The register
The register lists Castlecrafts Ltd in Driffield, East Riding of Yorkshire as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Its rating on the register is Worker (A rating).
Companies House lists it as Castlecrafts Limited, number 00535318, incorporated 1954: 72 years of filings behind the name. The registered office is at Dewhirst House,, Westgate,, Driffield,, East Yorkshire, YO25 6TH, YO25 6TH. By its SIC codes the business is in manufacturing. It has traded under other names before, including Dewhirst (ladieswear) Limited, Slimma (wales) 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.