UK's Energy & Nuclear sector is booming. This year’s list of the best 118 UK Energy & Nuclear startups is an eclectic mix of hyper-growth scaleups, small creative startups and everything in between.
The last update was made on March 15, 2023.
Curated by @gonsanchezs
UK 10+ employees Fast-growing
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Learn moreBeZero Carbon is here to build markets and environmental assets, starting with the Voluntary Carbon Market.
Altruistiq provides a platform that enables enterprises to automate sustainability data measurement, management, and exchange.
TrueCircle is building a marketplace to support waste processing facilities in selling the verified material they reclaim.
Cervest is building an AI-first platform to help businesses, governments and growers adapt to climate volatility, and protect our planet.
Shaping the future of energy markets
Puraffinity develops precision materials to target chemicals, with an initial focus on PFAS in water
FabricNano is a cell-free biomanufacturing company that develops biocatalysts to unlock the future of biochemistry.
Satellite Vu An Earth Observation and satellite imagery analytics company deriving insights into economic activity
Nous is a software company that deals with household utilities.
Foodsteps is a london-based startup that has developed a platform to help the food sector reduce its carbon footprint.
Sylvera develops machine learning-based tools to track the performance of carbon offsets.
Supercritical is a software platform that helps businesses reach carbon net zero and tackle the climate crisis.
Shellworks is a biotech startup on a mission to make plastic waste a thing of the past.
Octopus Energy builds technology that reduces the cost of energy to improve the customer experience.
Octopus Energy builds technology that reduces the cost of energy to improve the customer experience.
Britishvolt will deliver sustainable, low-carbon batteries on the roadmap to decarbonisation
Newcleo, the futurable energy.
Climate X delivers climate risk-related ratings and asset level financial impacts for extreme weather events linked to climate change.
AI-based computer vision solutions to power next generation robotics and smart systems for the waste management industry.
Manufacture Of Electricity Distribution And Control Apparatus
The most user-friendly way to charge your car anywhere
Bramble Energy is an innovator energy technology company that designs and manufactures high-performance, low-cost, and fuel cell stack
OpenSensors is an internet of things company that builds a connected world that puts people first.
Emitwise is an AI-powered carbon management platform that helps businesses in tracking and managing their carbon footprint.
Qflow is a cloud-based tool that automates the capture, digitisation and analysis live construction data.
Itero creates profitable waste management solutions.
Seabound is a carbon capture technology company.
Abatable is the robo-advisor for high quality carbon offsetting.
Iduna is an innovative car charging scheme.
A platform enabling concrete providers to manage concrete quality better, reduce waste, save money and slash CO2 emissions.
ML technology to plan and operationalize Sustainability & Net Zero Carbon ambitions; balancing People, Planet & Profit.
Iduna is an innovative car charging scheme.
Piclo develop software to make our electricity grids smart, flexible and sustainable.
Piclo develop software to make our electricity grids smart, flexible and sustainable.
Polymateria is a London-based startup advancing science to help nature deal with plastic pollution.
WeVee is a fully integrated electric vehicle price comparison and leasing platform.
Nexeon is an electronics company that develops and manufactures lithium-ion batteries to reduce carbon anode energy inefficiency.
PlanetWatchers is a geospatial intelligence and enterprise natural resource monitoring service.
Plastic Energy offers a global and sustainable solution to prevent plastic pollution.
Breathe Battery Technologies is a developer of electric vehicle battery charging control software for automotive manufacturers.
Bright is an online recruitment network that connects graduates, undergraduates and professionals with suitable job opportunities.
Breathe Battery Technologies is a developer of electric vehicle battery charging control software for automotive manufacturers.
IONATE is a technology company developing next-generation Hybrid Intelligent Transformers.
IONATE is a technology company developing next-generation Hybrid Intelligent Transformers.
AI powered Enterprise Net Zero Intelligence Platform - Helping enterprises to digitize and accelerate their net zero journey
Econic Technologies develops new catalysts and processes for the manufacture of polymers from CO2.
Software for the energy transition
Standard Gas produce a high quality synthetic gas from a wide range of non recyclable waste feedstock.
Powering mega-buildings and homes with clean energy generated on-site using new thin-film solar, overcoming weight and aesthetic challenges.
React Native apps for pioneering businesses.
Greenpixie measures and understands cloud emissions and provides the tools to demystify the environmental impact of cloud computing.
Carbon Clean Solutions develops CO2 separation technology for industrial and gas treating applications.
EcoHedge was founded to empower every company with the tools they need to become a leader in the fight against climate change.
Thallo uses blockchain technology to revolutionize and democratize the way individuals and businesses buy, sell and trade carbon offsets.
Hometree exists to make home ownership simple & sustainable
Zeplug offers charging solutions for electric vehicles along with maintenance services.
Nyobolt is a developer of high-powered battery technology used to serve automotive applications.
Simply Blue Group is a marine project developer focused on floating wind initiatives.
