The register
The register lists MINTLEAF LTD t/a Millers Restaurant in Waltham, Grimsby 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 Mintleaf Ltd, number 10773778, incorporated 2017: 9 years of filings behind the name. Registered office: 55 Brigsley Road, Waltham, Grimsby, DN37 0JZ, DN37 0JZ. Its filed activity puts it in hospitality.
Holding a licence is the expensive, slow part done. For MINTLEAF LTD t/a Millers Restaurant the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.