Energy

1KOMMA5° is a Hamburg-based integrated clean energy company that sells, installs, and manages residential and commercial solar panels, battery storage systems, heat pumps, and EV charging equipment ac

24M Technologies is a Cambridge, Massachusetts-based battery technology company that developed SemiSolid™ — a novel electrode manufacturing process that replaces traditional solvent-based slurry coati

280 Earth is an early-stage biotechnology and climate company developing a bio-based direct air capture (DAC) system that uses genetically engineered trees to remove carbon dioxide from the atmosphere

ABB Ability is ABB Ltd's (NYSE: ABB) digital industrial platform — an integrated suite of IoT software, analytics, and cloud services connecting ABB's physical industrial equipment (robots, motors, dr

Aerodyne Group is a Malaysia-headquartered company specializing in drone-based data capture and AI-powered analytics for critical infrastructure industries. Founded in 2014 and operating across more t

The AES Corporation is an Arlington, Virginia-based global power company — publicly traded on the New York Stock Exchange (NYSE: AES) as an S&P 500 Fortune 500 component — generating and distributing

AiDash is a full-stack SaaS company that uses satellites and artificial intelligence to make critical infrastructure industries — electric, gas, and water utilities, transportation, and construction —

Air Company is a carbon technology company founded in 2017 and headquartered in New York City, with manufacturing operations in Brooklyn. The company has developed a proprietary technology platform —

AirMyne is a direct air capture (DAC) company that uses geothermal energy to power its liquid sorbent CO2 capture process — addressing the largest cost driver in DAC by using low-temperature geotherma

Albemarle Corporation is a Charlotte, North Carolina-headquartered global specialty chemicals company — publicly traded on the New York Stock Exchange (NYSE: ALB) as an S&P 500 company — operating as

Alga Biosciences is a climate biotechnology company developing seaweed-based feed supplements that reduce methane emissions from cattle and other ruminant livestock. Cattle and sheep emit methane thro

Alliant Energy Corporation is a Madison, Wisconsin-based regulated electric and natural gas utility — publicly traded on NASDAQ (NASDAQ: LNT) as an S&P 500 Utilities component — serving approximately

Altruistiq is a London-based scope 3 emissions intelligence platform founded in 2020 that has raised over $10M in funding. The company serves large enterprises with complex, multi-tier supply chains,

ALT TEX is a materials science and AI company developing sustainable alternatives to conventional synthetic textiles. The fashion and apparel industry is one of the world's largest polluters, heavily

Ameren Corporation is a St. Louis, Missouri-based regulated electric and natural gas utility holding company — publicly traded on the New York Stock Exchange (NYSE: AEE) as an S&P 500 Utilities compon

American Electric Power Company, Inc. (AEP) is a Columbus, Ohio-based regulated electric utility holding company — publicly traded on the NASDAQ (NASDAQ: AEP) as an S&P 500 Utilities component — servi

American Water Works is the largest publicly traded water and wastewater utility company in the United States, founded in 1886 and headquartered in Camden, New Jersey, trading on NYSE (AWK). The compa

Ammobia is developing an electrochemical ammonia synthesis process that produces ammonia at low temperature and pressure using renewable electricity, bypassing the energy-intensive Haber-Bosch process

Amogy develops ammonia-to-power systems that crack ammonia (NH3) into hydrogen on demand and feed it to fuel cells — providing zero-emission power for maritime vessels and, increasingly, data centers.

Amperesand is a solid-state transformer company spun out of Nanyang Technological University (NTU) in Singapore, developing silicon-carbide based SSTs for data centers and grid applications. The compa

AMP Robotics is a Louisville, Colorado-based company that applies AI and robotics to modernize recycling and waste processing, making material recovery more efficient, accurate, and economically viabl

Andium is an industrial Internet of Things (IIoT) company focused on providing edge computing-based monitoring and automation solutions for operators of critical infrastructure in the oil and gas, uti

Antora Energy builds carbon-block thermal batteries that store cheap renewable electricity as ultra-high-temperature heat (up to 1,500°C), then deliver industrial process heat on demand — displacing n

APA Corporation is the holding company for Apache Corporation, a leading independent oil and gas exploration and production company, founded in 1954 and headquartered in Houston, Texas, trading on NYS

Apiday is a Paris-based ESG reporting automation platform designed to help companies navigate the complex and fast-evolving EU sustainability reporting regulatory landscape. The company focuses on aut

Aptera Motors is a Carlsbad, California-based company designing and developing a solar electric vehicle (sEV) that represents a radical rethinking of automotive transportation. The Aptera vehicle feat

Arbor Energy is developing biomass-fired rocket turbines that combust waste biomass at extremely high temperatures, producing supercritical CO2 as a working fluid that drives a turbine — making it a c

Arcadia is a clean energy technology company founded in 2014 that operates a platform connecting consumers with community solar projects and renewable energy products, enabling people who rent, have s

Astro is a United States-based AI-powered renewable energy development company — backed by Y Combinator — building the first AI platform that de-risks and accelerates the early-stage development of so

Astronergy, formally known as Chint New Energy Technology Co., Ltd., is a subsidiary of China''s CHINT Group that specializes in the research, development, and manufacturing of high-efficiency photovo

Atmos Energy Corporation is a Dallas, Texas-based natural gas distribution company — publicly traded on the New York Stock Exchange (NYSE: ATO) as an S&P 500 Utilities component — distributing natural

Atmosic Technologies is a fabless semiconductor company focused on designing ultra-low-power wireless system-on-chip (SoC) solutions for Internet of Things (IoT) devices. Founded in 2016 and headquart

Atom Power is a North Carolina-based energy technology company that developed the world's first commercially available, UL-listed digital solid-state circuit breaker — the Atom Switch. Unlike traditio

Aurora Solar is a San Francisco-based solar technology company founded in 2013 that provides the world's leading solar design and sales software platform for photovoltaic (PV) system installers, contr

AutoGrid is a Redwood City, California-based energy flexibility management software company — acquired by Uplight (Boulder-based energy technology company) in 2023 after raising $160 million from inve

Avalanche Energy is a compact fusion company pursuing a fundamentally different approach from utility-scale fusion projects like ITER: desk-sized reactors that generate power at the point of need. The

Avathon, formerly known as Uptake Technologies, is a Chicago-based industrial AI company that transforms machine and operational data into actionable intelligence for asset-intensive industries. Found

Avetta is an Orem, Utah-based supply chain risk management platform that operates a two-sided network connecting enterprise hiring clients with their contractor and supplier communities for prequalifi

Axross is a Singapore-based energy management company providing AI-driven HVAC (Heating, Ventilation, and Air Conditioning) control systems for industrial manufacturers and commercial buildings across

Baker Hughes Company is a Houston, Texas-based energy technology and oilfield services company — publicly traded on the NASDAQ (NASDAQ: BKR) as an S&P 500 Energy component — providing oilfield service

Base Power is a home battery company that deploys residential battery storage systems (using Tesla Powerwall hardware) and manages them as a grid-interactive virtual power plant. Unlike traditional so

Better Energy is a Danish renewable energy company founded in 2012 and headquartered in Copenhagen, Denmark. The company develops, finances, builds, and operates large-scale solar photovoltaic (PV) po

Beyond Limits is a Glendale, California-based artificial intelligence company that has commercialized AI systems originally developed for NASA and JPL (Jet Propulsion Laboratory) space exploration mis

BeZero Carbon is a carbon credit rating agency founded in 2020 in London that has raised $50M to create the first independent credit rating framework specifically designed for voluntary carbon offsets

