The register
The register lists New Quadrant Partners Limited 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).
At Companies House the business is New Quadrant Partners Limited (company number 07179875), a private limited company incorporated in 2010, 16 years ago. The registered office is at 25 Bury Street, St. James's, London, SW1Y 6AL, SW1Y 6AL. By its SIC codes the business is in professional and technical services. It has traded under other names before, including New Quadrant Management Limited, New Square Management Limited.
Holding a licence is the expensive, slow part done. For New Quadrant Partners Limited the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.