The Society awards Honorary Membership to Dan Martin, Steve Mathieu, Marlies Ostermann and Manu Shankar-Hari

Professor Daniel Martin has made a significant contribution to intensive care medicine in the UK and internationally. He served as Editor in Chief of the Journal of the Intensive Care Society (JICS) from 2018 to 2026, overseeing a period of substantial development for the journal. 

During this time, he managed more than 2,200 submissions and personally undertook over 140 peer reviews. During the COVID-19 pandemic, he guided JICS through the process of obtaining PubMed accreditation and securing its first Impact Factor, strengthening the journal's international profile. 

Dan also broadened the Editorial Board, increasing multiprofessional representation and helping shape a more inclusive and academically ambitious publication. His work has strengthened the academic foundations of the specialty and supported the visibility of UK critical care research. 

Professor Martin’s contribution extends far beyond JICS. He has strengthened the academic foundations of our specialty, championed multiprofessional collaboration, and ensured that UK critical care is recognised globally. 

Dr Steve Mathieu has made major contributions to the Intensive Care Society and intensive care medicine. Over many years he has served as an elected Council Member, Congress Director for State of the Art, Honorary Treasurer and President from 2023 to 2025. 

Beyond the Society, Steve is widely known as co-founder and senior editor of The Bottom Line, which has helped clinicians engage with emerging evidence and evidence-based practice. 

As President, he led the Society through a challenging post-pandemic period and represented the multiprofessional intensive care community during the UK COVID Inquiry. Through his work, he helped ensure that the perspectives of patients, families and critical care teams were reflected in national conversation about the pandemic. Throughout his various roles, he has set an example as a calm, thoughtful and respected leader.

Throughout her career, Marlies Ostermann has established herself as one of the leading figures in intensive care and renal medicine. After training in Göttingen, she moved to the UK and pursued dual specialisation in intensive care and renal medicine. 

Since her appointment as a Consultant at Guy's and St Thomas' in 2005, she has combined clinical practice with research, leadership, teaching and mentorship. She co-directed one of the UK's largest ICUs and ECMO centres during COVID-19, became Professor of Intensive Care Medicine at King's College London, and led major international initiatives including the KDIGO Acute Kidney Injury guidelines. She recently became the first woman elected President of the European Society of Intensive Care Medicine. Marlies has held pivotal roles in the Society, including Research Director, Council Member, Divisional Chair for Standards & Guidelines, and Deputy Chair for the Consultant Intensivists Professional Advisory Group.  

Her research output includes more than 600 publications and over 50,000 citations, while her collaborative approach has helped support researchers across the specialty.  

In a digital age where it’s all too common to forget the human touch, it’s common for Marlies’ friends and colleagues to receive hand-written notes by post, celebrating or congratulating them for events they had no idea she had become aware of. 

Professor Manu Shankar-Hari is Chair of Critical Care Medicine and Director of the Centre for Critical Illness Research at King's College London, and a Consultant in Intensive Care Medicine at Guy's and St Thomas' NHS Foundation Trust. 

An internationally recognised researcher, his work has advanced understanding of sepsis and critical illness. He was lead author of the study underpinning the Sepsis-3 definitions, helping to redefine how sepsis is diagnosed worldwide, and played key roles in REMAP-CAP and GenOMICC, helping improve understanding of severe COVID-19 and informing treatment strategies for critically ill patients. 

As Director of Research for the Intensive Care Society, he has supported the development of critical care research and future clinician scientists. He continues this work through leadership of the TRAITS Programme and as Chair of the Lancet Commission on Sepsis.