Energy construction companies

4493 UK companies working in the energy sector.

• I Impact Energy Liverpool · Solar PV · 10-49 employees

  Impact Energy specialises in making homes energy-efficient through ECO4 Flex grants, offering services like Air Source Heat Pumps, Solar PV, and insul

• I Impact Flooring Services Ltd Nuneaton · Flooring · 1-9 employees

  Trusted industrial flooring specialists delivering durable, high-performance resin flooring for commercial & industrial sites across the UK. Enquire t

• I Imperial College Developments Ltd London · Property developer

  Imperial College London is a world-leading university for science, technology, engineering, medicine and business (STEMB). Across our London campuses,

• I ImportGenius Derby · Electrical · 10-49 employees

  ImportGenius is the #1 platform for global trade data. Track shipments, find suppliers, monitor competitors, and access insights from 8M+ US businesse

• I Impra Charge Peterborough · EV charging · 1-9 employees

  Experts in EV Charger Installation across the UK. We offer market-leading products, nationwide approved installers, and a streamlined process for peac

• I IMPROVENERGY SOLUTIONS LTD Oldham · Heating & ventilation · 1-9 employees

  Improvenergy Solutions offers free boiler replacement, under floor, room in roof, and external wall insulation grants under the ECO4 scheme. Free ener

• I IMS Heat Pumps Perth · Heating & ventilation · 10-49 employees

  Leading specialists in renewable energy. We offer ground & air source heat pumps, solar panels, battery storage, & more. Established since 1997.

• I In2gr8ted Solutions Preston · Solar PV · 1-9 employees

  Based in Preston, NorthWest England, In2gr8ted Solutions install solar PV and battery storage systems nationwide. They offer a range of quality brands

• I Inbox Thermal Solutions London · Heating & ventilation

  Inbox Thermal Solutions is the exclusive UK partner for HydroTop™ heat pump solutions, offering a unique roof-integrated system for homes where conven

• I Incatuk Ltd Cambridge · Design & build

  INCATUK LIMITED is part of an international group specialising in Turnkey Projects for Agriculture, Rural Development, and the Water Cycle, covering t

• I Indigo Group Penarth · Main contractor

  Indigo Group provides outsourced payroll, CIS compliance, and workforce engagement solutions for multisector businesses, ensuring legal compliance and

• I Industrial Climbers Ltd Newport · Roofing · 1-9 employees

  Industrial Climbers specialise in Rope Access Techniques for Work at Height, Difficult, Limited or Confined Spaces. Offering safe, cost-effective acce

• I Industrial Cooling Equipment Ltd Runcorn · Heating & ventilation · 10-49 employees

  i2Cool is at the forefront of electricity-free cooling technology, offering innovative solutions across various sectors such as architecture, power &

• I Industrial Engineering & Installation Services Ltd Stone · Steel fabrication · 10-49 employees

  Industrial Engineering & Installation Services (IEIS) offer turnkey solutions for fabrication, site and project management across various construction

• I Industrial Services Plumbing And Heating Ltd Cupar · Electrical

  Scotland's leading electrical, fuel and mechanical contractors since 1968. We deliver exceptional work across transport, local authorities, and chemic

• I Industrial Sewn Products Hampshire · Insulation

  Custom-sewn industrial insulation covers for boilers, pumps, valves & more. Prevent heat loss, boost efficiency & protect staff. Nationwide delivery.

• I Industrial Sewn Products Hampshire · Insulation

  Custom-sewn industrial insulation covers for boilers, pumps, valves & more. Prevent heat loss, boost efficiency & protect staff. Nationwide delivery.

• I Inet Integrators Ltd Birmingham · Heating & ventilation · 1-9 employees

  Inet Integrators offers ECO4 grants for home energy upgrades, including boiler replacements, loft insulation, and solar panel installations, to make h

• I Infinis Solar Developments Ltd Northampton · Solar PV

  Independent power producer generating reliable electricity from captured methane and solar, supported by battery storage and power response.

• I Infinite Eco Solutions Ltd Birmingham · Insulation

  Infinite Eco Solutions is committed to making homes greener by helping customers reduce energy expenses through home improvements under ECO4 and GBIS

• I Infinite Energy Kings Hill · Solar PV

  Solar panel, battery and EV charger installation across Kent, Greater London and East Sussex. Free survey, honest forecasts, no on-the-spot quotes.

• I Infinite Heating and Energy Limited Dry Drayton · Heating & ventilation · 1-9 employees

  Heat Pumps, Solar Panels, EV Chargers & Renewable Energy Specialists across Cambridgeshire & Cambourne. 5 Star Rated - Contact Us Today.

• I Infinite Renewable Energy Ltd Lichfield · Solar PV · 1-9 employees

  Infinite Renewable Energy offers tailored renewable energy solutions in the West Midlands for domestic and commercial clients. Go green with our servi

• I Infinity Energy Services Ltd Southampton · Solar PV · 10-49 employees

  Infinity Energy Services supply and install renewable energy solutions to both residential and commercial customers in the south.

