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B2B Using Fastly in the UK: 292 Active Firms (2026)
B2B firms running edge CDN infrastructure sell products or services to other organisations, with UK websites built for speed and resilience.
Adoption tends to sit with revenue, digital product and platform teams rather than with general IT alone. For business-to-business suppliers, the edge layer supports fast page delivery, resilient application entry points and security controls around commercially important web journeys. The typical adopter is not necessarily a technology seller; the signal is a company with enough digital dependence to justify specialist infrastructure, a marketing operation that cares about performance, and an operations or engineering owner able to manage web delivery. Sales motions tend to be mid-market or enterprise-facing, with procurement scrutiny where customer portals, content hubs or application flows handle business-contact data.
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UK adoption is narrow: 292 trading companies run this edge CDN stack on public websites. Reported employment across headcount-publishing adopters totals 2,350 people. Among B2B websites with a CDN signal, the stack accounts for 0.9% across a 31,666-site sector denominator, placing it joint fourth among CDN options rather than the default choice. The regional pattern is London-weighted, with 33.9% of adopters registered there and 17.1% in the South East. The next visible clusters are the North West at 9.2%, East of England at 8.9% and South West at 5.8%.
Business-to-business adoption does not sit under a single UK licence. The relevant rules depend on the adopter’s activity, with financial services, telecoms, data processing and professional services carrying different compliance questions. The ICO position on PECR matters for the marketing teams that often own public-web performance: direct marketing by live or automated calls, electronic mail and fax is covered, but the electronic-mail rule does not apply to corporate subscribers. Senders still need to identify themselves and provide a valid opt-out route. UK GDPR continues to apply where personal data is processed, including business-contact data, and live marketing calls require screening against CTPS and TPS where objections or preference registrations apply.
Adoption appears selective rather than default, which suggests the stack is chosen where site performance, resilience or security controls matter enough to outweigh simpler bundled options. The next phase is likely to be shaped by migration pressure from legacy hosting, tighter procurement reviews and consolidation among web infrastructure suppliers. Lean specialist teams may prefer fewer operational dependencies, while firms with customer portals, application flows or content-heavy acquisition journeys tend to tolerate extra delivery complexity. For researchers, the useful signal is less enthusiasm for edge infrastructure in itself and more evidence that a company’s public website has become part of its operating model.
292
Active firms
2026
0.9%
Of detected CDN share
UK B2B
5
Median headcount
Filed accounts
701
Verified contacts
Across this cohort
Key facts
About 9% of the trading cohort reports turnover above £5M (27 of 292 firms) — the rest sits below that revenue band.
11% of the cohort was incorporated since 2022 (34 firms), so a sizeable share is in its first few filing cycles.
This CDN accounts for 0.9% (292) of detected CDN use within UK B2B, on a denominator of 31,666 companies with a detectable system.
Registered-office concentration is highest in London at 33.9% (99), followed by the South East at 17.1% (50) and the North West at 9.2% (27).
The most common co-detected technology appears on 52.7% (154) of the cohort, while tag-management tooling appears on 40.8% (119).
SaaS is the largest overlapping sector tag among B2B firms running this CDN at 19.5% (57), ahead of Advanced Manufacturing at 9.2% (27).
The ICO says PECR electronic-mail consent rules do not apply to corporate subscribers, but senders must identify themselves and provide a valid opt-out address.
CDN market share among UK B2B
Share of the 31,666 UK B2B with a detectable system. As of June 2026.
What else do Fastly-running B2B run?
Share of the 292 Fastly-running UK companies where each technology was also detected. As of June 2026.
Where Fastly 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.
5
Median headcount
£500k
Median UK turnover
9.2%
Above £5M turnover
34
Incorporated since 2022
701 verified decision-maker contacts
across these 292 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK B2B using Fastly
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 3 filingsProvides a cloud-based WebOps platform for developing, hosting, and managing websites built with WordPress, Drupal, and Next.js. Offers managed hosting, deployment workflows, performance monitoring,…
Serves enterprises, educational institutions, government bodies, nonprofits, media, technology and consumer brand organizations, targeting developers, marketers and IT leaders managing WordPress,…
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsProvides a digital platform for client and staff onboarding compliance, including identity verification, anti‑money laundering checks, right‑to‑work and right‑to‑rent checks, DBS processing,…
Serves B2B compliance, HR and operations teams in legal, financial services, property, healthcare and recruitment organisations that need high-volume client or staff onboarding checks.
