The register
Castle Trust Capital Plc, London, holds a Home Office sponsor licence on the Skilled Worker route, and has been on the register since at least 2026. The register records its rating as Worker (A rating).
Companies House lists it as Castle Trust Capital PLC, number 07454474, incorporated 2010: 15 years of filings behind the name. The registered office is at 10 Norwich Street, London, EC4A 1BD, EC4A 1BD. By its SIC codes the business is in finance and insurance. It has traded under other names before, including Castle Trust Capital Limited, Morgan Trust Capital 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.