Renewable Energy Companies Using WordPress in the UK: 2,029 Active Firms (2026)
Renewable energy companies running a public CMS use web publishing infrastructure to explain generation, supply or project activity in the UK.
For renewable-energy operators, a CMS deployment usually sits with communications, marketing, policy and operations rather than product engineering. The site has to carry project pages, grid-connection updates, planning material, recruitment content, investor information and customer education, often for a mixed audience of landowners, households, local authorities, offtakers and regulators. Choosing an off-the-shelf publishing stack tends to signal a business with enough internal process to keep public content current, but not necessarily a large digital team. The buying centre is typically pragmatic: low-friction editing, agency support, search visibility, forms and governance matter more than bespoke application development.
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2,029 UK renewable-energy businesses run the CMS profiled here, making it the most common detected publishing system in this sector with 71.8% of a 2,825-company CMS-detected base. Adoption is not just a London pattern: registered addresses are split across London and the South West at 13.1% each, followed by the South East at 12.6%, the East of England at 10.0% and the North West at 9.9%. Among firms reporting employment, headcount totals 3,221, pointing to a cohort containing many owner-managed operators and services businesses alongside generators, suppliers and asset managers with wider operating footprints.
Generators, suppliers and asset managers in this cohort sit close to Ofgem’s licensing perimeter when they generate, move or supply energy in Great Britain. Once licensed, standard and any special licence conditions shape public-facing processes, from customer information to market communications. Accredited renewable stations also remain within Renewables Obligation audit and compliance activity, including generation submissions for certificates, even though the scheme is closed to new generating capacity. For companies running a public CMS, procurement is therefore less about publishing alone and more about controlled ownership of web content, forms, analytics tags, privacy notices and GDPR-aware handling of enquiries.
Adoption appears likely to persist where renewable-energy firms need direct publishing without building a bespoke web team. The pattern tends to favour agency-supported sites, editable project libraries and modular plug-ins for forms, search and stakeholder updates. Pressure may come from security governance, accessibility expectations and privacy controls, especially where sites collect landowner, customer or investor enquiries. Some firms will move towards more managed publishing environments as procurement teams tighten oversight, while others will stay with familiar CMS stacks because the surrounding labour market of agencies and freelance developers keeps switching costs visible.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
Adoption by company size
Adoption of WordPress rises with company size across the trading UK Renewable energy companies in this cohort. 54.6% of the 2,672 companies with under 10 employees run WordPress (1,459 detected). 60.2% of the 824 companies with 10–50 employees run WordPress (496 detected). 64.9% of the 74 companies with over 50 employees run WordPress (48 detected). That is a 10.3% gap between the over 50 employees and under 10 employees bands.
2,029
Active firms
2026
71.8%
Of detected CMS share
UK Renewable energy
5
Median headcount
Filed accounts
4,675
Verified directors
Across this cohort
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Key facts
About 7% of the trading cohort reports turnover above £5M (151 of 2,029 firms) — the rest sits below that revenue band.
11% of the cohort was incorporated since 2022 (240 firms), so a sizeable share is in its first few filing cycles.
This CMS accounts for 71.8% (2,029) of detectable CMS use among renewable-energy firms, versus 10.4% (293) for the next system.
London accounts for 13.1% (266) of the cohort, closely followed by the South West at 13.1% (265) and the South East at 12.6% (256).
SEO tooling is also detected on 50.9% (1,032) of sites in the cohort, while analytics tags appear on 49.1% (997).
Ofgem licensing applies where renewable-energy businesses generate, move or supply energy, with standard and any special licence conditions once granted.
UK renewables generated 50.8% of UK electricity in 2024, up from 46.4% in 2023, with output reaching 144.7 TWh.
CMS market share among UK Renewable Energy
Share of the 2,825 UK Renewable Energy with a detectable system. As of June 2026.
What else do WordPress-running Renewable Energy run?
Share of the 2,029 WordPress-running UK companies where each technology was also detected. As of June 2026.
Where WordPress Renewable Energy are, and how healthy they look
By region
By registered-office region; companies without a regional match count toward Rest of UK.
