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101 Most Innovative United Kingdom Based Renewable Energy Companies & Startups

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This article showcases our top picks for the best United Kingdom based Renewable Energy companies. These startups and companies are taking a variety of approaches to innovating the Renewable Energy industry, but are all exceptional companies well worth a follow.

We tried to pick companies across the size spectrum from cutting edge startups to established brands.

We selected these startups and companies for exceptional performance in one of these categories:

  • Innovation
    • Innovative ideas
    • Innovative route to market
    • Innovative product
  • Growth
    • Exceptional growth
    • Exceptional growth strategy
  • Management
  • Societal impact

Top United Kingdom Renewable Energy Startups

Data sourced from Crunchbase and SemRush.

Bulb

Bulb

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Bulb provides affordable renewable energy for homes and businesses.

Centrica

Centrica

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Centrica is a multinational energy and services company developing innovative solutions, offers, and products.

Centrica

Octopus Energy

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Octopus Energy builds technology that reduces the cost of energy to improve customer experience.

Centrica

BBOXX

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BBOXX designs, manufactures, and distributes plug and play solar systems.

Centrica

OVO Energy

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OVO Energy is an independent energy technology company and supplier.

Centrica

Storm4

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Storm4 is a specialist GreenTech recruitment marketplace, connecting organizations with the senior talent to drive their mission.

Centrica

Orbital Marine Power

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Scotrenewables Tidal Power is a renewable energy research and development company focused on tidal power.

Centrica

Tokamak Energy

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Tokamak Energy is a private company developing and accelerating the development of fusion power.

Centrica

Grid Edge

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The way we use energy is changing

Centrica

Zenobe Energy

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Zenobe Energy is the largest independent owner and operator of battery storage in the UK.

Centrica

Carbon Trust

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Carbon Trust is to accelerate the move to a low carbon economy, by working with organisations to reduce carbon emissions now and develop.

Centrica

Lightsource Renewable Energy

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Lightsource is a provider of ground and rooftop solar installations in the UK.

Centrica

Azuri Technologies

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Azuri brings affordable solar power to off-grid rural africans.

Centrica

First Light Fusion

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First Light Fusion is an energy company that focuses on researching energy generation by inertial confinement fusion.

Centrica

Sunamp

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Sunamp is a company that provides industrial and residential heat battery storage systems.

Centrica

Nyobolt

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Nyobolt is a developer of high-power battery technology used to serve automotive applications.

Centrica

Aceleron

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Aceleron is an innovative UK-based advanced lithium battery developer aiming to accelerate the global shift to cleaner.

Centrica

Zeigo

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Zeigo is a climate-tech platform that connects supply and demand of renewable energy across the world

Centrica

Pavegen

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Pavegen is the global leader in harvesting energy and data from footfall.

Centrica

Arcola Energy

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Arcola Energy is a leader in hydrogen and fuel cell integration, specializing in zero-emission solutions for heavy-duty vehicles.

Centrica

Rovco

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Rovco provides an autonomous underwater vehicle and remotely operated underwater vehicle technologies and support services.

Centrica

Intelligent Energy

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Intelligent Energy is a clean power systems company offering fuel cell and hydrogen generation technologies.

Centrica

Setcoin Group

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Setcoin Group is a private equity company makes ESG investments in commercial real estate, green buildings, renewable energy, infrastructure

Centrica

Reactive Technologies

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Reactive Technologies develops new technologies that assists the energy industry to deliver cleaner, greener, and more affordable energy.

Centrica

Globeleq

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Globeleq Generation Limited develops, builds, and operates renewable power projects in Africa and the Americas.

Centrica

Connected Energy

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A pioneer of 2nd life electric vehicle battery based energy storage systems.

Centrica

bio-bean

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bio-bean is a U.K.-based green company that offers its users with processes of recycling and waste management solutions.

Centrica

Echion Technologies

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Echion Technologies develops superfast-charging Li-ion batteries

Centrica

Bramble Energy

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Bramble Energy is an innovator energy technology company that designs and manufactures high-performance, low-cost, and fuel cell stack

Centrica

ARC Marine

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ARC Marine is a sustainable fishing company that rehabilitates damaged marine habitats to create new reef structures.

