# The biggest energy companies in Scotland

The energy companies registered in Scotland with the highest turnover in their latest filed accounts, ranked, with profit and growth.

Sentinel Offshore Vessels is the biggest company among the energy companies registered in Scotland by turnover, with £40.4m in its latest filed accounts. Interwell and First Marine Solutions follow. Together the 10 companies below turned over £192m in their latest filed years.

| Rank | Company | Town | Turnover | Year |
| ---: | --- | --- | ---: | --- |
| 1 | [Sentinel Offshore Vessels](https://firmfacts.co/company/sentinel-offshore-vessels-sc447169) | Aberdeen | £40.4m | FY to Dec 2025 |
| 2 | [Interwell](https://firmfacts.co/company/interwell-sc391140) | Aberdeen | £27.2m | FY to Dec 2025 |
| 3 | [First Marine Solutions](https://firmfacts.co/company/first-marine-solutions-sc346015) | Aberdeen | £21.6m | FY to Apr 2025 |
| 4 | [Nucore Group](https://firmfacts.co/company/nucore-group-sc450189) | Aberdeen | £17.7m | FY to May 2025 |
| 5 | [Imenco UK](https://firmfacts.co/company/imenco-uk-sc372021) | Aberdeen | £17.3m | FY to Dec 2024 |
| 6 | [Rotech Subsea](https://firmfacts.co/company/rotech-subsea-sc451221) | Aberdeen | £17.2m | FY to Dec 2024 |
| 7 | [Cyan Subsea UK](https://firmfacts.co/company/cyan-subsea-uk-sc150859) | Aberdeen | £13.9m | FY to Dec 2025 |
| 8 | [Geoactive](https://firmfacts.co/company/geoactive-sc362013) | Aberdeen | £13m | FY to Dec 2025 |
| 9 | [HCS Aberdeen](https://firmfacts.co/company/hcs-aberdeen-sc587308) | Glenrothes | £12m | FY to Dec 2025 |
| 10 | [Brimmond](https://firmfacts.co/company/brimmond-sc163126) | Inverurie | £11.6m | FY to Mar 2025 |

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Updated 2026-11-02 from the latest filed accounts at Companies House (Open Government Licence v3.0). Page: https://firmfacts.co/blog/biggest-energy-companies-in-scotland