Liesbeth Casier

Lead, Public Procurement and Sustainable Infrastructure and Coordinator of the NBI Global Resource Centre

Liesbeth leads IISD's work on sustainable public procurement with the Infrastructure & Finance team, within the Economic, Law and Policy program. She has more than 8 years of expertise in public procurement and sustainable development and heads our research and advisory work with governments for using public procurement strategically to deliver on the Sustainable Development Goals. Liesbeth also provides training on green and sustainable public procurement, including as part of the International Master in Public Procurement at the University of Tor Vergata and the University of Belgrade. She represents IISD at the OECD Working Group on Leading Practitioners on Public Procurement.

Additionally, Liesbeth works as Coordinator of the Nature-Based Infrastructure (NBI) Global Resource Centre, where she works with the Sustainable Asset Valuation (SAVi) methodology to make the case for investing in nature. In this capacity, she has been building new partnerships with national governments, cities, CSOs, IFIs and project developers to plan, procure, value, finance and implement NBI projects.

Previously, Liesbeth worked with UN Environment Program and started her career as consultant in auditing and corporate finance with a family-owned consultancy business in Belgium.

Liesbeth has an academic background in political science, law and sustainable development. She holds a master’s degree in development studies from the Graduate Institute of International and Development Studies (Geneva, Switzerland). She also has master’s degrees in complementary studies in business economics and in political science, both from the University of Ghent (Belgium), a bachelor of political science from the University of Antwerp (Belgium), and a bachelor of laws from the University of London (United Kingdom).

Liesbeth works in Dutch, English, French, and Spanish.

Contact details

Additional information

Areas of expertise
Public Procurement
Governance and Multilateral Agreements
Green Economy Strategies
International Economic Governance
Staff type
Bachelor of Laws, University of London (United Kingdom), 2019
Master of Development Studies, Graduate Institute of International and Development Studies (Switzerland), 2013
Master of Complementary Studies in Business Economics, University of Ghent (Belgium), 2010
Master of Political Science, University of Ghent (Belgium), 2009
Bachelor of Political Science, University of Antwerp (Belgium), 2008
Languages spoken
Dutch, English, French, Spanish