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
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.