The register
The register lists Silver Summer Limited in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. The register records its rating as Worker (A rating).
Silver Summer Ltd is the registered name (Companies House number 14543451), a private limited company on the register since 2022. The registered office is at 86-90 Paul Street 86-90 Paul Street, London, England,, London, EC2A 4NE, EC2A 4NE. By its SIC codes the business is in it, software and media.
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.