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B2B Using Umbraco in the UK: 66 Active Firms (2026)
B2B organisations running enterprise content management systems in the UK sell products or services to other businesses through managed websites.
For business-to-business adopters, this CMS tends to sit behind managed corporate sites rather than high-volume consumer storefronts. The system’s main job is to let marketing, sales and service teams publish product information, thought leadership, support pages and sector-specific proof points without handing every change to developers. Adoption usually signals a firm with recurring web governance needs: budget for an external agency or internal digital owner, a controlled content workflow, and enough inbound or account-based marketing activity to justify a maintained platform. The buying centre is typically marketing or commercial leadership, with technology and compliance teams involved where forms, cookies, portals or customer communications touch personal data.
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UK adoption is narrow: 66 actively trading organisations in this business-to-business cohort run this CMS. Reported employment totals 1,613 people, which gives the group more substance than a purely micro-company list but still points to selective adoption. Within the sector’s detected CMS mix it ranks ninth, with a 0.1% share across 84,145 business-to-business websites. Registered offices skew towards London at 18.2% of the cohort, followed by the South East at 15.2%, the South West and North West at 13.6% each, and the East of England at 12.1%.
No single licensed industry governs these adopters; obligations follow the underlying activity, whether financial services, telecoms, data processing or professional services. For marketing-led websites, PECR covers direct marketing by live or automated calls, electronic mail and fax. The ICO says the electronic-mail rule does not apply to corporate subscribers, so emails or texts to corporate bodies do not need PECR consent, though senders must identify themselves and offer a valid opt-out route. UK GDPR still applies where personal data is processed, including business-contact data. Live marketing calls also require screening against CTPS and TPS, and objectors must not be called.
Adoption appears likely to remain selective rather than broad-based. Business-to-business firms with agency relationships, controlled publishing workflows and compliance oversight are better placed to keep a managed CMS in service; smaller firms may drift towards packaged site builders when budgets tighten or internal ownership is thin. Procurement pressure is likely to favour stacks that integrate consent management, analytics governance and CRM hand-off without creating extra administration. Agency consolidation may also shape the cohort, as fewer implementation partners can steer clients towards platform bundles they already maintain.
66
Active firms
2026
0.1%
Of detected CMS share
UK B2B
6
Median headcount
Filed accounts
159
Verified contacts
Across this cohort
Key facts
About 7% of the trading cohort reports turnover above £5M (5 of 66 firms) — the rest sits below that revenue band.
3% of the cohort was incorporated since 2022 (2 firms), so a sizeable share is in its first few filing cycles.
Among 84,145 B2B organisations with a detectable CMS, this CMS accounts for 0.1% (66); the largest alternative accounts for 70.3% (59,126).
Registered-office concentration is highest in London at 18.2% (12), followed by the South East at 15.2% (10), with the South West and North West each at 13.6% (9).
The web stack looks measurement-heavy: 54.5% (36) also run a bot-screening tool, 53.0% (35) run tag management and 37.9% (25) run analytics.
Sector tags overlap, but IT services and managed services are the largest segment at 34.8% (23), ahead of marketing agencies at 22.7% (15).
ICO guidance puts B2B calls, electronic mail and fax within PECR, while UK GDPR still applies where business-contact data is processed.
CMS market share among UK B2B
Share of the 84,145 UK B2B with a detectable system. As of June 2026.
What else do Umbraco-running B2B run?
Share of the 66 Umbraco-running UK companies where each technology was also detected. As of June 2026.
Where Umbraco B2B 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
£683.5k
Median UK turnover
7.6%
Above £5M turnover
2
Incorporated since 2022
159 verified decision-maker contacts
across these 66 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK B2B using Umbraco
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.
Ultra I&C
Develops mission software, tactical communications systems and encryption technologies for defence and security operations. Products include command‑and‑control platforms, military radios, satellite…
Serves defence forces, allied militaries and government security agencies worldwide, including commanders, operators and defence procurement teams across land, sea and air domains.
