101 Best Renewable Energy Companies and Startups in the UK

4 years ago

This article showcases some of the most popular players operating in the Renewable Energy space. Our analysts selected these companies because they excel in one of the following categories:

  • Innovation
    • Innovative ideas
    • Innovative route to market
    • Innovative product
  • Growth
    • Exceptional growth
    • Exceptional growth strategy
  • Market Position
    • Market domination
    • Market leader
    • Strong market competitor

Data sourced from Crunchbase and SEMRush.

This list may include both state and private ventures providing the most value within the Renewable Energy industry.

Top Renewable Energy Companies


British Gas

British Gas is an energy and home services provider of electricity and gas in the U.K.

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IFL Science

IFLScience aims to promote everything that’s cool about science with energy, passion and an irreverent point-of-view that aims to entertain.

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Eon UK PLC

Eon UK PLC is a utility service provider that supplies energy in the UK.

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EDF Energy

EDF Energy is a producer of low-carbon electricity that has 35 wind farms – including two off-shore.

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Bulb

Bulb provides affordable renewable energy for homes and businesses.

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OVO Energy

OVO Energy is an independent energy technology company and supplier.

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Octopus Energy

Technology to drive renewable energy revolution globally, faster and cheaper.

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Tonik Energy

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

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Ecotricity

Ecotricity operates as a green electricity company.

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Ombudsman Services

Ombudsman for energy, telecoms and a number of other sectors

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Green Star Energy

Green Star Energy supplies electricity, gas and renewable energy at competitive prices.

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Bodycote

Bodycote is an engineering company that specializes in thermal processing services with 180 locations in 23 countries.

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Centrica

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

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Pure Planet

Pure Planet is a app-based renewable energy supplier.

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Good Energy

Good Energy is a British renewable electricity company with a difference.

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Carbon Footprint

CF Ltd is first choice for our clients, from Blue chip and mid market companies through to SMEs and public sector organizations.

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Centre for Sustainable Energy

CSE is an independent national charity that shares knowledge and experience to help people change the way they think and act on energy.

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Opus Energy

Opus Energy is a leading independent supplier of gas and electricity to businesses all across the UK.

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Viridor Waste Management Limited

Viridor Waste Management Limited offers recycling, renewable energy, and waste management services.

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Aggreko

Aggreko provides power generation and temperature control solutions to customers.

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Green Energy Options

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

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Elmhurst Energy

Elmhurst Energy is a Renewables & Environment Company offering Energy Assessor Certification, Energy Assessment Program & ESOS Audits.

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Dialog Semiconductor

Dialog Semiconductor makes energy-efficient, highly-integrated, and mixed signal ICs for mobile, IoT, and solid state lighting applications.

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Azuri Technologies

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

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Zero Waste Scotland

Zero Waste Scotland create a more circular economy and help Scotland realise the economic, environmental and social benefits.

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Electropaedia

Electropaedia is a website that provides a comprehensive knowledge base about energy supply and battery technologies.

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Navitron

Navitron is an one of the UK’s leaders in renewable technology & they have over ten years experience in the solar sector.

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First Home Improvements

First Home Improvements provides unrivaled energy-saving products within its industry sector, by many others.

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Eco Hosting

Eco Hosting is providing carbon neutral web hosting based entirely in the UK, powered by renewable energy.

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Powervault

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

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Energy Light Bulbs Ltd

Energy Saving Light Bulbs: Buy energy saving bulbs, low energy candle bulbs and efficient light bulbs has never been easier.

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GM8 Group

GM8 Group is providing energy conservation consultancy services.

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Freepricecompare.com

UK’s #1 Price Comparison Website. 100% Free, Independent and Impartial

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Dana Petroleum plc

Dana Petroleum operates as an oil and gas exploration and production company.

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Gazprom Energy

Gazprom Energy provides managed meter reading services.

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ExpertSure

Get expert information to help you navigate confusing industries.

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SolarTherm UK

Solartherm UK is a solar energy company that approved installer of a number of renewable products.

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Energy Development Co-operative

The EDC was founded to provide meaningful employment and increase awarenes, education and the availability of solar and wind technologies.

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Herschel Infrared

Herschel Infrared is a renewables energy and environment consulting company located in Bristol.

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Rayotec

Rayotec Limited is a manufacturer of heat pumps, solar thermal, electric radiators.

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OVO Group

OVO is a leading energy technology company determined to create a world with clean, affordable energy for everyone.

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Marlec Engineering

Marlec Engineering is a manufacturer of the renowned Rutland Windcharger range of micro wind turbines.

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VivoPower

VivoPower provides renewable energy to customers from solar power assets that it builds, finances and operates.

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Lightsource Renewable Energy

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

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Alpha Innovation

Alpha Innovation provides heating solutions to the UK, including energy saving boilers and commercial boilers.

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Oxford Institute for Energy Studies

The Oxford Institute for Energy Studies specialises in advanced research into the economics and politics of international energy.

