Professor Jonathan Grigg is one of the UK’s top paediatricians and an international leader in paediatric respiratory research. Since 2003, he has obtained over £11M in research grants as PI and co-applicant from MRC, NIHR, DH and charities. These funds supported air pollution and asthma research with national and international impact. He is the lead paediatrician for government advice on air pollution and children’s health as a member of the Committee on the Medical Effects of Air Pollution, and provides ad hoc advice on respiratory toxicity to the Committee on Carcinogens. He co-chairs the Royal College of Physicians Committee into “air pollution throughout the life course”. In leading the national paediatric research agenda, he organises all paediatric input into British Thoracic Society’s meetings, and as elected secretary to the Royal College Paediatrics and Child Health’s Academic Board, organises its Annual Meeting. He develops national research priorities in paediatric respiratory medicine as Chair of the British Paediatric Respiratory Society, ex chair and, now member, of the Clinical Study Group (Respiratory) for the Medicines for Children network, NIHR Programme Grant Experts Panel. He leads on paediatric respiratory infection and immunology as elected chair of this group in the European Respiratory Society. Nationally, he evaluates the cost effectiveness of therapies, as the paediatric lead of NICE Appraisal Panel A, and is an RCPCH-appointed expert adviser on asthma therapies to other appraisal panels. Locally, he leads on paediatric non-medicines research in NE London as regional LCRN representative to the national committee, and supports academic training as the RCPCH regional academic advisor.