Location
Clerkswell Limited
Financial sub-scores
Computed from 4 filingsProvides digital agency services including design and development of websites, e‑commerce platforms, intranets and enterprise systems. Offers CMS implementation (e.g., Umbraco, Sitecore), UX/UI…
Serves enterprise organisations and digital teams in pharmaceutical, membership, automotive, charity/non-profit, legal, finance and industrial sectors, with clients in the UK, Europe, USA and Middle…
Financial Health
DistressedDistressed · -3% CAGR over 3y
Location
3 Chillies Limited
Financial sub-scores
Computed from 5 filingsDesigns and develops websites and digital platforms using CMS and .NET technologies. Provides bespoke business software development, website upgrades, integrations, managed hosting on Microsoft…
Serves UK organisations, primarily in-house digital, marketing and IT teams needing a technical partner for enterprise websites, CMS/DXP platforms and bespoke business software.
Financial Health
HealthyHealthy · Growing, Hiring · 6% CAGR over 4y
Location
Grow Create Limited
Financial sub-scores
Computed from 4 filingsProvides website development, UX design and cloud services, specialising in Umbraco and Optimizely platforms and Microsoft Azure. Offers platform modernisation, systems integration, AI integrations,…
Serves enterprise and tech-focused organisations, especially in regulated industries, that rely on Azure, Umbraco, Optimizely or other digital platforms and need secure, high-availability web…
Financial Health
HealthyHealthy · Hiring · 8% CAGR over 3y
Location
IRClass
Provides classification, inspection, survey and certification services for ships, offshore structures and industrial assets. Develops technical rules, conducts statutory and safety audits, offers ISO…
Serves shipowners, shipbuilders, ports and terminal operators, offshore energy stakeholders, defence and paramilitary bodies, and industrial, infrastructure and manufacturing organisations.
Location
CE Diagnostics Ltd.
Financial sub-scores
Computed from 5 filingsDevelops and manufactures in vitro diagnostic test kits, reagents and laboratory instrumentation for clinical chemistry, immunoassay, haematology and serology. Supplies rapid tests, quality control…
Sells B2B to global diagnostic distributors and healthcare laboratories, including hospitals, medical centres, clinics, blood banks and research institutions across immunology, haematology and…
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
THE MEDBOARD COMPANY LIMITED
Financial sub-scores
Computed from 3 filingsProvides a software platform and databases for medical device, digital health and pharmaceutical organisations to access regulatory, clinical research, market and post‑market surveillance data, and…
Serves regulatory, clinical, market, PMS and vigilance teams at MedTech, digital health, pharmaceutical and life sciences organisations, from startups to large enterprises.
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
I3 DIGITAL LTD
Financial sub-scores
Computed from 5 filingsProvides web design and user experience design, web application development, enterprise CMS and e‑commerce implementation, cloud hosting, and technical support. Also offers SEO services and…
Serves businesses and organisations with complex digital estates, especially enterprise and mid-market clients using CMS, DXP and eCommerce platforms such as Kentico, Sitecore, EpiServer and Umbraco.
Financial Health
StableStable · -19% CAGR over 4y
Location
PROFESSIONAL DATA MANAGEMENT SERVICES (UK) LIMITED
Financial sub-scores
Computed from 5 filingsProvides software engineering and digital services including custom software development, website design and development, legacy system modernisation, data and AI solutions, digital consultancy,…
Serves public and private sector organisations, including central and local government, NHS and healthcare bodies, engineering and manufacturing firms, maritime and regulatory registries, transport…
Financial Health
HealthyHealthy · Hiring · 9% CAGR over 4y
Location
Futuresource Consulting
Financial sub-scores
Computed from 5 filingsProvides market research, data analytics, forecasting and consulting services. Produces industry reports, consumer insights and market outlooks for sectors including consumer electronics, media…
Serves B2B clients, including global technology, media and entertainment brands, across audio, education, collaboration, consumer electronics, displays, storage media and semiconductor markets.