By financial health
From filed accounts; firms with fewer than two filings show as insufficient history.
5
Median headcount
£610.3K
Median UK turnover
7.4%
Above £5M turnover
240
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 3,860 companies, alongside financials and websites, in one CSV file.
Top UK Renewable Energy using WordPress
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
Financial sub-scores
Computed from 2 filingsGenerates electricity using onshore wind turbines. Owns and operates a portfolio of over 200 turbines and provides operational management, maintenance, and asset management using proprietary software…
Serves wholesale electricity buyers and power offtake counterparties, with onshore wind generation assets located across Great Britain.
Financial Health
StableStable · 0% CAGR over 1y
Location
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Computed from 5 filingsDevelops and supplies renewable electricity through solar PV, battery energy storage, onshore wind and EV infrastructure projects. Provides grid connection applications, high‑voltage works and…
Serves UK local authorities, water companies, utilities and large corporate businesses involved in renewable energy programmes and infrastructure development across the UK.
Financial Health
StrongStrong · Growing, Hiring · 43% CAGR over 5y
Location
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Computed from 3 filingsDevelops, builds, and operates large-scale photovoltaic solar power plants and energy storage systems. Provides project development, engineering, construction support, and operational services for…
Serves UK landowners and energy-sector organisations involved in large-scale solar, wind-solar and battery storage projects, including partners and stakeholders in renewable electricity…
Financial Health
StableStable · Hiring · 200% CAGR over 2y
Location
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Computed from 4 filingsDevelops, builds and operates utility‑scale renewable energy projects including solar farms, wind installations and battery storage. Acts as an independent power producer, managing project design,…
Serves UK landowners and farmers, corporates seeking renewable power purchase agreements, investors, local authorities and local communities involved in utility-scale solar, wind and battery projects.
Financial Health
WeakWeak
Location
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Computed from 3 filingsDevelops and operates renewable energy projects, particularly wind and solar power, and provides engineering, plant services, energy trading, storage and district heating solutions, supporting the…
Serves businesses, municipal utilities and local authorities pursuing energy transition projects, plus municipalities, landowners, co-investors, energy plant operators and project developers in wind…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
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Computed from 4 filingsDevelops, owns and operates solar photovoltaic (PV) and battery energy storage system (BESS) projects. Manages project lifecycles including site identification, planning, financing, construction and…
Serves landowners, local communities, developers and businesses, including data centres, seeking renewable energy partnerships linked to solar PV and battery storage projects.
Financial Health
StrongStrong · Hiring · 66% CAGR over 3y
Location
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Computed from 5 filingsOperates and invests in anaerobic digestion facilities that process food and organic waste to produce renewable electricity, biomethane gas, transport fuel and biofertiliser, and provides related…
Serves UK businesses and public-sector bodies with organic or food waste, plus CNG fleet operators, green energy buyers, and agriculture or food industry customers using biofertiliser and compost.
Financial Health
HealthyHealthy · Hiring · 57% CAGR over 4y
Location
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Computed from 3 filingsDevelops renewable energy projects, including solar and battery storage sites. Works with landowners and local communities to identify suitable land, manage planning and development processes, and…
Targets UK landowners with suitable sites for renewable energy projects and engages local communities near proposed developments, including residents and community groups affected by planning and…
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 2y
Location
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Computed from 5 filingsDesigns, finances, installs and operates onsite renewable energy systems for commercial clients under energy‑as‑a‑service agreements, including solar photovoltaic, combined heat and power, biomass,…
Serves UK businesses and organisations with high energy usage, especially those spending over £500,000 per year on energy and seeking lower-cost, lower-carbon onsite heat and power arrangements.
Financial Health
StrongStrong · Growing, Hiring · 17% CAGR over 4y
Location
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Computed from 5 filingsDevelops, finances, builds and operates renewable energy projects as part of an independent power producer business, managing assets across the renewable power value chain including project…
Financial Health
StrongStrong · Hiring · 32% CAGR over 4y
Location
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Computed from 5 filingsProvides operations and maintenance services for solar power plants, including remote monitoring, corrective and preventative maintenance, repowering and inverter installation, spare parts…
Serves owners, operators, investors and asset managers of utility-scale solar power stations and battery storage sites in the solar industry, with customers in the UK and internationally.
