| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| GARDLINE GEOSURVEY (NORWAY) LIMITED | 06272818 | 31/03/2022 | Dissolved |
| GARDLINE HOLDINGS LIMITED | 09364881 | 07/01/2019 | Gold |
| GARDLINE LIMITED | 04589821 | 07/01/2019 | One Red Flag |
| GARDLINE MARINE SCIENCES (SOUTH AMERICA) LIMITED | 06730917 | 07/01/2019 | One Red Flag |
| GARDLINE MARINE SCIENCES LIMITED | 02571313 | 07/01/2019 | Gold |
| GARDLINE SHIPPING LIMITED | 00954145 | 07/01/2019 | One Red Flag |
| HORIZON GEOSCIENCES LIMITED | 08505084 | 28/10/2020 | Gold |
| MINERVA TECHNICAL SOLUTIONS LIMITED | 09656636 | 07/01/2019 | Dissolved |
| TITAN ENVIRONMENTAL SURVEYS LIMITED | 03890108 | 31/05/2022 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|