Financial Health
DistressedDistressed · -10% CAGR over 4y
Location
Financial sub-scores
Computed from 4 filingsDevelops website crawling software used for technical SEO audits. The desktop and cloud tools scan websites, analyse pages, links, indexability and structured data, and generate reports and…
Sells to SEO professionals, including freelancers, in-house teams, digital agencies and enterprise SEO departments. Also targets ecommerce brands, news publishers and consultants needing website…
Financial Health
WeakWeak · 0% CAGR over 3y
Location
SMARTLIST LTD
Financial sub-scores
Computed from 5 filingsDevelops bespoke software applications and digital platforms for organisations. Provides system integration, .NET software engineering, CMS development including Umbraco, technical consultancy,…
Serves B2B and public sector buyers, including higher education institutions, councils, charities, healthcare organisations, property firms and mid-sized manufacturers needing digital platforms, CMS…
Financial Health
StrongStrong · Growing, Hiring · 54% CAGR over 4y
Location
MORIYAMA LIMITED
Financial sub-scores
Computed from 5 filingsProvides computer consultancy focused on Umbraco content management systems and Microsoft Azure. Develops .NET websites and applications, performs Umbraco upgrades and data migrations, and offers…
Serves B2B organisations, enterprise brands and digital teams using Umbraco, .NET and Azure, particularly those managing content-heavy websites, applications and ongoing platform support.
Financial Health
StableStable · Hiring · 15% CAGR over 4y
Location
Appius International Limited
Financial sub-scores
Computed from 5 filingsProvides web development and digital agency services including UX design, digital strategy, marketing automation, search and social marketing, and conversion rate optimisation. Builds and manages…
Serves UK businesses and enterprise organisations needing digital experience support, with clients in travel and events, financial services, hospitality, and insurance, including teams managing…
Financial Health
StrongStrong · Hiring · 17% CAGR over 4y
Location
FORESIGHT UK SOLAR DEVELOPMENT HOLDCO LIMITED
Financial sub-scores
Computed from 2 filingsProvides investment management services across private and public markets. Manages funds and investment trusts focused on real assets, renewable energy and infrastructure, natural capital, private…
Serves institutional and private investors, financial advisers and shareholders seeking private market, public market and tax-efficient investment strategies.
Financial Health
StrongStrong
Location
SHOUT DIGITAL LIMITED
Financial sub-scores
Computed from 3 filingsDesigns and develops digital products and platforms for organisations, including websites, mobile apps and cloud-based systems. Provides services in UX research and design, software engineering,…
Serves B2B and public-sector organisations with complex digital needs, including finance, utilities, travel and leisure, education, regulators, airports and technology-led service providers.
Financial Health
StableStable · 1% CAGR over 2y
Location
Ethisys Ltd
Financial sub-scores
Computed from 5 filingsProvides digital consultancy and software development services including artificial intelligence solutions, composable DXP implementation, Microsoft platform development, design, and technology…
Serves mid-market and enterprise organisations with complex digital needs, including legal, software, technology, healthcare, PR and public sector buyers seeking consultancy, software, AI and…
Financial Health
StableStable · Hiring · 33% CAGR over 4y
Location
Dept
Financial sub-scores
Computed from 5 filingsProvides digital marketing and technology services for brands, including AI transformation, brand and media campaigns, ecommerce and customer experience design, and data and platform development.…
Serves enterprise and global brand teams across banking and financial services, consumer packaged goods, health, retail and commerce, and tech, media and telecom sectors.
Financial Health
StrongStrong · Hiring · 7% CAGR over 5y
Location
RED ENGINEERING LIMITED
Financial sub-scores
Computed from 5 filingsProvides engineering design and consultancy for data centre and digital infrastructure projects. Services include advisory and due diligence, MEP and ICT design, sustainability and energy…
Serves B2B clients developing, operating or investing in data centres and digital infrastructure, including hyperscale, colocation, enterprise, mission-critical, edge, modular and AI/HPC facilities…
Financial Health
HealthyHealthy · -66% CAGR over 4y
Location
FUTURESOURCE CONSULTING LIMITED
Financial sub-scores
Computed from 4 filingsProvides market research, data analytics and consulting services for technology, media and education sectors. Produces industry reports, market forecasts and consumer insights, and advises companies…
Serves global B2B clients in technology, media and entertainment, including brands and industry organisations across consumer electronics, audio, education technology, collaboration tools, displays,…
Financial Health
HealthyHealthy · Profitable, Hiring · 4% CAGR over 3y
Location
Energise Technology Solutions Limited
Financial sub-scores
Computed from 5 filingsProvides education technology consultancy, software development, and digital learning platforms for schools, government agencies, and awarding bodies. Develops learning management, governance and…
Serves B2B and public-sector customers in education, including government agencies, local authorities, awarding bodies, schools, colleges and universities, with buyers in policy, leadership, delivery…
Financial Health
HealthyHealthy · -6% CAGR over 3y
Location
Provides waste management, recycling and resource recovery services for commercial and industrial customers, including collection and processing of glass, metals, plastics, wood, oils and hazardous…
Serves businesses and public-sector organisations across the UK and Ireland, including construction, utilities, manufacturing, automotive, retail, hospitality, education, healthcare, transport, data…
Location
HUUMUN LTD
Financial sub-scores
Computed from 5 filingsProvides digital strategy, design and technology services for life sciences companies, including digital drug launch support, omnichannel engagement platforms, web design and development, data…
Serves global life sciences and high-science brands, including pharmaceutical teams managing drug launches, patient access, healthcare professional communications and multi-brand digital portfolios.
