The register
The register lists Imison & Co in London 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).
Companies House lists it as Imison Limited, number 05900709, incorporated 2006: 20 years of filings behind the name. Registered office: 26-28 Bedford Row, London, WC1R 4HE, WC1R 4HE. By its SIC codes the business is in mining and quarrying.
For a candidate this means one less obstacle: Imison & Co already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.