Top list · Europe
Energy efficiency startups in Europe
43 energy efficiency startups in Europe have raised money in rounds we track. These are the 43 that have raised the most, $3.0B between them, with the United Kingdom the most common home.
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COX GroupCOX Group provides solutions for development and management of water resources as well as services for energy generation and transmission.COX Group provides solutions for development and management of water resources as well as services for energy generation and transmission.
Founded -Seville, Spain$2.6Blast round Jan 2026 - 2
Bordeaux Métropole ÉnergiesBordeaux Métropole Énergies helps the Bordeaux metropolitan area handle the energy transition issue.Bordeaux Métropole Énergies helps the Bordeaux metropolitan area handle the energy transition issue.
Founded -Bordeaux, France$101Mlast round May 2025 - 3
Eku EnergyEku Energy is a globally diversified and technology enabled energy storage business.Eku Energy is a globally diversified and technology enabled energy storage business.
Founded 2022London, United Kingdom$60Mlast round May 2025 - 4
QpinchQpinch is a Belgian startup and scale-up focused on industrial energy efficiency and waste heat recovery.Qpinch is a Belgian startup and scale-up focused on industrial energy efficiency and waste heat recovery.
Founded 2012Antwerpen, Belgium$35Mlast round May 2024 - 5
GradyentGradyent is a Rotterdam-based software company founded in 2019, specializing in Energy Technology and Artificial Intelligence.Gradyent is a Rotterdam-based software company founded in 2019, specializing in Energy Technology and Artificial Intelligence.
Founded 2019Rotterdam, Netherlands$31Mlast round Apr 2025 - 6
Energy Drive SystemsEnergy Drive Systems as a Service, Energy EfficiencyEnergy Drive Systems as a Service, Energy Efficiency
Founded -London, United Kingdom$27Mlast round Jun 2025 - 7
Tonik EnergyTonik Energy was a UK-based renewable electricity and gas supplier founded in 2015 and headquartered in Birmingham.Tonik Energy was a UK-based renewable electricity and gas supplier founded in 2015 and headquartered in Birmingham.
Founded 2015Birmingham, United Kingdom$17Mlast round Feb 2019 - 8
Eddy GridEddy Grid is a Dutch energy technology startup based in Utrecht, founded in 2023.Eddy Grid is a Dutch energy technology startup based in Utrecht, founded in 2023.
Founded 2023Utrecht, Netherlands$11Mlast round May 2026 - 9
PulsivPulsiv is a UK-based company specializing in power electronics and solar technology.Pulsiv is a UK-based company specializing in power electronics and solar technology.
Founded 2013Milton, United Kingdom$7.6Mlast round Jul 2026 - 10
CenergistCenergist is a specialist energy and water efficiency company.Cenergist is a specialist energy and water efficiency company.
Founded 2012Washington, United Kingdom$7.4Mlast round May 2022 - 11
AirEx TechnologiesAirEx Technologies is a climate tech company based in London, UK, focused on addressing climate change and fuel poverty through innovative smart home solutions.AirEx Technologies is a climate tech company based in London, UK, focused on addressing climate change and fuel poverty through innovative smart home solutions.
Founded 2016London, United Kingdom$7.1Mlast round May 2026 - 12
SaveMoneyCutCarbonSaveMoneyCutCarbon (SMCC) is a UK-based provider of clean technology and sustainability solutions, focused on enhancing energy and water efficiency for businessSaveMoneyCutCarbon (SMCC) is a UK-based provider of clean technology and sustainability solutions, focused on enhancing energy and water efficiency for business
Founded 2010Bury Saint Edmunds, United Kingdom$6.3Mlast round May 2023 - 13
MagnomaticsMagnomatics is a UK-based clean technology company focusing on renewable energy and energy efficiency.Magnomatics is a UK-based clean technology company focusing on renewable energy and energy efficiency.
Founded 2006Sheffield, United Kingdom$5.7Mlast round Oct 2023 - 14
TewkeTewke is a London-based climate technology and home automation company dedicated to enhancing domestic energy efficiency and simplifying smart-home control.Tewke is a London-based climate technology and home automation company dedicated to enhancing domestic energy efficiency and simplifying smart-home control.
Founded 2019London, United Kingdom$5.6Mlast round Apr 2026 - 15
Measurable.energymeasurable.energy is a UK-based clean-tech and PropTech company that focuses on AI-driven plug load management and energy efficiency solutions for commercial bumeasurable.energy is a UK-based clean-tech and PropTech company that focuses on AI-driven plug load management and energy efficiency solutions for commercial bu
Founded 2018Reading, United Kingdom$5.2Mlast round Aug 2025 - 16
vibooviboo is a Swiss proptech startup founded in 2022, based in Dübendorf, Switzerland.viboo is a Swiss proptech startup founded in 2022, based in Dübendorf, Switzerland.
