The register
The register lists Safetell in Dartford, Select state... 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).
Safetell Limited is the registered name (Companies House number 02408884), a private limited company on the register since 1989. The registered office is at Unit 46, Fawkes Avenue, Dartford, Kent, DA1 1JQ, DA1 1JQ. By its SIC codes the business is in manufacturing and engineering. It has traded under other names before, including Braycourt Limited.
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.