Dr. Leena Hoffmann is the co-founder and President of Luxembourg for Transparency (L4T) asbl. A dedicated anti-corruption researcher, she serves on the International Council of Transparency International - the global movement against corruption, is a non-resident Associate Fellow at Chatham House - the London-based international think tank, and an Honorary Senior Fellow at the Global Evergreening Alliance.

Leena began her career as an investigator at Nigeria’s anti-corruption agency, specialising in high-level corruption cases involving politically exposed persons (PEPs). With over 15 years of experience as a research consultant and public policy advisor, she has promoted accountable governance and supported innovative anti-corruption initiatives through her research, analysis, and evidence-sharing. At Chatham House, Leena led the Africa Programme's biggest and longest-running project which focused on social norms and corruption. Her interests particularly focus on how norms and networks influence corruption dynamics and how public disapproval can be harnessed for anti-corruption efforts.

Leena’s perspective is profoundly shaped by her personal understanding of the devastating impacts of corruption on individuals and the institutions intended to safeguard their wellbeing and dignity. This conviction drives her work. Her background encompasses pioneering studies on collective behaviour and norms, conducting thorough policy analyses, and fostering strong relationships with stakeholders at all levels. She has consulted for numerous international organisations, including Chatham House, the OECD, the World Bank, the US State Department, the World Food Programme, the UK FCDO and the John D. and Catherine T. MacArthur Foundation. Additionally, she has contributed to articles for Bloomberg, Deutsche Welle, The Economist, Newsweek, and Al Jazeera.

Leena began visiting Luxembourg regularly in 2004, and during an Easter visit in 2012, she experienced an epiphany while running in Muesbierg Forest. In 2013, she moved to Luxembourg from the UK with her family to accept a two-year AFR postdoctoral grant from the National Research Fund, joining the Luxembourg Institute of Socio-Economic Research (LISER) as a Marie Curie Fellow.

At L4T, she leverages her understanding of the structural and social conditions that fuel corruption to advocate for practical and effective strategies to combat it. She has a forthcoming co-authored chapter in the Second Edition of the Routledge Handbook of Political Corruption titled "Corruption, Norms and Institutions: A Synthesized Framework for Understanding Systemic Illicit Behavior."