The register
The register lists Natrio UK Ltd 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).
Companies House lists the business as Natrio UK Limited, company number 16758045, a private limited company. The registered office is at Niddry Lodge, 51 Holland Street Office 4, London, W8 7JB, W8 7JB. Its filed activity puts it in wholesale.
Holding a licence is the expensive, slow part done. For Natrio UK Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.