Energy & climate startups: 166 funded companies

By region: North America 79 · Europe 34 · Other regions 22 · China 11 · Asia 8 · Korea 6 · Japan 6

Recent rounds in Energy & climate

1. Alga Biosciences

   We stop cows from burping methane.

   Y Combinator Winter 2022North America

2. Apollo Atomics, Inc.

   We make the most compact nuclear reactors

   Y Combinator Spring 2026North America

3. Advano

   Advano is a battery technology company that improve the longevity of…

   Y Combinator Summer 2017North America

4. Atmeto

   Building a frontier world model for power

   Y Combinator Winter 2023North America

5. BuyPower

   Modern bill payment platform for African businesses and consumers.

   Y Combinator Winter 2017Other regions

6. Carbic

   using ultrasonics + ml to analyze fluid behavior at infrastructure…

   Y Combinator Winter 2016North America

7. Carbon Crusher

   We make carbon negative roads

   Y Combinator Winter 2022Europe

8. Evoly

   Smart electric & water meters as a service

   Y Combinator Summer 2022North America

9. Maple Materials

   We turn CO2 into battery-grade graphite and oxygen.

   Y Combinator Winter 2019North America

10. Minimum

    Helping corporates achieve Net Zero through tech solutions.

    Y Combinator Summer 2020Europe

11. Phykos

    Growing seaweed to stabilize the climate.

    Y Combinator Summer 2021North America

12. Posh

    Rapidly deployable energy solutions for modern commercial and…

    Y Combinator Winter 2022North America

13. Remora

    Modular carbon capture

    Y Combinator Winter 2021North America

14. Astro

    Power-ready land for AI data centers

    Y Combinator Winter 2025North America

15. Rewbi

    A stealth mode startup.

    Y Combinator Summer 2024North America

16. Terranox AI

    The first AI-powered uranium discovery company

    Y Combinator Winter 2026North America