Lisbon Sustainability Week is an annual event that brings together global leaders from academia, policy, finance, business, and civil society to advance sustainability through knowledge sharing, collaboration, and action.

The inaugural edition took place in June 2025 at Fundação Calouste Gulbenkian, focusing on Sustainable Finance and the Pricing of Externalities for Sustainable Development, under the motto “Empowering Sustainable Change”. It gathered thought leaders, policymakers, practitioners, and researchers for thought-provoking conferences, dynamic debates, and high-impact networking.

The 2nd edition was held from June 29 to July 2, 2026, at Católica-Lisbon school of business and economics, Santander Center and Beato Innovatioin District, under the theme "Building Sustainability Together." LSW26 featured Nobel Laureate Professor Robert F. Engle alongside over 50 world-renowned speakers, exploring how corporations, financial markets, policy institutions, and society can collectively build pathways toward a fair, balanced, and sustainable future.