The register
The register lists Sleek Immigration Services Ltd 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 Sleek Immigration Services Ltd., number 12072012, incorporated 2019: 7 years of filings behind the name. The registered office is at 830 Romford Road, London, E12 5JG, E12 5JG. By its SIC codes the business is in professional and technical services. It has traded under other names before, including Efacilitation Limited.
Holding a licence is the expensive, slow part done. For Sleek Immigration Services Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.