Financial Health
StrongStrong · Growing, Hiring · 29% CAGR over 4y
Location
RAPYD PAYMENTS LIMITED
Financial sub-scores
Computed from 5 filingsProvides online payment processing and fintech infrastructure for businesses, including card acquiring, hosted checkout, payment links, POS payments, global payouts, card issuing, and multi‑currency…
Serves businesses in eCommerce, marketplaces, iGaming and online gaming, online trading, creator economy, online travel, influencer marketing and B2B payments, as well as developers and payment…
Financial Health
StableStable · -21% CAGR over 4y
Location
Financial sub-scores
Computed from 3 filingsDevelops software supply chain management tools for DevOps and security teams, including artifact repositories, package curation, vulnerability and code scanning, release distribution, ML model…
Serves DevOps, DevSecOps, MLOps and security teams at software-driven organisations, from small teams to enterprises, including financial services, public sector, technology, healthcare, gaming,…
Financial Health
StrongStrong · Hiring · 37% CAGR over 2y
Location
EVOLUTION GAMING LIMITED
Financial sub-scores
Computed from 2 filingsDevelops and supplies online casino gaming software for gambling operators, including live dealer table games, game shows and slots. Provides streaming studio systems, game development and platform…
Sells to licensed online casino and gambling operators seeking live casino, game show, slot and first-person game content, with some offerings for land-based casino venues.
Financial Health
HealthyHealthy · Hiring · 25% CAGR over 1y
Location
Financial sub-scores
Computed from 4 filingsProvides fintech payment platforms enabling businesses to issue payouts to staff, suppliers and customers, manage expenses and allocate funds. Offers API‑integrated payment processing, billing flows,…
Serves B2B clients needing corporate payouts, expense or mobility payment capabilities, including merchants, employers, reseller platforms, auction houses, pawnbrokers, travel and construction firms,…
Financial Health
StableStable · -17% CAGR over 3y
Location
VERCARA (UK) LIMITED
Financial sub-scores
Computed from 5 filingsProvides managed DNS infrastructure and cloud‑based security services, including authoritative DNS, DDoS mitigation, web application firewall, bot management and API protection, helping organisations…
Serves businesses of all sizes with online operations, particularly eCommerce, financial services, healthcare, gaming and gambling, registry/registrar, telecoms, and travel organisations.
Financial Health
StableStable · -4% CAGR over 5y
Location
Financial sub-scores
Computed from 5 filingsProvides financial technology–based working capital financing for businesses, including invoice factoring, reverse factoring, supplier finance, dynamic discounting, and short‑term working capital…
Serves SMEs and larger businesses needing working capital finance, including companies managing customer invoices, supplier payments, public administration debtors, and supply chain financing…
Financial Health
HealthyHealthy
Location
Financial sub-scores
Computed from 5 filingsProvides an online financial platform for businesses to manage international payments, foreign exchange and multi‑currency accounts. Offers corporate cards, expense and spend management, accounts…
Serves SMEs, accountants and their business clients with cross-border financial operations needs, plus individuals making personal international money transfers. Targets organisations paying…
Financial Health
WeakWeak · Hiring · 4% CAGR over 4y
Location
Supercede Technology Ltd
Financial sub-scores
Computed from 5 filingsDevelops a software platform for the reinsurance market that manages programme data, supports broker–cedent collaboration, and provides analytics and AI-assisted tools for pricing, placement…
Serves B2B customers in the insurance sector, primarily reinsurance cedents, brokers, and enterprise reinsurance teams involved in programme placement, client engagement, and market deal coordination…
Financial Health
HealthyHealthy · Hiring · 26% CAGR over 4y
Location
Financial sub-scores
Computed from 3 filingsProvides a crowdsourced cybersecurity platform that connects organisations with security researchers to identify software and infrastructure vulnerabilities. Offers bug bounty programmes, penetration…
Serves security buyers and teams at enterprises and public-sector organisations, especially in financial services, healthcare, retail, automotive, technology and security companies.
Financial Health
StrongStrong · Hiring · 39% CAGR over 2y
Location
Financial sub-scores
Computed from 4 filingsDevelops and provides software for security information and event management (SIEM), log collection and analysis, and API security. Offers open-source and enterprise platforms that centralise log…
Serves B2B security and IT operations teams, including SOC analysts and leaders, at organisations needing SIEM, log management, API security, and flexible cloud or on-prem deployment.
Financial Health
StrongStrong · Hiring · 13% CAGR over 3y
Location
TWOTHREEBIRD HOLDINGS LIMITED
Financial sub-scores
Computed from 5 filingsProvides insurance infrastructure and services for brands and insurers, including licensing, regulatory operations, claims management, and API-based software. Enables partners to develop, launch, and…
Serves B2B insurance carriers, underwriters, consumer brands and affinity partners seeking specialty insurance distribution across mobility, travel, devices, retail, booking and registration channels.
Financial Health
StrongStrong
Location
Capitalise Business Support Limited
Financial sub-scores
Computed from 2 filingsProvides an online platform for small businesses and accountants to access business credit scores and reports, perform company credit checks, monitor financial risk, and apply for business loans…
Sells to UK limited companies, especially small businesses, and to accountants/advisers supporting clients with business finance, credit health and cash-flow risk decisions.
Financial Health
StableStable · Profitable · 5% CAGR over 1y
Location
Financial sub-scores
Computed from 3 filingsProvides a digital platform for employment and income verification. Uses integrations with HMRC, payroll systems, Open Banking and other data sources to deliver verified work history and earnings…
Serves B2B customers that need employment and income checks, including background screening providers, recruiters, employers, tenant referencing providers and financial services firms.
