Latest Climate tech Startup Funding Rounds
Companies working on energy, transport, industry and emissions. Explore the technologies and business models attracting investment.
- Rounds
- 448 Jan 1 – Oct 24, 2026
- Disclosed funding
- $23.3B 347 disclosed amounts
- Median round
- $12M Of disclosed amounts
| Company | Amount | Round | Sector | Country | Investors | Announced |
|---|---|---|---|---|---|---|
| WI Develops decentralized drinking water infrastructure platform | €2.4M | Series A+Series A | Climate tech | Sweden | Investors Undisclosed | |
| H H2SITECompany profile H2SITE builds membrane reactors and separators that produce high-purity hydrogen from transportable carriers and gas mixtures. H2SITE builds membrane reactors and separators that produce high-purity hydrogen from transportable carriers and gas mixtures. | €42M | Series B+Series B | Climate tech | Spain | Investors | |
| AT AquaPoro TechnologiesCompany profile AquaPoro develops atmospheric water systems that supply homes and industrial facilities with water extracted from ambient air. AquaPoro develops atmospheric water systems that supply homes and industrial facilities with water extracted from ambient air. | $5M | Seed | Climate tech | United States | Investors | |
| S Develops near-zero emissions steel production technology | €1.4B | Growth | Climate tech | Sweden | Investors | |
| L Develops lab plastic recycling system | £430K | Seed | Climate tech | United Kingdom | Investors | |
| F FleaseCompany profile Provides flexible reconditioned vehicle leasing and telematics-driven fleet management for enterprise clients Provides flexible reconditioned vehicle leasing and telematics-driven fleet management for enterprise clients | €13M | Undisclosed | Climate tech | France | Investors | |
| A AlpSemiCompany profile Semiconductor power switches for digitally controlled circuit breakers in buildings and high-voltage power systems. Semiconductor power switches for digitally controlled circuit breakers in buildings and high-voltage power systems. | €17M | Undisclosed | Climate tech, Hardware | France | Investors | |
| V VARMCompany profile Trains career changers to become certified insulation installers and deploys them across Europe Trains career changers to become certified insulation installers and deploys them across Europe | €17.5M | Series A | Climate tech | Germany | Investors | |
| AS Astral SystemsCompany profile Develops multi-state fusion technology for medical radioisotopes and commercial applications Develops multi-state fusion technology for medical radioisotopes and commercial applications | £23M | Series A | Climate tech, Industrial tech | United Kingdom | Investors | |
| DF Deep FissionCompany profile Deep Fission develops small modular nuclear reactors designed for installation in deep boreholes. Deep Fission develops small modular nuclear reactors designed for installation in deep boreholes. | $40M | Public offeringUndisclosed | Climate tech | United States | Investors Undisclosed |
Active investors in this selection
All investors →Ranked by rounds participated in · From Jan 1, 2026
- 1EU Innovation Fund
Epyr, Reverion, H2SITE
17rounds0led - 2Lowercarbon Capital
Stand, Type One Energy, Rainmaker
11rounds0led - 3High-Tech Gründerfonds
Rabot Energy, Veridue, reverse.fashion
8rounds0led - 4Gigascale Capital
Solcoa Industries, Planted, Light
8rounds0led - 5Eclipse
Stand, Prime Minute, Antora Energy
6rounds2led
Latest digests
Archive →Explore published rounds while the next edition is being prepared.