The register
The register lists The Service Tree Ltd in Nottingham, Notts 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 The Service Tree Limited, number 08310335, incorporated 2012: 13 years of filings behind the name. Registered office: 76 Bridgford Road, West Bridgford, Nottingham, NG2 6AX, NG2 6AX. Its filed activity puts it in social care and care homes. It has traded under other names before, including Bennett Bolt Limited.
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.