The register
The register lists MXP Prime Platform Ltd T/A SellerX in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Its rating on the register is Worker (A rating).
Companies House lists it as Mxp Prime Platform Ltd, number 13129199, incorporated 2021: 5 years of filings behind the name. Registered office: 125 Kingsway, London, Greater London, WC2B 6NH, WC2B 6NH. By its SIC codes the business is in retail.
For a candidate this means one less obstacle: MXP Prime Platform Ltd T/A SellerX already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.