At Bloomberg CityLab 2026 in Madrid, we brought together the mayors and municipal officials — alongside policymakers, innovators, and creatives — delivering results for residents across the globe to push progress further, faster together.🌎

Bloomberg Philanthropies and the Aspen Institute brought mayors, policymakers, and urban innovators from around the world to Madrid for Bloomberg CityLab 2026 to strengthen global cooperation and share practical, city-led solutions to today’s biggest challenges.

This year’s summit built on Bloomberg Philanthropies’ partnership with the City of Madrid under Mayor José Luis Martínez-Almeida and its growing work to strengthen local government leadership and capacity across Europe.

For more than a decade, Bloomberg CityLab has convened influential mayors and global leaders to exchange ideas, share what works, and shape solutions with impact far beyond city limits.