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PV Installation Companies Using Cloudflare in the UK: 365 Active Firms (2026)
PV installers running edge web infrastructure design and fit solar generation systems for homes and businesses across the UK.
For solar installation contractors, the named edge stack usually sits between the public website, marketing tags and customer enquiry flow. Its job is less visible than the installation work itself: routing traffic, filtering automated abuse, accelerating media-heavy project pages and keeping quotation or support forms available when campaign traffic arrives. Adoption tends to signal a contractor with an active direct-sales channel, some internal or agency web capability, and enough operational dependency on online leads to care about uptime, page speed and security controls. The buyer is often a commercial or operations lead, with technical support outsourced.
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The UK cohort covers 365 trading PV installers running this edge stack. The reported employment base is 1,934 people, giving the adoption picture a visible field-service footprint rather than a purely micro-business profile. Within detected content-delivery-network use in this sector, the stack ranks first, at 93.8% of a 389-company category comparison. Registered-office skew is clearest in the South West (20.0%), South East (14.0%), London (13.2%), North West (9.3%) and East of England (7.7%).
Online quotation and support journeys put these installers inside ordinary UK privacy and electronic-marketing obligations, even when the edge layer is bought as a managed service. Consent banners, enquiry forms, analytics scripts and media delivery all sit close to personal data capture, so procurement is not just a hosting decision. Commercial and public-sector customers may also ask how web traffic is routed, logged and protected before sharing site details or tender documents. The operating burden tends to fall between web agencies, sales operations and whichever manager owns installation enquiries.
Adoption appears likely to follow the shape of installer sales channels rather than the economics of solar hardware. Contractors with direct acquisition, education-led content and repeat maintenance work tend to have more reason to keep managed edge controls in place; smaller firms relying on referrals may treat the website as a brochure. Bundling by website agencies could keep the stack embedded, while consolidation among installers may standardise web operations. The constraint is usually organisational: quotation workflows, CRM hygiene and after-sales support have to mature before the infrastructure layer becomes especially visible.
Adoption by company size
Adoption of Cloudflare rises with company size across the trading UK PV installation companies in this cohort. 21.2% of the 1,213 companies with under 10 employees run Cloudflare (257 detected). 22.2% of the 410 companies with 10–50 employees run Cloudflare (91 detected). 40% of the 30 companies with over 50 employees run Cloudflare (12 detected). That is a 18.8% gap between the over 50 employees and under 10 employees bands.
365
Active firms
2026
93.8%
Of detected CDN share
UK PV installation
6
Median headcount
Filed accounts
778
Verified contacts
Across this cohort
Key facts
About 6% of the trading cohort reports turnover above £5M (24 of 365 firms) — the rest sits below that revenue band.
8% of the cohort was incorporated since 2022 (31 firms), so a sizeable share is in its first few filing cycles.
Within PV installation firms with a detectable CDN, this edge-infrastructure system accounts for 93.8% (365 of 389); the next detected CDN alternative is at 2.6% (10).
The regional skew is towards the South West at 20.0% (73), ahead of the South East at 14.0% (51) and London at 13.2% (48).
Content-management tooling is detected alongside the CDN at 63.6% (232), with tag-management tooling at 43.3% (158) and analytics at 42.2% (154).
Sector tags cluster around Renewable Energy at 91.0% (332) and Field Services & Trades at 76.4% (279), with Construction at 17.3% (63).
Form-security tooling and search-optimisation plug-ins both appear on 27.7% (101), pointing to web enquiry handling as a common sales-operation concern.
CDN market share among UK PV Installation
Share of the 389 UK PV Installation with a detectable system. As of June 2026.
What else do Cloudflare-running PV Installation run?
Share of the 365 Cloudflare-running UK companies where each technology was also detected. As of June 2026.
Where Cloudflare PV Installation 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.