Founded 2022Duebendorf, Switzerland$4.7Mlast round Sept 2025 - 17
TribosonicsTribosonics is a Sheffield-based company founded in 2006 that specializes in ultrasonic and embedded sensing technologies.Tribosonics is a Sheffield-based company founded in 2006 that specializes in ultrasonic and embedded sensing technologies.
Founded 2006Sheffield, United Kingdom$3.9Mlast round Oct 2023 - 18
Future MotorsFuture Motors aim is to provide businesses with the energy efficient green technologies and secure a strong commercial return on investment.Future Motors aim is to provide businesses with the energy efficient green technologies and secure a strong commercial return on investment.
Founded 2018United Kingdom$3.6Mlast round Feb 2024 - 19
FurbnowFurbnow is a home energy efficiency and retrofit company based in Birmingham, England.Furbnow is a home energy efficiency and retrofit company based in Birmingham, England.
Founded 2022Birmingham, United Kingdom$3.6Mlast round Jul 2026 - 20
HeatioHeatio provides affordable renewable energy to homeowners.Heatio provides affordable renewable energy to homeowners.
Founded 2022United Kingdom$3.5Mlast round Jun 2024 - 21
TokWiseTokWise is a technology company based in Sofia, Bulgaria, that specializes in software and AI models for renewable energy.TokWise is a technology company based in Sofia, Bulgaria, that specializes in software and AI models for renewable energy.
Founded 2019Sofia, Bulgaria$3.2Mlast round Nov 2023 - 22
Octopus LabOctopus Lab is a French deep tech company focused on predictive software solutions that improve indoor air quality (IAQ), energy efficiency, and environmental sOctopus Lab is a French deep tech company focused on predictive software solutions that improve indoor air quality (IAQ), energy efficiency, and environmental s
Founded 2017La Madeleine, France$3.1Mlast round Jul 2022 - 23
UniSCoolUniSCool is an IT consulting firm that offers energy efficiency, sustainability, heat transfer, and thermal management services.UniSCool is an IT consulting firm that offers energy efficiency, sustainability, heat transfer, and thermal management services.
Founded -Lleida, Spain$3.0Mlast round Feb 2026 - 24
Vibrant EnergyA green energy provider developing high-efficiency solar power plants to supply electricity to commercial & industrial customersA green energy provider developing high-efficiency solar power plants to supply electricity to commercial & industrial customers
Founded 2015Hyderabad, United Kingdom$2.9Mlast round Jun 2008 - 25
SnuggSnugg is working on a platform to assist homeowners in identifying, financing, and implementing energy efficiency upgrades in their houses.Snugg is working on a platform to assist homeowners in identifying, financing, and implementing energy efficiency upgrades in their houses.
Founded 2022Edinburgh, United Kingdom$2.5Mlast round Jan 2024 - 26
Ecomer dataECOMER Data is a software company established in 2024 as a subsidiary of the Francbord Group.ECOMER Data is a software company established in 2024 as a subsidiary of the Francbord Group.
Founded -Nantes, France$2.3Mlast round May 2025 - 27
Nextgen NanoBreakthrough technology replaces existing solutions with biopolymers to develop solar cells that produce energy with unrivalled efficiency.Breakthrough technology replaces existing solutions with biopolymers to develop solar cells that produce energy with unrivalled efficiency.
Founded 2017United Kingdom$2.2Mlast round Jan 2025 - 28
Neuville Grid DataNeuville Grid Data is a UK-based energy-tech company focused on enhancing power grid stability and efficiency.Neuville Grid Data is a UK-based energy-tech company focused on enhancing power grid stability and efficiency.
Founded 2017London, United Kingdom$2.0Mlast round Dec 2024 - 29FuelSaveFuelSave is a disruptive energy efficiency enhancement company that provides innovative solutions.
FuelSave is a disruptive energy efficiency enhancement company that provides innovative solutions.
Founded 2012Walldorf, Germany$1.6Mlast round Jun 2022 - 30
Fifty EnergyFifty Energy is a Swedish clean energy technology company founded in 2023, based in Åre.Fifty Energy is a Swedish clean energy technology company founded in 2023, based in Åre.