• I Infinity Heat Pumps Mansfield · Heating & ventilation · 1-9 employees

  Infinity Heat Pumps provides expert installation of air source heat pumps, offering a comfortable and efficient approach to home heating. They handle

• I Infinity Renewables Crawley · Solar PV · 50-249 employees

  Infinity Renewables is a leading provider of in-house solar and battery installations for UK homes and businesses, offering trusted support from consu

• I Infraconnex Ltd St. Ives · Civil engineering · 1-9 employees

  InfraConnex are a main contractor delivering infrastructure schemes throughout the UK. Specialising in energy infrastructure, including solar and EV c

• I Infrared Energy Chertsey · Heating & ventilation · 1-9 employees

  Smarter heating for modern living. Authorised Partner of Herschel infrared heaters. Market-leading products known for their design, quality, and innov

• I Infrastruct North Ltd Liverpool · Rail infrastructure

  Delivering surveying, engineering and testing services across the UK and beyond, providing accurate, reliable support for your projects.

• I Infrawave Stockton-On-Tees · Utilities

  Infrawave provides comprehensive telecommunications infrastructure solutions, specialising in designing, building, and maintaining advanced networks w

• I INGEENIUM London · Design & build

  Ingeenium Holding is a global engineering and consultancy group offering innovative and sustainable solutions in energy, environmental management, ind

• I Ingeni Solar Walsall · Solar PV · 1-9 employees

  Commercial renewable energy solutions for UK businesses, including solar PV, battery storage, EV charging, project delivery and maintenance.

• I INGENSTAT RENEWABLES LIMITED Swindon · Solar PV

  Ingenstat Renewables specialises in transforming commercial energy consumption through cutting-edge solar and energy storage technology. We focus on d

• I Ingram Installations Stockport · Electrical · 10-49 employees

  Ingram Installations are experts in generators and power systems, providing quality installations and maintenance for standby and other power needs. T

• I Inhus Ltd Leeds · Design & build · 1-9 employees

  INHUS Group specializes in design-build projects, integrating engineering, manufacturing, and construction for a streamlined client experience. They o

• I Initivo Consultancy Limited Watford · Concrete works

  Initivo combines world-leading laboratory testing with expertise in sustainability and a complete understanding of structures. Our multi-disciplinary

• I Inline Access Ltd Grimsby · Scaffolding

  Inline Access Ltd provides a wide range of work at height solutions nationwide. Based out of Sheffield, South Yorkshire we service all major industrie

• I Innercity Scaffolding Ltd Dartford · Scaffolding · 10-49 employees

  Inner City Scaffolding delivers intelligent, bespoke scaffolding and access systems, with safety, innovation, and value at the heart of every project.

• I Innotech Electrical & Renewable Solutions Newton Abbot · Electrical

  Innotech Electrical & Renewable Solutions are experienced, accredited, and professional electricians operating in Torquay and the surrounding areas of

• I Innovate Agri Driffield · Civil engineering · 10-49 employees

  Specialist agricultural and solar civil work contractors based near Driffield, East Yorkshire, covering work across the UK. Over 30 years of experienc

• I Innovative Utilities (UK) Ltd London · Utilities · 10-49 employees

  Innovative Utilities (UK) Limited is a privately owned Utility & Civil Contractor operating throughout the UK, with a strong focus on water and gas in

• I Innovheat Ltd Middlesbrough · Electrical

  Local electricians in Middlesbrough for house rewiring, fuse box replacement, EICR testing and indoor and outdoor lighting. Contact Innovheat for a qu

• I Innovolt Ltd Barnsley · Electrical · 1-9 employees

  Innovolt Limited is your trusted partner for cutting-edge electrical contracting services and sustainable solar panel solutions, prioritizing innovati

• I Inov-8 Electrical Services Ltd Tamworth · Electrical

  INOV8 Electrical Services Ltd is a UK-based electrical engineering professional company offering domestic and commercial services. Established in 2024

• I Inseco Ltd Blackburn · Insulation · 1-9 employees

  Specialising in energy-efficient improvements through government-funded schemes and ECO grants, Inseco Ltd installs insulation, heating, solar PV, and

• I Insight Energy Renewables Ltd Ipswich · Solar PV · 10-49 employees

  Insight Energy is your trusted partner in sustainable energy solutions. We specialise in the supply and expert installation of innovative Solar PV, El

• I Insolation Solar Ltd Dudley · Solar PV · 1-9 employees

  Specialist installers of solar panels for homes & businesses. Solar panels will save you money and improve your carbon footprint.

• I Inspect & Test Services Dungannon · Electrical · 1-9 employees

  Electrical inspection and testing services in Northern Ireland. Independent, reliable, quality electrical inspection, testing and certification for bu

• I Inspire Electrics Ltd Glasgow · Electrical · 1-9 employees

  Inspire Electrics offers trusted electrical services in Glasgow and across Scotland, with experienced electricians for domestic, commercial, and renew

• I Inspire Green Ltd Cardiff · Solar PV

  Cardiff-based MCS-certified installer of commercial solar PV, EV charging, battery storage & LED lighting across Wales & the South West. Free site sur