Work with C40

C40 supports mayors of world-leading cities to implement the bold climate solutions that are needed to secure a healthier and more equitable future for all city residents.

We invite submissions of proposals that help to deliver our diverse projects and activities.

Australia: Couple sitting on field with city skyline in backround — © Jean-Jacques Halans / EyeEm / GettyImages

Requests for Proposals

This web page is updated regularly, so do check in the future for more opportunities to work with C40.

Technical Assistance for Decarbonisation, Energy Transition, IMO Fuel Readiness, and City-Port Collaboration at the Port of Durban

Deadline: March 28th 2025, 11pm GMT

Delivery of sector-specific finance content at CFF Workshops 2025-27

Deadline: March 28th 2025

Development of the eThekwini Organic Waste Strategy and Implementation Plan for Organic Waste Treatment

Deadline: 07 April 2025

Accelerating Electrification of High Mileage Vehicles in Phoenix and Boston

Deadline: April 14, 2025 at 17:00 EST

Shared EV Charging Models in London

Deadline: April 14, 2025 at 17:00 EST

Quantifying the Impact of City-Business Alliances on Food System GHG Emissions and Public Health

Deadline: April 14, 2025 at 11:59 PM GMT

View job openings at C40 Cities