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Climate news, grouped by story, and evidence-led Green Scores for the companies behind it. Independent and self-funded, with no sponsors and no paid placement.

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Climate companies

327 companies

Ranked by the ClimateTicker Green Score: who genuinely helps, and who to watch. How we score companies

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Malta Inc
Energy storageCambridge, MA, USAlphabet X spin-off developing pumped heat (electro-thermal) long-duration energy storage using molten salt and antifreeze, with $122 million raised and a demonstration project underway in Spain.49Mixed / Improving
Nuveen
Asset managerNew York, USTIAA's investment management arm and one of the largest responsible-investment managers globally, offering dedicated ESG fixed-income, equity, and real-assets strategies.49Mixed / Improving
Scottish Water
Water & sewerage utilityDunfermline, United KingdomStatutory corporation wholly owned by the Scottish Government, providing water and sewerage services to 2.46 million households and 150,000 businesses across Scotland; formed in 2002 from a merger of three regional water authorities.49Mixed / Improving
Severn Trent Plc
SVTWater & sewerage utilityCoventry, United KingdomFTSE 100 water and sewerage company serving 4.6 million households across the Midlands and north of England, repeatedly sanctioned for sewage spills and storm overflow releases.49Mixed / Improving
TerraPower
Nuclear / SMRBellevue, United StatesTerraPower, co-founded by Bill Gates, is developing the Natrium sodium-cooled fast reactor with integrated molten-salt thermal storage, currently under construction at the Kemmerer Power Station in Wyoming.49Mixed / Improving
ZELP
AgritechLondon, UKDevelops wearable cattle devices that continuously measure enteric methane emissions and catalytically oxidise them, reducing livestock methane output at the source.49Mixed / Improving
Connected Kerb
EV chargingLondon, UKUK on-street public EV charging network targeting residents without private driveways; raised £65M from the UK National Wealth Fund and Aviva Investors in 2025.48Mixed / Improving
ESS Tech
GWHEnergy storageWilsonville, OR, USManufacturer of long-duration iron flow battery energy storage systems using iron, salt, and water for utility-scale and commercial applications.48Mixed / Improving
LanzaJet
Sustainable aviation fuelDeerfield, USProduces sustainable aviation fuel from ethanol using patented alcohol-to-jet (ATJ) technology at its Freedom Pines commercial-scale facility in Georgia.48Mixed / Improving
OXCCU
Sustainable aviation fuelOxford, UKUniversity of Oxford spin-out converting CO2 and hydrogen into sustainable aviation fuel via a patented single-step Fischer-Tropsch process, with a pilot facility operational at Oxford Airport.48Mixed / Improving
Recycleye
Recycling / circularLondon, United KingdomDeploys AI-vision robotic picking systems in materials recovery facilities to automate waste sorting, improving purity and recovery rates for recyclable streams.48Mixed / Improving
Respira International
Nature-based solutionsLondon, United KingdomLondon-based impact carbon finance firm providing long-term upfront project finance to REDD+, reforestation, regenerative agriculture, and blue carbon developers globally.48Mixed / Improving
Stem Inc
STEMEnergy storageSan Francisco, CA, USAI-driven energy storage software company whose Athena platform forecasts demand and optimises dispatch of battery storage assets for commercial and utility customers.48Mixed / Improving
Worn Again Technologies
Recycling / circularNottingham, United KingdomChemically recycles mixed polyester-cotton textile waste and PET packaging into high-purity raw materials — polyester and cellulose — that re-enter fiber and plastic supply chains.48Mixed / Improving
Bombora Wave Power
Wave energyPembroke Dock, United KingdomDeveloper of the submerged membrane-based mWave wave energy converter, with a 1.5 MW demonstration project in Pembrokeshire, Wales, and a hybrid InSPIRE platform combining mWave with offshore wind.47Mixed / Improving
Electrify America
