Daniel Saks
Chief Executive Officer
The clean energy transition is accelerating at unprecedented speed. While AI dominated headlines in 2024, clean energy startups quietly raised $11.6 billion in venture capital, with some companies achieving unicorn status in under two years. As solar generation surged 31% and renewables overtook coal for the first time in history, a new wave of clean energy tech companies is racing to redefine our power systems. For go-to-market teams targeting this high-growth sector, identifying the right decision-makers at these funded companies requires more than traditional databases. Platforms like Landbase enable teams to find and qualify prospects at these fastest-growing clean energy companies using natural-language prompts like "CEOs at recently funded clean energy startups in the US," delivering AI-qualified audiences ready for immediate outreach.
Crusoe Energy Systems builds AI data center infrastructure powered by stranded energy sources that would otherwise be wasted. The company monetizes flared natural gas and other underutilized energy sources to power compute-intensive AI workloads, effectively creating a carbon-negative solution for the booming AI infrastructure market.
Crusoe Energy represents a groundbreaking approach to solving two of the biggest challenges in tech: the massive energy consumption of AI data centers and the waste of stranded energy resources. By creating carbon-negative compute infrastructure, the company enables AI development while simultaneously reducing environmental impact, making it a critical enabler of sustainable AI growth
Recent Funding: $600 million Series D (December 2024)
Base Power develops residential energy storage solutions that help homeowners achieve energy resilience and independence. The company's battery systems integrate with solar panels and the grid to provide backup power during outages and optimize energy usage based on time-of-use pricing and grid conditions.
Base Power addresses the critical need for residential energy resilience as climate-related grid outages become more frequent. The company's solutions enable homeowners to maintain power during emergencies while supporting grid stability through distributed storage capacity. With battery storage demand surging alongside renewable energy adoption, Base Power's residential focus positions it at the forefront of the distributed energy revolution.
Valuation: $4 billion | Founded: 2022
Recent Funding: $1 billion Series C (October 2025)
NextEra Energy operates as the largest clean energy provider in the United States, developing, constructing, and operating utility-scale solar and wind projects across North America. The company also operates Florida Power & Light, one of the largest rate-regulated electric utilities in the country.
NextEra Energy combines massive scale with proven growth execution, making it the backbone of America's clean energy transition. The company's 30 GW renewable backlog demonstrates strong demand from corporate buyers and utilities seeking to meet sustainability commitments. As the largest clean energy provider by market cap, NextEra sets the standard for utility-scale renewable development and grid integration.
Valuation: $145 billion | Founded: 1984
Recent Funding: $54.1M Post IPO (February 2025)
Sungrow Power Supply manufactures solar inverters and energy storage systems, serving as the global leader in solar power conversion technology. The company's products convert DC power from solar panels into AC power for homes and businesses, while its storage systems enable energy time-shifting and grid services.
Sungrow Power Supply exemplifies how established clean energy companies can achieve explosive growth in emerging segments. The company's 128% storage growth demonstrates the massive shift toward integrated solar-plus-storage solutions worldwide. With operations in 180+ countries and technology advancing into green hydrogen production, Sungrow is critical to global renewable energy deployment and grid modernization.
Valuation: $47.20 billion | Founded: 1997
Recent Funding: $400 million Post IPO (August 2016)
Solugen operates a Bioforge platform that converts renewable feedstocks like corn sugar into building-block chemicals that replace fossil-fuel derivatives. The company's technology addresses industrial decarbonization by providing sustainable alternatives for chemicals used in fuels, concrete, and other industrial applications.
Solugen tackles one of the hardest-to-abate sectors: industrial chemicals. Traditional chemical production accounts for significant global emissions, and Solugen's bio-based approach offers a scalable pathway to decarbonization. With DOE backing and massive funding, the company is positioned to transform chemical manufacturing and enable other industries to reduce their carbon footprint through sustainable supply chains.
Valuation: $2.2 billion | Founded: 2016
Recent Funding: $600 million+ Series D (2025)
First Solar manufactures thin-film solar modules using cadmium telluride (CdTe) technology, operating as America's largest solar panel manufacturer. The company's vertically integrated business model includes module production, project development, and engineering, procurement, and construction (EPC) services.
First Solar represents America's solar manufacturing resurgence, benefiting from policies like the Inflation Reduction Act while meeting massive domestic demand. The company's thin-film technology offers advantages in high-temperature performance and lower carbon footprint compared to silicon panels. With 64 GW of secured backlog, First Solar is critical to US energy security and the domestic clean energy supply chain.
Valuation: $29.21 billion | Founded: 1999
Recent Funding: $1.1 billion (2024)
Aurora Solar provides solar design and sales software that enables installers to accurately plan, model, and sell rooftop solar systems without site visits. The platform uses satellite imagery, 3D modeling, and advanced algorithms to create detailed system designs and financial proposals.
Aurora Solar serves as critical enabling infrastructure for the solar industry, dramatically reducing the time and cost of system design and permitting. As solar capacity grows 88% and installers face labor constraints, Aurora's software becomes essential for scaling operations efficiently. The company's platform supports the entire solar value chain, from initial sales to final installation and monitoring.
