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C40 Cities Climate Leadership

Registered charity 1173124, on the register since 22 May 2017. The 1,097th largest charity in England and Wales by income.

What it says it does

C40 is a global network of nearly 100 mayors of the world's leading cities that are united in action to confront the climate crisis and create a future where everyone, everywhere can thrive.

In the charity's own words, as filed with the Charity Commission.

Its causes

Education/trainingEnvironment/conservation/heritageGeneral Charitable Purposes

Where it works

It names no single council area: it works across England and Wales, or further.

Check it yourself

Its entry on the Charity Commission register · its own website

Figures are the latest the charity has reported to the Charity Commission, current to 27 September 2026. How this site works.