The register
The register lists Strasys in 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).
Strasys Limited is the registered name (Companies House number 09396355), a private limited company on the register since 2015. Registered office: 3rd Floor Marlborough House, 298 Regents Park Road, Finchley, London, N3 2SZ, N3 2SZ. Its filed activity puts it in professional and technical services.
Holding a licence is the expensive, slow part done. For Strasys the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.