Bidgely is an AI-powered energy intelligence platform that helps utility companies personalize engagement with their residential customers — using machine learning to analyze smart meter data and disa

BinSentry installs IoT sensors in grain bins and commodity storage tanks at farms, feed mills, and agri-businesses to continuously monitor inventory levels and grain quality parameters (temperature, m

Blink Charging is a Boca Raton, Florida-based EV charging network operator publicly traded on the Nasdaq under the ticker BLNK. Founded in 2009, Blink has deployed tens of thousands of Level 2 and DC

Bloom Energy Corporation is a San Jose, California-based solid oxide fuel cell manufacturer — publicly traded on the New York Stock Exchange (NYSE: BE) — designing and manufacturing the Bloom Energy S

Blue Frontier is a Fort Lauderdale, Florida-based clean technology company founded in 2021 that has developed a novel air conditioning architecture based on liquid desiccant chemistry — a fundamentall

Blue Polymers is a plastics recycling company established as a joint venture between Republic Services, a leading U.S. environmental services company, and Ravago, a global leader in polymer distributi

Bolder Industries is a sustainable materials company founded in 2012 and headquartered in Carthage, Missouri, focused on transforming end-of-life tires into valuable circular economy materials through

Bolt.Earth is a Bengaluru-based electric vehicle charging and mobility infrastructure company that has built India''s largest and most utilized EV charging network. Founded by Jyotiranjan Harichandan

Boston Metal is a green steel technology company that has developed Molten Oxide Electrolysis (MOE), a breakthrough electrochemical process that converts iron ore directly into liquid metal using elec

Braven Environmental is a North Carolina-based advanced recycling company that processes waste plastics using proprietary pyrolysis technology to convert non-recyclable plastic waste into valuable sec

Bright is a solar energy technology company operating in Mexico and Latin America, providing residential and commercial customers with access to solar power through innovative business models that rem

Brighte is an Australian fintech company that makes solar panels, battery storage, EV chargers, and energy-efficient home improvements accessible and affordable through financing solutions. Founded in

Built Robotics is a San Francisco-based robotics company that transforms conventional heavy construction equipment into autonomous machines by retrofitting standard excavators, pile drivers, and other

C16 Biosciences is a biotechnology company founded in 2017 by David Heller, Irina Gerry, and Harry McNamara and headquartered in New York City. The company developed a proprietary biomanufacturing pla

C3.ai (C3 AI) Energy Management is the enterprise AI application for energy management and optimization from C3.ai, the enterprise AI software company founded by Tom Siebel in 2009. C3 AI Energy Manag

Cala is a climate technology hardware company developing an AI-powered heat pump water heater designed to maximize energy efficiency and minimize carbon emissions for residential homes. Unlike convent

Carbmee is a Berlin-based industrial carbon management platform founded in 2021 that focuses on helping manufacturing companies and industrial enterprises measure and reduce their product-level carbon

CarbonChain is a London-based climate technology company providing AI-powered carbon accounting and emissions tracking for carbon-intensive supply chains — serving metals, mining, and commodities sect

Care Weather is a weather intelligence company that delivers hyperlocal, AI-powered forecasts designed for industries where weather precision at the field or asset level directly affects operational a

CenterPoint Energy is a regulated electric and natural gas utility company serving customers in Indiana, Minnesota, Ohio, and Texas, as well as natural gas distribution in several additional states th

ChargePoint is the world's largest EV charging network, headquartered in Campbell, California, and publicly traded on the NYSE under the ticker CHPT. Founded in 2007, ChargePoint has built a network o

Charge Robotics is a construction robotics startup developing autonomous solar panel installation robots that can place and connect solar panels on large-scale commercial rooftop installations faster

Charm Industrial is a carbon removal company that permanently sequesters carbon dioxide by converting agricultural waste biomass into bio-oil through pyrolysis and injecting it deep underground into g

Chevron is one of the world's largest integrated energy companies, engaged in every aspect of the oil and gas industry including exploration, production, refining, transportation, and marketing of cru

CleanCapital is a clean energy investment and asset management company founded in 2015 and headquartered in New York City, focused on acquiring, managing, and optimizing distributed clean energy proje

Climeworks is a Swiss company and the global leader in commercial direct air capture (DAC) technology, which extracts CO₂ directly from the atmosphere using modular fan-based systems and stores it per

CMS Energy Corporation is a Jackson, Michigan-based regulated electric and gas utility holding company — publicly traded on the New York Stock Exchange (NYSE: CMS) as an S&P 500 Utilities component —

Cognite is a Norwegian industrial software company that provides an AI-native data platform purpose-built for asset-heavy industries such as energy, manufacturing, and utilities. Founded in 2016 as a

Commonwealth Fusion Systems (CFS) is a fusion energy company spun out of MIT's Plasma Science and Fusion Center in 2018, commercializing decades of fusion research through a proprietary approach using

ConocoPhillips is one of the world's largest independent exploration and production companies, tracing its roots to Continental Oil Company (Conoco) founded in 1875 and Phillips Petroleum founded in 1

Consolidated Edison, Inc. is a New York City, New York-based regulated electric, gas, and steam utility holding company — publicly traded on the New York Stock Exchange (NYSE: ED) as an S&P 500 Utilit

Constellation Energy Corporation is a Baltimore, Maryland-based clean energy company — publicly traded on NASDAQ (NASDAQ: CEG) as an S&P 500 Utilities component with a market capitalization of approxi

Coolset is a Dutch climate technology company founded in 2021 that provides sustainability management software specifically designed for the requirements of mid-sized European businesses facing mandat

Corgi builds software that automates and accelerates grid interconnection — the process by which renewable energy projects (solar, wind, storage) apply for and receive permission to connect to the ele

Coterra Energy Inc. is a Houston, Texas-based oil and natural gas exploration and production company — publicly traded on the New York Stock Exchange (NYSE: CTRA) as an S&P 500 Energy component — oper

Critical Loop designs modular microgrid systems that provide flexible industrial energy — combining on-site generation, storage, and smart load management in containerized units that can be deployed a

CubicPV is a US solar technology company formed in 2021 through the merger of 1366 Technologies (direct wafer silicon crystallization pioneer) and Hunt Perovskite Technologies. Headquartered in Bedfor

Cyclic Materials is a Kingston, Ontario-based cleantech company founded in 2021 by Ahmad Ghahreman and Kurt Sarbjit Sauber that has developed a proprietary hydrometallurgical process for recovering ra

Dandelion Energy is a residential geothermal heating and cooling company that designs, installs, and services ground-source heat pump systems for homeowners. Founded in 2017 as a spinout from Google's

Dartboard Energy is an AI market intelligence platform for grid-connected battery storage operators — providing market analytics, revenue optimization strategies, and regulatory guidance that help bat

Devon Energy Corporation is an Oklahoma City, Oklahoma-based oil and natural gas exploration and production company — publicly traded on the New York Stock Exchange (NYSE: DVN) as an S&P 500 Energy co

DG Matrix builds the Interport — a 2.4-megawatt power router for data centers that replaces multiple discrete power conversion devices (UPS systems, transformers, switchgear) with a single intelligent

Diamondback Energy is one of the largest and lowest-cost oil producers in the Permian Basin, founded in 2007 and headquartered in Midland, Texas, trading on Nasdaq (FANG). The company completed the la

Diamond Foundry is a Silicon Valley company pioneering the industrial production of single-crystal diamond wafers for next-generation semiconductor applications. The company operates plasma reactor te

Diligent is a New York-based governance, risk, and compliance (GRC) platform that has become one of the largest providers of board management and ESG software globally. The company serves over 700,000

