Renewable Energy Companies Using Cloudflare in the UK: 904 Active Firms (2026)
Renewable energy operators in the UK generate, move or supply low-carbon power while running edge web security on public websites.
For renewable-energy operators, edge web security sits between public communications and operational credibility. Companies running this stack tend to use their websites for more than brochureware: investor updates, customer acquisition, landowner contact, procurement notices, community engagement and media hosting all depend on reliable public access. Adoption usually signals a business with enough commercial scale to care about bot filtering, traffic analytics, page performance and uptime, even where the core operating assets sit elsewhere. In this sector, the relevant buying centres are often split between marketing, IT, compliance and asset-development teams, rather than a single software owner.
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The UK adoption picture covers 904 trading renewable-energy operators running the profiled edge-security stack. Reported employment totals 2,633 people, giving the cohort a visible workforce footprint as well as a public-web adoption signal. Within renewable energy, the stack sits first in the detected CDN ranking, with 93.3% share on a denominator of 969. Registered-region skew is fairly distributed by UK standards: London accounts for 16.4%, followed by the South West at 16.0%, the South East at 13.8%, the North West at 9.5% and the East of England at 7.6%.
Great Britain’s renewable-energy operators sit close to Ofgem’s licensing perimeter when they generate, move or supply energy. A licence brings standard and, in some cases, special conditions, so public-facing systems may support activity that is operationally regulated even when the website itself is not. Legacy Renewables Obligation accreditation adds a further compliance layer for eligible stations, with audit checks and generation submissions for certificates. RenewableUK gives the sector a trade-body channel across deployment and export activity, which matters for companies whose public sites carry planning, stakeholder, procurement and investor material.
Adoption appears likely to remain pragmatic rather than speculative. Renewable-energy firms with customer portals, investor relations pages, landowner workflows or community-consultation content tend to favour managed edge controls because downtime and nuisance traffic create operational friction. Smaller developers may stay with simpler hosting arrangements until external communications become more demanding. The main pressure points are likely to come from bundled security and performance tooling, supplier consolidation, and the need to standardise web estates after acquisitions or project-portfolio changes. Buyers will still weigh this against lean internal teams and relatively long infrastructure sales cycles.
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 Cloudflare rises with company size across the trading UK Renewable energy companies in this cohort. 24.3% of the 2,672 companies with under 10 employees run Cloudflare (650 detected). 26.9% of the 824 companies with 10–50 employees run Cloudflare (222 detected). 37.8% of the 74 companies with over 50 employees run Cloudflare (28 detected). That is a 13.5% gap between the over 50 employees and under 10 employees bands.
904
Active firms
2026
93.3%
Of detected CDN share
UK Renewable energy
5
Median headcount
Filed accounts
2,219
Verified directors
Across this cohort
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Key facts
About 8% of the trading cohort reports turnover above £5M (78 of 904 firms) — the rest sits below that revenue band.
12% of the cohort was incorporated since 2022 (113 firms), so a sizeable share is in its first few filing cycles.
Within renewable-energy companies with a detectable CDN, the CDN in scope accounts for 93.3% (904), compared with 4.9% (47) and 4.7% (46) for the next two detected systems.
A content-management system is also detected on 56.9% (514) of the cohort, while analytics and tag-management tools appear on 46.9% (424) and 38.8% (351).
Registered offices for the CDN-running renewable-energy cohort are concentrated in London at 16.4% (148), the South West at 16.0% (145) and the South East at 13.8% (125).
Ofgem licensing covers businesses generating, moving or supplying energy, with standard and any special licence conditions applying once a licence is granted.
UK renewables generated 50.8% of UK electricity in 2024, up from 46.4% in 2023, and output reached 144.7 terawatt hours.
CDN market share among UK Renewable Energy
Share of the 969 UK Renewable Energy with a detectable system. As of June 2026.
What else do Cloudflare-running Renewable Energy run?
Share of the 904 Cloudflare-running UK companies where each technology was also detected. As of June 2026.
Where Cloudflare 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
£640.5K
Median UK turnover
8.6%
Above £5M turnover
113
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 2,024 companies, alongside financials and websites, in one CSV file.
