The register
The register lists Shields Environmental PLC in South Ockendon, Essex 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 Shields Environmental Limited, number 01444121, incorporated 1979: 47 years of filings behind the name. The registered office is at Unit A Tame Park, Vanguard, Wilnecote, Tamworth, B77 5DY, B77 5DY. Its filed activity puts it in it, software and media. It has traded under other names before, including Shields Environmental PLC, Shields Environmental Limited.
Holding a licence is the expensive, slow part done. For Shields Environmental PLC the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.