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.

Integrating equity measures in urban air quality policies to deliver benefits fairly: Support for Clean Air Network Technical Working Group

Deadline: August 8, 2025 at 5:00pm (EST)

Accelerating Heat-Health Action in Cities Incubator: Enhancing Heat-Health Resilience in Freetown

Deadline: August 10, 2025 at 9:00pm (GMT)

Innovative E-Bus Procurement Models in South Africa

Deadline: August 15, 2025 at 5:00pm (SAST)

Breathe Cities Data Knowledge Product: Strength in numbers: how cities are using data to unlock ambitious clean air action

Deadline: August 18, 2025 at 5:00pm (EDT)

Dar es Salaam Air Quality Monitoring and Management

Deadline: August 21, 2025 at 11:59pm (GMT)

Consultoría para elaborar una Guía de Intervención en parques de proximidad e implementar acciones de urbanismo táctico en el marco del Plan de Intervención para el Mejoramiento Integral del Hábitat (PIMI) de Bosa, en Bogotá, Colombia

Fecha límite de presentación de propuestas: 25 de agosto de 2025 a las 18:00 hrs COT (Hora de Colombia).

Air Quality, Health Exposure, and Impact Assessment for Addis Ababa City

Deadline: September 9, 2025 at 11:59pm (GMT)

View job openings at C40 Cities