Centrica

Project Etopia

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Project Etopia is a creating more economical and environmental developments through technological advancements.

Centrica

Celtic Renewables

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Celtic Renewables is a biofuel startup focused on the renewable energy and whisky sector.

Centrica

Oxis Energy

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OXIS Energy is developing the next generation Lithium Sulfur battery chemistry that will revolutionize the rechargeable battery market.

Centrica

Amarenco

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Amarenco is a fast growing, independent Solar PV investment company with a founding executive team that has wide and deep experience in

Centrica

Mytrah Energy

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Mytrah Energy (India) Limited (MEIL), a wholly owned subsidiary of Guernsey based and AIM/LSE listed MEL in India,

Centrica

Lekela Power

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Lekela Power (Lekela) is a pan-African renewable energy generation platform

Centrica

Gravitricity

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Gravitricity develops a novel storage technology which offers some of the best characteristics of lithium batteries and pumped storage.

Centrica

Perceptual Robotics

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Perceptual Robotics is creating intelligent automation to make wind turbine and other infrastructure inspection simple and fast

Centrica

Open Energi

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Open Energi enables public and private sector to commercialize their energy loads, improve their energy management and support their goals.

Centrica

ContourGlobal

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ContourGlobal develops, acquires, operates, and manages wholesale electric power generation businesses.

Centrica

BuffaloGrid

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BuffaloGrid is removing barriers for internet adoption and connecting the next billion.

Centrica

Moltex Energy

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Moltex Energy is developing a next generation nuclear reactor that can produce clean electricity

Centrica

SEaB Energy

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SEaB Energy has patented a micro anaerobic digestion system for onsite and in-building conversion of organics to energy, water, & fertiliser

Centrica

Nova Pangaea Technologies (NPT)

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Nova Pangaea Technologies is a cleantech company that has developed a sustainable technology called REFNOVA

Centrica

Kite Power Systems

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Kite Power Solutions is a business developing a disruptive technology to produce renewable energy from the wind.

Centrica

Tonik Energy

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Tonik is a renewable energy company that puts people in control of their energy generation, storage, and consumption.

Centrica

4energy

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4energy produces cooling solutions and enterprise software platforms for connecting equipment, infrastructure and energy.

Centrica

Hyperdrive Innovation

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Hyperdrive Innovation develops innovative technologies to power electric vehicles, homes and businesses.

Centrica

Nova Innovation

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Nova Innovation is an energy company that designs, builds, operates tidal energy devices, and develops sites for arrays of tidal turbines.

Centrica

Green Energy Options

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Green Energy Options designs and produces in-home energy displays, online energy services, and mobile applications.

Centrica

Powervault

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Powervault aims to disrupt the energy storage market by supplying the first plug and play energy storage device

Centrica

Terrabotics

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An Earth Observation & Remote Sensing Data Analytics company for more sustainable production and supply of natural resources.

Centrica

Hydro Wind Energy

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Game changing innovations to transform the 21st century and beyond

Centrica

Marine Power Systems

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Marine Power Systems Ltd (MPS) develops wave power technology.

Centrica

Mixergy Ltd.

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Mixergy Ltd. offer a cost-effective solution to save energy and facilitate more renewable power generation.

Centrica

Delonex Energy

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Delonex Energy is building a material portfolio of discovered and prospective resources in East and Central Africa – a region of

Centrica

Hab Housing

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Hab Housing is a sustainable housing developer company with a strong focus on the custom build market.

Centrica

Mocean Energy

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Mocean Energy develops new technologies which can harness the power of waves – and accelerate the transition to a zero-carbon world.

Centrica

Ripple Energy

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Ripple Energy is to make clean energy ownership affordable and accessible for everyone.

Centrica

Naked Energy

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Naked Energy has developed an innovative hybrid solar technology generating combined heat and power.

Centrica

LAT Water

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LAT Water is a developer of sustainable wastewater treatment solutions.

Centrica

Caldera

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Caldera develops “Warmstone Heat Battery,” a heat storage to lower carbon usage.

Centrica

Tepeo

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Tepeo is a British clean technology company that has developed a low-cost, easy-to-install low carbon boiler.

Centrica

eleXsys Energy

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eleXsys Energy operates as a cleantech energy company.

