46+ Best UK Energy Efficiency Startups & Companies | Best Energy Efficiency Companies Award 2021

Energy Efficiency is big business in the UK. We have selected the top 46 Energy Efficiency companies across the size spectrum to showcase. These startups and companies are all taking different approaches to innovating the Energy Efficiency industry, that diversity of innovation is what makes the UK so great. 

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

Innovation

Growth

Management

Societal impact

The best Energy Efficiency startups and firms in the UK

We have profiled the top 46 Energy Efficiency startups, companies and firms in the UK. This list is in no particular order, all of the companies showcased here are exceptional companies, well worth following. 

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Octopus Energy

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

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Addionics

Addionics is creating next-generation batteries through intelligent 3D battery architecture and engineering.

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Hometree

Hometree exists to make home ownership simple & sustainable

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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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Lightsource Renewable Energy

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

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Limejump

Limejump is a Technology-Driven Utility: harnessing the power of big data to positively disrupt and transform today’s energy market.

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Mytrah Energy

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

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Arloid Automation

Arloid is an AI solution that learns to automatically adjust HVAC settings based on changing environmental conditions.

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Switchee

Data analytics and IoT business serving large social landlords

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Moltex Energy

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

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Advizzo

We combine methods from behavioural and data science to deliver a customer engagement software for all utilities.

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Metis Labs

Intelligent software, improving the performance of manufacturing processes.

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Airex

Airex is a smart ventilation control that builds intelligent air ventilation units using atmospheric sensors and cloud algorithms.

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Quimera Energy Efficiency

Energy Efficiency, ESCO, Energy Saving, Energy Service

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GridDuck

GridDuck is a cloud-based hardware, dashboard & API enabling control of your clients' energy

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Demand Logic

Demand Logic is an online energy efficiency system that analyzes data from building management systems.

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RheEnergise

RheEnergise is an energy company that transforms pumped hydro technology and boosts its capacity with High-Density Hydro (HDH) technology.

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40South Energy

40South Energy we have the expertise to turn ocean wave energy into useful work.

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Energy 4 Impact

A non-profit organisation working with local businesses to extend access to energy in Africa.

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Geothermal Engineering

Geothermal Engineering is engaged in the development of deep geothermal heat and power projects.

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Inspirit Energy Holdings

Inspirit Energy Holdings designed to operate as a single, standalone appliance for a building's energy needs.

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hiber

Home energy product installation startup

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The Crowd

The Crowd is a platform for the business community to share ideas and innovations.

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Kiwi Power

Kiwi Power is a leading global energy technology company that is simplifying distributed energy.

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Signol

Signol develops software which focuses on fuel efficiency by analysing operational data.

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Recyclan

Tech Enabled Plastic Recycling Company

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Earth Capital

EC is a global private equity investment manager totally focused on Sustainable Development within the climate change nexus.

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Trident Energy

Trident Energy is an independent developer of enabling technology for the offshore renewables industry.

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Elgin Energy

Elgin Energy is an international and independent solar development platform.

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EnergyWiser

Their customers save £324/yr on their energy bills

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nCubeHome

nCube is a Smart Home hub and app that integrates many smart devices together into one unified experience.

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DAJIE Ltd

Distributed Autonomous Joint Internet and Energy

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Vestemi

Vestemi is a new technology product company with a social purpose.

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Smart GreenTech Solutions

We are a well-established independent and multi award winning London based energy efficiency and sustainability consultancy.

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Power Drive Efficiency

Power Drive Efficiency develops energy efficient equipment.

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E-Gistics

E-Gistics is an international logistics firm with a specialty focusing in the online retail sector.

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Better Home Cover

The Emergency Home Repair Solution

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OakTree Power

An energy sector "Aggregator", using demand-side reduction to deliver financial and carbon savings to medium and large organisations

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SulNOx Group

SulNOx Group provides fuel conditioning process and product that increase fuel efficiencies and thus reduce emission.

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Digital Infra Partners

Digital Infra Partners offers a series of summits that focus on building and operating a network, energy, and digital Infrastructures.

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Ecofin Us Renewables Infrastructure Trust

Ecofin invest in essential assets and services that contributes to sustainable human ecosystems and communities.

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Bill Switchers

Switch Your Energy Deals & Save Upto 40% Compare Your Current Deal & Get Guaranteed Savings We have more than 350 energy deals in your area.

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Starsight

Starsight provides captive power and energy efficiency solutions to commercial, multi-site clients in Nigeria through long-term contracts.

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Nuclear Industry Association

Nuclear Industry Association (NIA) is the trade association for the civil nuclear industry in the UK.

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Triple Point Energy Efficiency Infrastructure Company

Triple Point Energy Efficiency Infrastructure Company engages in investing in energy efficiency projects.

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CS2

CS2 provides construction consultation, building surveying, dilapidations, cost consultancy, energy and sustainability services.

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We want to help you grow your

Energy Efficiency

company. SEO made simple with.

No upfront fees and rolling 1 month contracts. ROI driven SEO.

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