The register
The register lists Umnai Limited in London 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).
Companies House lists it as Umnai Limited, number 15251284, incorporated 2023: 3 years of filings behind the name. The registered office is at 37-38 Long Acre, London, WC2E 9JT, WC2E 9JT. Its filed activity puts it 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.