Xayn (now Noxtua) — Xayn is a Berlin-based AI company founded in 2017 as XAIN out of research by Dr. Leif-Nissen Lundbaek and Prof. Michael Huth at Oxford and Imperial College London. Rebranded to Xayn in 2020, it built the Xaynet privacy-preserving federated learning framework and a privacy-protecting search and discovery engine. - View it on GitHub