Dominion Energy, Inc. is a Richmond, Virginia-based regulated electric and natural gas utility holding company — publicly traded on the New York Stock Exchange (NYSE: D) as an S&P 500 Utilities compon

DTE Energy is Michigan's largest integrated energy company and a diversified energy holding company, founded in 1903 as Detroit Edison and headquartered in Detroit, Michigan, trading on NYSE (DTE). Th

Duke Energy Corporation is a Charlotte, North Carolina-based regulated electric utility holding company — publicly traded on the New York Stock Exchange (NYSE: DUK) as an S&P 500 Utilities component —

Eaton Corporation plc is a multinational power management company headquartered in Dublin, Ireland (with operational HQ in Beachwood, Ohio). Founded in 1911, Eaton is one of the world's largest indust

Eavor Technologies developed the Eavor-Loop, a proprietary closed-loop geothermal system that circulates a working fluid through a sealed subsurface radiator, collecting the Earth's natural heat with

Ebb Carbon is a climate technology company founded in 2021 and based in South San Francisco, California, that has developed an electrochemical process to enhance the ocean's natural capacity to absorb

Edison International is a Rosemead, California-based regulated electric utility holding company — publicly traded on the New York Stock Exchange (NYSE: EIX) as an S&P 500 Utilities component — providi

E-Gap is an Italian mobility technology company that operates a mobile, on-demand electric vehicle charging service across major European cities including Milan, Rome, Turin, Bologna, Paris, and Madri

Electric Era is a clean energy company founded by former SpaceX engineers that designs and manufactures AI-driven EV fast charging infrastructure. Its flagship product, the PowerNode, integrates a 120

Electric Hydrogen is a Natick, Massachusetts-based clean energy company founded in 2020 by Raffi Garabedian (former CEO of First Solar) and David Eaglesham. The company designs and manufactures large-

Electrify America is a Reston, Virginia-based EV charging network owned by Volkswagen Group, established as part of Volkswagen's $2 billion environmental mitigation commitment stemming from the 2016 d

Electriphi is a fleet electrification software company that was acquired by Ford Motor Company in 2021 to become the technology foundation for Ford Pro's commercial EV fleet charging solutions. Origin

Element Energy is a battery technology company that develops adaptive, distributed Battery Management Systems (BMS) for first-life and second-life battery applications. Founded in 2019 and headquarter

Emerald AI is a grid flexibility platform that turns AI data centers into dispatchable grid assets by intelligently shifting compute workloads during periods of peak electricity demand — effectively a

Emitwise is a climate technology company founded in 2019 in London that has raised $15M to build enterprise GHG management software with a particular focus on automating the most difficult part of car

EnergyX is a sustainable energy technology company founded in 2018 by Teague Egan and headquartered in Austin, Texas. The company is developing two core technology platforms: LiTAS (Lithium-Ion Transp

EnerVenue is an energy storage company commercializing nickel-hydrogen battery technology originally developed by NASA for satellite power systems. The company raised a $300 million Series B extension

Enevate is an Irvine, California-based battery technology company specializing in silicon-dominant lithium-ion cells designed to enable extreme fast charging (XFC) for electric vehicles. Founded in 20

Enpal is a Berlin-based renewable energy and home electrification company founded in 2017 by Mario Kohle and Jochen Ziervogel that enables homeowners to adopt solar energy, battery storage, heat pumps

Ensyn is a renewable energy technology company headquartered in Ottawa, Canada, that produces low-carbon biofuels from non-food lignocellulosic biomass (wood residues, agricultural waste, and other fo

Entergy Corporation is a New Orleans, Louisiana-based regulated electric utility holding company — publicly traded on the New York Stock Exchange (NYSE: ETR) as an S&P 500 Utilities component — provid

EOG Resources is one of the largest and most profitable independent oil and gas exploration and production companies in the United States, founded in 1989 as Enron Oil & Gas Company and spun off from

EOS Energy is a publicly traded energy storage company founded in 2008 that manufactures zinc-based battery systems as an alternative to lithium-ion for grid-scale and commercial applications. The com

EQT Corporation is a Pittsburgh, Pennsylvania-based natural gas exploration and production company — publicly traded on the New York Stock Exchange (NYSE: EQT) as an S&P 500 Energy component — operati

Equatic is an ocean carbon dioxide removal (CDR) company using seawater electrolysis to simultaneously remove CO2 from seawater (which then absorbs atmospheric CO2 to equilibrate) and produce green hy

Evergy, Inc. is a regulated electric utility serving approximately 1.7 million customers across Kansas and Missouri, formed in 2018 through the merger of Westar Energy and Great Plains Energy. Evergy

Everlane is a San Francisco-based direct-to-consumer fashion brand founded in 2010 by Michael Preysman and Jesse Farmer on a philosophy of radical transparency: the company publicly discloses the cost

Eversource Energy is a Springfield, Massachusetts-based regulated electric and natural gas utility — publicly traded on the New York Stock Exchange (NYSE: ES) as an S&P 500 Utilities component — servi

EVgo is a Los Angeles-based public electric vehicle fast charging network and the largest in the United States. Publicly traded on the Nasdaq under the ticker EVGO, the company operates over 950 fast

EVPassport is a North American electric vehicle charging company founded in 2020, providing hardware, software, and revenue-sharing solutions to property owners across 35 US states, Canada, and Mexico

Exeger is a Swedish deep-technology company founded in 2009 by Giovanni Fili and headquartered in Stockholm, Sweden. The company has developed Powerfoyle — a proprietary photovoltaic solar cell based

Exelon Corporation is a Chicago, Illinois-based regulated electric and gas utility holding company — publicly traded on the NASDAQ (NASDAQ: EXC) as an S&P 500 Utilities component — serving approximate

Exowatt is a clean energy startup founded in 2023 by Hannan Happi and Jack Abraham (Atomic CEO), developing modular, dispatchable solar systems designed to deliver reliable 24/7 power for AI infrastru

Expand Energy Corporation is an Oklahoma City, Oklahoma-based natural gas exploration and production company — publicly traded on the NASDAQ (NASDAQ: EXE) — formed through the October 2024 merger of C

ExxonMobil Corporation is a Spring, Texas-based integrated oil, gas, and energy company — publicly traded on the New York Stock Exchange (NYSE: XOM) as an S&P 500 Energy component and one of the world

Fervo Energy is an enhanced geothermal systems (EGS) company founded to unlock the vast heat energy stored in the Earth's crust at locations that conventional geothermal technology cannot reach. Tradi

FigBytes is an Ottawa-based ESG management and reporting platform that helps enterprises, municipalities, and public sector organizations collect ESG data, track sustainability performance, and genera

Finless Foods is a food biotechnology company founded in 2017 by Mike Selden and Brian Wyrwas and headquartered in Emeryville, California. The company is developing cell-cultured seafood — growing fis

FirstEnergy Corp. is an Akron, Ohio-based regulated electric utility holding company — publicly traded on the New York Stock Exchange (NYSE: FE) as an S&P 500 Utilities component — providing electric

First Solar, Inc. is a Tempe, Arizona-based solar module manufacturer — publicly traded on NASDAQ (NASDAQ: FSLR) as an S&P 500 component — operating as the largest US solar manufacturer and the only v

Fleet Space Technologies is an Australian space and deep technology company founded in 2015 by Flavia Tata Nardini and Matt Pearson, headquartered in Adelaide, South Australia. Fleet Space deploys a c

Forge Nano is a materials science and advanced manufacturing company founded in 2013 by Paul Lichty and headquartered in Thornton, Colorado (near Denver). The company is a pioneer in the commercializa

Form Energy develops iron-air batteries — a long-duration energy storage technology that stores electricity for 100+ hours using iron plates that rust (oxidize) to discharge and reverse the process to

