The register
The register lists Oxkem Limited in Reading, Berkshire as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. The register records its rating as Worker (A rating).
At Companies House the business is Oxkem Limited (company number 01999503), a private limited company incorporated in 1986, 40 years ago. Registered office: Bernwood House, Holton, Oxford, OX33 1PY, OX33 1PY. Its filed activity puts it in manufacturing. It has traded under other names before, including Kemox (UK) Limited, Firespare Limited.
For a candidate this means one less obstacle: Oxkem Limited already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.