The register
Retn Ltd, London, holds a Home Office sponsor licence on the Skilled Worker route, and has been on the register since at least 2026. Rating on the current register: Worker (A rating).
At Companies House the business is Retn Ltd (company number 04774262), a private limited company incorporated in 2003, 23 years ago. Registered office: 5 Greenwich View Place, London, E14 9NN, E14 9NN. 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.