The register
The register lists Osh Catering LTD 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).
Companies House lists it as Osh Catering Ltd, number 11946128, incorporated 2019: 7 years of filings behind the name. Registered office: 158 Camberwell Road, London, SE5 0EE, SE5 0EE. By its SIC codes the business is in hospitality.
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.