| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARCONIC UK SHARE SCHEME TRUSTEE LIMITED | 04132129 | 19/06/2002 | Dissolved |
| BRADLEY & FOSTER LIMITED | 00090670 | 20/11/2014 | One Red Flag |
| FIRTH RIXSON AURORA LIMITED | 00201071 | 20/11/2014 | Dissolved |
| LEEDS FIRECLAY COMPANY LIMITED(THE) | 00029145 | 20/11/2014 | Dissolved |
| MEADOWHALL (EABS) LIMITED | 00169053 | 20/11/2014 | Dissolved |
| MEADOWHALL (EAF) LIMITED | 00896597 | 20/11/2014 | Dissolved |
| WILLIAM BEARDMORE & CO.,LIMITED | 00072531 | 20/11/2014 | Insolvent |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 00107661 LIMITED | 00107661 | 20/11/2014 | 25/06/2019 | Dissolved |
| ABPS (TRUSTEES) LIMITED | 10542139 | 29/12/2016 | 25/07/2019 | Dissolved |
| ALLOY TECHNOLOGIES (UK) LIMITED | 02965664 | 01/03/2014 | 28/06/2019 | Gold |
| ALUMAX U.K. LIMITED | 03136596 | 01/03/2014 | 01/07/2019 | Dissolved |
| ARCONIC CLOSURE SYSTEMS INTERNATIONAL (UK) LIMITED | 00640988 | 01/03/2014 | 01/07/2019 | Dissolved |
| ARCONIC MANUFACTURING (GB) LIMITED | 00633328 | 01/03/2014 | 01/03/2014 | One Red Flag |
| ARCONIC UK FINANCE | 04100571 | 28/03/2007 | 01/07/2019 | Silver |
| ARCONIC UK HOLDINGS LIMITED | 04099001 | 01/03/2014 | 28/06/2019 | Gold |
| AURORA GROUP LIMITED | 00086849 | 20/11/2014 | 28/06/2019 | Dissolved |
| BRITISH ALUMINIUM LIMITED | 03981390 | 01/03/2014 | 28/06/2019 | Silver |
| ENPAR LIMITED | 07186879 | 20/11/2014 | 28/06/2019 | Not Trading |
| ENPAR SPECIAL ALLOYS LIMITED | 00323612 | 20/11/2014 | 25/06/2019 | Dissolved |
| ENTWISTLE LIMITED | 07186910 | 20/11/2014 | 28/06/2019 | Dissolved |
| FAIRCHILD FASTENERS (UK) LIMITED | 01118517 | 01/03/2014 | 01/07/2019 | Dissolved |
| FIRTH BROWN LIMITED | 00670047 | 20/11/2014 | 28/06/2019 | Not Trading |
| FIRTH RIXSON LIMITED | 00230737 | 20/11/2014 | 28/06/2019 | Gold |
| FIRTH RIXSON METALS LIMITED | 00138691 | 20/11/2014 | 15/01/2016 | Gold |
| FIRTH RIXSON RINGS LIMITED | 02105081 | 20/11/2014 | 28/06/2019 | Amber |
| FIRTH RIXSON SUPERALLOYS LIMITED | 00620465 | 20/11/2014 | 28/06/2019 | Dissolved |
| FORGED SOLUTIONS GROUP LIMITED | 00158672 | 20/11/2014 | 15/01/2016 | Silver |
| FORGINGS INTERNATIONAL HOLDINGS 1 LIMITED | 04597895 | 20/11/2014 | 28/06/2019 | Amber |
| FORGINGS INTERNATIONAL HOLDINGS 2 LIMITED | 04597897 | 20/11/2014 | 28/06/2019 | Bronze |
| FORGINGS INTERNATIONAL HOLDINGS 3 LIMITED | 04597899 | 20/11/2014 | 28/06/2019 | Bronze |
| FORGINGS INTERNATIONAL HOLDINGS LIMITED | 04606084 | 20/11/2014 | 28/06/2019 | One Red Flag |
| FORGINGS INTERNATIONAL LIMITED | 04597905 | 20/11/2014 | 28/06/2019 | Silver |
| FR ACQUISITIONS CORPORATION (EUROPE) LIMITED | 06403563 | 19/11/2014 | 28/06/2019 | Bronze |
| HOWMET GLOBAL FASTENING SYSTEMS LIMITED | 07550495 | 01/03/2014 | 28/06/2019 | Silver |
| HOWMET HOLDINGS LIMITED | 09092129 | 20/11/2014 | 28/06/2019 | Silver |
| HOWMET PRODUCTS UK LIMITED | 01927599 | 01/03/2014 | 28/06/2019 | Gold |
| JFB INVESTMENTS LIMITED | 00223807 | 20/11/2014 | 28/06/2019 | Dissolved |
| JFB OVERSEAS HOLDINGS LIMITED | 00874317 | 20/11/2014 | 28/06/2019 | Silver |
| MEADOWHALL (EAB) LIMITED | 00068397 | 20/11/2014 | 25/06/2019 | Dissolved |
| RIVER DON STAMPINGS LIMITED | 07677288 | 20/11/2014 | 28/06/2019 | Dissolved |
| RTI ADVANCED FORMING LIMITED | 07754118 | 23/07/2015 | 15/01/2016 | Amber |
| RTI EUROPE LIMITED | 03906707 | 23/07/2015 | 28/06/2019 | Bronze |
| RTI EXTRUSIONS EUROPE LIMITED | 08606324 | 23/07/2015 | 15/01/2016 | Amber |
| RTI INTERNATIONAL METALS LIMITED | 03585661 | 23/07/2015 | 15/01/2016 | Silver |
| SAPA PROFILES BANBURY LIMITED | 06107646 | 15/02/2007 | 08/06/2007 | Dissolved |
| THOS. FIRTH & JOHN BROWN LIMITED | 07677284 | 20/11/2014 | 28/06/2019 | Dissolved |