| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALPHR HOLDINGS LIMITED | 01971403 | 20/09/2016 | Dissolved |
| ALPHR MBO LIMITED | 05250490 | 20/09/2016 | Dissolved |
| CHEMICAL PROCESS SYSTEMS LIMITED | 03223012 | 17/09/2020 | Dissolved |
| ESI SERVICE UK LTD | 07267024 | 27/05/2010 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALPHR TECHNOLOGY LIMITED | 02967759 | 20/09/2016 | 13/03/2019 | One Red Flag |
| BARWOOD PROCESS LIMITED | 12508617 | 17/09/2020 | 28/06/2021 | Silver |
| CORROSION RESISTANT PRODUCTS LIMITED | 03564229 | 08/05/2019 | 01/07/2021 | Silver |
| ESI PROCESS U.K. LIMITED | 04303465 | 12/10/2001 | 30/06/2021 | Bronze |
| FLUID CONTROLS LIMITED | 02275692 | 06/04/2016 | 18/12/2018 | Gold |
| MEDICAL GASES LIMITED | 01696776 | 17/09/2020 | 28/06/2021 | Bronze |
| MICROGAS SYSTEMS LIMITED | 01806871 | 17/09/2020 | 28/06/2021 | Gold |
| PRECISION PARTS UK LIMITED | 05058855 | 08/05/2018 | 07/07/2021 | Bronze |
| PURETECH PROCESS SYSTEMS LIMITED | 02267521 | 17/09/2020 | 28/06/2021 | Gold |
| SUNFLOWER MEDICAL LIMITED | 04514281 | 19/01/2017 | 16/11/2018 | Bronze |
| THE TRELAWNY GROUP LIMITED | 08952107 | 30/06/2015 | 27/11/2018 | Dissolved |
| TRELAWNY SPT LIMITED | 04943839 | 30/06/2015 | 16/11/2018 | Bronze |
| U.K. GAS TECHNOLOGIES LIMITED | 02565991 | 17/09/2020 | 28/06/2021 | Silver |
| YB FIXINGS LTD | SC075801 | 14/07/2017 | 16/11/2018 | Bronze |