Financial Health
WeakWeak · -66% CAGR over 4y
Location
Ultra PCS
Designs and manufactures electronic and electromechanical systems for aerospace and defence platforms, including position sensing and control, electrical ice protection, motor and power control,…
Serves defence and aerospace organisations, including military aircraft and vehicle programmes, civil aviation customers, unmanned vehicle developers, and operators needing safety- or…
Location
Financial sub-scores
Computed from 4 filingsManufactures and supplies single‑use and reusable surgical instruments and medical devices for healthcare settings, including cautery tools, diathermy forceps, endoscopes, electrodes and surgical…
Serves healthcare organisations, operating theatres and surgical departments across urology, gynaecology, neurology, ophthalmology, ENT, orthopaedics and general surgery, as well as medical equipment…
Financial Health
StableStable
Location
Financial sub-scores
Computed from 4 filingsManufactures and supplies single‑use and reusable surgical instruments and medical devices for healthcare providers, including cautery tools, forceps, endoscopes, suction tubes and diathermy…
Sells B2B to healthcare providers, surgical departments and medical equipment manufacturers or suppliers, particularly in urology, gynaecology, neurology, ophthalmology and other operating theatre…
Financial Health
HealthyHealthy
Location
ETCH (UK) LIMITED
Financial sub-scores
Computed from 5 filingsProvides digital customer experience consultancy for established businesses, combining service design, data analysis and technology development to modernise legacy systems, improve customer…
Serves established UK businesses and mature organisations with legacy technology environments, particularly those facing slowing customer growth, weaker engagement, declining profitability, or…
Financial Health
StableStable · -71% CAGR over 4y
Location
360 SYSTEMS LIMITED
Financial sub-scores
Computed from 5 filingsDevelops web and mobile applications and SaaS business software. Provides systems for forms processing, timesheets, payslips, recruitment and performance management, and offers integration and…
Serves B2B organisations needing Microsoft-based web applications and SaaS systems, especially recruitment agencies, HR teams, operations teams, and larger organisations managing agency workers,…
Financial Health
StableStable · -71% CAGR over 4y
Location
Wattle Solutions Ltd
Financial sub-scores
Computed from 4 filingsProvides digital transformation services for membership organisations, charities and public sector bodies, including website design and development, CRM implementation using Microsoft Dynamics 365,…
Serves membership organisations, charities and public sector bodies, including professional bodies and trade associations with teams responsible for digital transformation, CRM, websites and member…
Financial Health
StrongStrong · Growing, Hiring · 5% CAGR over 3y
Location
Digital Wonderlab Limited
Financial sub-scores
Computed from 3 filingsProvides digital strategy, website design and development, and custom app and software development. Builds and manages CMS-based websites, including Umbraco, and develops digital tools that support…
Serves B2B organisations, charities and not-for-profits, from scaling start-ups to established brands, with emphasis on health and wellbeing, finance, environment and energy, education, and other…
Financial Health
StrongStrong · Hiring · 12% CAGR over 2y
Location
Dotcraft Limited
Financial sub-scores
Computed from 5 filingsDevelops and maintains websites and digital platforms using CMS systems such as Umbraco and Optimizely. Provides user experience design, ecommerce development, systems integration, digital strategy,…
Serves established brands and organisations in hospitality and events, retail/ecommerce, automotive, and education/charity, including venues, festivals, cultural institutions, hotel groups,…
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 4y
Location
Byte London Limited
Financial sub-scores
Computed from 5 filingsProvides digital marketing and technology services for brands, including AI transformation, data and technology consulting, customer experience design, e‑commerce development, media and brand…
Serves enterprise and global brand marketing, digital and technology teams, especially in banking, financial services, insurance, consumer packaged goods, health, retail and commerce, and tech, media…
Financial Health
StrongStrong · Hiring · 15% CAGR over 5y
Location
THOMPSON TARAZ MANAGERS LIMITED
Financial sub-scores
Computed from 3 filingsProvides investment fund services including AIFM management, fund administration, depositary, custody and nominee services, and SPV administration. Works with real estate, private equity, venture…
Serves investment managers, fund operators and asset managers running real estate, private equity/VC, debt and infrastructure funds, including retail and institutional fund platforms.
