The register
The register lists My London Plumbers Ltd in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
MY London Plumbers Ltd is the registered name (Companies House number 11995670), a private limited company on the register since 2019. The registered office is at 17 A/B Gilbey Road, London, SW17 0QQ, SW17 0QQ. By its SIC codes the business is in construction.
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.