Climate X Deep Tech
May 2026, Lausanne
At HackSummit, we bet on the bold.
That’s why we’re doubling down on Climate Deep Tech at this year’s summit—supporting companies at the cutting edge of hardware and science-driven solutions.
Meet the Next Generation of Scientist-Leaders: CSOs and CTOs are the new rockstars, leading the charge in developing transformative technologies for climate solutions.
Explore the Climate Science Fair: Where early-to-growth-stage climate deep tech startups showcase their frontier technologies and connect with investors and industry leaders.
Make Real-World Impact: Engage with pioneers who are turning ambitious ideas—like fuels from CO2 and cloud seeding—into tangible solutions.
850
Attendees
50
Speakers
250
Investors
15
Side Events
10
Workshops
250
Founders
30
Startup Booths
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
Get Tickets
2025 Speakers
Recapping the Highlights
Tickets Sold Out
All passes include full access to HackSummit 2025, including agenda sessions, workshops, 30-sec pitch sessions, and Science Fair access. Side-events are first-come, first-served.
Startups
For bold founders and operators developing technology to tackle the climate crisis.
From pre-seed to Series B
Under 150 employees
Exhibitor Stand
Showcase your technology, expertise or products, Startups, corporates, scale-ups, and univerisites are invited to exhibit. Apply now to secure your spot!
Scaleups
For established trailblazers scaling breakthrough climate solutions.
Series C+ or well-funded growth-stage startups
150+ employees
Investors
For those funding the next generation of climate tech.
VCs, CVCs, Angels, Family Offices, Asset Managers
Philanthropic organizations backing climate innovation
Corporates
For industry leaders driving climate transformation.
Corporations integrating climate tech into their strategy
500+ employees
Ecosystem
For key players supporting the climate innovation ecosystem.
Academia, NGOs, Think Tanks
Service providers (law, consulting, research, etc.) with expertise in climate tech
Media
FREE
For journalists and storytellers amplifying the climate tech movement.
Reporters, editors, and media professionals covering climate innovation
Must be affiliated with a recognized media outlet
*The HackSummit is a curated event with attendance capped at 850 attendees. We review all ticket applications on an ongoing basis and reserve the right to refund your ticket application.
Past Speakers
Who Joined Us
%20-%20Meet%20the%20Global%20ClimateTech%20Community%20at%20the%20HackSummit-%402x1c1c1c-utd2.avif)
2025 Recap: ClimateTechs at the HackSummit Startup Fair
%20-%2050%2B%20ClimateTechs%20at%20the%20HackSummit%20Startup%20Fair-utd-1c1c1c.avif)
Thematics
Built Environment
building future-proof cities.
New Manufacturing
creating new foods, materials and chemicals.
Carbon Removal
novel approaches to decarbonisation.
Climate Adaptation
factoring in climate risk and change.
Infrastructure
the physical build out requirements to scale.
Nature and Biodiversity
models that profit on conservation.
Climate Finance
mobilising trillions of dollars towards climate.
Why they joined:
"We’re here because there’s some of the best climate entrepreneurs that I’ve met in my life."
Augustus Doricko
CEO at Rainmaker
"Being able to chat with founders that I’ve looked up to for multiple years, especially with later stage founders."
Alisha Fredriksson
Co-Founder & CEO at Seabound
“Meeting folks who are in climate deep tech to have interesting conversations and share knowledge and information so we can move the industry along.”
Ethosha Cave
Co-Founder at Twelve
You asked
How can I get involved in the summit?
Where does the summit take place?
How do I get to the summit venue?
When does the networking platform go live?
Can I get a refund or transfer my pass if I can't attend?
