| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALTEK EUROPE HOLDINGS LIMITED | 08213731 | 31/12/2020 | Silver |
| ALTEK EUROPE LIMITED | 06264798 | 31/12/2020 | One Red Flag |
| ALTEK MELTING SOLUTIONS LIMITED | 12360427 | 24/02/2020 | Bronze |
| FABER PREST LIMITED | 00036913 | 06/11/2020 | Silver |
| HARSCO (U.K.) LIMITED | 00346666 | 31/12/2020 | Silver |
| HARSCO (UK) GROUP LIMITED | 06369516 | 31/12/2020 | Amber |
| HARSCO INVESTMENT LIMITED | 03985379 | 31/12/2020 | Silver |
| HARSCO METALS 385 LIMITED | 02263950 | 29/12/2020 | Silver |
| HARSCO METALS GROUP LIMITED | 00702790 | 25/09/2018 | Bronze |
| HARSCO METALS HOLDINGS LIMITED | 00569823 | 31/12/2020 | Silver |
| SGB INVESTMENTS LIMITED | 00726995 | 06/11/2020 | Not Trading |
| SHORT BROS. (PLANT) LIMITED | 00465057 | 06/11/2020 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALUSALT LIMITED | 09233749 | 31/12/2020 | 28/06/2022 | Dissolved |
| HARSCO METALS 373 LIMITED | 00557304 | 06/11/2020 | 21/07/2022 | Dissolved |
| HLWKH 517 LIMITED | 07992643 | 31/12/2020 | 22/03/2023 | Dissolved |
| INDUCTELEC LIMITED | 00928358 | 31/12/2020 | 22/03/2023 | Dissolved |
| MASTCLIMBERS LIMITED | 04079858 | 06/11/2020 | 01/08/2023 | Dissolved |
| MULTISERV LIMITED | 01610568 | 06/11/2020 | 21/07/2022 | Dissolved |
| MULTISERV LOGISTICS LIMITED | 01372556 | 06/11/2020 | 25/07/2022 | Dissolved |
| NORTAL LIMITED | 00450678 | 31/12/2020 | 28/06/2022 | Dissolved |
| PARKER SCAFFOLDING CO LTD | 00217933 | 06/11/2020 | 22/02/2024 | Not Trading |
| SCAFFOLDING (GREAT BRITAIN) LIMITED | 00638260 | 06/11/2020 | 22/02/2024 | Not Trading |
| SGB HOLDINGS LIMITED | 00947915 | 06/11/2020 | 22/02/2024 | Not Trading |
| THE SLAG REDUCTION COMPANY LIMITED | 00696612 | 06/11/2020 | 25/07/2022 | Dissolved |