The register
The register lists Netcel in St. Albans 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 Netcel Limited (company number 03112961), a private limited company incorporated in 1995, 31 years ago. The registered office is at International House, 36-38 Cornhill, London, EC3V 3NG, EC3V 3NG. Its filed activity puts it in it, software and media.
What the licence tells a candidate is that the door is not locked. Whether it is open this month is a question for Netcel's own careers page and the job boards, and the answer changes with the season and the order book.