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The $9 million global Challenge to help cities move more safely, inclusively, and sustainably.

The 3 host cities

Detroit, Varanasi, and Venice have been selected to host their own City Challenges.

About the Challenge

The Sustainable Cities Challenge will be delivered over two stages.

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Stage 1

Call to cities

We were seeking cities who wish to host City Challenges in 2024 - 2025. Later this year we announced ten shortlisted cities that received a range of capacity building support to help them understand the issue they wanted to solve and attract innovators to provide solutions. By May 2024, we will select three of the ten shortlisted cities to host City Challenges to find solutions for local mobility challenges.

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Stage 2

Call to innovators via 3 City Challenges

We will work closely with the Selected Cities to design and launch three local City Challenges with up to $3 million in funding available for innovators by mid-2024.

Selected Cities will call for entries from innovators via their City Challenge with the support of the Sustainable Cities Challenge team. Together, they will then select their finalists to test their solutions in 2024-2025. In 2025 and beyond, funding will be available for winners in each Selected City to continue to implement and grow their solutions.


Launching a call to cities to host one of three up to $3 million City Challenges to attract innovators to solve their local mobility needs.

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May 2024

3 cities selected to host local City Challenges

Late 2024

Innovator entry deadline

Late 2024

Innovator semi finalists announced

Mid 2025

Innovator finalists announced

Early 2026

Winners announcement


Meet the Partners

Learn more about the Toyota Mobility Foundation and the other Sustainable Cities Challenge Partners.

About Us