The register
The register lists Blackhall Powis in Glasgow as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
Blackhall & Powis Ltd is the registered name (Companies House number SC566994), a private limited company on the register since 2017. Registered office: C/O Clarity Accounting (Scotland) Ltd, 234 West George Street, Glasgow, G2 4QY, G2 4QY. By its SIC codes the business is in other services.
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.