The register
The register lists Puratos Limited in Buckingham, Bucks 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).
At Companies House the business is Puratos Limited (company number 00949175), a private limited company incorporated in 1969, 57 years ago. Registered office: Buckingham Industrial Park, Buckingham, MK18 1XT, MK18 1XT. By its SIC codes the business is in food and drink manufacturing. It has traded under other names before, including Essaress Puratos Limited, Essaress Foods Limited.
For a candidate this means one less obstacle: Puratos Limited already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.