Financial Health
HealthyHealthy · -67% CAGR over 4y
Location
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Computed from 5 filingsDevelops, acquires and manages electricity transmission infrastructure projects, including offshore transmission assets, interconnectors and grid substations. Provides project development,…
Serves B2B clients in UK electricity transmission, including infrastructure investors, offshore wind transmission owners, interconnector developers, utilities, regulators and other energy-sector…
Financial Health
StrongStrong
Location
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Computed from 5 filingsProvides asset management, operations and maintenance oversight, and consultancy services for renewable energy projects, particularly wind farms. Manages contractors, engineering, finance,…
Serves B2B customers in the renewable energy sector, particularly wind farm owners, operators, asset owners and investors across established and emerging power technologies.
Financial Health
HealthyHealthy · Hiring · 15% CAGR over 4y
Location
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Computed from 5 filingsDevelops and delivers wind turbine and solar photovoltaic projects for commercial clients, including single turbines, small wind farms, and rooftop or ground‑mounted PV systems. Provides energy…
Targets UK commercial energy users and renewable asset owners, including businesses with rooftops, land for small wind/solar schemes, or existing assets needing O&M and asset management.
Financial Health
HealthyHealthy
Location
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Computed from 3 filingsDevelops large-scale solar photovoltaic farms and battery energy storage projects. Activities include site identification, land agreements, project design, planning and permitting, and managing…
Serves business and landowner customers involved in large-scale renewable energy projects, particularly utility-scale solar and energy storage. Targets landowners and project stakeholders in the UK,…
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 2y
Location
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Computed from 5 filingsDevelops and delivers commercial renewable energy projects including wind turbines, solar PV rooftop and ground‑mounted systems, and energy storage. Provides project development, installation,…
Serves UK businesses, commercial property owners and renewable asset owners, including organisations with sites suitable for rooftop or ground-mounted solar, single turbines or small wind…
Financial Health
HealthyHealthy · Hiring · 15% CAGR over 4y
Location
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Computed from 5 filingsDesigns and delivers renewable energy systems for commercial and public sector clients, including rooftop and ground‑mount solar PV, solar farms, battery storage and EV charging. Provides project…
Serves commercial, industrial and public sector organisations, including logistics, foodservice, manufacturing and facilities-based businesses seeking to manage energy costs and sustainability…
Financial Health
HealthyHealthy · -49% CAGR over 5y
Location
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Computed from 3 filingsDevelops, invests in, and manages renewable energy projects including solar photovoltaic, onshore and offshore wind, battery energy storage, hybrid systems, and green hydrogen, providing project…
Serves municipalities, investors, landowners, farmers, and industrial or commercial businesses across Europe involved in renewable energy development, land use, and decarbonisation projects.
Financial Health
StableStable · Hiring · 36% CAGR over 2y
Location
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Computed from 5 filingsDevelops, finances, builds and operates projects in the energy and controlled‑environment agriculture sectors. Activities include combined heat and power plants, gas peaking, battery storage and…
Serves horticultural growers, controlled-environment agriculture businesses, commercial and industrial energy users, construction funders and landowners involved in UK sustainable energy projects.
