Startup list · Europe
Novel energy startups in Europe
Below are the top European novel energy startups, ranked by total funding raised. Together the 50 companies on this list have raised a combined $7.2B. The strongest hubs are United Kingdom, Germany, France.
$7.2Bcombined funding · top 50
United Kingdomtop hub
50companies shown
6fast growing
Ranked by total funding · Updated 2026-06-26 · Source: Dealroom
| # | Company | Founded | HQ | Funding |
|---|---|---|---|---|
| 1 |
 S
Sunfire
Industrial electrolyzers for green hydrogen production.
|
2010 | Dresden, Germany | $900M |
| 2 |
 N
Newcleo$25M+ revenue
Developing a new industrial standard of clean, safe and inexhaustible energy production from Nuclei
|
2021 | Lyon, France | $701M |
| 3 |
 S
Skeleton Technologies
Global technology leader in supercapacitor energy storage, enabling electrification and reducing CO2 emissions
|
2009 | Tallinn, Estonia | $334M |
| 4 |
 F
Focused Energy
Combining U.S. fusion science with German laser engineering to deliver modular, commercially viable fusion from proven ignition technology
|
2021 | Darmstadt, Germany | $327M |
| 5 |
 T
Tokamak Energy
Commercial fusion energy via spherical tokamaks and HTS magnets.
|
2009 | Milton, United Kingdom | $294M |
| 6 |
 E
Energy Vault$100M+ revenue
Energy Vault SA offers ground-breaking energy storage technology utilizing fundamental principles of science to deliver a storage solution
|
2017 | Lugano, Switzerland | $280M |
| 7 |
 I
Intelligent Energy
Zero-emission hydrogen Proton Exchange Membrane fuel cell systems
|
2001 | Nanpantan, United Kingdom | $250M |
| 8 |
 L
Lhyfe$25M+ revenue
Developer, investor, and supplier of 100% green hydrogen for mobility and industry
|
2019 | Nantes, France | $249M |
| 9 |
 P
Proxima FusionFast growing
Designing optimised stellarator fusion reactors
|
2023 | Munich, Germany | $199M |
| 10 |
 C
CORE-POWER
Clean energy technology for marine transport
|
2018 | London, United Kingdom | $195M |
| 11 |
 N
Nyobolt$25M+ revenue
Represent a paradigm shift – delivering super high discharge power and ultrafast charge
|
2020 | Cambridge, United Kingdom | $183M |
| 12 |
 M
Marvel Fusion
Marvel Fusion develops fusion energy using low-neutronic fuels, short-pulsed lasers, and nanostructured targets for efficient, scalable solutions
|
2019 | Munich, Germany | $167M |
| 13 |
 E
Exeger
A Swedish deep tech company inspired by nature, because nature is the most technologically advanced ecosystem
|
2009 | Stockholms kommun, Sweden | $152M |
| 14 |
 C
cylibFast growing
End-to-end lithium-ion battery recycling recovering all materials
|
2022 | Aachen, Germany | $143M |
| 15 |
 J
Jimmy
Designs and operates atomic thermal generators to massively decarbonize industry
|
2020 | Paris, France | $142M |
| 16 |
 F
First Light Fusion
Inspired by the only natural example of inertial confinement on Earth, First Light Fusion is developing a practical pathway to fusion energy using the simplest machine possible
|
2011 | Yarnton, United Kingdom | $135M |
| 17 |
 O
Oxford Photovoltaics
Designs and manufactures hybrid organic photovoltaic systems for building integrated applications
|
2010 | Yarnton, United Kingdom | $125M |
| 18 |
 C
CorPower Ocean
Wave Power. To Power the planet
|
2012 | Stockholms kommun, Sweden | $125M |
| 19 |
 R
RIFTFast growing
Circular iron fuel technology for industrial decarbonization.