EV chargingReston, Virginia, USVolkswagen-funded US public fast-charging network operating over 5,600 DC fast chargers at 1,080+ locations across the US and Canada.47Mixed / Improving
Eos Energy Enterprises
EOSEEnergy storageEdison, NJ, USDesigns and manufactures Znyth zinc-based long-duration battery energy storage systems for utility-scale and microgrid applications, offering 3 to 12 hours of discharge.47Mixed / Improving
HIF Global
E-fuels and synthetic fuelsHouston, USInternational electrofuel company producing power-to-liquid e-SAF, e-gasoline, and e-methanol from green hydrogen and captured CO2 at facilities in Chile and Texas.47Mixed / Improving
NET Power
NPWRCarbon removalDurham, NC, USAUS clean-energy company licensing the Allam-Fetvedt Cycle, which combusts natural gas with pure oxygen and supercritical CO₂ to generate zero-emission, 24/7 dispatchable power with integrated CCS.47Mixed / Improving
Tomorrow.io
Weather intelligenceBoston, USTomorrow.io operates an AI-native weather intelligence platform and proprietary satellite constellation that provides real-time and predictive weather data to help enterprises manage operational risk from severe weather.47Mixed / Improving
Wallbox
WBXEV chargingBarcelona, SpainSpanish EV charging hardware and energy management company listed on the NYSE, with home, commercial and public charging products including bidirectional V2G chargers sold globally.47Mixed / Improving
Agrimetrics
AgritechHarpenden, UKUK agricultural data marketplace enabling farmers, agribusinesses, and researchers to share, access, and monetise farm and environmental datasets to drive precision and sustainable agriculture.46Mixed / Improving
Finite Carbon
Nature-based solutionsPhiladelphia, Pennsylvania, USANorth America's largest forest carbon offset developer with 60+ Improved Forest Management projects covering nearly four million acres in both voluntary and California compliance markets.46Mixed / Improving
FlexGen Power Systems
Energy storageDurham, NC, USBattery energy storage software and services company whose HybridOS energy management platform supports over 25 GWh of BESS across 200 projects, expanded via acquisition of Powin's assets in 2025.46Mixed / Improving
Greyparrot
Recycling / circularLondon, United KingdomProvides AI-powered waste analytics hardware and software that continuously tracks waste composition on conveyor belts, giving recyclers real-time data to optimise sorting and compliance.46Mixed / Improving
SIMEC Atlantis Energy
SAETidal energyEdinburgh, United KingdomDeveloper and operator of tidal stream energy projects, owning the 6 MW MeyGen array in the Pentland Firth — the world's largest operational tidal stream installation — with CfD contracts for 59 MW of further expansion.46Mixed / Improving
Storegga
Carbon removalLondon, UKUK developer of large-scale CCS and BECCS infrastructure, leading the Acorn CCS project in Scotland and building CO₂ transport and storage hubs across the UK, Norway, and US.46Mixed / Improving
Affinity Water
Water utilityUK's largest water-only company by revenue and population, supplying drinking water to 3.9 million people across the London commuter belt, east and south-east England; owned by Allianz Capital Partners (36.6%), HICL Infrastructure (36.6%) and DIF (26.8%).45Mixed / Improving
Arcadia
Energy dataWashington DC, USEnergy intelligence platform aggregating utility data from 2,000+ utilities to enable businesses and developers to build clean energy products and generate accurate ESG energy reporting.45Mixed / Improving
Blink Charging
BLNKEV chargingMiami Beach, Florida, USOwner, operator and provider of EV charging equipment and networked services across the United States and internationally.45Mixed / Improving
FloodFlash
Parametric flood insuranceLondon, UKFloodFlash provides parametric flood insurance that pays out instantly when a sensor detects floodwater reaching a pre-agreed depth, covering high-flood-risk commercial properties that traditional insurers decline.45Mixed / Improving
Holcim
HOLNCementZug, SwitzerlandThe world's largest cement and building materials company, operating in over 70 countries and marketing low-carbon ECOPact products while still accounting for around 1.5% of global CO2 emissions.45Mixed / Improving
