Dr David Rubens is CEO of the Deltar Group and Executive Director of the Institute of Strategic Risk Management (ISRM), which he founded in 2018. He is a recognised authority on the strategic management of complex events, particularly within a multi-agency crisis management framework.

David holds a doctorate in security and risk management from the University of Portsmouth (2015), writing his thesis on alternative command & control frameworks for strategic management and critical decision-making in complex crisis environments. He has been a Visiting Lecturer and Dissertation Supervisor on the Leicester University ‘Security, Policing and Terrorism’ MSc programme, and a Visiting Lecturer on the Strategic Leadership programme at Cranfield University, where he lectured on terrorism and public policy, and strategic management of complex operations. He is currently a Professor in the United Nations University European Centre for Peace and Development, where he leads the Strategic Risk and Crisis Management programme, and is a Visiting Lecturer on the International Security Management Masters programme at the Berlin School of Economics and Law.

David contributed to the UK Critical Infrastructure Resilience Executive Steering Committee as a Subject Matter Expert for the strategic management of complex crisis management and was a founding member of the London Resilience Gold Command Crisis Management Project Academic Advisory Group. He is currently a member of the UK National Preparedness Commission and on the Advisory Board of numerous organisations. Dr David Rubens was voted the IFSEC No 1 Global Security Thought Leader of 2019.