Fourth Power is an MIT-originated thermal energy storage company that stores electricity as heat in graphite blocks at 2,400°C — using molten tin as a heat transfer medium and converting stored heat b

Freeport-McMoRan Inc. is a Phoenix, Arizona-based mining company — publicly traded on the New York Stock Exchange (NYSE: FCX) as an S&P 500 Materials component — operating copper, gold, and molybdenum

GE (General Electric Company) is a diversified industrial technology company that has undergone one of the most dramatic corporate restructurings in American business history, transforming from a mass

GE Digital Grid Solutions (now part of GE Vernova) is an industrial software and technology division providing power grid management software, SCADA/energy management systems (EMS), distribution manag

Generac Holdings Inc. is a Waukesha, Wisconsin-based power generation and energy technology company — publicly traded on the New York Stock Exchange (NYSE: GNRC) as an S&P 500 Industrials component —

General Fusion is a Canadian fusion energy company developing a commercially viable fusion power system based on Magnetized Target Fusion (MTF) technology. Founded with backing from Amazon founder Jef

GE Vernova is a Cambridge, Massachusetts-based global energy equipment and services company — publicly traded on the New York Stock Exchange (NYSE: GEV) — that emerged as an independent entity in Apri

GoodLeap is a financial technology company headquartered in Roseville, California, founded in 2003 (as Paramount Equity) and rebranded as GoodLeap in 2021 to reflect its focus on sustainability-orient

Gradiant is a water technology unicorn providing advanced industrial water treatment solutions to semiconductor fabs, pharmaceutical manufacturers, and food and beverage companies. The company closed

Gradient Comfort makes window-unit heat pumps — plug-in, window-mounted heating and cooling systems that fit in standard window openings — specifically designed for the hardest decarbonization problem

GranBio is a 100% Brazilian industrial biotechnology company founded in 2011, controlled by GranInvestimentos S.A., and headquartered in São Paulo. It operates Brazil''s first commercial-scale second-

Greenly is a French climate tech company founded in 2019 that has raised over $52M to make carbon accounting accessible to businesses of all sizes. The platform automates greenhouse gas inventory prep

GridBeyond is an AI-powered energy management company headquartered in Dublin, Ireland, focused on grid-scale optimization for utilities and large industrial energy consumers. Founded to address the g

GridPoint is a smart energy management company founded in 2003 and headquartered in Arlington, Virginia, that provides AI-driven energy optimization software and IoT hardware for commercial buildings.

Gridware is a grid intelligence company that manufactures and deploys small sensor devices (called Gridware Scouts) that attach to distribution power lines to monitor the electric grid in real time —

GROPYUS is a technology-driven construction company founded in 2019 and headquartered in Vienna, Austria. The company designs and builds sustainable, smart, and energy-efficient multistory residential

Guidehouse is a global AI-led professional services and consulting firm headquartered in McLean, Virginia, formed in 2018 through PricewaterhouseCoopers' sale of its public sector practice to Veritas

Guidewheel is a San Francisco-based manufacturing technology company founded in 2019 by Lauren Dunford and Francis Flynn that has built a plug-and-play FactoryOps platform designed to bring AI-powered

Stegra (formerly H2 Green Steel, rebranded 2024) is a Boden, Sweden-based green steel manufacturer — backed with approximately €6.5 billion in total funding from investors including Schaeffler (€100M

HALIO is a smart glass technology company founded in 2010 by Sam Bergh and headquartered in Hayward, California. The company develops and manufactures electrochromic (dynamic tinting) glass panels tha

Halliburton Company is a Houston, Texas-based oilfield services company — publicly traded on the New York Stock Exchange (NYSE: HAL) as an S&P 500 Energy component — providing products and services fo

Halo Industries is a deep-tech hardware company founded in 2015 and headquartered in Santa Clara, California. The company develops laser-based systems for precision materials processing, with a primar

Halter is a New Zealand-based agricultural technology company that develops solar-powered GPS-enabled cattle collars and farm management software for virtual fencing and animal monitoring. The collars

Harvest Thermal is a home energy technology company founded in 2019 that makes the Pod, a smart thermal storage system that replaces or augments conventional water heaters and home heating equipment.

Heirloom Carbon is one of the only direct air capture (DAC) companies to cross from pilot scale to actual commercial operation in 2026, with its first facility in Shreveport, Louisiana going operation

Helion Energy is a fusion energy company working to develop the first commercially viable nuclear fusion power plant. Founded in 2013 and headquartered in Everett, Washington, Helion has pioneered a u

Heron Power develops solid-state transformers (SSTs) — a semiconductor-based replacement for the century-old copper-and-iron transformers that form the backbone of the electrical grid. The company rai

Highland Electric Fleets is a Massachusetts-based company founded in 2019 that provides turnkey Electrification-as-a-Service (EaaS) solutions for school districts, municipalities, and fleet operators

Hilo is a smart home energy management platform operated by Hydro-Québec that uses AI to coordinate residential smart devices — thermostats, water heaters, EV chargers, and appliances — to reduce elec

Hithium (Xiamen Hithium Energy Storage Technology Co., Ltd.) is a Xiamen, China-based manufacturer of lithium-ion battery cells and systems for stationary energy storage applications. Founded in 2019

Huasun Energy is a solar photovoltaic technology company founded in 2020 and headquartered in Xuancheng, Anhui Province, China. The company focuses exclusively on heterojunction technology (HJT) solar

Hydrostor is the developer of Advanced Compressed Air Energy Storage (A-CAES) — a long-duration storage technology that uses underground caverns to store compressed air, with no lithium, no degradatio

HyLight is a Paris, France-based hydrogen-powered autonomous airship company — backed by Y Combinator (W23) with $3.94 million in Series A funding in April 2024 led by Ring Capital with Y Combinator,

HyperSciences is a Washington State-based deep-technology company developing projectile-based drilling and penetration systems that use low-cost chemical energy to accelerate consumable projectiles to

HyWatts is an early-stage clean energy company developing zero-emission hydrogen fuel cell power systems for a range of commercial and industrial applications. The company's technology targets use cas

ICF International is a global consulting and technology services company founded in 1969 and headquartered in Reston, Virginia, trading on NASDAQ under the ticker ICFI. The firm reported revenue of $1

Impossible Metals is a deep-sea mining technology company developing autonomous underwater robots designed to collect polymetallic nodules from the ocean floor. These nodules, found at depths of 4,000

Industrial Sun is a solar energy project development company founded and headquartered in Austin, Texas, specializing in the development of large-scale utility and commercial solar installations for i

Inertia Enterprises is a fusion energy company founded by Twilio co-founder Jeff Lawson and Annie Kritcher, the National Ignition Facility lead scientist who oversaw the 2022 fusion ignition breakthro

Infinitum is a clean technology company founded in 2016 by Ben Schuler and headquartered in Austin, Texas. The company has developed a fundamentally new electric motor architecture using printed circu

Infleqtion (formerly ColdQuanta) is a Boulder, Colorado-based quantum technology company that develops quantum computing hardware, quantum sensing systems, and quantum networking components using ultr

Innovafeed is a global biotechnology company and insect protein producer that uses black soldier fly (BSF) larvae to convert food waste and agricultural byproducts into high-quality proteins and oils

Iontra is an advanced battery technology company founded in 2017 by James Trevey and headquartered in Boulder, Colorado. The company has developed a patented charge control platform that improves the

I-Pulse is a deep-technology company that has developed and commercialized a high pulsed power platform — a technology that converts electrical energy into extremely powerful yet precise electrical di