Valuation: $4 billion | Founded: 2013
Recent Funding: $523 million Series D (2024)
BETA Technologies develops battery-powered electric aircraft, including both conventional takeoff and vertical takeoff (VTOL) models. The company's aircraft offer 336 nautical miles of range on a single hour-long charge and can carry 5 passengers or 200 cubic feet of cargo plus a pilot.
BETA Technologies addresses aviation's contribution to global emissions (approximately 2% of total) with practical electric aircraft solutions. The company's strong customer validation from logistics giants and military organizations demonstrates commercial viability and scalability. As the #1 ranked greentech company by TIME, BETA represents the future of sustainable regional air transportation and cargo delivery.
Valuation: $7.4 billion | Founded: 2017
Recent Funding: $318 million Series C (October 2024)
GE Vernova operates as a standalone company focused on wind energy, gas power, and grid modernization solutions following its spinoff from General Electric in April 2024. The company installs and services wind turbines, gas turbines, and grid infrastructure across 100+ countries.
GE Vernova represents the evolution of traditional energy companies into focused clean energy leaders. With the world's largest installed wind capacity and advanced grid modernization solutions, the company is essential to global renewable integration and energy reliability. The successful spinoff demonstrates investor confidence in dedicated clean energy infrastructure companies.
Valuation: $165.12 billion | Founded: 2024
Recent Funding: $600 million
Halcyon provides a machine-readable data platform that transforms energy market information into structured, actionable intelligence for energy professionals. The platform aggregates data from regulatory filings, market reports, and industry sources, making complex energy transition information accessible through APIs and data feeds.
Halcyon represents the intersection of data intelligence and energy transition, providing critical infrastructure for companies navigating complex regulatory, technological, and market changes. As energy markets become increasingly dynamic with renewable integration and policy shifts, Halcyon's machine-readable data platform enables faster, more informed strategic decisions across the energy value chain.
Valuation: $1 billion | Founded: 2023
Recent Funding: $10.8 million seed
The 10 companies featured in this list represent the vanguard of the clean energy transition, combining significant funding, explosive growth metrics, and transformative technologies. For B2B organizations looking to serve this high-growth sector, identifying the right decision-makers requires more than traditional approaches.
With many of these companies having recently secured major funding rounds, they are actively scaling go-to-market operations and building vendor relationships. Platforms like Landbase's natural-language targeting enable teams to find and qualify prospects at these companies using prompts like "Growth leaders at clean energy startups that raised Series C or later funding in 2024" or "C-level executives at companies with 100%+ year-over-year growth in energy storage."
The Landbase Platform combines 300M+ contacts with 1,500+ unique signals including funding rounds, growth metrics, and executive appointments. This enables go-to-market teams to build targeted audience lists in seconds rather than days, focusing outreach on the highest-potential accounts in the clean energy sector.
A "fastest growing" clean energy tech company demonstrates exceptional growth through metrics like year-over-year revenue increases, capacity additions, or order backlog growth. Key indicators include 88% solar capacity growth, 127.78% energy storage growth, or major funding rounds like Aurora Solar's $523 million Series D. These companies show both strong market validation through customer adoption and execution capability demonstrated by operational metrics. The combination of technology differentiation, market timing, and proven scalability sets these leaders apart from competitors.
Investors evaluate clean energy startups based on technology differentiation, market timing, team expertise, and path to profitability. The $12.5 billion raised in 2024 shows strong investor confidence, with particular interest in companies addressing grid stability, energy storage, and industrial decarbonization. Recent major funding rounds indicate investors are backing companies with proven technology and clear market demand. Due diligence focuses on technical feasibility, regulatory positioning, competitive advantages, and scalability of the business model.
The most promising renewable energy technologies include next-generation geothermal projects scaling to hundreds of megawatts, electric aviation reducing emissions by 75-84%, AI-powered energy intelligence platforms, and sustainable industrial chemicals replacing fossil-fuel derivatives. Energy storage continues to be critical, with 127.78% year-over-year growth demonstrating massive market demand. Solar-plus-storage integration and grid modernization technologies are also experiencing rapid advancement and deployment.
To identify emerging clean energy investment opportunities, monitor recent funding rounds through industry platforms and news sources tracking venture capital activity. Companies that have recently raised significant capital at Series B or later stages like Aurora Solar's $523 million Series D or Solugen's $600M+ Series D demonstrate strong investor validation. Focus on companies addressing critical needs like grid stability, industrial decarbonization, or energy storage with proven customer adoption. Evaluate technology differentiation, management team expertise, partnership quality, and revenue growth trajectories.
AI plays a crucial role in clean energy through energy transition intelligence platforms, AI-powered infrastructure optimization, and industrial process automation. 22% of clean energy startup investment in 2024 incorporated AI, demonstrating the technology's importance in the sector. AI enables better decision-making through data analysis, optimizes energy systems for efficiency and reliability, and creates new business models at the intersection of computing and energy. Machine learning algorithms improve renewable energy forecasting, grid management, and demand response capabilities while reducing operational costs.
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