List of Recently Funded Energy Startups for 2025
Last update to database: October 13, 2025
Exploring the Top Funded Energy Companies in 2025
The energy sector is undergoing rapid transformation in 2025, with startups securing significant funding to develop renewable energy solutions, battery technology, smart grid systems, and energy storage innovations.
As the demand for clean energy and sustainable power sources grows, recently funded energy startups are pioneering advancements in solar, wind, hydrogen, and carbon capture technologies to drive the transition toward a greener future.
Our list is updated weekly to showcase the latest energy startups receiving venture capital, featuring key funding rounds, major investors, and emerging trends in clean energy, energy efficiency, and alternative fuels.
Whether you're an investor, energy professional, or sustainability advocate, explore the top-funded energy startups leading the charge in renewable power, energy infrastructure, and sustainability in 2025.
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List of Recently Funded Energy Startups for 2025
Last update to database: October 13, 2025
Subscribe to Unlock The Latest Funded Startups
Request AccessConnect with founders and decision-makers at recently funded startups. Subscribe to unlock full company and contact data.
Exploring the Top Funded Energy Companies in 2025
The energy sector is undergoing rapid transformation in 2025, with startups securing significant funding to develop renewable energy solutions, battery technology, smart grid systems, and energy storage innovations.
As the demand for clean energy and sustainable power sources grows, recently funded energy startups are pioneering advancements in solar, wind, hydrogen, and carbon capture technologies to drive the transition toward a greener future.
Our list is updated weekly to showcase the latest energy startups receiving venture capital, featuring key funding rounds, major investors, and emerging trends in clean energy, energy efficiency, and alternative fuels.
Whether you're an investor, energy professional, or sustainability advocate, explore the top-funded energy startups leading the charge in renewable power, energy infrastructure, and sustainability in 2025.
Comprehensive Database of Recently Funded Energy Startups - Updated Weekly
This data is delayed by 4 weeks. Subscribe for instant access to real-time funding rounds and contact data.
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Company Name
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Industries | Funding Amount (USD) | Recent Funding Date | Recent Funding Type | Company Headquarters | # Employees | Company Description | Top 5 Investors | Currently Hiring |
|---|---|---|---|---|---|---|---|---|---|
| LeydenJar | Consumer Electronics & De... | $27M Subscribe to Unlock | September 2025 | Venture - Series Unknown | Leiden, Zuid-Holland, The Netherlands | 83 | Developer and producer of... | European Investment Bank,... | Subscribe to Unlock |
| Proxima Fusion | Energy & Sustainability | $18M Subscribe to Unlock | September 2025 | Series A | Munich, Bayern, Germany | 110 | Stellarator-based fusion ... | Lightspeed Venture Partne... | Subscribe to Unlock |
| Solenery | Energy & Sustainability | $541K Subscribe to Unlock | September 2025 | Pre-Seed | Toronto, Ontario, Canada | 2 | AI-powered renewable ener... | Subscribe to Unlock | |
| Dig Energy | Energy & Sustainability, ... | $5M Subscribe to Unlock | September 2025 | Seed | Manchester, New Hampshire, United States | 14 | Drilling technology for e... | Baukunst, Suffolk Technol... | Subscribe to Unlock |
| Solfy.net | Energy & Sustainability | $5M Subscribe to Unlock | September 2025 | Seed | Madrid, Madrid, Spain | 64 | Marketplace enabling self... | Bonsai Partners, Bcombina... | Subscribe to Unlock |
| Nuclearn | Artificial Intelligence, ... | $11M Subscribe to Unlock | September 2025 | Series A | Phoenix, Arizona, United States | 16 | Software automating nucle... | Blue Bear Capital, AZ-VC,... | Subscribe to Unlock |
| Sapphire | Energy & Sustainability, ... | $18M Subscribe to Unlock | September 2025 | Series C | Cerritos, California, United States | 22 | Energy recovery systems f... | Energy Capital Ventures, ... | Subscribe to Unlock |
| Indigrid Technology | Consumer Electronics & De... | $4M Subscribe to Unlock | September 2025 | Venture - Series Unknown | Gurgaon, Haryana, India | 130 | Manufacturer of lithium-i... | Cactus Venture Partners | Subscribe to Unlock |
