The register
The register lists Cairn technology Ltd in Sheffield, South Yorkshire 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).
At Companies House the business is Cairn Technology Limited (company number 03715724), a private limited company incorporated in 1999, 27 years ago. The registered office is at G4 Business Centre, 19-21 Carlisle Street East, Sheffield, South Yorkshire, S4 7QN, S4 7QN. By its SIC codes the business is in professional and technical services. It has traded under other names before, including Cleverquest Limited.
What the licence tells a candidate is that the door is not locked. Whether it is open this month is a question for Cairn technology Ltd's own careers page and the job boards, and the answer changes with the season and the order book.