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.

Progetto di urbanistica tattica nel quartiere Spinaceto (Municipio IX)

Scadenza per la ricezione delle offerte: 5 dicembre 2025, ore 17:00 CET

Breathe Cities Knowledge Product: A seat at the table: centering communities in clean air decision making

Deadline: 5pm (EST) on Thursday, 11 December, 2025

Research and Analysis on Fossil Fuel Advertising Restrictions in Europe

Deadline: 5pm (EST) on Friday, 12 December, 2025

C40 Climate [Finance] Links program

Deadline: 5pm (EST) on Friday, 12 December, 2025

Technical Study: Sustainable Advertising Policy and Revenue Strategy for Public Transport Networks

Deadline: 5pm (EST) on Monday, 15 December, 2025

Technical Consultancy Support to integrate Climate Action into the Master Planning Process of a Tier 3 city in Tamil Nadu

Deadline: 11:59 pm (IST) on Sunday, 21 December, 2025

Technical Consultancy Support for developing a Local Area Plan (LAP) and a Neighbourhood-level Pilot in Chennai

Deadline: 11:59 pm (IST) on Sunday, 21 December, 2025

View job openings at C40 Cities