The register
The register lists Jacks Gelato Limited in Cambridge 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).
Jacks Gelato Limited is the registered name (Companies House number 12481791), a private limited company on the register since 2020. Registered office: Manor Form Manor Farm Road, Girton, Cambridge, CB3 0RX, CB3 0RX. By its SIC codes the business is in food and drink manufacturing.
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.