Nathan is a medical and life-science entrepreneur with 24 years of experience and 13 years of experience as an executive board director (legally responsible and not just a title). Nathan created and has led an online global oncology network for 15 years with over 45,000 members. He is currently the Chairman of the Fratrem Group Ltd, which operates multiple ventures. His past executive experience includes CEO at Gamlen Tableting Ltd (Pharmaceuticals), Managing Director of Sanyal Bio LLC (Liver disease), CEO of Neuro-Bio Ltd (Neuroscience), CEO of Oncology Pharma Ltd (Market research company), and Managing partner of LifeScience Ventures Ltd (Healthcare Venture Capital). Before leading companies, Nathan worked in commercial roles for Bayer Diagnostics and Takeda Pharmaceuticals, where he started his career.