The register
The register lists Envirisk Ltd in Rotherham as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
At Companies House the business is Envirisk Ltd (company number 12884536), a private limited company incorporated in 2020, 6 years ago. The registered office is at Fusion At Magna, Magna Way, Rotherham, S60 1FE, S60 1FE. By its SIC codes the business is in professional and technical services.
A licence says an organisation may sponsor; it does not say it is hiring today. The way to find out is the same as for any employer: the careers page, the job boards, and a direct approach with a UK-style CV that says early that sponsorship would be needed.