The register
The register lists Synthesis Systems Limited in London as a licensed sponsor on Global Business Mobility: Senior or Specialist Worker and Skilled Worker, 2 routes in all, and has done since at least 2026. Rating on the current register: Worker (A rating).
Synthesis Systems Ltd is the registered name (Companies House number 11457036), a private limited company on the register since 2018. Registered office: The Brew Eagle House, 163 City Road, London, EC1V 1NR, EC1V 1NR. 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.