Financial Health
HealthyHealthy
Location
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Computed from 3 filingsDevelops and manages renewable energy projects focused on wind power. Provides feasibility studies, land leasing arrangements, installation, monitoring, and maintenance of wind turbines and battery…
Serves UK landowners, businesses and communities with wind energy assets, especially owners of underperforming turbines or sites in grid-constrained areas seeking renewable energy generation…
Financial Health
StableStable
Location
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Computed from 3 filingsDevelops and finances commercial solar energy projects for businesses, installing rooftop and ground-mounted photovoltaic systems and solar carports. Offers funded models such as power purchase…
Serves commercial and industrial businesses with high electricity use and available roof or ground space, including agriculture, chemicals, data centres, education, food and drink, manufacturing,…
Financial Health
HealthyHealthy · -58% CAGR over 2y
Location
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Computed from 3 filingsDesigns and installs commercial renewable energy systems including rooftop, ground‑mounted and carport solar PV, battery storage and LED lighting. Provides feasibility studies, project development,…
Serves businesses and public-sector organisations, including manufacturing, leisure, commercial real estate, education providers, councils and retailers seeking to reduce energy costs and carbon…
Financial Health
StrongStrong · Growing, Hiring · 34% CAGR over 2y
Location
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Computed from 4 filingsProvides installation, maintenance and servicing for renewable energy systems including wind turbines, solar PV, combined heat and power (CHP) and high‑voltage infrastructure. Supports planning,…
Serves landowners, renewable energy developers and manufacturers involved in wind, solar, CHP and battery storage projects across the UK.
Financial Health
StrongStrong · Growing · 0% CAGR over 3y
Location
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Computed from 5 filingsProvides engineering, procurement and construction (EPC) services for renewable energy projects. Develops investment opportunities, designs and builds utility‑scale and rooftop installations, and…
Serves B2B clients in the renewable energy sector, including investors, project owners and commercial customers developing utility-scale and rooftop installations across European markets.
Financial Health
StrongStrong · Hiring · 7% CAGR over 4y
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Computed from 3 filingsDevelops and advises on utility‑scale renewable energy projects, including solar power and energy storage systems. Provides project development services such as design, financing, construction…
Serves businesses and communities, especially large energy-intensive organisations, as well as landowners, investment partners, energy buyers and suppliers involved in utility-scale renewable energy…
Financial Health
StrongStrong · Hiring · 13% CAGR over 2y
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Computed from 4 filingsDevelops and invests in flexible power and energy infrastructure projects, including advanced power generation and storage assets. Manages a portfolio of capacity designed to support electricity grid…
Serves UK electricity market and energy infrastructure stakeholders involved in the transition to net zero, including grid-related counterparties and power sector organisations.
Financial Health
HealthyHealthy · Hiring · 36% CAGR over 3y
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Computed from 5 filingsInvestment firm focused on energy transition assets, providing capital and investment management for battery energy storage, distributed energy and demand‑side response projects. Uses market analysis…
Serves family office and institutional investors seeking exposure to energy transition assets, particularly battery storage, distributed energy and demand-side response markets.
Financial Health
HealthyHealthy · Hiring · 60% CAGR over 4y
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Computed from 5 filingsDevelops and manages renewable energy projects, including wind power generation. Works with landowners to identify and develop sites for clean power infrastructure and collaborates on peatland…
Serves UK energy buyers and grid stakeholders, landowners and tenants involved in renewable energy or peatland projects, and local communities around clean energy developments.
Financial Health
HealthyHealthy · Hiring · 37% CAGR over 4y
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Computed from 5 filingsDesigns, develops and manages renewable energy projects integrating wind, solar and battery energy storage systems. Supplies wind turbines, microgrid and remote power solutions, and provides…
Targets businesses and public-sector organisations with energy-intensive sites or remote operations, including industrial facilities, island/microgrid users and organisations seeking funded renewable…
Financial Health
StrongStrong · Growing, Hiring · 24% CAGR over 4y
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Computed from 5 filingsAdvises renewable energy generators and investors on power and gas sales. Structures and negotiates power purchase agreements, manages route-to-market trading, and trades environmental certificates…
Serves B2B and public-sector clients in renewable energy, including generators, private developers, investors, large landowners, institutional funds, private estates, local authorities and financial…
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
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Computed from 5 filingsDesigns, supplies, installs and maintains renewable energy systems for commercial and public sector buildings, including solar PV, battery storage, electric vehicle charging and heat pumps, with…
Serves non-domestic organisations across the UK, including farms, schools, healthcare sites, public sector estates, social housing providers, manufacturers, logistics operators, retailers, developers…
Financial Health
StrongStrong · Growing, Hiring · 72% CAGR over 4y
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Computed from 3 filingsCoordinates community investment initiatives that raise capital through share offers to acquire and operate community-owned solar farms. Partners with energy groups to manage renewable generation…
Serves individual investors and local community members across the UK, plus community energy organisations connected to local renewable energy projects.