Itron is a global technology company founded in 1977 and headquartered in Liberty Lake, Washington, that provides smart metering hardware, grid-edge intelligence, and network infrastructure for electr

Jetti Resources is a Vancouver-based mining technology company that has developed a proprietary catalytic hydrometallurgical process to extract copper from chalcopyrite — the world''s most abundant co

Jord BioScience develops microbial and biochemical soil amendments that enhance the natural processes by which soil bacteria fix atmospheric nitrogen and solubilize soil phosphorus — reducing farmers'

Keeling Labs is a Los Angeles-based battery AI company — backed by Y Combinator with $3 million in seed funding from YC, GMO Venture Partners, FoundersX Ventures, and Climate Capital — developing rein

Kinder Morgan, Inc. is a Houston, Texas-based natural gas pipeline and terminal infrastructure company — publicly traded on the New York Stock Exchange (NYSE: KMI) as an S&P 500 Energy component — own

Kitekraft is a German airborne wind energy (AWE) company developing autonomous energy kites that fly at altitudes of 200–600 meters — where wind resources are significantly stronger and more consisten

KoBold Metals was founded in 2018 with a mission to accelerate the discovery of critical minerals needed for the clean energy transition — copper, cobalt, nickel, and lithium — using AI to find deposi

Kpler is a global commodity intelligence company that provides real-time trade data, market analytics, and research services for physical and financial participants in energy, agricultural, and dry bu

Kraken Technologies is the technology arm of Octopus Energy, one of the UK's fastest-growing energy retailers, and was built to solve the deep inefficiency of legacy energy software that forces utilit

Kyoto Fusioneering is a Japanese fusion energy engineering company focused on developing and commercializing the reactor components and subsystems required to build practical fusion power plants. Foun

Landis+Gyr is a Swiss energy technology company providing smart meters, grid edge intelligence systems, and energy management software to electric, gas, and water utilities globally. Founded in 1896 (

LanzaTech Global is a carbon recycling company that transforms carbon-rich industrial waste gases into sustainable fuels, chemicals, and materials using a proprietary gas fermentation bioprocess. Foun

Leap is an energy technology company founded in 2015 that builds software infrastructure enabling distributed energy resources to participate in wholesale electricity markets. The company's platform a

LevelTen Energy is a clean energy transaction infrastructure company founded in 2016 and headquartered in Seattle, Washington. Its platform serves as the world''s largest online hub for buyers, seller

Lilac Solutions is an Oakland, California-based direct lithium extraction (DLE) technology company — backed with over $318 million in total funding including a $145 million Series C led by T. Rowe Pri

Lunar Energy develops residential battery systems and the virtual power plant (VPP) software that orchestrates them — enabling aggregated home batteries, EV chargers, and smart appliances to collectiv

Lyten is a San Jose, California-based battery technology company developing next-generation lithium-sulfur batteries using a proprietary 3D graphene architecture. Founded in 2015 by Dan Cook and Micha

Mainspring Energy is a Menlo Park, California-based clean power company founded in 2010 by Shannon Miller, Adam Simpson, and Matt Svrcek. The company's flagship product is the Mainspring Linear Genera

Malta Inc is a long-duration energy storage company founded in 2018 and backed by Alphabet's X development lab and Breakthrough Energy Ventures. The company develops a grid-scale electrothermal energy

Marathon Petroleum Corporation is a Findlay, Ohio-based petroleum refining and midstream company — publicly traded on the New York Stock Exchange (NYSE: MPC) as an S&P 500 Energy component — operating

Marvel Fusion is a Munich-based nuclear fusion startup founded in 2019 by Moritz von der Linden, Stephanie Lüdecke, and Ingo Reuter. The company is developing a laser-driven inertial confinement fusio

MaverickX is a chemical technology company engineering advanced solutions for resource extraction from challenging feedstocks — developing PetroX, a chemical formulation that enhances oil recovery fro

Metafuels is a Swiss sustainable aviation fuel (SAF) company developing an e-SAF production process using the methanol-to-jet "aerobrew" method, which achieves up to 90% lifecycle CO2 reduction compar

Misfits Market is an online grocery company founded in 2018 on a mission to reduce food waste by connecting consumers with produce and grocery items that are edible but cosmetically imperfect, oversup

Monarch Tractor is an agricultural technology company headquartered in Livermore, California, founded in 2018 by Praveen Penmetsa, Mark Schwager, Carlo Mondavi, and others. The company designs and man

MP Materials Corp. is the only fully integrated rare earth mining and processing company in the United States, headquartered in Las Vegas, Nevada. The company operates the Mountain Pass rare earth min

Muon Space builds end-to-end Earth observation satellites optimized for climate and weather data — integrating hardware design, manufacturing, launch, and data analytics into a single company. The com

Mura Technology is a UK-based advanced recycling company that developed Hydro-PRT (Hydrothermal Plastic Recycling Technology), a process that uses supercritical water — water above its critical temper

Nanotech Energy is a Los Angeles-based advanced materials and battery company that develops and manufactures graphene-enhanced lithium-ion batteries designed to be non-flammable, higher-performing, an

Natron Energy was a Holland, Michigan-based sodium-ion battery manufacturer — the first US company to achieve commercial-scale production of sodium-ion batteries — that permanently ceased operations i

Net0 is a carbon management platform designed for SMEs and mid-market companies that need to measure, report, and reduce their carbon emissions but lack the dedicated sustainability teams of large ent

Newcleo is a London and Paris-based nuclear technology company developing next-generation Lead-cooled Fast Reactors (LFR) designed to run on recycled nuclear waste as fuel. Founded in 2021 by Stefano

Newlight is a materials science and biotechnology company founded in 2003 by Mark Herrema and Kenton Kimura and headquartered in Huntington Beach, California. The company has developed a proprietary p

Newmont Corporation is a Denver, Colorado-based gold and copper mining company — publicly traded on the New York Stock Exchange (NYSE: NEM) as an S&P 500 Materials component — operating as the world's

NextEra Energy is the world's largest producer of electricity from wind and solar sources and one of the leading regulated utilities in the United States, founded in 1925 as Florida Power & Light Comp

Nextracker Inc. is a Fremont, California-based solar tracker and software company — publicly traded on the NASDAQ (NASDAQ: NXT) — providing single-axis solar tracking systems, tracker control software

Nira Energy is a Denver-based renewable energy software company providing grid capacity mapping and interconnection analysis tools that help solar, battery storage, and data center developers identify

Niron Magnetics is an advanced materials company founded in 2014 and headquartered in Minneapolis, Minnesota, as a spinout from the University of Minnesota. The company has developed a proprietary pro

NiSource Inc. is a Merrillville, Indiana-based fully regulated utility company — publicly traded on the New York Stock Exchange (NYSE: NI) as an S&P 500 component — serving approximately 3.3 million n

Nobell Foods is a San Francisco-based food biotechnology company founded in 2016 by Magi Richani, with a mission to produce cheese that is indistinguishable from animal-derived dairy — without using a

Normative is a Swedish climate technology company founded in 2014 that has raised $35M to provide corporate carbon accounting software based on the most comprehensive emissions factor database availab

Noveon Magnetics is a U.S. rare earth magnet manufacturer that has developed a proprietary Magnet-to-Magnet (M2M) recycling process, converting end-of-life neodymium magnets from electronics, applianc

NRG Energy is one of the largest competitive power companies in the United States, providing electricity and home services to approximately 7.5 million residential, commercial, and industrial customer

Nuvation Energy is an energy storage technology company founded in 2010 that designs high-performance battery management systems and complete energy storage solutions for grid-scale, commercial, and i

