Bloomberg Philanthropies Mayors Challenge
Bloomberg Philanthropies · New York, NY, USA (Bloomberg Philanthropies)
AG Process Grade
Grade A See the Award rubric →The Mayors Challenge is a free-to-enter, philanthropically funded competition for city governments, run by Bloomberg Philanthropies since 2012 across six rounds. The 2025-26 round drew over 630 applicant cities from 20 countries, narrowed to 50 funded finalists and then 24 winners (~4% winner rate), each receiving $1 million plus technical/staff support. Judging criteria and process are published, and the 2025-26 advisory committee is named individually. No entry fee, post-win fee, or purchase requirement was found in any official source. Past winners across all rounds are publicly listed, and no controversy or misleading-marketing allegations surfaced in research.
Founded 2012 · Bloomberg Philanthropies · HQ New York, NY, USA (Bloomberg Philanthropies) · Social Impact & Nonprofit · Entry Free
The Mayors Challenge is a recurring global competition run by Bloomberg Philanthropies that invites mayors of eligible cities to submit innovative, resident-facing government solutions; winning cities receive $1 million each in implementation funding plus technical assistance. It launched in 2012 as a US-only competition and has since run six rounds, most recently awarding 24 winners from over 630 applicants across 20 countries.
Profile data
| Organizer | Bloomberg Philanthropies |
| Location | New York, NY, USA (Bloomberg Philanthropies) |
| Entry fee | Free |
| Cost to receive award | None documented, no mandatory fees found to claim or use the $1M grant |
| Winner rate | ~4% (24 winners of 630+ applicants, 2025-26 round; 50 of 630 advanced to finalist stage) |
| Selection authority | Juried |
| Data confidence | ● Fully documented |
| Official site | https://www.bloomberg.org/government-innovation/spurring-innovation-in-cities/mayors-challenge/(nofollow) |
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