Founded 2023Are, Sweden$1.6Mlast round Aug 2025 - 31JFS Howla Hay BiogasHowla Hay Farm is a 200 acre site, situated near to Guisborough
Howla Hay Farm is a 200 acre site, situated near to Guisborough
Founded 2012United Kingdom$1.2Mlast round Mar 2013 - 32
ProtioProtio is a digital PropTech platform based in Athens, Greece, focused on real estate renovation, energy efficiency upgrades, and property investment.Protio is a digital PropTech platform based in Athens, Greece, focused on real estate renovation, energy efficiency upgrades, and property investment.
Founded 2021Athens, Greece$1.1Mlast round May 2025 - 33
PydroPYDRO GmbH is a German cleantech startup founded in 2016, headquartered in Rostock, with an additional location in Hamburg.PYDRO GmbH is a German cleantech startup founded in 2016, headquartered in Rostock, with an additional location in Hamburg.
Founded 2016Rostock, Germany$1.1Mlast round May 2025 - 34
NOX EnergyNOX Energy is a Belgian-American startup founded in 2024, dedicated to enhancing energy efficiency by connecting devices like heat pumps to electricity markets.NOX Energy is a Belgian-American startup founded in 2024, dedicated to enhancing energy efficiency by connecting devices like heat pumps to electricity markets.
Founded 2024Antwerp, Belgium$1.0Mlast round Dec 2024 - 35
Pipeline OrganicsPipeline Organics is a cleantech startup based in Nottingham, UK, founded in 2021.Pipeline Organics is a cleantech startup based in Nottingham, UK, founded in 2021.
Founded 2021Nottingham, United Kingdom$1.0Mlast round Aug 2024 - 36
VASS TechnologiesVASS Technologies is an Italian construction and building-tech company specializing in high-efficiency roofing solutions.VASS Technologies is an Italian construction and building-tech company specializing in high-efficiency roofing solutions.
Founded 2012Carmagnola, Italy$780Klast round Oct 2012 - 37
Flint EngineeringFlint Engineering is dedicated to providing sustainable energy efficiency solutions.Flint Engineering is dedicated to providing sustainable energy efficiency solutions.
Founded 2012Hailsham, United Kingdom$689Klast round Feb 2024 - 38
QwikSenseQwikSense is a Netherlands-based company that specializes in workplace environment analytics and smart building monitoring.QwikSense is a Netherlands-based company that specializes in workplace environment analytics and smart building monitoring.
Founded 2014Bussum, Netherlands$291Klast round May 2015 - 39
bettervest GmbHbettervest GmbH is a German crowd-investing and crowdlending platform based in Frankfurt am Main, founded in 2012.bettervest GmbH is a German crowd-investing and crowdlending platform based in Frankfurt am Main, founded in 2012.
Founded 2012Frankfurt, Germany$229Klast round Aug 2024 - 40
HyWavesHyWaves is a clean technology company founded in 2022, focused on making green hydrogen more accessible and affordable.HyWaves is a clean technology company founded in 2022, focused on making green hydrogen more accessible and affordable.
Founded -Cranfield, United Kingdom$140Klast round Jun 2024 - 41
KestrixKestrix is a climate technology and energy efficiency startup founded in 2022 by Lucy Lyons and Matt Goodridge.Kestrix is a climate technology and energy efficiency startup founded in 2022 by Lucy Lyons and Matt Goodridge.
Founded 1991London, United Kingdom$136Klast round Jun 2025 - 42
LightricityWe enable a scalable and sustainable IoT by providing the world’s highest efficiency light energy harvesting technologyWe enable a scalable and sustainable IoT by providing the world’s highest efficiency light energy harvesting technology
Founded 2017Oxford, United Kingdom$62Klast round Jun 2023 - 43
EINBLIQ.IOEINBLIQ.IO helps media companies to reliably deliver excellent video streaming services at lower cost while optimizing for energy efficiencyEINBLIQ.IO helps media companies to reliably deliver excellent video streaming services at lower cost while optimizing for energy efficiency
Founded 2021Munich, Germany$50Klast round Feb 2023
Seville, Spain
Bordeaux, France
London, United Kingdom
Antwerpen, Belgium
Rotterdam, Netherlands
Duebendorf, Switzerland
Sofia, Bulgaria
Walldorf, Germany
Are, Sweden
Athens, Greece
Carmagnola, ItalyCompanies whose own description names this theme, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.
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CSBiotech startups in Europe1,665 companies · $22B
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NGBig data startups in Europe964 companies · $31B
V
SCGEnergy providers startups in Europe953 companies · $41BS
EP
SClimate tech startups in Europe756 companies · $25B
SK
FCFintech startups in Europe749 companies · $30B
A
CI
YCustomer service startups in Europe720 companies · $13BN
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TTransport startups in Europe697 companies · $28B