| Rable | Energy & Sustainability | $3M Subscribe to Unlock | September 2025 | Seed | Delft, Zuid-Holland, The Netherlands | 15 | Producer of advanced moun... | SHIFT Invest, Rubio Impac... | Subscribe to Unlock |
| Renewcast | Energy & Sustainability, ... | $1M Subscribe to Unlock | September 2025 | Seed | Roma, Lazio, Italy | 16 | SaaS forecasting platform... | 2C Ventures, Helen Ventur... | Subscribe to Unlock |
| rPlus Energies | Energy & Sustainability | $100M Subscribe to Unlock | September 2025 | Undisclosed | Salt Lake City, Utah, United States | 71 | Developer of new power pl... | Truist, Sandbrook Capital... | Subscribe to Unlock |
| Kora | Energy & Sustainability | $3M Subscribe to Unlock | September 2025 | Seed | Davis, California, United States | 0 | Household energy manageme... | Moneta Ventures, Growth F... | Subscribe to Unlock |
| Deep Fission | Nuclear Energy and Techno... | $30M Subscribe to Unlock | September 2025 | Undisclosed | Berkeley, California, United States | 28 | Deep modular nuclear reac... | Mark Tompkins, Ed Eisler,... | Subscribe to Unlock |
| Euclid Power | Energy & Sustainability, ... | $20M Subscribe to Unlock | September 2025 | Series A | Bloomington, Minnesota, United States | 86 | Specializes in developing... | Venrock, Designer Fund, N... | Subscribe to Unlock |
| Zympler | Energy & Sustainability | $2M Subscribe to Unlock | September 2025 | Seed | Utrecht, Utrecht, The Netherlands | 14 | Integrates batteries, cha... | Rabobank, ROM Utrecht Reg... | Subscribe to Unlock |
| Plural | Energy & Sustainability, ... | $7M Subscribe to Unlock | September 2025 | Seed | San Francisco, California, United States | 10 | Enables direct investment... | Paradigm, Compound, Volt ... | Subscribe to Unlock |
| Maxwell+Spark | Energy & Sustainability, ... | $10M Subscribe to Unlock | September 2025 | Series B | Leiden, Zuid-Holland, The Netherlands | 93 | Empowers industrial users... | Alantra, Fairtree Elevant... | Subscribe to Unlock |
| Sunland America | Energy & Sustainability | $895K Subscribe to Unlock | September 2025 | Seed | Claymont, Delaware, United States | 3 | Renewable energy firm con... | Subscribe to Unlock | |
| Xampla | Biotechnology, Industrial... | $14M Subscribe to Unlock | September 2025 | Series A | Cambridge, Cambridgeshire, United Kingdom | 48 | Developer of natural, bio... | Parkwalk Advisors, Busine... | Subscribe to Unlock |
| M2care | Health Care, Business and... | $30M Subscribe to Unlock | September 2025 | Venture - Series Unknown | Lyon, Rhone-Alpes, France | 9 | Innovation firm creating ... | Bpifrance | Subscribe to Unlock |
| Mopo | Energy & Sustainability, ... | $7M Subscribe to Unlock | September 2025 | Venture - Series Unknown | Sheffield, Sheffield, United Kingdom | 110 | Clean, affordable energy ... | British International Inv... | Subscribe to Unlock |
| Offgrid Energy Labs | Energy & Sustainability, ... | $15M Subscribe to Unlock | September 2025 | Series A | Noida, Uttar Pradesh, India | 9 | Sustainable, safe, and co... | Third Derivative, Ankur C... | Subscribe to Unlock |
| Koolboks | Energy & Sustainability | $11M Subscribe to Unlock | August 2025 | Series A | Rosny-sous-bois, Ile-de-France, France | 220 | Manufacturer of solar-pow... | Bpifrance, Acumen, Blue E... | Subscribe to Unlock |
| Copper | Consumer Electronics & De... | $28M Subscribe to Unlock | August 2025 | Series A | Berkeley, California, United States | 40 | Battery solutions startup... | Voyager Ventures, Dangero... | Subscribe to Unlock |
| Mycocycle | Agriculture & Farming, Bi... | $2M Subscribe to Unlock | August 2025 | Seed | Bolingbrook, Illinois, United States | 19 | Platform converting waste... | Alumni Ventures, gener8to... | Subscribe to Unlock |
| Newtral.io | Artificial Intelligence, ... | $500K Subscribe to Unlock | August 2025 | Seed | Bengaluru, Karnataka, India | 15 | Carbon emissions measurem... | NOW Venture Studio, Pedal... | Subscribe to Unlock |
| Nano-C | Energy & Sustainability, ... | $33M Subscribe to Unlock | August 2025 | Venture - Series Unknown | Westwood, Massachusetts, United States | 27 | Chemical company developi... | US Department of Energy, ... | Subscribe to Unlock |
| Reframe | Energy & Sustainability, ... | $20M Subscribe to Unlock | August 2025 | Series A | Andover, Massachusetts, United States | 51 | Robotic microfactories pr... | RA Capital Management, Ec... | Subscribe to Unlock |
| AiGent | Energy & Sustainability, ... | $6M Subscribe to Unlock | August 2025 | Seed | Houston, Texas, United States | 5 | Energy technology company... | CIV, Zero Infinity Partne... | Subscribe to Unlock |
