The register
The register lists Yoomi Ltd in Thamesmead, 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).
Companies House lists it as Yoomi Ltd, number 06915344, incorporated 2009: 17 years of filings behind the name. The registered office is at Lawrence House, 5 St Andrews Hill, Norwich, Norfolk, NR2 1AD, NR2 1AD. Its filed activity puts it in retail.
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.