Finalists from 33 countries will receive $50,000 and support to test breakthrough ideas for improving life in cities – In January 2026, 25 winning cities will receive $1 million each to bring their idea to life.
New York, NY – (June 25, 2025) – Bloomberg Philanthropies today announced the 50 finalists of its latest Mayors Challenge, a competition to spur local government innovation that improves lives in cities around the world. The sixth Challenge elevates municipalities that have proposed the boldest ideas to bolster essential municipal services.
From Boise to Belfast, Ansan to Addis Ababa, Toronto to Taipei, the 50 finalists, selected from more than 630 applications, hail from 33 countries and represent over 80 million residents. Their ideas aim to increase public transit ridership, lower household energy costs, expand urban green space, speed service response, strengthen sanitation, improve youth safety, safeguard water supply, and more.
Each finalist city will receive $50,000 to prototype their idea. They will also participate in Bloomberg Philanthropies’ Ideas Camp in July to hone and test their concepts with feedback from experts and fellow peers. In January 2026, the 25 city halls with the most promising ideas will each be awarded $1 million and operational assistance to bring their proposals to life.
“Local government is where people meet policy—and where government improves lives and builds trust,” said James Anderson, who leads the Government Innovation program at Bloomberg Philanthropies. “That’s why municipal innovation isn’t about grand gestures—it’s about solving hard problems under pressure, often with imperfect tools and finite resources. These Mayors Challenge finalists stand out because they’re not just thinking creatively—they’re designing solutions that reckon with the complexity of implementation and the urgency of their residents’ needs. Their proposals reflect a new standard for public sector achievement: ambitious, yes, but also grounded, disciplined, and ripe for real impact.”
The 630 ideas submitted to the Mayors Challenge reflect some of the greatest public service challenges facing cities today—as well as the creativity that animates local governments across the globe. A third of U.S. and Canada applicants, for example, devised solutions addressing housing and shelter. Nearly half of the applicants from Africa proposed upgrades to waste collection and management. One out of five applicants from the Asia-Pacific region focused on cleaner water, air, and infrastructure, and 22 percent of European applicants sought ways to reduce poverty or enhance social inclusion.
The 50 finalist ideas were selected for their originality, potential for impact, and credible vision for delivery. Artificial intelligence was featured in the plans of a number of finalists, including South Bend, Indiana, which envisioned a cutting-edge 311 system that anticipates complaints for non-emergency issues, such as potholes, allowing officials to address problems before a resident report. More analog innovations also rose to the top: In Yonkers, New York, city officials proposed a powerful new hyper-local civic brigade to help older neighbors age happily and healthfully in place.
The 50 finalist cities are:
- Abha, Saudi Arabia
- Addis Ababa, Ethiopia
- Ansan, South Korea
- As-Salt, Jordan
- Barcelona, Spain
- Beaverton, U.S
- Beira, Mozambique
- Belfast, United Kingdom
- Benin City, Nigeria
- Boise, U.S.
- Boston, U.S.
- Budapest, Hungary
- Cap-Haïtien, Haiti
- Cape Town, South Africa
- Cartagena, Colombia
- Cauayan, Philippines
- Choma, Zambia
- Cuenca, Ecuador
- Detroit, U.S.
- Fez, Morocco
- Fukuoka, Japan
- Ghaziabad, India
- Ghent, Belgium
- Greater Visakhapatnam Municipal Corporation, India
- Helsinki, Finland
- Honolulu, U.S.
- Kanifing, Gambia
- Kyiv, Ukraine
- Lafayette, U.S.
- Lower Hutt, New Zealand
- Maceió, Brazil
- Marseille, France
- Medellín, Colombia
- Mexico City, Mexico
- Naga, Philippines
- Ndola, Zambia
- Netanya, Israel
- Nouakchott, Mauritania
- Pasig, Philippines
- Rio de Janeiro, Brazil
- San Francisco, U.S.
- Seattle, U.S.
- Seoul, South Korea
- Sialkot, Pakistan
- South Bend, U.S.
- Surabaya, Indonesia
- Taipei, Taiwan
- Toronto, Canada
- Turku, Finland
- Yonkers, U.S.
In this round of the Bloomberg Philanthropies Mayors Challenge, more funding will be distributed and more cities will be assisted than in the previous five Challenges which each selected between five to 15 winners.
