The register
The register lists Quantum Healthcare Ltd in Carlisle, Cumbria 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 Quantum Healthcare Limited, number 10902821, incorporated 2017: 9 years of filings behind the name. The registered office is at Unit 11 Fisher Street, Carlisle, Cumbria, CA3 8RH, CA3 8RH. Its filed activity puts it in health care.
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.