Top UK Renewable Energy using Cloudflare
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 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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Financial sub-scores
Computed from 5 filingsGenerates electricity from biomass and hydro power stations, produces and sells wood pellets for energy, supplies business electricity and energy services, and develops carbon capture and energy…
Serves businesses, utilities and public-sector stakeholders, including corporate energy buyers, biomass pellet customers, power-sector partners and organisations interested in carbon removals in the…
Financial Health
StableStable
Location
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Financial sub-scores
Computed from 5 filingsDevelops, builds, and operates renewable energy projects, including utility-scale solar farms and battery storage. Provides project development, engineering, construction, and long-term operation of…
Serves UK landowners and farmers, corporates seeking renewable power purchase agreements, investors, local authorities and communities involved in utility-scale solar, wind and battery projects.
Financial Health
WeakWeak · 0% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsOperates as a holding company for a group developing, owning and operating renewable energy assets including utility-scale wind, solar and hydropower projects. Also provides corporate decarbonisation…
Serves B2B energy buyers, including large corporates and industrial organisations pursuing net-zero goals, as well as utility-scale power purchasers seeking renewable energy and decarbonisation…
Financial Health
StableStable · -16% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsDevelops the Bowdun offshore wind farm project, including planning and development of fixed‑foundation wind turbines and associated onshore infrastructure to generate over 1GW of electricity and…
Serves National Grid and the UK wholesale electricity market, with output intended for electricity suppliers and households connected to the transmission network.
Financial Health
HealthyHealthy
Location
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Financial sub-scores
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 2 filingsActs as a holding and investment company for battery energy storage system (BESS) projects. Develops, owns and manages grid-scale battery storage assets that store electricity and supply power to…
Serves electricity networks, project partners and infrastructure investors involved in battery energy storage, alongside local communities affected by projects. Targets energy-sector stakeholders…
Financial Health
StrongStrong
Location
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Computed from 5 filingsInvests in, develops and operates renewable energy and battery storage projects, including onshore wind and solar installations. Provides asset management, power supply and optimisation services, and…
Targets institutional investors, large power users, landowners, communities and public sector bodies in renewable energy and battery storage markets across Asia, Australia, UK/Europe and the USA.
Financial Health
StrongStrong
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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Financial sub-scores
Computed from 4 filingsDevelops, constructs and services renewable energy projects including wind, solar and energy storage. Provides asset management, operations and maintenance, consultancy, construction management,…
Serves B2B renewable energy investors, asset owners and operators, utilities, landowners and local communities involved in wind, solar, storage, transmission and green hydrogen projects globally.
Financial Health
StrongStrong · Hiring · 15% CAGR over 4y
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 3 filingsDevelops a utility-scale offshore wind farm project intended to generate around 1GW of electricity using floating turbine foundations. Activities include project development, environmental and…
Serves the UK electricity system via the national grid, with output positioned for household electricity consumers and broader renewable energy demand.
Financial Health
HealthyHealthy
Location
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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
Location
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Computed from 3 filingsDevelops and delivers renewable energy projects, specialising in large-scale solar parks and commercial solar PV systems. Provides development, design, planning, grid connections, financing,…
Serves UK landowners, landlords, commercial property owners, industrial sites, schools and investors involved in large-scale solar parks and commercial renewable energy projects.
Financial Health
StrongStrong · Hiring · 22% CAGR over 2y
Location
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Computed from 5 filingsDevelops, designs and builds grid‑scale battery energy storage systems. Provides project management, engineering and control system integration, software development, and optimisation services for…
Targets B2B energy-sector customers, including renewable power-grid participants, battery storage asset owners and landowners with sites suitable for storage projects in the UK and Ireland.
Financial Health
StableStable · Hiring · 21% CAGR over 4y
Location
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Computed from 3 filingsDevelops offshore wind farm projects, including the Ayre floating‑foundation and Bowdun fixed‑foundation sites, progressing planning, consenting and supply chain engagement for large‑scale renewable…
Financial Health
HealthyHealthy · Hiring · 379% CAGR over 2y
Location
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Computed from 5 filingsDevelops utility-scale solar photovoltaic and battery energy storage projects. Identifies sites, undertakes design and planning, and manages development of renewable energy assets for grid-connected…
Serves landowners, farmers, local communities and energy-sector partners involved in utility-scale solar PV and battery storage projects, mainly in the UK.
Financial Health
HealthyHealthy
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 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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Computed from 4 filingsAcquires and develops regulated energy infrastructure projects and companies in the renewable energy and utilities sectors. Focuses on solar, wind and battery storage assets, and provides financing…
Serves lenders, investors and landowners involved in renewable energy infrastructure, including heat and electricity, grid balancing, solar, wind and battery storage projects.