|
2020 | Eindhoven, Netherlands | $121M |
| 20 |
 E
Elcogen
A manufacturer of efficient and high-performance fuel cells to help enable a clean energy future
|
2011 | Tallinn, Estonia | $118M |
| 21 |
 I
ITEN
Develops, manufactures, and sells micro-batteries which combine the advantages of both batteries and supercapacitors
|
2011 | Dardilly, France | $110M |
| 22 |
 N
NHOA$100M+ revenue
Clean, Smart, Decentralised Energy Storage with hydrogen batteries
|
2005 | Paris, France | $106M |
| 23 |
 N
NexWafe
Low-carbon, ultra-thin and highly-efficient silicon wafers for photovoltaics
|
2015 | Freiburg, Germany | $102M |
| 24 |
 H
Hystar
Makes advanced PEM electrolysers for large scale green hydrogen production
|
2021 | Bærum, Norway | $97M |
| 25 |
 E
Echion Technologies
The world’s leading niobium anodes for Li-ion batteries
|
2017 | Cambridge, United Kingdom | $96M |
| 26 |
 H
Hydrogenious LOHC Technologies
Develops a new technology for hydrogen storage in Liquid Organic Hydrogen Carriers (LOHC)
|
2013 | Erlangen, Germany | $96M |
| 27 |
 E
Energy Dome$25M+ revenue
Develops a low-cost and efficient system for long-duration electricity storage using liquid CO2
|
2020 | Milan, Italy | $91M |
| 28 |
 A
Altilium Metals
Proprietary recycling process extracts strategic metals from spent electric vehicle batteries
|
2020 | Colchester, United Kingdom | $84M |
| 29 |
 B
Blykalla
Lead-cooled small modular reactors for baseload power
|
2013 | Stockholms kommun, Sweden | $83M |
| 30 |
 I
ITM Power$25M+ revenue
Designs and manufactures electrolysers based on proton exchange membrane technology to produce green hydrogen
|
2000 | Sheffield, United Kingdom | $76M |
| 31 |
 A
Addionics
Provides specialised improved rechargeable batteries by redesigning their electrode architecture
|
2017 | London, United Kingdom | $73M |
| 32 |
 B
Bramble Energy
Designs and manufactures high-performance, low-cost, fuel cell stacks
|
2016 | Crawley, United Kingdom | $73M |
| 33 |
 C
CustomCells
Development and series production of electrodes, electrolytes and Battery Cells
|
2012 | Itzehoe, Germany | $69M |
| 34 |
 B
Basquevolt
Solid-state battery technology for mass electrification
|
2021 | Vitoria, Spain | $67M |
| 35 |
 C
Copenhagen Atomics
Providing cheap, green and abundant energy to drive growth and properity for mankind
|
2015 | Gladsaxe Municipality, Denmark | $61M |
| 36 |
 O
Oxis Energy
Oxis Energy develops battery technology that can be used in a wide range of applications, such as powering electric vehicles
|
2000 | Clifton Hampden, United Kingdom | $61M |
| 37 |
 H
HydrogenPro
Specialises in supplying customised hydrogen plants
|
2013 | Porsgrunn, Norway | $61M |
| 38 |
 N
Norsepower
Reduces the environmental impact of shipping by providing efficient, easy to use and reliable auxiliary wind propulsion for ships
|
2012 | Helsinki, Finland | $57M |
| 39 |
 H
Hydro Wind Energy
Fresh water and stored energy, powered by offshore wind.
|
2018 | London, United Kingdom | $56M |
| 40 |
 R
Renaissance FusionFast growing
Renaissance Fusion builds on the success of stellarator experiments, makes them reactor-ready by quadrupling the magnetic field and simplifies them using proprietary High-Temperature Superconductors manufacturing and flowing liquid-metal walls
|
2020 | Fontaine, France | $52M |
| 41 |
 S
SCW Systems
Developing supercritical water gasification technology for clean energy production
|
2013 | Alkmaar, Netherlands | $51M |
| 42 |
 L
LeydenJar Technologies
Ultra-thin pure-silicon anodes enabling batteries with much greater energy density, faster charging, and lower CO₂ output
|
2016 | Leiden, Netherlands | $49M |
| 43 |
 S
Steady EnergyFast growing
On a mission to redefine the energy landscape, drive the nuclear industry forward, and empower societies to embrace a sustainable future
|
2023 | Rauma, Finland | $48M |
| 44 |
 N
NAWAH
Innovative, economically competitive, reliable and environmentally friendly Ultra-Fast Carbon battery and applied nanotechnology
|
2013 | Voiron, France | $48M |
| 45 |
 T
Thorizon
Molten salt reactors converting nuclear waste into energy
|
2018 | Amsterdam, Netherlands | $47M |
| 46 |
 S
Saule Technologies
Inkjet-printed, flexible perovskite solar cell technology.
|
2014 | Warsaw, Poland | $46M |
| 47 |
 P
PowerCell Sweden$25M+ revenue
Develops and produces fuel cell stacks and systems
|
2008 | Göteborgs Stad, Sweden | $46M |
| 48 |
 A
Altris
Develops a new sodium-ion battery cathode material that is made entirely of abundant and environmental materials
|
2017 | Uppsala kommun, Sweden | $43M |
| 49 |
 T
Transmutex
Recycles nuclear waste to create carbon-free nuclear energy
|
2019 | Vernier, Switzerland | $41M |
| 50 |
 H
Hiiroc
Developing and commercialising its plasma torch technology in the production of hydrogen from biomethane, flare gas and natural gas through Thermal Plasma Electrolysis
|
2020 | Hull, United Kingdom | $40M |
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