The register
The register lists Helix Offshore Crewing Services Ltd in Aberdeen, Aberdeenshire as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Its rating on the register is Worker (A rating).
Helix Offshore Crewing Services Limited is the registered name (Companies House number SC266314), a private limited company on the register since 2004. The registered office is at 13 Queen's Road, Aberdeen, AB15 4YL, AB15 4YL. By its SIC codes the business is in recruitment and employment agencies. It has traded under other names before, including Helix HR Services Limited, Cal Dive HR Services Limited.
A licence says an organisation may sponsor; it does not say it is hiring today. The way to find out is the same as for any employer: the careers page, the job boards, and a direct approach with a UK-style CV that says early that sponsorship would be needed.