6
Median headcount
£641.9k
Median UK turnover
6.6%
Above £5M turnover
31
Incorporated since 2022
778 verified decision-maker contacts
across these 365 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK PV Installation 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 5 filingsDesigns, installs and maintains renewable energy systems including solar photovoltaic panels, battery storage and electric vehicle charging equipment for residential and commercial properties. Also…
Serves homeowners, business owners and public-sector/community organisations in the South of England, including agriculture, care homes, corporates, councils, data centres, facilities management,…
Financial Health
StrongStrong · Growing, Hiring · 11% CAGR over 5y
Location
Financial sub-scores
Computed from 3 filingsDesigns, installs and maintains renewable energy and energy efficiency systems for commercial and public sector buildings, including solar PV, EV charging infrastructure, energy storage, and heat…
Serves B2B and public sector buyers across the UK, including construction, agricultural, commercial, industrial, education and healthcare organisations, plus warehouses, cold storage and leisure…
Financial Health
StrongStrong · Profitable, Hiring · 13% CAGR over 2y
Location
Financial sub-scores
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
Location
Financial sub-scores
Computed from 4 filingsDesigns, supplies, installs, and maintains solar photovoltaic systems, battery storage, and electric vehicle charging equipment for residential and commercial properties. Also provides solar…
Serves homeowners and businesses across the UK, including domestic customers, commercial property owners and organisations seeking solar, battery storage or EV charging solutions.
Financial Health
StrongStrong · Growing, Hiring · 54% CAGR over 3y
Location
Financial sub-scores
Computed from 4 filingsInstalls solar photovoltaic systems and battery storage for homes and businesses. Services include in-roof and off‑grid solar installations, commercial solar for farms and warehouses, system…
Serves homeowners and businesses across Yorkshire, including factories, warehouses, farms and agricultural operators, seeking residential or commercial solar and battery systems.
Financial Health
StrongStrong · Growing, Hiring · 36% CAGR over 3y
Location
Financial sub-scores
Computed from 5 filingsDesigns and installs commercial solar photovoltaic systems for businesses and institutions. Provides battery storage integration, power purchase agreement financing, and ongoing operations,…
Serves commercial and industrial businesses, property developers, councils, NHS estates, schools and universities, with emphasis on organisations in the Midlands and South East seeking large-scale…
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 5y
Location
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
Financial sub-scores
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
Financial sub-scores
Computed from 4 filingsDesigns, installs and manages commercial solar photovoltaic energy systems. Provides consultation, system design, planning, installation, testing, commissioning and monitoring services enabling…
Serves UK businesses and public sector organisations with on-site energy needs, including distribution, farming and agriculture, industrial and manufacturing, food and drink, print and publishing,…
Financial Health
StrongStrong · Growing, Hiring · 20% CAGR over 3y
Location
Financial sub-scores
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
Financial sub-scores
Computed from 5 filingsDesigns and installs solar photovoltaic systems and battery storage for residential, commercial and agricultural properties. Provides system design, installation, grid connection, and ongoing…
Serves homeowners, farm operators, commercial businesses and renewable energy investors in Cornwall, Devon and the South West, including families, local employers and agricultural sites.
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 5 filingsInstalls solar photovoltaic (PV) systems for residential and commercial properties, including panels, inverters and battery storage. Provides system design, installation, upgrades and monitoring…
Serves homeowners, existing solar PV owners and businesses across Cornwall, Devon, Bristol and the South West that are evaluating home or commercial solar and battery storage.
Financial Health
StrongStrong · Growing, Hiring · 21% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDevelops, builds and operates solar photovoltaic power plants and battery energy storage systems. Provides EPC, operations and maintenance, and asset management for PV installations, supplies…
Serves businesses and energy-market participants, including utility-scale solar developers, commercial property owners, PV asset owners, European PV installers, and renewable generators seeking…
Financial Health
StrongStrong · Hiring · 14% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsProvides design and installation of solar photovoltaic systems for homes and businesses, including battery storage integration, EV charging points, system retrofits and maintenance services, using…
Serves homeowners and commercial organisations across the North East, including businesses, schools, community centres and churches investing in solar PV, battery storage and EV charging.
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDesigns and installs renewable energy systems for commercial and public sector sites, including solar PV, battery storage, heat pumps and small-scale wind. Provides feasibility, system design,…
Serves UK businesses and public-sector organisations, especially manufacturing and industrial sites, healthcare, education, agriculture, commercial property, and leisure and tourism operators.
