SmartCitiesWorld Summit takes place
during London Climate Action Week
Cities Climate Action
Urban Resilience
Smart City Innovation
Bringing cities together to inspire climate action
Where city leaders and innovators meet to accelerate urban climate action
60+ Speakers and 2500+ Delegates
Urban climate action solutions for a sustainable future
3,000+
IN-PERSON AND
VIRTUAL DELEGATES
100+
COUNTRIES
REPRESENTED
1,000+
CITY AND LOCAL
AUTHORITIES LEADERS
90+
EXPERT
SPEAKERS
SmartCitiesWorld Summit 2026 is the premier global forum for city leaders, innovators, and partners driving the future of urban climate action, resilience, and digital transformation. The Summit provides a unique, multidisciplinary space for senior urban practitioners to collaborate, share insights, and accelerate impactful solutions, bringing together more than 3,000 delegates – including representatives from over 1,000 cities and local authorities worldwide.
Evolution of the Summit
Building on three years of growth and global impact, the Cities Climate Action Summit evolves in 2026 to become the SmartCitiesWorld Summit – an expanded, elevated forum uniting city leaders, innovators, and industry partners to accelerate climate action, resilience, and urban innovation.
The Summit Themes
Climate Action
Delivering city-scale pathways to net zero
across energy, mobility, and the built
environment.
Urban Resilience
How cities can strengthen infrastructure and services to withstand a range of shocks, stresses and disruptions.
Smart City Innovation
Adopting and scaling digital technologies that fill resource gaps and improve services, efficiency and resident outcomes.
Key statistics from 2025
3,081
total
delegates
101
countries
represented
834
cities/local
authorities
384
VIP in-person
delegates
30+
sessions &
panels
20+
hours of
networking
42
journalists
attended
Networking
Roundtables
Keynotes
Panel Discussions
Exhibition
In this two-day event (one virtual, one in-person) you can be part of the conversation that will drive impactful change. You'll gain insights to develop strategies to building a smart, resilient city that addresses climate change, while considering liveability, equity, and long-term sustainability.
Held during London Climate Action Week, you'll hear from world class, international city leaders and climate experts. You'll be able to engage in dynamic discussions through exclusive roundtables, acquire valuable perspectives from thought-provoking panel debates, and enjoy intimate fireside chats with industry pioneers.
Industry leaders in attendance
Serena McIlwain
Greg Jackson CBE
Mete Coban MBE
Cllr Susan Aitken
Emma Howard Boyd CBE
Eleni Myrivili
James Nowlan
They say it best
“It’s incredible to see so many people in the room – businesses, innovators, cities, those on the front line that are delivering for a fairer and greener London. I think through conversations [like today] we can come up with the solutions.”
Mete Coban MBE
Deputy Mayor for Environment and Energy, Greater London Authority.
“Events like this that bring together voices in solidarity around the need for climate action – the urgent need for stepping up climate action – are absolutely vital.”
Susan Aitken
Leader, Glasgow City Council
“Coming here for the first time, I was overwhelmed by the conversations, the rich keynotes, the roundtables and panels – and the energy, innovation and transparency from the companies and speakers. It was uplifting and gave me more energy than I had.”
Serena McIlwain
Secretary, Maryland Department of Environment
“The collection of people you have in London is off the charts – all learning from each other, all using their examples to inspire other cities and partners to take action. it's great to see the momentum building.”
Cassie Sutherland
MD for Climate Solutions & Networks, C40 Cities
Who registered for 2025?
Over 3,000 delegates signed up for this years' Summit and were surrounded with a global audience of climate, technology, finance, policy, and smart city professionals to teach and hear the latest in climate advancements.
Take a look below at just some of our delegation...
The Time for Action is Now
"This event is a powerful testament to the collective determination of cities worldwide to address the urgent challenges of climate change. The summit provided a unique platform for thought leaders, innovators, and policymakers to come together."
Jaromir Beranek, Chairman of International Relations and EU Funds, City of Prague
Partners
Our ground-breaking Report:
Our ground-breaking Cities Climate Action Trend Report lays the foundation for this event - which analyses 200 cities’ targets, actions and priorities in the fight against climate change. We also build on the work achieved through the SmartCitiesWorld COP26 Charter alongside our recent Cities Climate Action Panel Discussion
Our world-class speakers make the case for a new climate imperative. Our audience provides the network to mobilise best practices for cities worldwide.
Just some of the quotes that City Halls gave us:
"Cities shouldn’t wait for a new optimal technology to emerge in the future to get started because there are already so many ways to get started off the shelf."
Björn Hugosson, Chief Climate Officer, City of Stockholm
"The importance is working with other levels of government, communities and the private
sector as we just can’t do it alone."
Lord Mayor Sally Capp, City of Melbourne
What is unique about the Cities Climate Action Summit?
Different from traditional city events, the Summit seeks to uncover tangible solutions—you will see and hear the latest from leading policymakers, technologists and financiers to learn what is working and what is not working.
The Summit will provide a holistic view of how urban climate action can be achieved at scale.
Why host the Cities Climate Action Summit?
Experts across the globe from the World Bank to the World Economic Forum estimate investment needed to combat the climate crisis surpasses US$90 trillion by 2030.
And cities are at the crossroad for this investment! The Summit will focus on the policy, the finance and the technology to make these investments wisely—to inform city leaders so they can work to serve and protect their citizens
Contact us
© 2025 SmartCitiesWorld
Smart Cities World Ltd, 27 Clements Lane, London, EC4N 7AE