cluster

Climate and energy startups

Clean energy, grid software, carbon, climate adaptation, energy for data centers.

966

companies tracked

42

from the last 2 years

163

startup-relevant federal grants ($147M)

Share of accelerator intake by year

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

Newest in the cluster

  • MolagriY Combinator S26

    Resistance free pesticides.

  • Rise ReformingY Combinator S26

    We turn waste gases into valuable supply-secure chemicals

  • Apollo Atomics, Inc.Y Combinator X26

    We make the most compact nuclear reactors

  • Condor EnergyY Combinator W26

    Software for enterprise energy procurement.

  • Terranox AIY Combinator W26

    The first AI-powered uranium discovery company

  • Voxel EnergyY Combinator W26

    Energy independent data centers with solar and repurposed batteries.

  • WattShiftTechstars TS 2026

    WattShift | Utility Rate Database, Price Signals, and Impact Calculations

  • Power DimeTechstars TS 2026

    Powerdime

  • AraBatTechstars TS 2026

    AraBat - Tecnologie Bio-based - Riciclo di Batterie al Litio

  • ArcticarTechstars TS 2026

    Arcticar | Electric Refrigeration - USA-Built Trailer Refrigeration

  • Eco Gear500 Global

    Developer of edible, bio-based nanocoating solutions designed to extend the shelf life of fresh produce without synthetic chemicals or plastics. The company uses high-pressure water extraction and nanoemulsion technology to convert natural food byproducts into ultra-thin, invisible coatings that act as moisture and oxidation barriers, enabling growers, cooperatives, and distributors to reduce food waste, maintain flavor and appearance, and support sustainable supply chains across domestic and export markets.

  • Baniql500 Global

    Developer of modular nickel refining platform delivering ESG-compliant, IRA-aligned battery-grade nickel from laterite ores using low-temperature, low-pressure green hydrometallurgy, designed to replace HPAL at a fraction of the cost and carbon footprint.

Most AI-visible

Highest AEO scores - how well AI assistants can read and cite them.

  • Ionworks68
  • Ketos66
  • Gentian65
  • Dyrt65
  • GoSprout65
  • Wattmore65
  • Smart Cocoon64
  • Thrust Carbon64

Recent rounds

  • Computomicsseries-a$7M
  • Metal Morphseed$875K

By program

  • Plug and Play428
  • Techstars255
  • SOSV126
  • Y Combinator123
  • 500 Global34

Browse all 966 Climate and energy companies →

Updated hourly from accelerator directories, funding news and federal grant data.