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 2y
Location
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Computed from 4 filingsProvides operations and maintenance services for power generation and industrial facilities, including conventional and renewable plants. Offers engineering consulting, regulatory and grid compliance…
Serves B2B energy and industrial asset owners, utilities, developers and operators of conventional power plants, renewable energy facilities, energy storage, transmission assets and complex…
Financial Health
StrongStrong · Profitable, Hiring · 24% CAGR over 3y
Location
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Computed from 5 filingsProvides retrofit and energy services for social housing, installing technologies such as solar panels and batteries, aggregating homes to purchase electricity and participate in flexibility markets,…
Serves UK social housing landlords and their residents, alongside institutional investors and funders focused on climate and social-impact opportunities in housing retrofit and energy efficiency.
Financial Health
StrongStrong · Hiring · 47% CAGR over 4y
Location
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Computed from 4 filingsOperates wind turbines to generate and supply electricity as a renewable energy producer, developing and managing wind energy assets and selling generated power to the grid.
Serves growing and established niche businesses, mainly in energy, logistics and property, seeking long
Financial Health
StableStable · Hiring · 8% CAGR over 5y
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Computed from 3 filingsDevelops and evaluates energy storage projects using high‑density fluid hydropower technology, including studies to deploy underground pumped storage systems within former mine workings. Activities…
Financial Health
StrongStrong · 100% CAGR over 1y
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Computed from 4 filingsProvides construction, mechanical installation, and project management services for ground-mounted solar photovoltaic farms. Also offers consulting, operations support, and maintenance for…
Serves B2B customers in utility-scale solar, including solar farm developers, asset owners and project teams needing support for ground-mounted PV parks, operations and maintenance, and large…
Financial Health
StrongStrong · Growing, Hiring · 44% CAGR over 3y
Location
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Computed from 3 filingsDesigns, supplies and installs commercial solar photovoltaic systems and related energy infrastructure, including battery storage, EV charging and electrical upgrades. Provides consultancy,…
Serves UK commercial, industrial and public-sector organisations, including schools, universities, healthcare sites, offices, retailers, car dealerships, data centres, manufacturers, farms, logistics…
Financial Health
HealthyHealthy · -89% CAGR over 2y
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Computed from 2 filingsOperates a hydroelectric power facility generating renewable electricity from water resources, including the operation and maintenance of small-scale hydropower infrastructure as part of a portfolio…
Serves hydropower plant owners and operators on a B2B basis, including customers needing development, operations, maintenance and management support for large and small hydro projects.
Financial Health
StrongStrong
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Computed from 5 filingsDesigns and installs renewable energy and electrical systems, including ground‑mounted and rooftop solar PV, battery storage, EV charging infrastructure, anaerobic digestion and hydro power…
Serves B2B clients including renewable energy developers, asset owners, and commercial or industrial organisations delivering solar, battery storage, anaerobic digestion, EV charging, hydro and…
Financial Health
HealthyHealthy · -67% CAGR over 4y
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Computed from 5 filingsDesigns and installs high‑voltage electrical infrastructure and power distribution systems. Provides grid connections, substation design and build, cabling, testing, commissioning and maintenance for…
Serves B2B customers in renewable energy, generation, grid stability, battery storage, EV infrastructure, nuclear, and commercial/industrial sectors, including developers and operators of…
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 4y
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Computed from 2 filingsDesigns, installs and manages commercial solar photovoltaic systems, including rooftop, ground-mounted and carport installations. Provides EPC contracting, battery storage integration, operations and…
Serves UK commercial businesses, agricultural operators and landowners with sites suitable for rooftop, carport or ground-mounted solar projects.
