4513 UK companies working in the energy sector.
Delivering large-scale commercial, residential and renewable projects, our established, family-run business is now one of the premier electrical contr
DBS Maintenance Ltd are leading UK petrol forecourt repair and maintenance specialists, offering nationwide construction, branding, repairs, and maint
DC Energy offers professional solar panel & battery installation in Plymouth, providing sustainable energy solutions to reduce costs and enhance effic
DC Green delivers lease-based rooftop solar for landlords across CEE-zero CapEx, fast deployment, as-consumed tenant tariffs, indexed roof income. Ope
Quality solar panels, battery storage & EV charging for Norfolk homes. MCS certified installers offering honest advice and custom designs.
dCarbonX develops offshore underground energy storage assets for the UK and Ireland, focusing on natural gas and hydrogen storage and carbon sequestra
Reliable Heating & Boiler company in Fife and surrounding areas. DDJ Heating And Renewables offers boiler installation, servicing, solar PV, and heat
De Romein Nearshore specialises in nearshore civil engineering installations, particularly for subsea cable sectors for Marine Electricity Interconnec
Dean Moor Solar Farm is a proposed 150MW solar farm in Cumbria, a joint venture between Firma Energy Ltd and ib vogt UK Ltd. It will power over 50,000
Experienced electrical contractors in South Wales providing domestic, commercial, and maintenance services. Specialising in solar PV and EV charging s
Specialists in solar, EV chargers, and heat pumps. Trusted renewable energy installers helping UK homes and businesses go green. Get a fixed quote tod
Dee Tech Services Limited has over 25 years of experience in engineering, operating from Hawarden, North Wales, and supporting sites nationwide and ov
A world-leading ocean services provider, accelerating sustainable use of ocean resources. DeepOcean offers full lifecycle services across renewables,
Delta 'T' (Trace Heating) Limited is a specialist electric trace heating engineering company, designing and installing systems worldwide since 1978. T
Solar Panel & Battery Storage Glasgow. Power Your Home With Free Solar Energy, Even When It's Cloudy! Fully Installed Systems From Only £4,995.
Delta Fabs, Port of Tyne and Port of Blyth based fabrication for vessel mobilisation/demobilisation, renewables, vessel grillage and offshore heavy fa
Expert HV design, construction and maintenance across the UK. Safe, compliant electrical infrastructure from substations to testing and commissioning.
Delta Jointing Services Limited specialises in utility and infrastructure projects, focusing on LV/HV cable systems, 11kV connections, and substation
Delta Power Electrical Services offers expert electrical solutions, including solar PV and battery storage, for residential and commercial clients. Co
Delta T Eco Heating: Heat pump and renewable energy specialists in Oxfordshire and Buckinghamshire. Expert design, installation, and maintenance for h
Deltawatt Ltd are trusted electrical and renewable energy specialists covering Kent and South East London. From rewires to solar panels, get a free qu
DENTON are a national Office Design & Fit Out company based in London & Manchester, passionate about working the world's leading brands.
MCS & NAPIT certified solar, battery and EV charger installation across Milton Keynes. Fixed-price quotes after a real roof survey, not a phone estima
Expert heat pump and air con installers in Derbyshire. MCS Certified & Heat Geek Approved. Offering bespoke Heat Pump, Boiler, and Air Conditioning In
Derbyshire Solar Ltd specializes in solar panel and battery installation, helping homes embrace renewable energy for lower energy bills and a sustaina
World-leading specialists in drilling derricks, masts, substructures, and rig equipment. API inspections, fabrication, and refurbishment services for
Derril Water Solar Park is the UK's largest community-owned solar farm, a 42 MWp project near Pyworthy, Devon.
Derwent View Scaffolding Ltd offers expert scaffolding services across the UK, focusing on safety and efficiency for commercial, industrial, and domes
MCS-certified team covering Bournemouth, Poole & Dorset. Solar, battery storage & EV chargers, free survey.
Desi Scaffolding Energy Ltd is a UK contractor providing scaffolding, insulation, roofing, heating, and electrical solutions for residential and comme
Design Electrical NI is an authorised installer for the Workplace Charging Scheme (WCS). We help our customers apply for EV grants for installing elec
Leading technical experts in Renewable Energy, passionate about providing Renewable Solutions to replace fossil fuel boilers. Offering MCS Umbrella se
Detronium designs and delivers advanced fire and gas detection solutions for industrial environments where accuracy, reliability, and early response a
Development Bank of Wales provides flexible business finance for companies based in Wales, offering loans and equity from £1,000 up to £10 million.
Full design, consultation, installation & certification of renewable heating & power, including Air Source Heat Pumps, Solar PV and EV Charge Points.
Devon Solar provides expert solar PV and battery storage solutions for homes, businesses, and farms across Devon, Cornwall, and Somerset. Offering tai
DFB Energy offers innovative solutions in solar and wind power production, network establishment, and energy efficiency optimization. They also provid
DG Project Solutions specialises in electrical contracting, offering domestic, commercial, industrial, and renewable energy services. They focus on re
DGUS Group provides contract services to build, maintain, and repair UK and Ireland's power, telecoms, gas, rail, and water infrastructure. They also
DHMS Civils is an independent civil engineering company based in North Yorkshire, offering engineering and groundworks services nationwide.
Diamond Aerials & Satellites Ltd is a well-established aerial and satellite installation company founded in 2007. They offer a wide range of services
Diamond Property Maintenance NI offers property maintenance in Belfast & NI. 30+ years experience, £10M insured, 5.0 Google rated. Services include cl
DIBAN LTD offers complete turnkey solutions for the Telecoms, Highways, Gas, Water and EV Charging sectors, operating across the UK from multiple stra
Dida Construction Ltd is a leading construction company in London, specializing in design and build processes for a wide range of residential and comm
DiFuria Group Limited is a specialist contracting and recycling company offering plant hire, crushing and screening, waste handling, rail engineering,
Dimension Green Energy provides mechanical & electrical services, with expertise in conventional and renewable technologies. They are a Daikin and Mit
Fully accredited electricians providing high-quality electrical work, solar PV, battery storage, and EV charging, delivered professionally, safely, an
Affordable Solar PV systems from as little as £6,295 with clear pricing, no hidden extras! Simple Solar, Done Right.
Direct Electrical & Renewables provides solar PV, battery storage, and EV charging solutions for homes and businesses across the UK. They offer practi
Direct Fencing & Solar are specialists in solar farm installation and commercial fencing, supporting renewable energy projects with expert workmanship
Planyard connects cost estimating, budgets and committed costs in one live system, and handles your CIS and VAT calculations automatically.