Currently chairs the World Endoscopy Organisation (WEO) Research committee and sits in the British Society of Gastroenterology (BSG) Endoscopy Research steering group. He is Fellow of the Royal College of Physicians of London and Edinburgh. Conferred Fellow of The American Society of Gastrointestinal Endoscopy (FASGE) and Japan Gastroenterological Endoscopy Society (FJGES). He is member of the BSG, ASGE, ESGE and conferred honorary member of the South African GI Society. He has served as the BSG International Secretary 2014-18, Treasurer BSG Endoscopy committee 2016-19, advisor for National Institute of Clinical Excellence (NICE) interventional procedures subgroup and independent external advisor for the Welsh National Bowel Cancer screening programme complex polyp MDT. Professor Ragunath served as a core member and co-director of the International Working Group on Classification of Oesophagitis (IWGCO) Board 2014-18. His clinical and research interests include advanced endoscopic imaging of the GI Tract, in particular Barrett’s oesophagus and minimally invasive endoscopic therapy of early GI neoplasia. He has co-edited the BSG Barrett's oesophagus guidelines, guidelines for the management of gastric premalignant conditions and UK oesophageal dilatation guidelines. Has authored / co-authored 150 peer reviewed publications and text book chapters. He is Associate Editor of “Digestive Endoscopy” journal, member of the Editorial Board for 'Endoscopy', 'Gastrointestinal Endoscopy', Gastrointestinal Nursing, ‘Translational Gastroenterology & Hepatology’ journals. He was the recipient of the BSG Hopkins Endoscopy Prize 2010. He has performed several live endoscopy demonstrations, endoscopy training in animal models and has lectured in national and international meetings. He delivered the RCP Edinburgh, Professor Anne Ferguson lecture and recipient of the medal, 2017.