The register
The register lists Eterna Partners Limited in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
At Companies House the business is Eterna Partners Limited (company number 10886164), a private limited company incorporated in 2017, 9 years ago. Registered office: 7 Bell Yard, Bell Yard, London, WC2A 2JR, WC2A 2JR. By its SIC codes the business is in professional and technical services. It has traded under other names before, including Broxash Communications Limited.
For a candidate this means one less obstacle: Eterna Partners Limited already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.