Climate Tech

The $130 trillion energy transition is creating the largest startup opportunity of the century. Explore the companies building fusion reactors, carbon capture, grid-scale batteries, and sustainable materials.

60
Startups
$442.9B
Total Funding
6
Sector Queries
Updated Hourly

Top Startups in Climate Tech

Equinor

Equinor

Norwegian multinational energy company transitioning from oil and gas to renewables and low-carbon solutions.

Energy Production
Oil and Gas
Renewable Energy
N/A
Stavanger

Reliance Industries

Indian conglomerate investing heavily in AI infrastructure and services.

Artificial Intelligence
Telecommunications
Data Centers
$110.0B
Mumbai
Tesla

Tesla

Designs, manufactures, and sells electric vehicles, battery energy storage, and solar energy products.

Automotive
Renewable Energy
Energy Storage
$7.7B
Austin
First Reserve

First Reserve

A global private equity investment firm focused exclusively on energy and infrastructure.

Private Equity
Investment Management
Energy
$21.3B
Greenwich
Blackstone Energy Transition Partners

Blackstone Energy Transition Partners

Blackstone's dedicated private equity business focused on investing in the global energy transition.

Energy Transition
Renewable Energy
Private Equity
$10.0B
New York

Public Investment Fund (PIF)

Saudi Arabia's sovereign wealth fund driving economic diversification and global investment.

Sovereign Wealth Fund
Economic Diversification
Global Investment
N/A
Riyadh
SolarEdge

SolarEdge

SolarEdge is a global leader in smart energy technology, providing solar inverters, power optimizers, and energy storage systems for residential and commercial installations.

Energy
Cleantech
Solar
$72M
Group14 Technologies

Group14 Technologies

Manufacturing advanced silicon-carbon composite anode materials for lithium-ion batteries.

Battery Technology
Materials Science
Automotive
$463M
Woodinville

BYD Co., Ltd.

Chinese multinational manufacturing conglomerate specializing in automobiles, batteries, electronics, and rail transit.

Automotive
Electric Vehicles
Battery Technology
$8.3B
Shenzhen

Rio Tinto

A global leader in mining and metals, developing and operating mines, refineries and smelters.

Mining
Metals
Materials
$1.2B
London

Fluor

Global engineering, procurement, and construction services for complex projects across various industries.

Engineering
Construction
Energy
$25.0B
Irving

Noble Energy

An independent oil and natural gas exploration and production company.

Oil and Gas Exploration
Energy Exploration
Petroleum Industry
$5.0B
Houston

Idemitsu Kosan Co.

A global Japanese energy company specializing in petroleum refining, petrochemicals, and renewable energy solutions.

Energy
Oil & Gas
Petrochemicals
$500M
Tokyo

Founders Fund

Venture capital firm investing in revolutionary technologies and ambitious founders tackling big problems.

Venture Capital
Technology
Artificial Intelligence
$19.9B
San Francisco
Toshiba

Toshiba

A diversified conglomerate with a focus on quantum technology.

Quantum Technology
Semiconductors
Electronics
$63M
Tokyo

SB Energy

A subsidiary of SoftBank, focused on energy infrastructure development.

Energy
Infrastructure
Utilities
$33.0B
Ohio-Kentucky border

Kinder Morgan

North America's largest energy infrastructure company, specializing in pipelines and terminals.

Energy
Infrastructure
Pipelines
$45.0B
Houston
Venture Global LNG

Venture Global LNG

Developing and operating world-class liquefied natural gas (LNG) export facilities.

Energy
Infrastructure
Utilities
$11.3B
Arlington

Northvolt

A European battery manufacturer aiming to produce sustainable, high-quality lithium-ion batteries.

Automotive
Energy
Manufacturing
N/A
Stockholm

CenterPoint Energy

A regulated electric and natural gas utility company serving millions of customers across the U.S.

