Tech Challenge 2019

The first edition of the Tech Challenge took place across 2018 and 2019. It was launched at our Global Climate Action Summit in San Francisco in September 2018. It was hosted by the cities of Paris and Tel Aviv-Yafo, who committed to piloting the winners' solutions.

The Women4Climate Tech Challenge addresses three issues that are high on our municipal agenda: the Environment; Women's Entrepreneurship; and Promoting Technology.
Ron Huldai, Mayor of Tel Aviv-Yafo

We received 105 applications, which got rated by a team of C40 experts. The 26 best applications were submitted to an external expert jury, who selected ten finalists in December.

The finalists pitched their projects to a panel of mayors and senior city officials in Paris on 20th February, ahead of the annual Women4Climate Conference. The winners chosen by this panel, Elodie Grimoin, co-founder of Urban Canopee and Inna Braverman, founder of Eco Wave Power, are now receiving assistance from C40, our partners and cities in the next phase of experimentation and implementation.

I look forward to seeing the projects being developed and deployed here in Paris and in Tel Aviv- Yafo. Women entrepreneurs and tech innovators are leading the way in creating the future that we want and the future we can trust in.
Anne Hidalgo, Mayor of Paris and Chair of C40 Cities

They support us




Orli Ronen

Head of Innovation and Sustainability, Tel Aviv-Yafo

Monica Barone

CEO, City of Sydney

Anni Sinnemäki

Deputy Mayor for Urban Environment, Helsinki

Katarina Luhr

Vice Mayor for Environment, Stockholm

Celia Blauel

Deputy Mayor of Paris in charge of Ecological transition, Climate, Environment, Water and Sanitation

Karla Rubilar

Intendente, Santiago

Fernando Medina

Mayor of Lisbon

Vi Lyles

Mayor of Charlotte

Veronica Arias

Secretaria de Ambiente, Quito



Taj Ahmad-Eldridge

Senior Director of Investment, Los Angeles Cleantech Incubator

Kevin Austin

Deputy Executive Director, C40 Cities

Allyson Kapin

Co-Founder of Rad Campaign and Founder of Women Who Tech

Christian Vanizette

Co-founder of

Shana Krakowski

Manager of the Platform

Albane Godard

Head of Urban Lab, Paris&Co

Salima Maloufi Talhi

Program Manager, L’Oréal

Karen Weiss

Senior Industry Strategy Manager, Autodesk

Shaina Horowitz

Urban Tech Director, New Lab

Adi Ashkenazi

Project Manager, Green Label for Business, Tel Aviv-Yafo

Sabine Romon

Chief Smart City Officer, City of Paris