The register
The register lists Denpedia 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 Denpedia Limited (company number 14602070), a private limited company incorporated in 2023, 3 years ago. The registered office is at C/O Eastern Accountants 25 Cabot Square, Canary Wharf, London, E14 4QZ, E14 4QZ. Its filed activity puts it in it, software and media.
Holding a licence is the expensive, slow part done. For Denpedia Limited the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.