Financial Health
StrongStrong
Location
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Computed from 3 filingsDesigns, funds, installs and manages renewable energy systems for commercial and industrial sites, including solar PV, battery storage and electric vehicle charging infrastructure, providing fully…
Serves commercial and industrial businesses seeking funded renewable energy projects, including organisations with sites suitable for solar, energy storage, EV charging, or roof refurbishment.
Financial Health
StrongStrong · Hiring · 23% CAGR over 2y
Location
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Computed from 2 filingsDevelops and supplies battery energy storage systems for electricity networks and renewable energy projects. Provides related services and cloud-based software for asset performance management,…
Serves utilities, grid/network operators, renewable energy developers and asset owners, and large industrial energy users seeking storage and software for renewables and storage assets.
Financial Health
HealthyHealthy · Hiring · 199% CAGR over 1y
Location
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Computed from 5 filingsProvides asset management, technical advisory and data services for renewable energy assets, particularly solar PV and battery storage. Services include technical and financial asset management, 24/7…
Serves renewable energy asset owners, investors, lenders, developers and asset managers, particularly those involved in solar PV and battery storage projects.
Financial Health
HealthyHealthy · 2% CAGR over 4y
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Computed from 3 filingsDevelops, funds, structures and delivers large-scale renewable energy and sustainable agriculture projects. Focuses on solar and energy storage installations and partners with investors, corporations…
Serves funds, multinational organisations, large-scale farming businesses, institutions and blue-chip industrial clients seeking large-scale renewable energy and sustainable agriculture project…
Financial Health
StableStable · -90% CAGR over 2y
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Computed from 5 filingsDevelops and delivers large‑scale energy infrastructure projects, including solar parks, battery energy storage systems and some gas generation facilities. Works with landowners and land agents to…
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HealthyHealthy
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Computed from 5 filingsDevelops utility-scale solar photovoltaic and battery energy storage projects. Identifies sites, prepares project designs, manages planning approvals, and brings renewable energy developments through…
Serves energy-sector partners, landowners, local authorities and communities involved in utility-scale solar PV and battery storage projects, mainly in the UK.
Financial Health
StableStable · Hiring · 54% CAGR over 5y
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Computed from 3 filingsProvides engineering, project management and technical integration services for renewable energy and electrical infrastructure projects, including wind farms, battery storage systems and grid…
Serves B2B clients developing and delivering large-scale energy infrastructure, including major developers, EPC contractors, and UK distribution and transmission network operators in renewables and…
Financial Health
StrongStrong
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Computed from 4 filingsDevelops and repowers wind farm projects, working with landowners and project owners to replace older turbines with modern equipment and improve generation capacity. Focuses on the development of…
Serves landowners and owners of existing mid-sized wind farm projects, particularly those seeking commercial partnerships in Scotland, North West England and South West England.
Financial Health
HealthyHealthy · -7% CAGR over 3y
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Computed from 3 filingsDevelops and manages renewable energy projects including wind farms, solar power, hydrogen, combined heat and power, and energy storage. Involved in project development and expansion of wind and…
Financial Health
HealthyHealthy · -90% CAGR over 2y
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Computed from 5 filingsProvides technical and financial advisory services for renewable energy projects, including site origination and land acquisition, grid connection, planning and permitting, engineering and…
Serves B2B renewable energy developers and asset owners globally, particularly organisations developing solar, wind and battery storage projects, including projects connecting to the UK distribution…
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HealthyHealthy
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Computed from 3 filingsDesigns and manufactures modular battery energy storage systems (BESS) for on‑grid and off‑grid power applications. Supplies integrated storage units for utilities, commercial sites and microgrids,…
Sells to a mix of B2B and public-sector buyers needing energy storage, including utility-scale power projects, commercial and industrial sites, universities and colleges, EV charging operators, and…
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 2y
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Computed from 5 filingsDevelops and operates renewable energy and low‑carbon fuel projects, including wind farms and infrastructure for producing green hydrogen and green ammonia. Integrates power generation, port and…
Targets heavy industry, transport and energy-sector buyers seeking green hydrogen, green ammonia and other clean fuels, with emphasis on global and European energy markets.
Financial Health
HealthyHealthy · 0% CAGR over 4y
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Computed from 5 filingsProvides technical services to onshore and offshore wind farms, including turbine blade inspection, repair and maintenance, high‑voltage works, balance‑of‑plant support, installation, operations and…
Serves B2B customers in the onshore and offshore wind energy sector, including wind farm owners, operators, utilities, developers and contractors needing technical support across global wind projects.