Energy
Utilities
Electric Utility
$600M
Houston

Refex Group

Diversified Indian conglomerate focused on sustainability across energy, infrastructure, life sciences, and emerging technologies.

Refrigerant Gases
Ash Management
Green Mobility
$9.3B
Chennai
Arevon Energy

Arevon Energy

Renewable energy company focused on developing, acquiring, and operating utility-scale solar and battery storage projects.

Energy & Climate Tech
Clean Energy
Solar Energy
$5.1B
Westlake Village
Verdane

Verdane

A European investment firm focused on technology and growth companies.

Venture Capital
Private Equity
Technology
$6.3B
London
Vivint Solar

Vivint Solar

Residential solar energy provider offering design, installation, and financing of solar systems.

Solar Energy
Clean Energy
Residential Solar
$300M
Lehi

Adani Group

Adani Group is investing $100 billion over the next decade to build AI data centers across India.

Data Centers
Artificial Intelligence
Renewable Energy
$100.0B
Ahmedabad
Helion

Helion

Fusion energy startup aiming for commercial power generation.

Clean Energy
Fusion Power
Nuclear Fusion
$3.1B
Everett
Wiliot

Wiliot

IoT
Energy
Radio Frequency
$344M
Form Energy

Form Energy

Form Energy develops and manufactures long-duration, grid-scale iron-air batteries for cost-effective renewable energy storage.

Batteries
Climate Tech
Energy Storage
$1.4B
Somerville
Generate Capital

Generate Capital

Sustainable Infrastructure
Renewable Energy
Environmental Technology
$4.5B
Octopus Energy

Octopus Energy

Global clean energy tech company using proprietary software to provide affordable, renewable energy solutions.

Energy
Cleantech
SaaS
$800M
London
ArtIn Energy

ArtIn Energy

Energy technology company focused on innovative solutions.

Energy
Solar Energy
Green Hydrogen
$255M
Tampa

Lime

A shared electric scooter and bike company.

Transportation
Mobility
Hardware
$2.0B
San Francisco

Emera

A North American energy company.

Utilities
Energy
Electric Utilities
N/A
Halifax

HANWHA

South Korean conglomerate with diversified holdings in energy, materials, aerospace, finance, retail, and more.

Conglomerate
Energy
Materials
N/A
Seoul
Comerc Energia

Comerc Energia

Comerc Energia provides comprehensive energy and decarbonization solutions for the free energy market.

Energy
Climate Tech
Clean Energy
$589M
São Paulo
Energy Transfer Partners

Energy Transfer Partners

A major midstream energy company specializing in natural gas, crude oil, and NGL infrastructure.

Energy
Oil & Gas
Infrastructure
N/A
Dallas

Aggreko

Global provider of modular, mobile power, heating, and cooling equipment for temporary industrial needs.

Energy
Industrial
Infrastructure
N/A
Glasgow
NextEra Energy

NextEra Energy

A leading clean energy company, largest electric utility holding company in the world.

Energy
Utilities
Renewable Energy
N/A
Juno Beach
Kiewit

Kiewit

A leading employee-owned construction and engineering company building North America's infrastructure and energy projects.

Construction
Engineering
Infrastructure
N/A
Omaha
Eaton Corporation

Eaton Corporation

Intelligent power management company providing energy-efficient electrical, hydraulic, and mechanical power solutions globally.

Energy
Industrial
Aerospace
N/A
Dublin

Siemens

Global technology conglomerate focused on industrial automation, infrastructure, transport, and healthcare digital solutions.

Industrial Automation
Digital Transformation
Energy
N/A
Munich

BP

Global energy company involved in oil, gas, and low-carbon energy solutions.

Oil & Gas
Energy
Renewable Energy
N/A
London
Esentia Gas Enterprises

Esentia Gas Enterprises

A subsidiary of Esentia Energy Development involved in a tender offer.

Energy
Oil & Gas
Natural Gas
$2.0B
Mexico City
Galp

Galp

Portugal's leading energy company focused on sustainable energy systems and CO₂ reduction.