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
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Computed from 4 filingsDesigns, supplies and installs commercial solar photovoltaic (PV) systems, including rooftop solar, solar carports and battery storage. Provides system design, performance modelling, installation,…
Serves commercial organisations and public-sector buyers, including construction developers and contractors, schools, food manufacturers, retailers, data centres and sporting venues seeking solar…
Financial Health
StrongStrong · Growing, Hiring · 8% CAGR over 3y
Location
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Computed from 5 filingsProvides high‑voltage electrical engineering services for transmission and distribution networks, including commissioning at 400kV and 275kV, protection and control system testing, factory acceptance…
Serves B2B clients in electrical transmission and distribution, including transmission system operators, renewable and nuclear generation projects, offshore wind farms, substations and high-voltage…
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 4y
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Computed from 5 filingsProvides engineering services for onshore wind turbines, including maintenance and servicing of 500kW–3MW turbines. Supplies turbine components and parts through an online catalogue covering…
Serves onshore wind farm owners, operators and renewable energy utilities in Scotland and across the UK, particularly organisations managing 500kW–3MW turbines and sourcing wind turbine servicing or…
Financial Health
StrongStrong · Growing, Hiring · 34% CAGR over 4y
Location
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Computed from 4 filingsDevelops and operates a solar photovoltaic park generating renewable electricity, forming part of a portfolio of utility‑scale solar energy projects developed and managed for grid‑connected power…
Serves B2B and institutional customers involved in renewable energy and circular economy projects, including infrastructure investors, financing partners, utilities, and industrial organisations…
Financial Health
StrongStrong · Profitable
Location
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Computed from 5 filingsDesigns, manufactures and supplies lithium‑ion battery energy storage systems and hybrid power generators for commercial and industrial use. Offers Hussh Pod BESS units for purchase, hire or lease to…
Serves UK commercial organisations needing temporary or purchased power systems, including construction, healthcare, data centres, TV and film, rail, utilities, telecoms, EV charging and tower crane…
Financial Health
StrongStrong · Growing, Hiring · 63% CAGR over 4y
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Computed from 2 filingsDevelops and invests in onshore wind farm projects generating renewable electricity. Associated developments provide community benefit funding, supporting voluntary organisations and local projects…
Serves not-for-profit voluntary organisations, community groups and some CICs delivering local-benefit projects in Inverclyde. Targets small organisations, typically with annual income under…
Financial Health
StrongStrong
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Computed from 5 filingsProvides investment management and advisory services for renewable energy funds, focusing on solar power. Manages listed and private equity funds, invests in and develops solar energy projects and…
Serves institutional and professional investors seeking exposure to renewable energy infrastructure, including listed fund shareholders and private equity fund investors focused on solar assets.
Financial Health
StrongStrong · Growing, Hiring · 10% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsDesigns, supplies and installs solar photovoltaic systems, including rooftop and ground‑mounted panels, for commercial and other sectors. Also provides battery storage, LED lighting and infrared…
Serves UK businesses, agricultural sites, public-sector organisations and some domestic customers, with emphasis on commercial buyers in manufacturing, warehousing, hospitality, hospitals/medical…
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
Location
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How WordPress usage is detected
Company data
Detected companies are joined to UK Companies House records and XBRL accounts data. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Detection
Firmbase crawls the public website of actively-trading UK companies and fingerprints the technologies present: tracking scripts, embedded forms, chat widgets, CMS markers and similar signatures. A company is included in this list when one or more of the technology's signatures are found on its site; closely-related variants of the same product are grouped under one name. Detection covers what is visible on the public web — a company using the technology purely internally, with no website footprint, will not appear. Counts are therefore a conservative floor, not a ceiling. Renewable energy companies are identified using Firmbase's semantic classification of company activity, built from filings, websites and registered SIC codes rather than SIC codes alone. The detected counts and share figures on this page are computed within that sector cohort, so "share" always means share of Renewable energy companies with a detectable system — not of all UK companies.
Freshness
Websites are re-crawled on a rolling basis and the underlying company data is refreshed from Companies House continuously; filings appear within days of submission. The list and its statistics are regenerated when the detected cohort moves meaningfully. You can see the last-updated timestamp near the top of the page.
WordPress is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
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Frequently asked questions
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