The register
Birchtree Sullivan Limited, London, holds a Home Office sponsor licence on the Skilled Worker route, and has been on the register since at least 2026. The register records its rating as Worker (A rating).
Birchtree Sullivan Limited is the registered name (Companies House number 08142063), a private limited company on the register since 2012. The registered office is at Unit 301, Lock Studios 7 Corsican Square, London, E3 3YD, E3 3YD. By its SIC codes the business is in professional and technical services.
For a candidate this means one less obstacle: Birchtree Sullivan Limited already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.