| Acembee | Data & Analytics, Energy ... | $1M Subscribe to Unlock | August 2025 | Seed | Copenhagen, Hovedstaden, Denmark | 10 | AI assistant platform aut... | node.vc, Kiilto Ventures | Subscribe to Unlock |
| Pegasus Resources | Energy & Sustainability, ... | $250K Subscribe to Unlock | August 2025 | Private Equity | Fort Worth, Texas, United States | 40 | Mineral and royalty compa... | EnCap Investments | Subscribe to Unlock |
| General Fusion | Energy & Sustainability, ... | $22M Subscribe to Unlock | August 2025 | Venture - Series Unknown | Richmond, British Columbia, Canada | 140 | Provides commercial fusio... | Gaingels, Temasek Holding... | Subscribe to Unlock |
| OSW | Energy & Sustainability, ... | $5M Subscribe to Unlock | August 2025 | Venture - Series Unknown | Sydney, New South Wales, Australia | 150 | Distributor of solar prod... | Hillhouse Investment, Zha... | Subscribe to Unlock |
| Peelon | Logistics & Delivery, Agr... | $1M Subscribe to Unlock | August 2025 | Seed | New Castle, Delaware, United States | 9 | Sustainable packaging com... | BV Investment Partners, C... | Subscribe to Unlock |
| amu | Individual Sports, Waste ... | $894K Subscribe to Unlock | August 2025 | Seed | Kesennuma, Miyagi, Japan | 2 | Upcycling company produci... | ANRI, ANOBAKA, Japan Fina... | Subscribe to Unlock |
| Nrlyze | EdTech, Energy & Sustaina... | $1M Subscribe to Unlock | August 2025 | Venture - Series Unknown | Stockholm, Stockholms Lan, Sweden | 10 | Energy management firm op... | Aipa invesco, VEQ | Subscribe to Unlock |
| Aalo Atomics | Energy & Sustainability, ... | $100M Subscribe to Unlock | August 2025 | Series B | Austin, Texas, United States | 66 | Manufacturer of nuclear p... | Gaingels, Valor Equity Pa... | Subscribe to Unlock |
| XL Batteries | Energy & Sustainability | $7M Subscribe to Unlock | August 2025 | Venture - Series Unknown | Brooklyn, New York, United States | 25 | Developer of waste-reduci... | National Science Foundati... | Subscribe to Unlock |
| Super6 | Energy & Sustainability | $250K Subscribe to Unlock | August 2025 | Pre-Seed | London, Ontario, Canada | 3 | Startup advancing superca... | Norrsken Evolve | Subscribe to Unlock |
| Vital Lyfe | Industrial & Manufacturin... | $18M Subscribe to Unlock | August 2025 | Undisclosed | Hawthorne, California, United States | 10 | Climatetech product compa... | Subscribe to Unlock | |
| Jalle | Energy & Sustainability, ... | $250K Subscribe to Unlock | August 2025 | Pre-Seed | Tallinn, Harjumaa, Estonia | 5 | Developer of advanced bat... | Norrsken Evolve, 2C Ventu... | Subscribe to Unlock |
| Renew CO2 | Energy & Sustainability, ... | $4M Subscribe to Unlock | August 2025 | Venture - Series Unknown | Cranford, New Jersey, United States | 12 | Research company developi... | National Science Foundati... | Subscribe to Unlock |
| Claros | Advanced Materials & Tech... | $10M Subscribe to Unlock | August 2025 | Convertible Note | Saint Paul, Minnesota, United States | 43 | Advanced materials compan... | Steve Sefton, Ecosystem I... | Subscribe to Unlock |
| Therm | Financial Services, Envir... | $4M Subscribe to Unlock | August 2025 | Venture - Series Unknown | Lake Forest, Illinois, United States | 14 | Refrigerant carbon credit... | Subscribe to Unlock | |
| Triple Point Resources | Energy & Sustainability, ... | $3M Subscribe to Unlock | August 2025 | Undisclosed | Calgary, Alberta, Canada | 11 | Provider of underground c... | Subscribe to Unlock | |
| Flox | Artificial Intelligence, ... | $1M Subscribe to Unlock | August 2025 | Seed | Stockholm, Stockholms Lan, Sweden | 13 | Combines GenAI and wildli... | Almi Invest, Unconvention... | Subscribe to Unlock |
| Secure Solar Futures | Energy & Sustainability | $15M Subscribe to Unlock | August 2025 | Venture - Series Unknown | Staunton, Virginia, United States | 18 | Provider of affordable ro... | Pardee Resources Company | Subscribe to Unlock |
| SolarSteam | Energy & Sustainability, ... | $716K Subscribe to Unlock | August 2025 | Seed | Calgary, Alberta, Canada | 8 | Hardtech startup developi... | SVG Ventures, Government ... | Subscribe to Unlock |
| CORE Energy Systems | Energy & Sustainability, ... | $23M Subscribe to Unlock | August 2025 | Undisclosed | Thane, Maharashtra, India | 220 | Manufacturer of engineere... | Ashish Kacholia, Pankaj P... | Subscribe to Unlock |
| Hylenr | Energy & Sustainability, ... | $3M Subscribe to Unlock | August 2025 | Seed | Hyderabad, Andhra Pradesh, India | 22 | Nuclear fusion and clean ... | Karthik Sundar Iyer, Anan... | Subscribe to Unlock |
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