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsProvides commercial solar energy services including remote site surveys, feasibility and portfolio assessments, system design and installation, and ongoing monitoring, maintenance and optimisation to…
Serves UK businesses and commercial property owners, including industrial warehouses, logistics sites, farms, offices, laboratories, research campuses and multi-site property portfolios.
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 3 filingsDesigns, installs and maintains industrial solar energy systems for commercial clients, including engineering, procurement and construction of solar PV installations, ongoing operations and…
Serves UK businesses and industrial or commercial site owners seeking to reduce energy costs, lower carbon emissions, and gain more control over on-site energy use.
Financial Health
StrongStrong · Growing, Hiring · 35% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsDesigns and installs commercial solar photovoltaic (PV) systems, including rooftop and ground-mounted arrays and battery storage. Provides system integration, repairs, maintenance, and support for…
Serves businesses and commercial property operators seeking solar PV, battery storage, and maintenance for rooftops, ground-mounted sites, and other premises.
Financial Health
StrongStrong · Growing, Hiring · 30% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDesigns and installs solar energy systems for automotive dealerships, commercial sites, and residential properties. Services include site assessment, system design, installation, and monitoring, with…
Serves UK automotive dealerships and multi-site groups, large commercial and industrial site operators, businesses of all sizes, and homeowners seeking solar installations and energy savings.
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsInstalls and maintains solar photovoltaic (PV) systems for domestic and commercial properties, including rooftop solar panels, battery energy storage, EV charging points, inverter upgrades, and…
Serves a mix of B2C, B2B and public-sector customers: homeowners, non-domestic building owners, businesses with high electricity use, councils, property developers and construction sites across the…
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsProvides design, installation and management of renewable energy systems for commercial clients, including solar PV panels, battery storage, electric vehicle charging points and air source heat…
Serves UK businesses and commercial property operators, including care homes, logistics companies, apartment blocks, sports complexes and resorts, seeking renewable energy and decarbonisation…
Financial Health
StrongStrong · 0% CAGR over 1y
Location
Financial sub-scores
Computed from 4 filingsInstalls renewable energy systems including solar PV panels, battery storage, air source heat pumps, EV charging points and solar carports for homes and businesses. Provides system design, site…
Serves homeowners and businesses across England, Scotland and Wales seeking renewable energy upgrades, including households using finance or grants and property owners adding EV charging or storage.
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 5 filingsProvides solar energy system installation and related electrical services for residential and commercial properties, including rooftop and ground‑mounted solar panels, battery storage systems, EV…
Serves domestic homeowners and commercial organisations with properties in Devon, Cornwall and the wider South West, including businesses looking to manage onsite energy needs.
Financial Health
StrongStrong · Growing, Hiring · 9% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsInstalls and services residential solar energy systems, including solar photovoltaic panels and solar thermal water‑heating systems. Also provides battery storage, upgrades for existing solar thermal…
Serves homeowners across the UK seeking domestic solar PV, solar thermal, battery storage, water softeners, and servicing or upgrades for existing solar thermal systems.
Financial Health
HealthyHealthy · Hiring · 8% CAGR over 5y
Location
Financial sub-scores
Computed from 3 filingsDesigns and installs renewable energy and building improvement systems, including solar panels, battery storage and air source heat pumps, and supplies and installs windows and doors. Delivers…
Serves UK homeowners, commercial property owners, social housing providers, local organisations and Ministry of Defence sites seeking energy-efficiency upgrades and building improvements.
Financial Health
StrongStrong · Growing, Hiring · 11% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsPlans and installs ground-mounted and rooftop mounting systems for large-scale commercial solar panel projects. Provides site surveys, pile testing, foundation and structure installation, panel…
Serves EPC contractors, energy providers and commercial organisations developing large-scale ground-mounted or rooftop solar projects across the UK, including client teams needing delivery partners…
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 5 filingsSupplies and installs renewable energy systems including solar panel arrays and air or ground source heat pumps. Provides system design, installation and maintenance services for residential,…
Serves homeowners, commercial businesses and industrial property owners seeking renewable energy systems across Cambridgeshire, East Anglia, Hertfordshire, Norfolk and Suffolk.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
Financial sub-scores
Computed from 2 filingsDesigns and installs residential and commercial solar panel and battery storage systems, electric vehicle chargers, and heat pumps. Provides renewable energy systems and related installation services…
Serves homeowners across mainland Great Britain, alongside businesses needing commercial-scale energy systems and schools through dedicated programmes.
