The register
The register lists Dragon Garden in Boston 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 Dragon Garden, number LP004221, incorporated 1992: 34 years of filings behind the name. The registered office is at 125/125a Courtlands Drive, Watford.
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.