The register
The register lists Effection 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).
Companies House lists it as Effection Limited, number 08898715, incorporated 2014: 12 years of filings behind the name. Registered office: 101 New Cavendish Street, 1st Floor South, London, W1W 6XH, W1W 6XH. 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.