The register
The register lists En Kassianidis Ltd in Nottingham as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
Companies House lists it as EN Kassianidis Ltd, number 08035949, incorporated 2012: 14 years of filings behind the name. The registered office is at The Old Bank 2 Nottingham Road, Daybrook, Nottingham, NG5 6JQ, NG5 6JQ. Its filed activity puts it in it, software and media.
A licence says an organisation may sponsor; it does not say it is hiring today. The way to find out is the same as for any employer: the careers page, the job boards, and a direct approach with a UK-style CV that says early that sponsorship would be needed.