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🎯 150 Climate Startups To Watch, Say 50 VCs

PLUS: 120+ VCs, CVCs and impact funds heading to the HackSummit

April 23, 2025

There are more than 45,000 ClimateTech startups across Europe and North America alone, with tens of thousands more in APAC, Latin America, and Africa.

While not all will make it, many will go on to reshape and upend entire industries. And a growing number are already on a path to gigascale, set to transform how we power, feed, build, and move the world.

Here at Hack we don’t have a crystal ball to predict which startups will come out on top, but we do have insights from 50 investors who told us which Climate startups they’re excited by. And why.

👉 Head this way to see if your startup / who came out on top.

Better still, many of these investors and recommended startups are heading to the HackSummit on May 15-16th, as Speakers, Attendees, featured on the Menu or in the Startup Fair.

Tempted to join the HackSummit? Scroll on down for a sneak peek of 120+ investors who will join us next month. Now is the time to get on their radar and meet them IRL.

In today’s edition…

💸 120+ Capital Allocators in 1 Room

The HackSummit is where deals are made and new connections begin. Next month 120+ capital allocators are already confirmed to attend, including 25+ General Partners representing top-tier funds across ClimateTech, DeepTech and frontier science.

In the room includes:

  • GPs from Extantia, SOSV, 2150, Astanor, Blume Equity, Radical Fund

  • VCs from Satgana, CPT Capital, Catalyst Fund, Climentum Capital, Ananda

  • CVCs from SUEZ, Honda, Yanmar, DSM, A2A, Buhler, InMotion Ventures

  • Impact Funds Managers at LGT, Kieger, BNP Paribas, Lightrock, UBS, Zouk

  • Venture Builders and Accelerators at Brainforest, Marble, Anima, EIT Food

Whether you’re building in energy, food, materials, carbon, or nature - The HackSummit is the must-attend shortcut to finding the capital and partners to scale your mission.

🎯 150 Startups to Watch

We asked 50 VCs which Climate startups are the ‘ones to watch’ and most importantly, why.

The 150 star-startups came from across their portfolio, outside their portfolio and around the world to offer a big picture of the technologies and teams that have the potential to break out.

Hear from Investors at World Fund, Climentum Capital, Satgana, Lightrock, Atlantic Labs, Spin Ventures, Mercy Corps Ventures, UVC Partners, Planet A Ventures, Exa, Earth Venture Capital, Energy Impact Partners, Synthesis Capital, Future Energy Ventures and many more.

Spoiler: Many of the investors and startups in this article will also be heading to the HackSummit. And it’s not too late to join them there.

 🎤 10 New Speakers Announced

The HackSummit will bring together the who’s who of ClimateTech to inspire radical new ways of thinking, celebrate bold entrepreneurship and showcase mind-bending science.

The latest Investors and Venture Builders joining the HackSummit line up, include:

As well as Founders from bright startups and scaleups:

  • Jonathan Goshen, Co-Founder and CEO at upcycled protein startup, Yeap

  • Juan Mario Michan, Founder and CEO at methane emissions monitoring startup, Daphne Technology

  • Marco Albani, Co-Founder and CEO at earth observation startup, Chloris Geospatial

Plus CVCs, Corporates and Industry Enablers:

Ready to join them? It’s time to confirm your place and look forward to 2 action-packed days of networking, learning and fresh opportunities with 850+ industry leaders, all under one roof at the HackSummit.

We’re just 3 weeks away from the HackSummit, the global gathering of ClimateTech startups, scaleups, investors and operators.

If you’re looking for investment, new partnerships, or want to discover what’s new and next in climate, Lausanne in May is the place to be.

Hope to see you there too.

Laura at Hack

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