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 4 filingsInstalls and maintains renewable energy systems for residential and commercial properties, including solar PV panels, solar thermal systems, air source heat pumps, biomass systems and battery…
Serves homeowners, landlords, tenants and commercial clients looking to adopt or maintain low-carbon energy systems, including customers and businesses connected through Octopus Energy.
Financial Health
StrongStrong · Growing, Hiring · 36% CAGR over 3y
Location
Financial sub-scores
Computed from 5 filingsInstalls solar photovoltaic (PV) panels, solar thermal heating systems, and battery storage for domestic and commercial properties. Provides solar panel mounting systems and handles installation and…
Serves homeowners and commercial clients seeking solar PV and battery storage, mainly across North West England and North Wales, including Cheshire, Wrexham, Liverpool, Manchester, Stoke and…
Financial Health
StrongStrong · Hiring · 7% CAGR over 4y
Location
Financial sub-scores
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
Financial sub-scores
Computed from 3 filingsInstalls renewable energy and energy‑efficiency systems for domestic and commercial properties, including solar panels, solar batteries, air and ground source heat pumps, insulation measures,…
Serves UK homeowners seeking grant-funded energy efficiency improvements, alongside commercial and agricultural customers considering renewable energy and insulation upgrades.
Financial Health
StrongStrong · Growing, Hiring · 123% CAGR over 2y
Location
Financial sub-scores
Computed from 4 filingsInstalls renewable energy and heating systems for homes and businesses, including solar PV panels, solar battery storage, air and ground source heat pumps, EV charging points, insulation,…
Serves UK homeowners and businesses looking to reduce energy bills and carbon emissions through renewable energy, heating, insulation and EV charging upgrades.
Financial Health
StrongStrong · Hiring · 26% CAGR over 3y
Location
Financial sub-scores
Computed from 4 filingsDesigns, installs and services renewable energy and heating systems, including solar PV panels, heat pumps, battery storage, underfloor heating, heat recovery systems and EV chargers, for…
Serves B2C homeowners and residential property owners, alongside B2B customers from small commercial premises to large industrial operators with existing and new-build sites.
Financial Health
HealthyHealthy · Hiring · 100% CAGR over 3y
Location
Financial sub-scores
Computed from 5 filingsInstalls solar photovoltaic systems for residential and commercial properties, including solar panels, battery storage, EV charging points and solar carports. Also provides system design,…
Serves homeowners and commercial property owners, from large enterprises to smaller local businesses, across North Wales, the Midlands and the Northwest.
Financial Health
StrongStrong · Hiring · 32% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDesigns and installs solar photovoltaic systems, battery storage and EV charging points for residential and commercial properties. Provides system maintenance, technical support and guidance on solar…
Serves homeowners and businesses across the UK, including domestic property owners, commercial premises operators and existing solar owners seeking lower energy costs and carbon reduction.
Financial Health
StrongStrong · Hiring · 7% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsSupplies and installs renewable energy systems for homes and businesses, including solar panels, battery storage, EV charging points and heat pumps. Provides system design, site surveys,…
Serves UK homeowners seeking lower electricity bills, plus commercial and agricultural customers with properties suitable for solar, battery storage, EV charging or heat pump installations.
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 4 filingsProvides construction and installation services for renewable energy projects, specialising in ground‑mounted solar farms. Carries out piling, mechanical and electrical installation, and supports…
Serves UK renewable energy developers, solar farm owners and EPC partners delivering ground-mounted solar projects, plus commercial organisations planning rooftop solar or other renewable energy…
Financial Health
StrongStrong · Growing, Hiring · 150% CAGR over 3y
Location
Financial sub-scores
Computed from 5 filingsDesigns and installs renewable energy systems for homes and businesses, including solar PV panels, battery storage, heat pumps, and electric vehicle charging points. Also provides system maintenance…
Serves homeowners and business owners with domestic and commercial properties in London, Surrey, Sussex, Hampshire, Berkshire and Kent seeking renewable energy installations and maintenance.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDesigns and installs renewable energy systems for residential and commercial properties, including solar PV panels, photovoltaic‑thermal (PV‑T) systems, battery storage, and air and ground source…
Serves property owners in Kent and the South East UK seeking renewable energy quotes and installations, including solar, heat pump, battery and related clean energy projects.