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 4 filingsDevelops customer communication software for travel brands, including a TravelComms platform and mobile app that integrate with booking systems to deliver personalised messages, itineraries and…
Serves B2B travel brands, primarily luxury tour operators and cruise lines, including commercial and operations teams responsible for guest communications, bookings, customer engagement and traveller…
Financial Health
StrongStrong · Growing, Hiring · 4% CAGR over 3y
Location
Factory 73 Limited
Financial sub-scores
Computed from 3 filingsDesigns and develops custom websites, web applications and business systems. Specialises in Umbraco CMS and Microsoft .NET development, including UX design, third‑party integrations, data migrations,…
Sells to businesses and public sector organisations needing complex websites, CMS and bespoke applications, particularly enterprise clients and teams in public health, local government,…
Financial Health
StableStable · Hiring · 18% CAGR over 2y
Location
PROPEL TECH LTD
Financial sub-scores
Computed from 5 filingsProvides bespoke software development and consultancy, including AI, cloud and digital transformation services. Delivers application modernisation, software migration and testing, and provides…
Serves B2B organisations across business services, leisure and retail, logistics, manufacturing, property and utilities, typically teams responsible for operations, systems and digital transformation.
Financial Health
StableStable · -68% CAGR over 4y
Location
SPINBOX LTD
Financial sub-scores
Computed from 5 filingsDevelops bespoke websites, web applications and software using .NET frameworks. Provides CMS implementation for Umbraco and Sitefinity, system and API integrations, custom e‑commerce development,…
Serves B2B and public-sector organisations, especially membership bodies, education and training providers, hotels and hospitality companies, and enterprises with Sitefinity, Umbraco, Optimizely,…
Financial Health
WeakWeak · -3% CAGR over 4y
Location
Giant Software Limited
Financial sub-scores
Computed from 5 filingsDevelops custom business software for Windows, web and mobile platforms. Provides bespoke applications, websites and web systems, including solutions supporting tax reporting requirements such as…
Serves businesses needing bespoke Windows, web and mobile systems, including financial institutions and multinational groups with FATCA, CRS, CbCR and tax-rulings reporting obligations.
Financial Health
WeakWeak · 0% CAGR over 4y
Location
Dotcentric Limited
Financial sub-scores
Computed from 3 filingsProvides digital consultancy and development services including user research, experience design, website and e‑commerce development, digital experience platform implementation, and conversion rate…
Serves mid-sized and large organisations with customer-facing digital platforms, including sports bodies, ecommerce businesses, trade associations, charities and public-service organisations.
Financial Health
WeakWeak · -17% CAGR over 2y
Location
APO GROUP LIMITED
Financial sub-scores
Computed from 3 filingsProvides management and consultancy services for build‑to‑rent residential developments, including strategy, product design, leasing, operations, facilities and community management, and asset…
Serves property developers, asset owners and investors in the UK living sector, including Build-to-Rent, single-family rental, co-living and serviced apartment schemes.