Hydrosat
Satellite water monitoringWashington, USHydrosat uses thermal infrared satellite imagery to measure crop water stress and evapotranspiration at field level, enabling precision irrigation recommendations and drought risk management for agriculture and food security.45Mixed / Improving
Northumbrian Water Group
Water & sewerage utilityDurham, United KingdomWater and sewerage company serving 2.7 million customers in north-east England and 1.7 million in Essex and Suffolk (trading as Essex & Suffolk Water), 75% owned by CK Infrastructure Holdings with 25% held by KKR.45Mixed / Improving
BWX Technologies
BWXTNuclear / SMRLynchburg, United StatesBWX Technologies manufactures nuclear propulsion systems and fuel for the US Navy and is a key commercial supplier of reactor components, pressure vessels, and nuclear services for both existing plants and advanced reactor programmes.44Mixed / Improving
Enagas
ENGGas utility / LNGMadrid, SpainEnagas is Spain's gas transmission system operator, managing the country's main gas pipeline network and three LNG regasification terminals, serving as a key European import hub.44Mixed / Improving
ubitricity
EV chargingOperator of the UK's largest on-street EV charging network, converting lampposts into charge points across British cities; wholly owned by Shell since February 2021.44Mixed / Improving
Dendra Systems
Nature-based solutionsOxford, United KingdomOxford-based AI and drone ecology platform enabling large-scale ecosystem restoration and monitoring, managing 70,000+ hectares for mining, industrial, and conservation clients worldwide.43Mixed / Improving
NuScale Power
SMRNuclear / SMRCorvallis, United StatesNuScale Power is the first SMR developer to receive NRC design certification for its modular 77 MWe VOYGR light-water reactor, targeting utilities and industrial customers globally.43Mixed / Improving
Velocys
Sustainable aviation fuelOxford, UKUK-based Fischer-Tropsch technology licensor enabling commercial production of power-to-liquid SAF and e-fuels from waste and renewable feedstocks.43Mixed / Improving
Benchmark Labs
Agricultural climate forecastingSan Diego, USBenchmark Labs uses AI to produce asset-specific microclimate weather forecasts for agriculture, renewable energy, and land management, correcting biases in grid-level models to deliver field-precision predictions.42Mixed / Improving
Meati Foods
Alt-proteinBoulder, CO, USFerments non-GMO mycelium at commercial scale to produce whole-cut meat alternatives with the fibre profile, protein density, and fibrous texture of whole-muscle meat.42Mixed / Improving
Mission Barns
Alt-proteinSan Francisco, CA, USCultivates pork fat cells in proprietary bioreactors to produce USDA- and FDA-approved Mission Fat, a cultivated fat ingredient for plant-based meat products.41Mixed / Improving
Zero Petroleum
Synthetic fuelsLondon, UKUK synthetic fuel startup producing carbon-neutral e-fuels via Fischer-Tropsch synthesis from atmospheric CO2 and green hydrogen, achieving the world's first RAF synthetic fuel flight in 2021.41Mixed / Improving
1PointFive
Carbon removalHouston, TX, USAOccidental's DAC subsidiary operating STRATOS — the world's largest direct air capture facility in Texas — using Carbon Engineering's technology acquired in 2023.High greenwashing risk40Mixed / Improving
Anglian Water Services
Water & sewerage utilityWater and sewerage company serving 6 million customers across eastern England, owned by the Osprey Consortium of global infrastructure funds.High greenwashing risk40Mixed / Improving
Baker Hughes Company
BKROil & gasHouston, TX, United StatesOilfield technology and services company with industrial and energy technology divisions; revenues remain predominantly tied to oil and gas extraction and LNG despite some emerging clean-energy offerings.High greenwashing risk40Mixed / Improving
BMW Group
BMWAutomakerMunich, GermanyGerman premium automaker selling iX, i4, i5, and i7 fully electric models alongside a large ICE and PHEV portfolio under the BMW, MINI, and Rolls-Royce brands.High greenwashing risk40Mixed / Improving

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