The register
The register lists Side By Side (children) Limited 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).
Side by Side (children) Limited is the registered name (Companies House number 06962081), a company limited by guarantee on the register since 2009. The registered office is at Avigdor Mews, Lordship Road, London, N16 0QJ, N16 0QJ. By its SIC codes the business is in education.
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.