The register
SiFive UK Ltd, Cambridge, holds a Home Office sponsor licence covering 2 routes: Global Business Mobility: Senior or Specialist Worker and Skilled Worker. It has been on the register since at least 2026. Its rating on the register is Worker (A rating).
Companies House lists it as Sifive UK Ltd, number 13756823, incorporated 2021: 4 years of filings behind the name. Registered office: 114 St Martin's Lane, Covent Garden, London, WC2N 4BE, WC2N 4BE. Its filed activity puts it in it, software and media.
What the licence tells a candidate is that the door is not locked. Whether it is open this month is a question for SiFive UK Ltd's own careers page and the job boards, and the answer changes with the season and the order book.