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World Energy Council

World Energy Council is a UN-accredited global energy body dedicated to delivering a sustainable energy system worldwide.

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Lumo App

Lumo is more than a price comparison site – combining expert knowledge with actual usage to find the right energy plan for you.

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SSE Telecoms

It’s easy to see why our network is leading the way

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Tokamak Energy

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

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Intelligent Energy

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

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Trayport

Trayport is a provider of energy trading solutions to traders, brokers and exchanges worldwide.

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John Wood Group

John Wood Group comprises three businesses: Wood Group PSN, Wood Group Kenny and Wood Group Mustang.

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Pavegen

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

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Contract Natural Gas

CNG Ltd are proud to be the business gas supplier of choice – the real alternative and the right choice for commercial natural gas.

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Sunamp

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

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Carbon Trust

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

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Active Energy Group Plc

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

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BMT Group

BMT Group Ltd is an international design, engineering, science, and risk management consultancy firm.

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WRAP

WRAP’s vision is a world in which resources are used sustainably.

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Clarke Energy

An award-winning multi-national specialist in the engineering, installation and maintenance of engine-based power plants.

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Aminex plc

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

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Leading Edge Turbines

Leading Edge Turbines is a world-class designer and manufacturer of small wind turbines for bespoke off-grid power systems.

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WFS Wireless For Subsea

WFS delivers underwater wireless instrumentation and control solutions to the offshore oil and gas and renewables industries.

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EcoEnerg renewable

EcoEnerg renewable is a renewable energy consultancy.

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isoenergy

isoenergy is designing, supplying and installing ground source heat pumps and other renewable energy systems.

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Switch My Business

Switch My Business is an energy price comparison and brokerage service aimed primarily at Small and Medium Businesses in the UK.

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Andritz Hydro Hammerfest

Andritz Hydro Hammerfest develops and supplies turn-key tidal power arrays to the global energy market.

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quietrevolution

Quietrevolution develops renewable energy and wind turbine solutions.

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Push Energy

Push Energy is a developer of large scale ground mounted solar farms in the UK.

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Powerstar

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

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Regen S W

Regen is a not-for-profit center of energy expertise that offers independent expert advice and market insight.

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Green Lighting Co

For over a decade Green Lighting have designed and manufactured low energy lighting to exceed the requirements of building regulations.

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Berkeley Energia

Berkeley Energia is a high impact, clean energy company focused on bringing its wholly owned Salamanca project into production.

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Quinbrook Infrastructure Partners

Quinbrook Infrastructure Partners (‘Quinbrook’) is a specialist ‘value-add’ investor and asset manager.

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Power Control

Power Control is a renowned and highly influential emergency power specialist.

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Connected Energy

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

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Gravitricity

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

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Unitrove

Unitrove has incredible power that involves in cleaner, greener and cheaper energy for a sustainable future.

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BBOXX

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

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S A S Energy

SAS Energy is a highly trusted, highly professional and one of the most forward-thinking renewable energy companies in the UK.

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S R E

S R E is a committed to the development of a sustainable built environment.

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Muirhall Energy

Muirhall Energy is a independent developer of renewable energy projects.

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Alumasc Group plc

Alumasc Group plc is a supplier of premium building products, systems and solutions.

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Antaco

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

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EvoEnergy

EvoEnergy provides renewable energy solutions and services.

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Rainharvesting Systems

Rainharvesting Systems is a supplier of very fine quality rainwater harvesting equipment including the UNIQUE Wisy vortex filters.

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Eco

Eco is an independent consultancy that specialises in project formulation & programme design for the sustainable energy and climate change.

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Merlin Diese

Merlin Diesel has been at the forefront of aftermarket diesel fuel injection for over 70 years.

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SIMEC

SIMEC Group is a multi-faceted commodity business spanning five continents, with extensive operations.

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Infield Systems

Infield Systems is a consulting and advisory company for the offshore oil, gas, marine and renewable energy industries.

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CarbonCulture

CarbonCulture helps people save energy

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Jointing Technologies

The UK’s leading specialist power cable accessories distributor, operating in the electricity sector at voltages up to & including132kV.

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LC Energy

LC Energy is supplying energy conservation consultancy services.

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Nuclear Institute

Nuclear Institute is the professional membership body and learned society for the nuclear industry.

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Investor Square – Property and Solar Investments

Investor Square – Property and Solar Investments is a blog publishing news and reviews on investment property and green energy investments.

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ACE Winches

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

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Inenco

Inenco is a market leader in strategic energy management, helping large corporates and SMEs to manage their energy spend.

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Locogen

Locogen is an award-winning pioneer in the renewable energy sector located in Edinburgh.

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Celtic Renewables

Celtic Renewables is a biotech startup formed to commercialize a process for producing a superior next generation biofuel.

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RiverRidge Rethinking Resources

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

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Solarcentury

Solarcentury develops, constructs, owns and operates utility-scale solar and smart technology across Europe, Latin America and Africa.

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