Top 100 Climate Tech Companies 2026

Climate tech, clean tech, and clean energy companies tackling climate change, ranked by total funding raised.

Known total funding for 100 of 100 ranked companies: $115.3B.

Showing top 100 matching companies · Ranked by total funding raised · Latest company record update Oct 8, 2026

Methodology: up to 100 active companies matching this list's filters are ordered by disclosed total funding in USD. Companies whose latest round is one of: Grant are excluded. Totals include recorded grants and other qualifying funding, not just equity. Open a company profile for its funding summary and available detail. How this data is built.

Serentica Renewables

Decarbonization and sustainable energy platform in India set up in partnership with the Sterlite ...

Gurugram, India51–200Clean Energy, Renewable Energy

Venture RoundTotal funding$650.0MMay 2023

Xpansiv

Carbon and ESG credit marketplace

New York, United States201–500Climate Tech, Fintech

Growth EquityTotal funding$650.0MJun 2024

Mainspring Energy

Developer of linear generator technology providing flexible, fuel-agnostic onsite power generatio...

Menlo Park, United States51–200Energy, Climate Tech

Series FTotal funding$643.0MApr 2025

Pivot Bio

Develops nitrogen-fixing microbial crop nutrition products for farmers to replace synthetic ferti...

Berkeley, United States201–500Climate Tech, Food Tech

Series DTotal funding$616.8MJul 2021

Gokin Solar

Gokin Solar develops photovoltaic products and solar modules for customers pursuing green-energy ...

Guangzhou, China201–500Climate Tech

Series BTotal funding$616.0MAug 2022

Electric Hydrogen

Manufacturer of high-power PEM electrolyzers that produce the lowest-cost green hydrogen for indu...

Devens, United States201–500Climate Tech, Energy

Series CTotal funding$602.0MOct 2023

Zenobe

UK-based battery storage and EV fleet electrification specialist, operating grid-scale batteries ...

London, United Kingdom201–500Clean Energy, Electric Vehicles

Growth EquityTotal funding$600.0MSep 2023

UPSIDE Foods

UPSIDE Foods grows cultivated chicken from animal cells in nutrient-fed tanks, producing real mea...

Berkeley, United States201–500Biotech, Food Tech

Series CTotal funding$583.0MApr 2022

SHINE Technologies

SHINE Technologies commercializes fusion applications for medical-isotope production, neutron tes...

Janesville, United States201–500Climate Tech

Series ETotal funding$573.1MFeb 2026

ABB E-Mobility

EV charging solutions provider powering CPOs, public transit systems, logistics fleets, and retai...

Zurich, Switzerland1001–5000Climate Tech, Automation

Venture RoundTotal funding$567.0MFeb 2023

1Komma5

Climate tech unicorn and one-stop-shop for smart home energy solutions including solar panels, ba...

Hamburg, Germany1001–5000Clean Energy, Climate Tech

Venture RoundTotal funding$565.0MJul 2025

Electra

European fast EV charging network deploying ultra-fast charging stations up to 400kW across major...

Paris, France201–500Climate Tech

Series BTotal funding$558.6MJan 2024

Palmetto

Clean energy platform that helps homeowners and partners adopt residential solar, financing, subs...

Charlotte, United States201–500Clean Energy, Energy Storage

Series DTotal funding$558.3MMar 2024

Antora Energy

Thermal energy storage company building factory-made battery systems that deliver zero-emissions ...

San Jose, United States51–200Climate Tech, Energy Storage

Series CTotal funding$550.0MAug 2026

FLO

EV charging network and station provider for home, commercial, and fleet use across North America.

Montreal, Canada201–500Electric Vehicles, Energy

Series ETotal funding$536.0MJun 2024

Re Sustainability Limited

Re Sustainability provides integrated environmental management, wastewater treatment, and consult...

Hyderabad, India10001+Climate Tech

Private EquityTotal funding$530.0MAug 2018

Tata Power Renewables

One of the largest operators and developers of renewable power in India.

Mumbai, India1001–5000Climate Tech

Series DTotal funding$525.0MApr 2022

Aurora Solar

Cloud-based software platform that transforms solar design, sales, and delivery with AI-powered t...

San Francisco, United States201–500Clean Energy, Renewable Energy

Series DTotal funding$520.0MFeb 2022

o9 Solutions

o9 provides an AI-powered enterprise planning platform that connects supply chain, commercial, an...

Dallas, United States1001–5000Artificial Intelligence, Climate Tech

Growth EquityTotal funding$511.0MJul 2023

Energy Vault

Energy Vault develops utility-scale energy storage solutions including gravity-based, battery, an...

Westlake Village, United States201–500Clean Energy, Energy Storage

Growth EquityTotal funding$510.0MAug 2025

Whistler Pipeline

Whistler Pipeline is a joint venture providing natural gas transportation in the Permian Basin.

Austin, United StatesClimate Tech

Corporate RoundTotal funding$508.0MMay 2019

Boston Metal

Develops Molten Oxide Electrolysis to produce low-carbon steel and recover valuable metals from m...

Boston, United States201–500Climate Tech, Manufacturing

ConvertibleTotal funding$506.5MJul 2025

SK ecoplant

Environment-focused energy company

Seoul, South Korea5001–10000Climate Tech

Venture RoundTotal funding$500.0MJul 2022

Starcloud

Starcloud builds scalable data center infrastructure in space, using solar energy and radiative c...

Redmond, United States1–10Cloud, Space Tech

Extension RoundTotal funding$477.9MAug 2026

Fourth Partner Energy

India-based commercial and industrial solar energy company providing renewable energy solutions t...

Hyderabad, India201–500Climate Tech

Growth EquityTotal funding$470.0MAug 2024

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