Financial Health
HealthyHealthy · Hiring · 26% CAGR over 4y
Location
Financial sub-scores
Computed from 3 filingsProvides energy management and renewable energy services for businesses, including commercial solar PV installations, EV charging points, battery storage, LED lighting and heat pumps, alongside…
Targets businesses and public-sector organisations with energy and telecoms needs, including universities, leisure centres, logistics operators and other commercial sites; also serves some domestic…
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsDesigns and installs renewable energy systems for residential and commercial buildings, including ground and air source heat pumps, solar PV, underfloor heating, mechanical ventilation with heat…
Serves homeowners, commercial property owners, large residential developers, public-sector property projects, agricultural buildings, and architects/M&E consultants seeking renewable building energy…
Financial Health
StrongStrong · Hiring · 5% CAGR over 4y
Location
Financial sub-scores
Computed from 3 filingsInstalls renewable and energy‑efficiency systems for residential, commercial and housing association properties, including solar PV and battery storage, air source heat pumps, boilers, EV charging…
Serves homeowners, tenants, landlords, businesses and housing associations across Wales and England, including hospitality operators and affordable housing providers managing residential stock.
Financial Health
StrongStrong · Profitable
Location
Financial sub-scores
Computed from 2 filingsDesigns and installs solar power systems for residential and commercial properties, including tailored photovoltaic installations and energy solutions. Also provides solar panel maintenance,…
Sells to UK homeowners and businesses seeking solar energy systems, including residential customers and commercial organisations needing tailored installations and ongoing solar panel maintenance.
Financial Health
StrongStrong · Growing · 0% CAGR over 1y
Location
Financial sub-scores
Computed from 5 filingsProvides design, supply and installation of solar photovoltaic systems for homes and businesses, including battery storage, EV charging points, and upgrades to existing solar PV installations, along…
Serves UK homeowners and businesses, including domestic property owners and commercial premises, seeking solar PV, battery storage and EV charging solutions.
Financial Health
StrongStrong · Growing, Hiring · 11% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsProvides electrical contracting and renewable energy services including solar PV installation and maintenance, air and ground source heat pumps, EV charging points, heating and cooling systems,…
Serves homeowners, local businesses, industrial clients and social housing providers across Devon and Cornwall with property energy and electrical needs.
Financial Health
StrongStrong · Growing, Hiring · 8% CAGR over 4y
Location
Financial sub-scores
Computed from 3 filingsInstalls renewable energy and electrical systems for residential and commercial properties, including solar PV panels, battery storage, EV charge points and air source heat pumps. Also provides…
Serves homeowners, landlords and commercial property/facilities managers across the UK, including warehouses and businesses needing electrical, CCTV, building maintenance and renewable energy support.
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsProvides installation and maintenance of heating, renewable energy and energy efficiency systems, including solar PV, heat pumps, boilers, EV chargers and insulation. Works with homeowners,…
Serves a mix of B2C, B2B and public sector customers, including homeowners using government energy-efficiency grants, building contractors, and local authorities in need of domestic property upgrades.
Financial Health
StrongStrong · Growing, Hiring · 31% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDesigns, installs and services renewable energy systems including air source heat pumps, solar photovoltaic panels and battery storage for residential and commercial properties. Also supports DNO…
Serves homeowners, commercial property owners and new-build projects seeking renewable energy systems, mainly across East Cheshire, Greater Manchester and the Peak District.
Financial Health
StrongStrong · Growing, Hiring · 46% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsSupplies and installs renewable energy and energy efficiency systems, including solar PV panels, battery storage, air source heat pumps, air conditioning, EV charging points and LED lighting, for…
Serves homeowners, businesses, farms and public sector organisations looking to reduce energy costs and adopt renewable energy, with specific pages for residential, commercial and public sector…
Financial Health
StrongStrong · Growing, Hiring · 71% CAGR over 4y
Location
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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. PV installation 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 PV installation 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
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