The register
QuantrolOx Ltd, Oxford, holds a Home Office sponsor licence on the Skilled Worker route, and has been on the register since at least 2026. Its rating on the register is Worker (A rating).
Companies House lists it as Quantrolox Limited, number 13529974, incorporated 2021: 5 years of filings behind the name. The registered office is at 8 King Edward Street, Oxford, OX1 4HL, OX1 4HL. By its SIC codes the business is in it, software and media.
Holding a licence is the expensive, slow part done. For QuantrolOx Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.