CLEANTECH VENTURE DAY
PARIS
2 December 2026
The ultimate meeting place for UK and EU innovators, investors, large enterprises and economic development partners to see next generation climate tech solutions and investment opportunities.
Following successful editions in London, Amsterdam and Paris, Cleantech Venture Day continues to strengthen the Climate Tech SuperCluster as Europe’s leading platform for climate innovation, capital and collaboration.
Taking place at Capgemini’s headquarters, this second Paris edition, held on 2 December 2026, will convene a curated audience of startups, venture capital, corporate leaders and public sector partners to explore the technologies shaping Europe’s path to a resilient, low-carbon and resource-secure future. From energy systems and grid innovation to the transformation of the built environment, the focus is on scalable solutions that can accelerate deployment and deliver real impact.
The theme:
Cleantech Venture Day Paris 2026 will focus on building industrial and energy resilience through collaboration across Europe and the UK, with a spotlight on energy systems, industrial water, and advanced materials.
The Paris 2026 edition kicks off the evening before with a reception on 1st December within Step by Pollutec, at the Porte de Versailles, held in partnership with Choose Paris Region and with the support of London & Partners and J A Kemp. An informal gathering featuring a short panel and networking with delegates from across Europe.
A VENUE AT THE HEART OF TECH INNOVATION IN GREATER PARIS
CAPGEMINI HQ
Le 147, quai du Président Roosevelt, 92130 Issy Les Moulineaux
GET THERE BY PUBLIC TRANSPORT
RER C station Val de Seine + 2 minute walk
Bus 126, 323, 290, 189
Metro 12 station Mairie d’Issy + 12 minute walk
Metro 9 Station Billancourt + 9 minute walk
NETWORKING EVENT
Tuesday 1 December
Paris Expo – Porte de Versailles – Hall 1
1 Place de la Porte de Versailles
75015 Paris
STEP by Pollutec, Porte de Versailles
On the evening before Cleantech Venture Day Paris, join us for an exclusive networking reception at STEP by Pollutec, held at Paris Expo, Porte de Versailles, and co-hosted by Choose Paris Region and ClimateTech SuperCluster.
Bringing together key stakeholders from across Europe and beyond, the evening offers a unique opportunity to build early relationships ahead of Cleantech Venture Day, with a focus on cross-border collaboration, investment, and innovation in climate technologies.
Other supporters: London&Partners and J A Kemp.
The perfect way to kick off two days of dialogue, pitches, and partnership-building in Paris.
More than just a map
This isn’t just a nice idea on a map. It’s already one of the world’s most powerful climate tech ecosystems.
What you’re looking at is a collection of some of the world’s most prolific climate tech clusters. What’s special is that they’re all reachable within four hours by train from London.
Within this region, you’ll find a critical mass of world-leading universities, ambitious climate investors, deep tech hubs, and some of Europe’s most forward-thinking cities: Cambridge, Paris, Cologne, Amsterdam, Antwerp, London, Eindhoven, Charleroi, Oxford. The list goes on.
We don’t believe the world needs another isolated innovation district or local hub. What it does need is a joined-up ecosystem that moves at the speed of the climate crisis.
An ecosystem where founders, researchers, investors, corporates, and governments collaborate across borders to scale solutions that work.
This is the ecosystem we’re building. We call it the Climate Tech SuperCluster.
Cleantech Venture Day in Amsterdam (April 2025)
Watch below for a taste of what it was like at our first venture from London and into Europe when Cleantech Venture Day was hosted at the fantastic NEMO Science Museum in Amsterdam.