Financial Health
StrongStrong · Hiring · 32% CAGR over 4y
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Computed from 3 filingsOperates a solar photovoltaic park that generates renewable electricity and exports power to the grid. Part of a portfolio of utility-scale solar energy projects developed, built and managed by a…
Serves corporates seeking renewable power, landowners and farmers, investors, local communities and local authorities involved in UK utility-scale renewable energy projects.
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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
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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…
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StrongStrong · Growing, Hiring · 15% CAGR over 4y
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Computed from 5 filingsProvides commissioning, maintenance and technical servicing for onshore wind turbines and wind farms. Activities include inspection, repairs, remote monitoring, training and lifecycle support to…
Serves B2B energy-sector customers worldwide, including utilities, independent power producers, project developers and wind farm owners/operators developing or managing onshore wind farm projects.
Financial Health
StrongStrong · Profitable
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Computed from 4 filingsProvides public electric vehicle charging infrastructure, installing and operating on‑street, lamppost and car park charge points. Works with local authorities to deploy and manage charging networks…
Serves UK local governments seeking public EV charging infrastructure partners and EV drivers who need on-street, car park or lamppost charging near where they park.
Financial Health
StrongStrong · Hiring · 83% CAGR over 5y
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Computed from 4 filingsDesigns, installs and commissions electrical and renewable energy infrastructure, including battery energy storage systems, grid transformers and hydrogen electrolysers. Provides high‑voltage…
Serves B2B clients in renewable energy, hyperscale data centres and utilities, including grid operators, power generation asset owners and organisations needing high-voltage electrical infrastructure.
Financial Health
StrongStrong · Hiring · 38% CAGR over 3y
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Computed from 3 filingsProvides engineering, procurement, construction and maintenance services for utility and infrastructure networks, including power, renewable energy, water and wastewater, and fibre telecoms.…
Serves utilities, energy and digital infrastructure clients, including distribution network operators, water companies, telecoms providers, renewable energy developers and public infrastructure…
Financial Health
StrongStrong · Profitable, Hiring · 17% CAGR over 2y
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Computed from 5 filingsSupplies electricity and gas to business customers, offering fixed-term tariffs, renewable electricity and carbon-neutral gas options. Provides energy contract management for SMEs and multi-site…
Serves UK businesses needing energy supply, including SMEs, large accounts and multi-site organisations seeking electricity, gas, renewable electricity or carbon-neutral gas contracts.
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StableStable · -35% CAGR over 5y
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Computed from 5 filingsDevelops, owns and operates power generation assets and energy projects, including diesel and renewable power plants. Invests in and manages a portfolio of electricity generation projects, with a…
Financial Health
WeakWeak · -11% CAGR over 4y
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Computed from 3 filingsProvides managed maintenance and operational support services for offshore and onshore wind farms, including supply of technicians and inspectors, turbine inspections, balance of plant services, oil…
Serves B2B clients in the offshore and onshore wind energy sector, including wind farm owners, operators, asset managers and OFTO asset holders across the UK and North West Europe.
Financial Health
StrongStrong · Hiring · 15% CAGR over 2y
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Computed from 5 filingsActs as a fixed income debt manager and placement agent focused on renewable energy, clean infrastructure and social housing projects. Structures and arranges equity, mezzanine and senior debt…
Serves institutional investors such as banks, pension funds and insurers, alongside renewable energy, clean infrastructure and social housing project developers seeking access to long-term financing…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
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Computed from 5 filingsDevelops, manufactures and supplies solar power systems and renewable energy solutions. Integrates technologies such as solar generation, wind, hydro and energy storage, and provides grid…
Serves businesses and utilities, including technology and data centre operators, mining and metals companies, commercial and industrial energy users, and utilities and cooperatives.
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
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Computed from 5 filingsProvides engineering, environmental and project management consultancy for renewable energy developments. Services include feasibility studies, planning and environmental assessments, grid and…
Serves farmers, landowners, renewable energy developers, community groups, investors and lenders involved in small and medium-scale wind, solar, hydro, storage and hybrid projects across the UK.
Financial Health
StrongStrong · Hiring · 15% CAGR over 5y
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Computed from 5 filingsProvides investment management products and services, including funds, bonds, and inheritance tax planning solutions. Invests in sectors such as renewable energy, infrastructure, property finance,…
Serves individual investors, financial advisers and institutional investors, plus businesses and intermediaries seeking funding in renewable energy, infrastructure, property, healthcare, specialist…
Financial Health
StrongStrong
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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
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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 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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How Cloudflare 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.
Cloudflare 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
How many UK Renewable energy companies use Cloudflare?
What share of UK Renewable energy companies run Cloudflare?
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