The register
Keystone Europe Limited, London, holds a Home Office sponsor licence covering 2 routes: Skilled Worker and Global Business Mobility: Senior or Specialist Worker. It has been on the register since at least 2026. The register records its rating as Worker (A rating).
At Companies House the business is Keystone Europe Limited (company number 14193688), a private limited company incorporated in 2022, 4 years ago. Registered office: 26 Throgmorton Street, 1st Floor, London, EC2N 2AN, EC2N 2AN. Its filed activity puts it in professional and technical services.
What the licence tells a candidate is that the door is not locked. Whether it is open this month is a question for Keystone Europe Limited's own careers page and the job boards, and the answer changes with the season and the order book.