The register
FundOnion Limited, London, 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 Fundonion Limited, number 12743839, incorporated 2020: 6 years of filings behind the name. The registered office is at 44 - 48 Paul Street, London, EC2A 4LB, EC2A 4LB. By its SIC codes the business is in finance and insurance.
A licence says an organisation may sponsor; it does not say it is hiring today. The way to find out is the same as for any employer: the careers page, the job boards, and a direct approach with a UK-style CV that says early that sponsorship would be needed.