| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CHESTERFIELD CYLINDERS LIMITED | 06441359 | 01/10/2018 | Not Trading |
| CHESTERFIELD PRESSURE SYSTEMS GROUP LIMITED | 04753732 | 01/10/2018 | Not Trading |
| CHESTERFIELD SPECIAL CYLINDERS LIMITED | 04869273 | 01/10/2018 | Gold |
| CHESTERFIELD TUBE COMPANY LIMITED | 05242094 | 01/10/2018 | Not Trading |
| MABLAW 555 LIMITED | 07873243 | 01/06/2015 | Dissolved |
| PRECISION MACHINED COMPONENTS LIMITED | 10684216 | 01/10/2018 | Not Trading |
| PRESSURE TECHNOLOGIES PLC | 06135104 | 03/09/2018 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AL-MET LIMITED | 01897307 | 01/10/2018 | 08/10/2024 | One Red Flag |
| AQUASO LIMITED | 09320904 | 29/01/2016 | 04/08/2017 | Dissolved |
| ARDORVIS TECHNOLOGY LIMITED | 06649410 | 01/10/2018 | 03/06/2019 | Amber |
| GREENLANE BIOGAS EUROPE LIMITED | 08989056 | 01/10/2018 | 03/06/2019 | Amber |
| MARTRACT LIMITED | 01406106 | 01/10/2018 | 08/10/2024 | Silver |
| PT BIOGAS HOLDINGS LIMITED | 08991509 | 01/10/2018 | 03/06/2019 | Bronze |
| PT BIOGAS TECHNOLOGY LIMITED | 09199230 | 01/10/2018 | 03/06/2019 | Amber |
| PT PRECISION MACHINED COMPONENTS LIMITED | 10684288 | 01/10/2018 | 08/10/2024 | One Red Flag |
| QUADSCOT HOLDINGS LIMITED | SC430424 | 01/10/2018 | 08/10/2024 | Silver |
| QUADSCOT PRECISION ENGINEERS LIMITED | SC124213 | 01/10/2018 | 08/10/2024 | One Red Flag |
| ROOTA ENGINEERING LIMITED | 01140986 | 01/10/2018 | 08/10/2024 | Bronze |
| TSC SUBSEA LTD | 01787682 | 01/06/2015 | 04/08/2017 | Bronze |