All Rankings

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.

26
Proxima Fusion

Develops QI stellarators and designs fusion power plants, partnering with utilities and institute...

Munich, Germany51–200Clean Energy, Deep Tech
Growth EquityTotal funding$1.1BJul 2026
27
VoltaGrid

VoltaGrid delivers firm, off-grid power, fuel, infrastructure, and energy management services to ...

Houston, United States201–500Climate Tech, Energy
Growth EquityTotal funding$1.1BMay 2026
28
Group14 Technologies

Discover how the silicon battery is transforming energy solutions globally with Group14's SCC55® ...

Woodinville, United States201–500Clean Energy, Manufacturing
Series DTotal funding$1.1BAug 2025
29
Ascend Elements

Ascend Elements manufactures engineered lithium-ion battery materials from recycled batteries and...

Westborough, United States51–200Advanced Manufacturing, Clean Tech
Growth EquityTotal funding$1.0BFeb 2024
30
Rubicon Carbon

Rubicon Carbon is a carbon asset platform helping large enterprises achieve sustainability goals ...

Marina del Rey, United States11–50Climate Tech
Growth EquityTotal funding$1.0BJan 2022
31
Summit Carbon Solutions

Summit Carbon Solutions builds carbon capture and pipeline infrastructure to transport CO2 from M...

AMES, United States51–200Climate Tech
Growth EquityTotal funding$1.0BMar 2025
32
SILA

Real estate platform in India.

Alameda, United States201–500Advanced Materials, Clean Energy
Corporate RoundTotal funding$965.0MMar 2025
33
Renewa

Renewa provides landowners with lease monetization and delivers capital solutions that help renew...

Houston, United States11–50Clean Energy, Infrastructure
Venture RoundTotal funding$952.0MJan 2026
34
Twelve

Carbon transformation company that converts CO2 into essential products like sustainable aviation...

Berkeley, United States201–500Carbon Capture, Clean Tech
Series CTotal funding$936.4MDec 2025
35
Climeworks

Builds and operates Direct Air Capture systems and sells carbon removal services to enterprise cu...

Zurich, Switzerland201–500Climate Tech, Carbon Capture
Venture RoundTotal funding$925.0MJul 2025
36
Rezolv Energy

Independent renewable energy producer delivering clean power at stable long-term prices for indus...

London, United Kingdom51–200Clean Energy, Climate Tech
Private EquityTotal funding$897.0MDec 2024
37
GoodLeap

Mission-driven company aiming to address climate change by providing seamless, low-cost residenti...

Roseville, United States501–1000Clean Energy, Fintech
Growth EquityTotal funding$800.0MOct 2021
38
Sunfire

Sunfire supplies green-hydrogen projects with pressurized alkaline and solid oxide electrolyzers,...

Dresden, Germany501–1000Clean Energy, Hardware
Growth EquityTotal funding$788.5MJul 2025
39
Enpal

Germany's leading integrated renewable energy company offering solar panel subscriptions, battery...

Berlin, Germany1001–5000Clean Tech, Renewable Energy
Venture RoundTotal funding$769.0MApr 2025
40
Aridge

Flying car and low-altitude mobility company, subsidiary of Xpeng Motors

Dongguan, China201–500Aerospace, Electric Vehicles
Series BTotal funding$750.0MJul 2025
41
EcoVadis

EcoVadis provides sustainability ratings and intelligence that help companies assess, compare, an...

Paris, France1001–5000Analytics, Climate Tech
Series CTotal funding$731.9MJun 2022
42
Alcazar Energy

Renewable energy company with portfolio of solar and wind projects in MENA region

Luxembourg, Luxembourg51–200Climate Tech
Venture RoundTotal funding$730.0MMay 2024
43
EnerVenue

EnerVenue develops enduring energy storage infrastructure using proven nickel-hydrogen chemistry ...

Fremont, United States51–200Clean Energy
Series BTotal funding$700.0MMar 2026
44
Hybar

Hybar produces low-cost, energy-efficient rebar at a technologically advanced mini mill powered b...

Osceola, United States51–200Clean Energy, Manufacturing
Venture RoundTotal funding$700.0MAug 2023
45
Solugen

Solugen manufactures lower-carbon specialty chemicals using its Bioforge platform, combining enzy...

Houston, United States51–200Biotech, Climate Tech
Venture RoundTotal funding$695.7MMar 2026
46
Antares Industries

Antares Nuclear builds factory-produced fission microreactors that supply 100kWe to 1MWe of strat...

Los Angeles, United States51–200Defense Tech, Energy
Series CTotal funding$675.0MJul 2026
47
Aspen Power

Solar developer that provides landowners and businesses guaranteed long-term lease payments to ho...

Clean Energy, Energy
Venture RoundTotal funding$670.0MJan 2026
48
LiveKindly

Global plant-based food company and collective of heritage brands on a mission to make plant-base...

New York, United States201–500Climate Tech, E-Commerce
Series BTotal funding$670.0MMar 2021
49
Lunar Energy

Home solar and battery storage company offering modular 20 kWh battery systems with hybrid invert...

United StatesClean Energy, Energy Storage
Series DTotal funding$662.0MFeb 2026
50
AGP Sustainable Real Assets

Founder-owned investor and asset manager that develops and operates sustainable real assets acros...

Singapore, Singapore501–1000Climate Tech, Real Estate
Growth EquityTotal funding$650.0MNov 2023