The register
The register lists OneStock Software 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).
At Companies House the business is Onestock Software Ltd (company number 13658160), a private limited company incorporated in 2021, 5 years ago. The registered office is at Becket House, 1 Lambeth Palace Road, London, SE1 7EU, SE1 7EU. By its SIC codes the business is in it, software and media.
For a candidate this means one less obstacle: OneStock Software Ltd already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.