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 25, 2026
- Disclosed funding
- $23.3B 347 disclosed amounts
- Median round
- $12M Of disclosed amounts
| Company | Amount | Round | Sector | Country | Investors | Announced |
|---|---|---|---|---|---|---|
| AE Alva EnergyCompany profile Developer of standardized upgrades that increase output from existing nuclear power plants. Developer of standardized upgrades that increase output from existing nuclear power plants. | $33M | Series A | Climate tech | United States | Investors | |
| IE Develops fusion-energy technology. | $450M | Series A | Climate tech | United States | Investors | |
| PO Project OmegaCompany profile Recycles spent nuclear fuel into long-duration power sources and critical materials Recycles spent nuclear fuel into long-duration power sources and critical materials | $12M | Undisclosed | Climate tech | United States | Investors | |
| x xWattsCompany profile Develops AI-driven energy management software to optimize energy use in real estate portfolios Develops AI-driven energy management software to optimize energy use in real estate portfolios | £1.6M | Seed | Climate tech | United Kingdom | Investors | |
| HH Hauler HeroCompany profile Provides AI-powered software platform for waste management companies including CRM billing and routing Provides AI-powered software platform for waste management companies including CRM billing and routing | $16M | Series A | Climate tech, Enterprise software | United States | Investors | |
| N NatilusCompany profile Develops hyper-efficient blended-wing aircraft for commercial and defense aviation Develops hyper-efficient blended-wing aircraft for commercial and defense aviation | $28M | Series A | Climate tech, Mobility | United States | Investors | |
| V VesiroCompany profile Develops software that optimizes Elasticsearch performance to reduce server energy use Develops software that optimizes Elasticsearch performance to reduce server energy use | €1.6M | Seed | Climate tech, Developer tools | Finland | Investors | |
| CA Capalo AICompany profile Develops software to maximise the value of battery energy storage systems across electricity markets Develops software to maximise the value of battery energy storage systems across electricity markets | €11M | Series A | Climate tech | Finland | Investors | |
| pT pHathom TechnologiesCompany profile Develops carbon capture solutions for existing coastal bioenergy and industrial facilities Develops carbon capture solutions for existing coastal bioenergy and industrial facilities | $12M | Seed | Climate tech | Canada | Investors | |
| RR R3 RoboticsCompany profile Automates disassembly of electric vehicle components using AI and robotics Automates disassembly of electric vehicle components using AI and robotics | €14M | Series A | Climate tech | Luxembourg | Investors |
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.