The register
The register lists Celfocus Ltd in London 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 Celfocus Ltd (company number 09906360), a private limited company incorporated in 2015, 10 years ago. The registered office is at 7 Albemarle Street, London, W1S 4HQ, W1S 4HQ. By its SIC codes the business is in it, software and media.
Holding a licence is the expensive, slow part done. For Celfocus Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.