The register
The register lists Isoline Communications Limited in London 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).
Isoline Communications Limited is the registered name (Companies House number 09711628), a private limited company on the register since 2015. The registered office is at 12 Bournemouth Road, London, SW19 3AP, SW19 3AP. 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.