The register
The register lists Roviox Limited in Edinburgh as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. The register records its rating as Worker (A rating).
At Companies House the business is Roviox Limited (company number SC761351), a private limited company incorporated in 2023, 3 years ago. Registered office: 5 South Charlotte Street, Edinburgh, EH2 4AN, EH2 4AN. By its SIC codes the business is in it, software and media.
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.