Latest Climate tech Startup Funding Rounds
Companies working on energy, transport, industry and emissions. Explore the technologies and business models attracting investment.
- Rounds
- 410 Jan 1 – Oct 12, 2026
- Disclosed funding
- $23.1B 334 disclosed amounts
- Median round
- $13M Of disclosed amounts
| Company | Amount | Round | Sector | Country | Investors | Announced |
|---|---|---|---|---|---|---|
| HT HexSeed TechnologyCompany profile HexSeed Technology develops diamond coatings that draw heat away from power semiconductors. HexSeed Technology develops diamond coatings that draw heat away from power semiconductors. | >£600K | Early-stage fundingPre-seed | Climate tech, Industrial tech | United Kingdom | Investors | |
| G Customizes electric and gas-powered vans into modular commercial vehicles | $5M | Seed | Climate tech, Mobility | United States | Investors | |
| t trutilityCompany profile Develops and operates battery storage, solar and microgrid energy infrastructure Develops and operates battery storage, solar and microgrid energy infrastructure | Undisclosed | StrategicUndisclosed | Climate tech | United States | Investors | |
| PC Princeton Critical MineralsCompany profile Develops technology to improve lithium production efficiency from brine sources Develops technology to improve lithium production efficiency from brine sources | $16M | Series A | Climate tech | United States | Investors | |
 AGent EnergyCompany profile AGent Energy helps facilities earn revenue from backup generators by coordinating their participation in power markets. AGent Energy helps facilities earn revenue from backup generators by coordinating their participation in power markets. | $11M | Seed | Climate tech | United States | Investors | |
| M MillowCompany profile Millow produces fungi-based protein ingredients for professional kitchens and food manufacturers. Millow produces fungi-based protein ingredients for professional kitchens and food manufacturers. | €2M | Funding roundUndisclosed | Climate tech, Foodtech | Sweden | Investors | |
| MM Recovers and reuses industrial treatment chemicals from wastewater | £700K | Pre-SeedPre-seed | Climate tech | United Kingdom | Investors | |
| FE FORM ENERGYCompany profile Long-duration iron-air batteries designed to store electricity for multi-day grid needs. Long-duration iron-air batteries designed to store electricity for multi-day grid needs. | $750M | Series GSeries C+ | Climate tech | — | Investors T. Rowe Price Investment ManagementLeadBlindspot Ventures +17Breakthrough Energy VenturesCapricorn Technology Impact FundsCari TunaCoatueDustin Moskovitz through Good Ventures FoundationEnergy Impact PartnersEngine VenturesFranklin TempletonGE VernovaGigascale CapitalJanus Henderson InvestorsM&G CatalystNGP Energy Capital ManagementPEAK6Prelude VenturesSequoia CapitalTPG Rise Climate | |
| R ReservoirCompany profile Reservoir makes and installs predictive all-electric water heaters designed to serve homeowners and respond to energy needs. Reservoir makes and installs predictive all-electric water heaters designed to serve homeowners and respond to energy needs. | $8M | Seed | Climate tech | United States | Investors | |
| W WasteSideCompany profile WasteSide connects students, universities and local partners through an app that rewards sustainable everyday choices. WasteSide connects students, universities and local partners through an app that rewards sustainable everyday choices. | >€700K | Seed | Climate tech | Germany | Investors |
Active investors in this selection
All investors →Ranked by rounds participated in · From Jan 1, 2026
- 1Lowercarbon Capital
Type One Energy, Rainmaker, Rune
10rounds0led - 2Gigascale Capital
Solcoa Industries, Planted, Light
8rounds0led - 3High-Tech Gründerfonds
Veridue, reverse.fashion, Qurie
7rounds0led - 4Breakthrough Energy Ventures
Type One Energy, Planted, FORM ENERGY
6rounds1led - 5EIC Fund
Reverion, Circular Materials, Proxima Fusion
6rounds0led
Latest digests
Archive →Explore published rounds while the next edition is being prepared.