Occidental Petroleum is an integrated oil and gas company with leading positions in the Permian Basin, Middle East, and Latin America, founded in 1920 in Los Angeles and now headquartered in Houston,

Octopus Energy is a UK-based global energy company that supplies affordable renewable electricity and gas to residential and business customers while operating Kraken Technologies, a proprietary AI-po

Ohmium is a green hydrogen electrolyzer manufacturer with an operational factory in Bengaluru, India that is actively shipping PEM (proton exchange membrane) electrolyzers at commercial volumes in 202

Oklo Inc. is a next-generation nuclear fission company developing advanced compact fast fission power plants that use spent nuclear fuel as their primary energy source. Founded in 2013 by Jacob DeWitt

Omnidian is a Seattle-based clean energy company that provides performance assurance and asset management services for residential and commercial solar energy systems. Its platform combines 24/7 remot

OneD Battery Sciences is a US-based battery materials company developing SINANODE, a silicon anode technology designed to significantly increase the energy density of lithium-ion batteries for electri

ONEOK, Inc. is one of the largest midstream natural gas and liquid hydrocarbons infrastructure companies in the United States, founded in 1906 as Oklahoma Natural Gas Company in Tulsa, Oklahoma, where

Optera is a Denver-based supply chain sustainability platform that helps enterprises manage scope 3 emissions through structured supplier engagement programs. The company serves mid-market and large e

Oracle Utilities is the software division of Oracle Corporation (NYSE: ORCL) providing mission-critical operational software to electric, gas, and water utility companies worldwide — including Custome

Orbio Earth is a climate technology company operating a satellite-based methane emissions monitoring platform — using proprietary satellite data analysis to detect, quantify, and attribute methane lea

osapiens is a Mannheim, Germany-based enterprise software platform that enables companies to manage regulatory compliance, sustainability reporting, and operational efficiency. Founded in 2018 by Albe

OVO Energy is a Bristol-based UK retail energy supplier founded in 2009 by Stephen Fitzpatrick. OVO built its brand on competitive green energy tariffs, exceptional customer service, and innovative sm

Paces is an agentic AI company building software and services to accelerate power and energy infrastructure project development — using AI-powered analysis to help developers, utilities, and investors

Pachama is an AI-driven forest carbon monitoring company founded in 2018 with the mission of restoring nature as a solution to climate change. The company built a proprietary technology platform combi

Pacific Fusion is an American fusion energy company developing a magnetized target fusion (MTF) approach to generating clean, affordable power. Unlike the large-scale, high-field magnetic confinement

Paebbl is a Dutch climate tech company founded to commercialize carbon mineralization — a process that permanently converts captured CO2 into solid carbonate minerals used in construction materials. T

Palmetto Clean Technology is a residential solar and clean energy company founded in 2010 that operates a technology platform connecting homeowners with solar installation professionals and providing

Pano AI is a wildfire detection and situational awareness company that deploys high-elevation cameras equipped with AI to detect smoke and alert first responders to potential wildfires in real time. T

Pathzero is a climate technology company founded in 2020 and headquartered in Sydney, Australia, that provides an emissions management platform designed to help businesses measure, manage, and reduce

Persefoni is a climate management and accounting platform company founded in 2020 that has raised over $100M to build the enterprise-grade carbon management infrastructure that large companies need fo

PG&E Corporation is a San Francisco, California-based regulated electric and gas utility holding company — publicly traded on the New York Stock Exchange (NYSE: PCG) as an S&P 500 Utilities component

Phase Biolabs is a biological sciences company developing microorganism-based products that improve crop performance and reduce agriculture's environmental footprint. The company applies synthetic bio

Phillips 66 is a Houston, Texas-based diversified energy manufacturing and logistics company — publicly traded on the New York Stock Exchange (NYSE: PSX) as an S&P 500 Energy component — operating 13

Pinnacle West Capital Corporation is a Phoenix, Arizona-based regulated electric utility holding company — publicly traded on the New York Stock Exchange (NYSE: PNW) as an S&P 500 Utilities component

Pixion Batteries is an early-stage clean technology company developing advanced dry electrode manufacturing solutions for lithium-ion batteries. The company's proprietary technology uses a roll-to-rol

Plan A is a Berlin-based sustainability management platform founded in 2017 that has raised over €20M in funding. The company provides an integrated software solution for corporate carbon accounting,

Polymateria is a British technology company founded in 2015 and headquartered in London, United Kingdom. The company has developed proprietary Biotransformation technology — a polymer additive system

Powin is a battery energy storage system provider founded in 2012 and headquartered in Portland, Oregon, designing and delivering large-scale battery storage solutions for utilities, grid operators, i

PPL Corporation is an Allentown, Pennsylvania-based regulated electric utility holding company — publicly traded on the New York Stock Exchange (NYSE: PPL) as an S&P 500 Utilities component — deliveri

Prisma Photonics is an Israeli deep technology company founded in 2017 by Yotam Levy, Yoav Peled, and Ronen Dar, headquartered in Tel Aviv, Israel. The company commercializes distributed fiber optic s

Prometheus Fuels is a clean energy company founded in 2019 by Rob McGinnis and headquartered in Santa Cruz, California. The company has developed a proprietary electrochemical process to capture carbo

Public Service Enterprise Group (PSEG) is a diversified energy company and the parent of Public Service Electric and Gas Company (PSE&G), New Jersey's largest regulated electric and gas utility, found

Pylon is a Cairo, Egypt-based infrastructure management platform providing water and electricity utility companies in emerging markets with smart metering, loss reduction analytics, and revenue manage

Quanta Services, Inc. is a Houston, Texas-based specialty contractor — publicly traded on the New York Stock Exchange (NYSE: PWR) as an S&P 500 Industrials component — providing comprehensive infrastr

Quilt makes premium whole-home heat pumps designed by alumni of Apple, Tesla, and Nest — applying consumer hardware product excellence to HVAC systems that have historically been designed by mechanica

Raptor Maps is a solar energy intelligence company providing AI-powered analytics and inspection services for utility-scale solar farms. Founded in 2015 by MIT engineers, the company processes aerial

Rebellyous Foods is a Seattle-based food technology company founded in 2017 by Christie Lagally, focused on making plant-based chicken products cost-competitive with conventional poultry through a pro

Redwood Materials is a Carson City, Nevada-based company building a domestic circular supply chain for lithium-ion battery materials. Founded in 2017 by JB Straubel — co-founder and former CTO of Tesl

Remora is a Detroit-based climate technology company building carbon capture devices that attach to semi trucks and freight trains — capturing CO2 from diesel exhaust while simultaneously reducing soo

Renew Financial is a specialty finance company focused on Property Assessed Clean Energy (PACE) financing — a government-backed financing mechanism that enables homeowners to fund energy efficiency up

Rheom Materials (formerly Bucha Bio) is a Houston-based advanced materials startup focused on replacing fossil fuel-based plastics and synthetic leather with high-performance, biologically derived alt

RoadRunner is a commercial waste management company founded in 2014 and headquartered in Pittsburgh, Pennsylvania, that uses proprietary logistics technology and data analytics to help businesses mana

Rondo Energy is a clean energy company founded in 2020 focused on industrial decarbonization through thermal energy storage. The company builds brick-based heat batteries that store cheap renewable el

Rothy's is a San Francisco-based sustainable fashion brand that makes washable shoes, bags, and accessories from recycled plastic bottles and marine plastic. Founded in 2012, the brand pioneered a kni

Rubicon Carbon is a carbon credit investment company founded in 2022 in New York by former Goldman Sachs commodities executives, raising $285M to build a institutional-grade platform for high-quality

