADOWBRIDGE HOLDINGS LIMITED | 01210055 | 16/01/2023 | Amber |
| MISTURA SYSTEMS LIMITED | 02089831 | 16/01/2023 | Not Trading |
| PALMER ENVIRONMENTAL LIMITED | 02579634 | 16/01/2023 | Not Trading |
| PALMER ENVIRONMENTAL SERVICES LIMITED | 01734845 | 16/01/2023 | Not Trading |
| POWER EQUIPMENT LIMITED | 00158743 | 16/01/2023 | Not Trading |
| RADIO-TECH LIMITED | 02849727 | 16/01/2023 | Not Trading |
| RCS INTERNATIONAL LIMITED | 11269843 | 16/01/2023 | Not Trading |
| RESEARCH ENGINEERS LIMITED | 03212937 | 16/01/2023 | Not Trading |
| RETEN ACOUSTICS LIMITED | 01938049 | 16/01/2023 | Not Trading |
| SENTRIC SAFETY GROUP LIMITED | 02432485 | 16/01/2023 | Not Trading |
| SMITH FLOW CONTROL LIMITED | 01956503 | 16/01/2023 | Not Trading |
| SONAR RESEARCH & DEVELOPMENT LIMITED | 01557176 | 16/01/2023 | Not Trading |
| SUNTECH GROUP EB TRUSTEE LIMITED | 04513496 | 16/01/2023 | Not Trading |
| TELEGAN GAS MONITORING LIMITED | 02782454 | 16/01/2023 | Not Trading |
| WILKINSON & SIMPSON LIMITED | 00656908 | 16/01/2023 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AVIOS GROUP (AGL) LIMITED | 02260073 | 14/03/2016 | 12/06/2019 | Silver |
| BRITISH AIRWAYS PENSION TRUSTEES LIMITED | 00453632 | 19/12/2006 | 30/09/2011 | Amber |
| BRITISH AIRWAYS PLC | 01777777 | 26/02/2016 | 20/06/2019 | Bronze |
| DUNWOODY AIRLINE SERVICES LIMITED | 01430987 | 09/12/2013 | 18/04/2016 | Silver |
| FIRSTGROUP PLC | SC157176 | 01/01/2019 | 13/09/2021 | Bronze |
| IAG CARGO LIMITED | 08075326 | 18/05/2012 | 14/06/2019 | Bronze |
| IAG GBS LIMITED | 09178027 | 03/05/2018 | 01/02/2020 | One Red Flag |
| INTERNATIONAL CONSOLIDATED AIRLINES GROUP, S.A. | FC029884 | 20/06/2019 | 31/12/2020 | Amber |