The register
The register lists Rainforest Foundation UK 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).
At Companies House the business is Rainforest Foundation UK (company number 07391285), a company limited by guarantee incorporated in 2010, 16 years ago. The registered office is at Suite 201, Pill Box Studios,, 115 Coventry Road, London, E2 6GG, E2 6GG. Its filed activity puts it in professional and technical services. It has traded under other names before, including The Rainforest Foundation (UK).
Holding a licence is the expensive, slow part done. For Rainforest Foundation UK the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.