RUUF is a Santiago, Chile-based solar marketplace platform connecting Chilean homeowners and SMBs with vetted solar installers and financing partners — operating Latin America's first vertically integ

Sakuu Corporation is a San Jose, California-based battery manufacturing technology company that developed Kavian® — the world''s first platform for 3D printing complete lithium-ion battery electrodes

SAP for Utilities is SAP SE's (NYSE: SAP) industry-specific software suite for electric, gas, and water utilities — providing customer information systems (CIS), meter-to-cash billing, asset managemen

Sceye Inc. is a material science and aerospace company founded in 2014 and headquartered near Albuquerque, New Mexico, that designs and operates high-altitude platform stations (HAPS) — autonomous, so

SLB (formerly Schlumberger) is the world's largest oilfield services company, providing technology, information solutions, and integrated project management services for the global oil and gas industr

Schneider Electric EcoStruxure is the IoT-enabled open architecture and platform of Schneider Electric SE (EPA: SU) — the Paris-based global energy management and industrial automation company with €3

Seabound is a maritime carbon capture technology company developing systems that capture CO2 from ship exhaust directly onboard vessels, storing it as calcium carbonate for offloading at port — enabli

Sealed is a home decarbonization company founded in 2012 that offers a unique pay-from-savings financing model for home energy upgrades including insulation, air sealing, heat pumps, and smart control

Sempra is a leading energy infrastructure holding company with regulated utility operations in California and international liquefied natural gas (LNG) export infrastructure. The company's two Califor

Sense is a Cambridge, Massachusetts-based home energy monitoring company providing a hardware-software system that installs in the home's electrical panel and uses machine learning to identify individ

SHINE Technologies is a Janesville, Wisconsin-based company that is commercializing fusion technology for practical near-term applications — starting with medical isotope production, nuclear waste cha

Siemens Energy AG is a Munich, Germany-based energy technology company — listed on the Frankfurt Stock Exchange (ETR: ENR), partially owned by Siemens AG (25%+ stake) following the September 2020 spin

Sila Nanotechnologies (operating as Sila) is an Alameda, California-based advanced materials company that has developed a silicon-based anode material to replace graphite in lithium-ion batteries. The

Sinai Technologies is a climate technology company founded in 2019 and based in San Francisco that has raised $50M to build software for enterprise decarbonization planning and execution. The platform

SINAI Technologies is an enterprise software company providing carbon management and decarbonization planning tools to corporations, utilities, and industrial companies navigating the complexities of

SmartHelio is a Swiss AI company providing predictive analytics and remote monitoring software for utility-scale and commercial solar plants — using machine learning to detect anomalies, predict fault

SolarAfrica operates a unique solar energy delivery model for South African businesses that eliminates the on-site installation barrier: rather than building rooftop solar at each customer location, S

Solfácil is Brazil's leading B2B2C solar energy financing platform, connecting solar panel installers and distributors with homeowners and businesses seeking affordable financing for rooftop solar sys

Solubag is a sustainable packaging company founded in Chile that produces water-soluble alternatives to conventional plastic bags using polyvinyl alcohol (PVA), a material derived from natural substan

Solugen is a biomanufacturing company that blends enzymes and metal catalysts to produce industrial chemicals from plant-based feedstocks — replacing petroleum-derived chemicals with bio-based equival

Sortera Technologies is a materials technology and advanced recycling company headquartered in Chicago, Illinois, that has developed an AI-powered sorting system capable of separating mixed scrap meta

Soteria Battery Innovation Group (Soteria BIG) is a Greenville, South Carolina-based battery safety technology company operating at the intersection of materials science, manufacturing, and intellectu

The Southern Company is one of America's largest regulated electric and natural gas utilities, serving approximately 9 million electric and gas customers across Georgia, Alabama, Mississippi, and Illi

SPAN is a San Francisco-based company that designs and manufactures smart electrical panels for residential and commercial applications. Founded in 2018 by ex-Tesla engineers, SPAN''s flagship product

SparkCognition is an industrial AI company founded in 2013 in Austin, Texas, built on the mission of applying machine learning to predict and prevent equipment failures in critical infrastructure. The

Sphera is a Chicago-based integrated risk management platform that provides enterprise-grade environmental, health and safety (EHS), operational risk, and supply chain risk solutions to large industri

SPIC Hydrogen Energy Co., Ltd. is a technology-focused subsidiary of China''s State Power Investment Corporation (SPIC), one of the country''s five major state-owned power generation groups. Establish

Splight is a grid software company whose Machine Learning-based Dynamic Congestion Management system helps utilities squeeze significantly more clean energy through existing transmission infrastructur

Standard Nuclear is building the first industrial-scale TRISO (TRi-structural ISOtropic particle) fuel manufacturing line in the United States — a picks-and-shovels play across the entire advanced fis

Stem is a clean energy storage and AI energy management platform that installs commercial and industrial battery storage systems and manages them with Athena, its AI-powered energy optimization softwa

Stem Inc is a publicly traded clean energy technology company founded in 2009 that operates Athena, an AI-driven energy management platform for commercial and industrial battery storage systems. The p

Sublime Systems is a Somerville, Massachusetts-based materials company that has developed an electrochemical process to produce ordinary portland cement (OPC) without the CO2 emissions inherent in con

Submer is a data center thermal management and immersion cooling company founded in 2015 and headquartered in Barcelona, Spain. The company manufactures single-phase and two-phase immersion cooling sy

Sunfire is a Dresden-based German company and Europe''s leading manufacturer of industrial electrolysers for green hydrogen and synthetic fuel (e-fuel) production. Founded in 2010, Sunfire develops tw

Sun King (formerly Greenlight Planet) is the world's largest off-grid solar energy company, providing affordable solar lanterns, home systems, and inverters to households and businesses in communities

SunPower is a San Jose, California-based residential and commercial solar energy company — acquired out of Chapter 11 bankruptcy by Complete Solaria for $45 million in September 2024, which rebranded

Sustain.Life is a Kalamazoo, Michigan-based sustainability management platform that was acquired by Wolters Kluwer in 2023, bringing it into one of the world's largest professional information service

Svante is a Canadian cleantech company founded in 2007 and headquartered in Burnaby, British Columbia, specializing in scalable carbon capture technology for industrial point-source emissions. The com

Sweep is a carbon management platform co-headquartered in London and Paris, founded in 2021 and having raised $73M in funding. The company helps large enterprises and mid-market companies measure, man

Sylvera is a carbon ratings company founded in 2020 in London that has raised $57M to bring transparency and independent analysis to the voluntary carbon market. The company rates carbon offset projec

Sympower aggregates demand flexibility from industrial and commercial energy users — factories, cold storage facilities, data centers, and retail — into grid services that help transmission system ope

TAE Technologies is the world's most-funded private fusion energy company, founded in 1998 by Norman Rostoker and Michl Binderbauer and headquartered in Foothill Ranch, California. The company is deve

Targa Resources Corp. is a leading independent midstream energy company providing natural gas gathering, compression, processing, transportation, and NGL (natural gas liquids) fractionation and export

TemperPack is a Richmond, Virginia-based sustainable packaging company developing plant-based, compostable alternatives to traditional expanded polystyrene (styrofoam) for temperature-sensitive shipme

Terabase Energy is a Berkeley, California-based clean energy technology company founded in 2018 by Matt Campbell and Chris Needham that builds digital and robotic tools to dramatically accelerate the

Terawatt Infrastructure is the only company that owns and operates the full infrastructure stack for autonomous electric vehicle fleets — charging, depot operations, and grid services — at commercial

