The register
The register lists Treis Partners Advisory Limited in London as a licensed sponsor on Skilled Worker and Global Business Mobility: Senior or Specialist Worker, 2 routes in all, and has done since at least 2026. The register records its rating as Worker (A rating).
Companies House lists it as Treis Partners Advisory Limited, number 10154299, incorporated 2016: 10 years of filings behind the name. The registered office is at 101 New Cavendish Street, 1st Floor South, London, London, W1W 6XH, W1W 6XH. By its SIC codes the business is in finance and insurance.
Holding a licence is the expensive, slow part done. For Treis Partners Advisory Limited the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.