Centrica

Enian

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Project management software for renewable energy professionals.

Centrica

OXTO Energy

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OXTO Energy Pioneering flywheel energy storage technology with ambitions to transform the energy landscape.

Centrica

Bodle Technologies

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Developing SRD® technology for a low-power display of vivid colours that doesn’t look washed out in bright conditions

Centrica

Belltown Power

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Belltown Power is an international renewable energy company that develops and operates wind, solar, and hydro projects.

Centrica

Papertrail.io

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Inspection Management for the 21st Century

Centrica

Antaco

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Antaco’s mission is to accelerate the world’s transition to a circular economy.

Centrica

Renovagen

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Renovagen has developed a patented portable solar power system called “RAPID ROLL”, a complete “micro-grid in a box” solution.

Centrica

ACE Winches

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A global leader in the design, manufacture and hire of winches.

Centrica

Cella Energy

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Cella Energy is an advanced materials and technologies company with first-mover advantage in hydrogen storage technology.

Centrica

Inhabit

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Inhabit is a web platform helping businesses achieve net zero.

Centrica

E24

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E24 provides fully integrated end-to-end, modular and inter-connectable renewable energy solutions.

Centrica

Orthios Group

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Orthios Group is a provider of Renewable energy, food production, climate action and job security.

Centrica

Electron

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Electron is accelerating the energy industry’s transition to Net Zero by making granular, market-based interactions possible.

Centrica

UrbanChain

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Blockchain, AI, Renewables, Distributed Energy Management System, Peer-to-Peer Exchange System, Local Energy Market, Virtual Power Plants

Centrica

MapStand

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MapStand web-mapping platform provides oil and gas company asset summaries, upstream datasets, news and activities.

Centrica

SAVORTEX

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SAVORTEX is set apart within the marketplace uitising our pioneering and patented techniques

Centrica

EPI Group

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The EPI Group is a leading independent geoscience and geophysical consultancy to the energy industry

Centrica

Ventive

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Ventive creates healthy internal environments. Pioneers of Passive Ventilation with Heat Recovery

Centrica

Greener

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Greener is a B2B sustainability matchmaking platform for food and drink SMEs.

Centrica

Air Control Entech

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Robotic Inspection technology business specialising in UAVs, ROVs and crawlers

Centrica

Storelectric

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Storelectric is a developer of projects using two highly efficient forms of Compressed Air Energy Storage

Centrica

Active Energy Group Plc

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Active Energy Group Plc is a supplier of industrial wood chip for Medium-Density Fiberboard (MDF) manufacturing and Biomass.

Centrica

Powerstar

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Powerstar is an engineering market leader renowned for the innovative design of their range of energy saving solutions.

Centrica

Green Hedge

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Green Hedge is a leading developer and operator of low carbon electricity generation and storage projects.

Centrica

Amber Energy

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AMBER is a for profit cooperative with the goal of growing community based green energy generation in Ontario by engaging residents.

Centrica

Firglas

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Firglas provides commercial-scale algae cultivation for food grade products.

Centrica

Iduna

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Iduna is an innovative car charging scheme.

Centrica

Witt Energy

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Witt Limited has developed a technology called the WITT which converts motional energy into electricity Motional energy

Centrica

Zhyphen

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Zhyphen is to supply integrated modular energy systems that generate off grid renewable energy that is sustainable, affordable.

Centrica

EDS HV Group

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EDS HV Group engages in the design and installation of wind farm construction projects.

Centrica

QED Naval

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QED Naval is a naval architecture consultancy that is focused on the development of the marine renewable energy industry.

Centrica

Prolectric Services

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Prolectric Services is a supplier of off-grid renewable energy solutions.

Centrica

Aminex plc

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Aminex plc is an Africa-focused oil and gas company with near term production, development and high impact exploration.

Centrica

Reclyc8

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Reclyc8 is a environmental technology firm.

Centrica

Solar for Schools

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Digital platform to enable schools to go solar and students to fight climate change. SaaS project development, management & CO2 education.

Centrica

RiverRidge Rethinking Resources

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RiverRidge is regarded as Northern Ireland’s largest independent waste management company.

Written by Mark Smith

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