“Local government and mayors’ offices are the beating heart of innovation and change in our urban environments,” said Professor Lesley Lokko OBE, Founder and Chair of the African Futures Institute and 2025 Mayors Challenge advisory committee member. “It has been an honour to join Bloomberg Philanthropies’ advisory committee for the organization’s sixth Mayors Challenge, an initiative dedicated to empowering and supporting city makers around the world. I look forward to working with these 50 finalists as they advance in this extraordinary competition—strengthening their ideas which each represent the inventiveness citizens everywhere should expect from their governments—and the future of what municipal delivery has the power and potential to be.”
“For more than a decade, Bloomberg Philanthropies has provided unprecedented support to drive local government innovation in cities across the country and around the world,” said Admiral Michael G. Mullen, President & CEO of MGM Consulting and 2025 Mayors Challenge advisory committee member. “The organization’s sixth Mayors Challenge will invest in the future of urban delivery from the ground floor of communities—and I am thrilled to join its advisory committee and work with these finalist cities on accelerating their ideas – from safeguarding water supply to carving out community spaces to integrating AI to improve student routes, and more.”
The new Mayors Challenge builds on more than 10 years of work led by Bloomberg Philanthropies to discover, nurture, and drive innovation in cities. The awards to date across five previous rounds of competition have provided 38 winning cities with funding and technical assistance to realize their ideas for addressing civic issues. By supporting the replication of the most successful winning ideas, Bloomberg Philanthropies has expanded the impact of the Mayors Challenge to 337 other cities globally, reaching over 100 million residents around the world.
“Bloomberg Philanthropies has provided invaluable support for cities to develop and implement innovative solutions that improve the lives of residents in ways they can feel,” said Mayor Mike Duggan of Detroit, Michigan. “Detroit is honored to be among the 50 municipalities selected from over 630 applications for the organization’s Mayors Challenge. As a finalist, we will work with renowned experts and peers to advance our proposal to create a powerful, single entry that connects currently scattered information – such as inspection dates, taxes, and utilities – on all 400,000 Detroit properties to revolutionize how owners can access this vital information, as well as how our city plans and provides its most essential services.”
“Seoul is honored to be selected as one of the 50 finalists for the Bloomberg Philanthropies Mayors Challenge competition,” said Mayor Oh Se-hoon of Seoul, South Korea. “As a finalist, we will further our proposal to launch powerful educational campaigns and new support systems that will protect youth safety and prevent online child exploitation through the development of an AI-based mobile app that detects risks and alerts parents – while working alongside other cities to set a new standard for the future of urban policy.”
“City halls deliver the most fundamental public services—from reliable public transport to affordable housing, clean water, sustainable environments, emergency response, and more,” said Mayor Gergely Karácsony of Budapest, Hungary. “Recognizing their potential and reach, the Bloomberg Philanthropies Mayors Challenge rewards and equips those with the most inventive ideas to lead transformations of the essential programs their communities rely on. We are honored that Budapest is one of the 50 finalists selected to further our idea to build a city-run food processing plant that can turn surplus fruits and vegetables from local markets into nutritious meals for schools and senior homes.”
“It is an honor to be selected as a finalist for the Bloomberg Philanthropies Mayors Challenge,” said Mayor Sunita Dayal of Ghaziabad, India. “As we pursue our idea to improve our environment alongside bolstering our workforce – converting organic waste into white rooftop paint and compost to cool homes, green parks, and lower emissions while providing new job opportunities – we have a unique opportunity to incubate innovation that will move our communities forward.”
“Thank you to Bloomberg Philanthropies for seeing our vision to improve the quality of life for seniors across our city,” said Mayor Mike Spano of Yonkers, New York. “We are honored to be among 50 finalists selected for the prestigious global Mayors Challenge competition. As a finalist, we will look to create a fully sustainable model for community engagement – marshaling public and private partners as well as residents and students – coupled with innovative technology and tools to enable many more to age safely and gracefully in place.”
With the expansion of the Bloomberg Cities Idea Exchange, future Mayors Challenge-winning ideas and other locally led solutions supported by Bloomberg Philanthropies will have new potential to scale—serving as models and catalysts for how governments solve problems across the globe.
To learn more about the 50 finalist proposals, visit mayorschallenge.bloomberg.org
About Bloomberg Philanthropies:
Bloomberg Philanthropies invests in 700 cities and 150 countries around the world to ensure better, longer lives for the greatest number of people. The organization focuses on creating lasting change in five key areas: the Arts, Education, Environment, Government Innovation, and Public Health. Bloomberg Philanthropies encompasses all of Michael R. Bloomberg’s giving, including his foundation, corporate, and personal philanthropy as well as Bloomberg Associates, a philanthropic consultancy that advises cities around the world. In 2024, Bloomberg Philanthropies distributed $3.7 billion. For more information, please visit bloomberg.org,