Terranox AI is a Y Combinator W26 company applying machine learning to mineral and uranium exploration, using decades of accumulated geoscience data to identify high-probability discovery targets fast

TerraPower is a next-generation nuclear energy company founded in 2006 by Bill Gates, Nathan Myhrvold, and other former Microsoft leaders with a mission to develop advanced nuclear reactor technology

Texas Pacific Land Corporation is one of the largest private landowners in the state of Texas, with approximately 880,000 surface acres concentrated in the heart of the Permian Basin — the most prolif

ThermoShade is an early-stage climate technology company developing passive cooling shade panels designed to reduce outdoor ambient temperatures in exposed public and commercial spaces without requiri

Tokamak Energy is a UK-based private fusion energy company developing compact spherical tokamak reactors and high-temperature superconducting (HTS) magnet technology as a faster, lower-cost path to co

Tomorrow.io is the world''s leading weather intelligence and climate resilience platform, combining proprietary satellite data, advanced AI modeling, and agentic decision support to help organizations

Torus builds an integrated home energy platform combining solar panels, battery storage, and EV charging with AI software that optimizes energy flows in real time across all devices. The Torus Stack s

Treehouse Energy is a residential clean energy company focused on simplifying the process of adopting solar panels, battery storage, and home electrification upgrades for homeowners. The company acts

Trina Solar is a global photovoltaic solar solutions company founded in 1997 and headquartered in Changzhou, Jiangsu Province, China. The company manufactures high-efficiency solar modules, energy sto

Turntide Technologies is a clean energy and advanced motor technology company founded in 2013 (as Software Motor Company) by Ryan Morris and headquartered in San Jose, California. The company develops

Twelve is a carbon transformation company that converts captured carbon dioxide into the chemicals, fuels, and materials typically made from fossil fuels. Based in Berkeley, California, Twelve''s core

Type One Energy is a fusion energy company headquartered in Madison, Wisconsin, founded in 2019 by scientists and engineers from the University of Wisconsin-Madison's fusion research program. The comp

Unity Aluminum is an advanced materials manufacturer focused on producing eco-friendly aluminum alloy products for the automotive, aerospace, and industrial manufacturing sectors. The company manufact

Uplight is a clean energy technology company providing SaaS software to utilities — demand response programs, energy efficiency analytics, behavioral energy programs, and electric vehicle managed char

Urbint is an AI-powered field risk management company founded in 2015 and headquartered in New York City. The company's platform is designed for utilities and infrastructure operators — including gas

Valero Energy Corporation is the world's largest independent petroleum refiner and ethanol producer, operating 15 petroleum refineries in the United States, Canada, and the United Kingdom with a combi

Varaha is the leading carbon credit developer from the Global South, working with 170,000+ smallholder farmers across 1.7 million acres in India, Nepal, Bhutan, Bangladesh, and Ivory Coast to generate

Verdagy is a clean energy technology company founded in 2021 and headquartered in Moss Landing, California, developing advanced water electrolysis systems for large-scale green hydrogen production. Th

Verkor is a French battery cell manufacturer focused on producing low-carbon lithium-ion batteries for electric vehicles and stationary energy storage. Founded in 2020 and based in Grenoble, France, V

Vesta is an ocean carbon removal company developing Ocean Alkalinity Enhancement (OAE) using olivine — a common volcanic mineral that naturally weathers to increase ocean alkalinity, causing the ocean

Vestiaire Collective is the global category leader in authenticated pre-owned luxury fashion resale. Founded in Paris in 2009, the platform enables buyers and sellers worldwide to trade designer cloth

Viridi Parente is a Buffalo, New York-based battery energy storage company that develops modular, fail-safe lithium-ion battery energy storage systems (BESS) specifically engineered for installation i

Virtual Peaker is an energy software company founded in 2016 that provides a demand flexibility and distributed energy resource management platform for electric utilities. The software enables utiliti

Vista Power is an energy technology company building AI-driven energy storage and grid management solutions for utilities, independent power producers, and commercial energy developers. As grids world

Vistra Corp. is the largest competitive (non-regulated) power generator and energy retailer in the United States, headquartered in Irving, Texas. Formerly known as Luminant, Vistra emerged from the ba

Vistra Corp. is the largest competitive (non-regulated) power generator and energy retailer in the United States, headquartered in Irving, Texas. Formerly known as Luminant, Vistra emerged from the ba

Voltaiq is a Berkeley, California-based battery intelligence software company that provides data analytics and AI-powered insights for organizations managing lithium-ion battery systems. Founded in 20

Voltus is a demand response and distributed energy resource management company founded in 2016 that aggregates commercial and industrial electricity users into virtual power plants that grid operators

WeaveGrid is a clean energy software company founded in 2018 by Apoorv Bhargava and Raj Abhyanker, and headquartered in San Francisco, California. The company builds grid intelligence software that en

WEC Energy Group, Inc. is a regulated electric and natural gas utility holding company serving approximately 4.7 million customers across Wisconsin, Illinois, Michigan, and Minnesota. Its principal ut

The Williams Companies, Inc. is one of the largest natural gas infrastructure companies in the United States, owning and operating approximately 33,000 miles of pipelines, 38 processing facilities, an

Workrise (rebranding to RigUp in September 2025) is a workforce management and source-to-pay platform purpose-built for the energy industry. Founded in 2014 as RigUp and originally headquartered in Au

Wren is a personal climate action platform that helps individuals measure their carbon footprint, understand the sources of their emissions, and offset their impact through a monthly subscription that

Xage Security is a Palo Alto, California-based cybersecurity company founded in 2017 by Roman Arutyunov and Susanto Irwan. The company specializes in zero-trust security solutions for critical infrast

Xcel Energy Inc. is a regulated electric and natural gas utility holding company serving approximately 3.7 million electricity customers and 2.1 million natural gas customers across eight states: Colo

X-energy is a nuclear energy company developing the Xe-100 pebble-bed high-temperature gas-cooled small modular reactor (SMR), the closest advanced reactor to actual construction groundbreaking in the

Xoople is a Spanish startup building the earth data infrastructure layer for AI. Founded in 2019, the company has spent seven years developing its tech stack around satellite data and cloud provider i

Xscape Photonics is a photonic computing hardware company developing scalable, high-bandwidth photonic solutions aimed at addressing the power and bandwidth limitations of traditional electronic inter

Zanskar is an AI-powered geothermal exploration company that uses machine learning to analyze subsurface data — seismic surveys, gravity measurements, magnetotellurics, and satellite remote sensing —

Zap Energy is a nuclear fusion company based in Everett, Washington, pioneering a radically simpler approach to fusion power. Unlike most fusion efforts that rely on complex and expensive magnetic con

Zephyr Fusion is an early-stage nuclear fusion company targeting the decarbonization of industrial heat — the process heat used in steel mills, cement plants, chemical facilities, and other heavy indu

ZeroAvia is an aviation company developing hydrogen-electric powertrains that replace conventional jet engines with fuel cells that combine hydrogen and oxygen to generate electricity, powering electr

ZincFive is an energy storage company founded in 2016 and headquartered in Tualatin, Oregon, that designs and manufactures nickel-zinc (NiZn) battery systems for uninterruptible power supply (UPS) app

Zitara Technologies is a San Francisco-based battery intelligence and management software company — backed by Y Combinator (W20) with $29-48.93 million raised including a $17 million Series AA in Dece

Zum is a Redwood City, California-based company that is modernizing student transportation for school districts across the United States. Founded in 2015, Zum provides school districts with a fully in

Zunder is Spain''s premier ultra-fast electric vehicle charging network, founded to accelerate EV adoption across Southern Europe. The company operates a proprietary and partner charging network with