The register
The register lists SaySo Medical in London, London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
Sayso Medical Ltd is the registered name (Companies House number 11355442), a private limited company on the register since 2018. The registered office is at C/O Roxburgh Milkins Limited Merchants House North, Wapping Road, Bristol, BS1 4RW, BS1 4RW. Its filed activity puts it 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.