The register
The register lists Zaks IT Ltd 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 Zaks IT Limited (company number 08067026), a private limited company incorporated in 2012, 14 years ago. Registered office: 14 -16 Dowgate Hill, London, EC4R 2SU, EC4R 2SU. Its filed activity puts it in other services.
What the licence tells a candidate is that the door is not locked. Whether it is open this month is a question for Zaks IT Ltd's own careers page and the job boards, and the answer changes with the season and the order book.