The register
The register lists Plu&m 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).
Plu&M Limited is the registered name (Companies House number 09811319), a private limited company on the register since 2015. The registered office is at Level 5a Maple House, 149 Tottenham Court Road, London, W1T 7NF, W1T 7NF. Its filed activity puts it in it, software and media.
For a candidate this means one less obstacle: Plu&m Limited already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.