| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALMIDA GROUP UNLIMITED | 03994025 | 29/05/2020 | 31/07/2022 | Not Trading |
| ASSET DEVELOPMENT AND IMPROVEMENT LIMITED | SC302100 | 29/05/2020 | 31/07/2022 | Dissolved |
| BW GROUP UNLIMITED | SC159419 | 29/05/2020 | 31/07/2022 | Amber |
| CYCLOTECH UNLIMITED | 02887371 | 29/05/2020 | 31/07/2022 | Not Trading |
| FLARESIM LIMITED | 08749061 | 29/05/2020 | 31/07/2022 | Amber |
| GEOSERVICES UK LTD | SC346038 | 29/05/2020 | 31/07/2022 | Dissolved |
| INDEPENDENT DATA SERVICES (UK) UNLIMITED | 04855776 | 03/09/2021 | 31/07/2022 | One Red Flag |
| M-I HOLDINGS (UK) UNLIMITED | SC235399 | 29/05/2020 | 31/07/2022 | One Red Flag |
| META DOWNHOLE UNLIMITED | SC122917 | 29/05/2020 | 31/07/2022 | Not Trading |
| PEAK WELL SYSTEMS LIMITED | SC337516 | 29/05/2020 | 31/07/2022 | One Red Flag |
| RED BARON (OIL TOOLS RENTAL) LIMITED(THE) | SC077737 | 29/05/2020 | 31/07/2022 | Not Trading |
| RUBISLAW INVESTMENTS UNLIMITED | SC239426 | 29/05/2020 | 31/07/2022 | Dissolved |
| SCHLUMBERGER CAMBRIDGE RESEARCH LIMITED | 00606177 | 29/05/2020 | 31/07/2022 | Silver |
| SCHLUMBERGER FINANCE UK LIMITED | 04739100 | 29/05/2020 | 31/07/2022 | Dissolved |
| SCHLUMBERGER OILFIELD UK LIMITED | 04157867 | 29/05/2020 | 31/07/2022 | Bronze |
| SCHLUMBERGER PUBLIC LIMITED COMPANY | 01332348 | 29/05/2020 | 31/07/2022 | Amber |
| SCHLUMBERGER UK HOLDINGS LIMITED | 01686572 | 29/05/2020 | 31/07/2022 | Silver |
| SCHLUMBERGER UK LIMITED | 07373289 | 29/05/2020 | 31/07/2022 | Silver |
| SENSOR HIGHWAY LIMITED | 03148432 | 29/05/2020 | 31/07/2022 | Amber |
| SILKWATER HOLDINGS UNLIMITED | 05844753 | 29/05/2020 | 31/07/2022 | Not Trading |
| SIMPRENTIS LIMITED | 05011871 | 29/05/2020 | 31/07/2022 | Dissolved |
| SPECIALISED PETROLEUM SERVICES GROUP UNLIMITED | SC204919 | 29/05/2020 | 31/07/2022 | Amber |
| XTREME INNOVATIONS LIMITED | SC410971 | 29/05/2020 | 31/07/2022 | One Red Flag |
| XTREME WELL TECHNOLOGY LIMITED | SC341269 | 29/05/2020 | 31/07/2022 | Amber |