The register
The register lists ShareChat UK Private Limited in London, England 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 Sharechat UK Private Limited, number 14010869, incorporated 2022: 4 years of filings behind the name. The registered office is at 6th Floor 9 Appold Street, London, EC2A 2AP, EC2A 2AP. By its SIC codes the business is in business services.
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.