Financial Health
StableStable · Hiring · 13% CAGR over 2y
Location
GMCG GROUP LIMITED
Financial sub-scores
Computed from 5 filingsProvides chartered accountancy and professional advisory services including audit, tax and VAT compliance, business advisory, forensic accounting investigations, corporate finance support, payroll…
Serves businesses, company directors, shareholders/PSCs and organisations seeking accountancy-related advice, with content particularly aimed at UK and Northern Ireland business clients.
Financial Health
StableStable · 1% CAGR over 5y
Location
FLOW TRADING LTD
Financial sub-scores
Computed from 5 filingsProvides electronic trading and market‑making services in global financial markets, specialising in exchange‑traded products and digital assets. Uses proprietary technology and risk management to…
Serves institutional financial market participants, including exchanges, trading platforms, brokers, asset managers and other counterparties across global ETP and digital asset markets.
Financial Health
WeakWeak · -10% CAGR over 4y
Location
Real Estate Management
Provides asset and property management services for commercial, residential, retail and mixed‑use real estate. Activities include leasing oversight, rent and service charge administration, marketing…
Serves property investors and owners of premium central London commercial, residential, retail and leisure assets, including mixed-use landmark developments requiring asset, property, development and…
Location
Arlico Ltd
Financial sub-scores
Computed from 5 filingsSupplies architectural lighting products for commercial and interior design applications, including interior, exterior and emergency luminaires, acoustic lighting, lighting controls and accessories.…
Sells to B2B lighting designers, architects, technical specifiers and commercial project teams working on offices, workspaces, hotels, restaurants and exterior or emergency lighting projects.
Financial Health
WeakWeak · 0% CAGR over 4y
Location
Provides corporate negotiation skills training and consultancy for businesses, including workshops, capability assessments and advisory support to improve deal-making, conflict resolution and…
Serves businesses of all sizes, from small companies to multinationals, across sectors and functions. Targets corporate teams and leaders involved in negotiations, including L&D, sales, HR and…
Location
HUDSON FREELANCE LIMITED
Financial sub-scores
Computed from 3 filingsProvides compliance and workforce management services for construction companies engaging freelance contractors, including CIS payroll processing, IR35 compliance support, right-to-work checks,…
Serves B2B construction companies engaging freelance workers, including housebuilders, property developers and other firms using subcontractors. Targets decision-makers responsible for payroll,…
Financial Health
WeakWeak
Location
Cold Banana Ltd
Financial sub-scores
Computed from 5 filingsDevelops .NET-based web and mobile platforms for organisations across sectors. Provides software development, website design, UX research, and digital product engineering, along with support and…
Serves businesses and public sector organisations of all sizes across eCommerce, finance, retail, media, technology, sport, tourism, hospitality and professional services.
Financial Health
HealthyHealthy · Hiring · 9% CAGR over 4y
Location
This Is Embrace Limited
Financial sub-scores
Computed from 5 filingsProvides brand strategy, creative design, and digital marketing services for B2B organisations. Develops brand identities, marketing campaigns, content, and websites, and delivers digital strategy,…
Serves B2B organisations and public-sector bodies, including global manufacturers, workplace catering providers and government or commissioner offices.
Financial Health
HealthyHealthy · -2% CAGR over 4y
Location
SMART IMPACT LIMITED
Financial sub-scores
Computed from 5 filingsProvides technology consulting and implementation services for membership and non‑profit organisations, specialising in Microsoft Dynamics 365 CRM systems, websites, and self‑service portals.…
Serves B2B/non-profit organisations including professional membership bodies, trade associations, institutes, regulatory bodies, trade unions, charities, fundraisers, education/training providers and…
Financial Health
StrongStrong · Growing, Hiring · 24% CAGR over 4y
Location
NEXER DIGITAL LTD
Financial sub-scores
Computed from 5 filingsProvides human‑centred research, UX design and software development services to create digital products, websites and online services. Works with public sector and commercial organisations to design,…
Serves public-sector bodies, healthcare and life sciences organisations, education departments, regulators, charities and large enterprises, with emphasis on teams responsible for digital services,…
Financial Health
StrongStrong · Hiring · 11% CAGR over 4y
Location
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How Umbraco 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. B2B 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 B2B 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.
Umbraco is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
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