Energy
Renewable Energy
Oil & Gas
N/A
Lisbon
Jacobs

Jacobs

Global technical professional services firm providing engineering, consulting, and technology solutions.

Engineering
Consulting
Infrastructure
N/A
Dallas
Tesla Energy Ventures

Tesla Energy Ventures

Tesla's new division approved to sell electricity directly to customers.

Energy
Utilities
Renewable Energy
N/A
Palo Alto

Valero Energy Corporation

A global leader in the production of transportation fuels and petrochemical products.

Energy
Oil & Gas
Petrochemicals
N/A
San Antonio

Intertek

Global leader in Total Quality Assurance, providing testing, inspection, and certification services.

Testing
Inspection
Certification
N/A
London

Waste Management

North America's leading provider of comprehensive waste management and environmental services.

Waste Management
Environmental Services
Recycling
N/A
Houston
Crusoe Energy

Crusoe Energy

Energy & Climate Tech
Climate Tech
Clean Energy
$610M
Denver
RELEX

RELEX

AI-powered retail planning and execution platform for supply chain optimization.

RetailTech
Supply Chain
LogisticsTech
$883M
Helsinki
Radiant

Radiant

Building the world's first mass-produced portable nuclear generators for anywhere power delivery.

Nuclear Energy
Defense
Clean Energy
$518M
El Segundo

GridBeyond

Intelligent AI-powered energy management platform for balancing grid supply and demand for cleaner energy.

Energy
Software
Hardware
$56M
Dublin

Overview Energy

Developing space-based solar power technology.

Aerospace
Energy
Cleantech
$63M
Palo Alto
Apeel Sciences

Apeel Sciences

Develops a plant-based coating to extend the shelf life of produce.

AgTech
FoodTech
Sustainability
$626M
Santa Barbara

PVcase

PVcase is a software company that helps solar professionals design and sell solar projects faster.

Renewable Energy
Software
Cleantech
$63M
Vilnius
Valar Atomics

Valar Atomics

Nuclear energy startup developing small, high-temperature reactors for AI data centers and industrial applications.

Climate Tech
Clean Energy
Nuclear Power
$593M
El Segundo

Essentia Energy Development

Essentia Energy Development is a company involved in energy development, specifically issuing senior notes to fund its operations and potential acquisitions.

Energy
Utilities
Energy & Climate Tech
$2.0B
Mexico City

VoltaGrid

Provider of mobile natural gas generators for data centers, microgrids, and industrial applications.

Energy
Data Center Infrastructure
Industrial
$1.0B
Houston
C3 AI

C3 AI

Provider of enterprise artificial intelligence software and applications.

Artificial Intelligence
Enterprise Software
Government Technology
$1.0B
Redwood City
Climate tech is no longer a niche — it's the largest investment theme of the 2020s. Breakthrough Energy Ventures, DCVC, Lowercarbon Capital, and S2G Ventures have deployed $30B+ into startups addressing the energy transition. The IRA (Inflation Reduction Act) alone unlocked $370B in incentives, and the EU Green Deal adds another €1T over the decade. The winning sectors within climate tech are highly differentiated. Battery storage (Form Energy, EnerVenue) is solving the grid's intermittency problem. Nuclear fusion (Commonwealth Fusion, Helion) promises unlimited clean energy. Carbon capture (Climeworks, Heirloom) is scaling from lab to megatons. Green hydrogen (Plug Power, Electric Hydrogen) is decarbonizing heavy industry. Each sub-sector has its own economics, regulatory framework, and competitive dynamics. What separates climate tech winners from losers is capital efficiency. Solar panels commoditized; the value is in software, grid orchestration, and project finance. Deep-tech bets (fusion, advanced geothermal) require patient capital. The most fundable startups combine hardware innovation with recurring software revenue — monitoring systems, energy trading platforms, and carbon credit marketplaces that generate margin while the hardware depreciates.

Explore More Startups

Search any AI startup in our database