BOXT is involved in the supply and installation of boilers, air conditioning and electric vehicle chargers through the online store.
Expect is the decarbonisation management platform for large enterprises and heavy industries.
Pioneer of energy storage, DC micro-grid power and aggregate electricity grid services in the UK
Hypetex manufactures coloured carbon fibre using sustainable colourisation materials.
B2B Marketplace for construction waste, bulky materials and equipment hire.
WASE provides a decentralized sanitation system with the goal of accelerating the global adoption of circular waste treatment.
Ev.energy is a smart charging software platform for electric vehicles to reduce carbon emissions and costs.
Brill Power is a clean-tech platform that develops cutting-edge battery management technology.
Oxwash is a provider of sustainable on-demand laundry and wet and dry cleaning services for all.
Brill Power is a clean-tech platform that develops cutting-edge battery management technology.
Barocal is a Zero-carbon refrigeration.
eleXsys Energy operates as a cleantech energy company.
Renewable energy & infrastructure deal origination platform
Renewable energy & infrastructure deal origination platform
Naked Energy has developed an innovative hybrid solar technology generating combined heat and power.
Rightcharge is the UK’s comparison site for electric car charging
Ripple Energy is to make clean energy ownership affordable and accessible for everyone.
Ripple Energy is to make clean energy ownership affordable and accessible for everyone.
InsurTech, Managing General Agent, Satellite-Data, Parametric Insurance, Climate-Change Risks
eleXsys Energy operates as a cleantech energy company.
Treepoints is a certified social enterprise company.
Airex is a smart ventilation control that builds intelligent air ventilation units using atmospheric sensors and cloud algorithms.
Heimdal is developing profitable direct air carbon capture engineering.
Heimdal is developing profitable direct air carbon capture engineering.
Smarter infrastructure using Industrial Internet of Things and Predictive Analytics
i6 is a provider of a digital fuel management platform to connect stakeholders across all stages of the aircraft refueling process.
Atomic batteries' based on the Molten Salt Reactor - a game changer for ocean transportation
Electric vehicle suitability, infrastructure recommendations, and charge point procurement for businesses of all shapes and sizes.
Xampla creates plant protein material for commercial use.
Aceleron is an innovative UK-based advanced lithium battery developer aiming to accelerate the global shift to cleaner.
A pioneer of 2nd life electric vehicle battery based energy storage systems.
A pioneer of 2nd life electric vehicle battery based energy storage systems.
Modo Energy is an energy asset analysis platform that provides users with data, research and benchmarking tools for energy storage.
Modo Energy is an energy asset analysis platform that provides users with data, research and benchmarking tools for energy storage.
LiNa Energy is commercialising a safe, cobalt and lithium free solid-state sodium battery.
Impact Recycling has developed a breakthrough plastic recycling technology which separates the components of mixed plastic waste.
A pioneer of 2nd life electric vehicle battery based energy storage systems.
Azuri brings affordable solar power to off-grid rural africans.
Cheesecake Energy is developing advanced thermal and compressed air energy systems to store energy.
Perceptual Robotics is creating intelligent automation to make wind turbine and other infrastructure inspection simple and fast
Legacy is a digital fertility clinic for men, founded at Harvard & backed by Y Combinator, FirstMark Capital, Bain Capital and celebrities.
Echion Technologies develops superfast-charging Li-ion batteries
Advanced materials development and manufacture for Li-ion Battery electrodes
Reactive Technologies delivers the world’s most accurate grid measurement tools, making renewable grids possible.
Reactive Technologies delivers the world’s most accurate grid measurement tools, making renewable grids possible.
EcoSync offers an intelligent platform which helps commercial buildings to stop heating empty rooms and reduce energy consumption by 30-50%
Tribosonics is a transformational technology business taking its unique sensing technologies into uncharted and valuable territories.
The Bunch is a bill sharing service handling the set-up and management of utilities payments.
ChangeOver Technologies develops tailored technology that will clean up legacy waste and reduce CO2.
SteamaCo enables utilities to sell energy anywhere on the planet.
Green Energy Options designs and produces in-home energy displays, online energy services, and mobile applications.
3D vision and artificial intelligence applied to subsea robotics servicing offshore wind & oil decommissioning
Cquestr8 is an accelerated weathering company that helps decarbonize cement, lime and steel production and reduce ocean acidification.
InferSens is building breakthrough Tiny ML water sensors enabling real-time and fully comprehensive monitoring of water infrastructures.
Grid Edge offers artificial intelligence, energy optimisation, and building energy management services.
Grid Edge offers artificial intelligence, energy optimisation, and building energy management services.
Green Hydrogen / GH2 Fuels, GH2 Energy and GH2 Systems
Entomics is a biotechnology platform that transforms food waste into sustainable, renewable resources with the use of insects.
Green Hydrogen / GH2 Fuels, GH2 Energy and GH2 Systems
We create stylish home automation, IoT devices that save energy and improve comfort. Globally active through Ovon Home and Ovon Technology.
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