Financial Health
StableStable · Hiring · 47% CAGR over 2y
Location
Modo Energy Limited
Financial sub-scores
Computed from 5 filingsProvides market data, analytics, and research on energy storage and power markets. Offers a platform with revenue benchmarks, forecasts, and valuation tools for battery and solar assets, alongside…
Serves B2B energy market participants, including investors, developers, asset managers, structured finance teams, and traders involved in battery storage, solar, renewables, co-location, and data…
Financial Health
StrongStrong · Growing, Hiring · 75% CAGR over 4y
Location
Financial sub-scores
Computed from 2 filingsProvides cloud-based data security and backup software for enterprises, including data protection, ransomware recovery, threat monitoring, and data management across cloud platforms, SaaS…
Serves enterprise IT and security teams across healthcare, financial services, government, education, critical infrastructure and legal sectors, including organizations with hybrid cloud, SaaS and…
Financial Health
StrongStrong · Hiring · 34% CAGR over 1y
Location
Financial sub-scores
Computed from 5 filingsProvides an online learning platform offering browser-based coding labs, virtual development environments, and auto‑graded assessments for teaching AI, data science, cybersecurity, and software…
Sells to B2B and education buyers delivering technical training, including enterprises upskilling workforces, teams training data, AI, cybersecurity and software skills, plus colleges, universities,…
Financial Health
HealthyHealthy · Hiring · 19% CAGR over 4y
Location
PEPPERMINT TECHNOLOGY LIMITED
Financial sub-scores
Computed from 5 filingsDevelops cloud-based software for law firms, including CRM, matter and case management, and client engagement tools built on Microsoft 365. Provides implementation and support services to help legal…
Targets large law firms, including internal marketing, business development, lawyer and legal operations teams, with buyers responsible for client engagement and matter management systems.
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 4y
Location
Adaptive Web Limited
Financial sub-scores
Computed from 5 filingsProvides Drupal website services including development, support and maintenance, managed hosting, AI integration, performance optimisation and cybersecurity. Builds and enhances Drupal sites,…
Serves organisations that run Drupal websites, including charities/non-profits, NHS and public-sector bodies, event/media businesses and commercial firms.
Financial Health
HealthyHealthy · Hiring · 4% CAGR over 4y
Location
HACKERONE UK LIMITED
Financial sub-scores
Computed from 3 filingsProvides a cybersecurity platform that connects organisations with a global community of security researchers to identify vulnerabilities. Offers bug bounty programmes, vulnerability disclosure…
Serves security and engineering teams at enterprises and public sector organisations, including financial services, healthcare, retail/e-commerce, automotive, crypto/blockchain, hospitality, US…
Financial Health
StrongStrong · Hiring · 26% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsProvides online contractor and supplier information management platforms, including ISNetworld, used by hiring companies to collect and review health, safety, sustainability, insurance, training and…
Serves enterprise hiring clients managing contractor and supplier risk, plus contractors and suppliers seeking qualification with those clients, across sectors with HSE, sustainability, insurance,…
Financial Health
StrongStrong · Hiring · 6% CAGR over 5y
Location
Financial sub-scores
Computed from 5 filingsProvides a cloud platform for managing and analysing engineering test data. Ingests measurements and configuration metadata from test rigs, simulations, and labs, enabling real‑time analysis,…
Serves B2B R&D and engineering teams in manufacturing and energy, including heads of R&D, engineering leads, software/data engineers, systems engineers and test engineers working with lab, field and…
Financial Health
StrongStrong · Hiring · 12% CAGR over 4y
Location
PRESIDIO CONSULTING LIMITED
Financial sub-scores
Computed from 5 filingsProvides IT consulting, integration and managed services focused on cloud computing, cybersecurity, networking and collaboration platforms. Designs, implements and supports digital infrastructure, AI…
Serves businesses and public sector organisations of all sizes, including healthcare, financial services, retail, manufacturing, media, gaming, legal, energy, utilities and federal customers.
Financial Health
HealthyHealthy · Hiring · 26% CAGR over 4y
Location
Financial sub-scores
Computed from 3 filingsDevelops digital technology platforms and software for humanitarian and international development programmes, enabling organisations to manage aid distribution, beneficiary registration, payments,…
Serves humanitarian and international development organisations, including NGOs, aid agencies and programme teams involved in aid delivery, accountability and transparency.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
Onix
Financial sub-scores
Computed from 5 filingsProvides data migration, cloud modernisation and analytics services focused on Google Cloud, including AI/ML solutions, managed cloud services, security and compliance, and customer engagement…
Serves large enterprises and public sector organisations, including Fortune 100 customers, across healthcare and life sciences, retail and CPG, manufacturing, financial services and insurance, and…
Financial Health
StrongStrong
Location
Broadbean Limited
Financial sub-scores
Computed from 5 filingsProvides recruitment software that distributes job adverts to thousands of job boards, social media channels and search engines, and offers tools for candidate sourcing, résumé database search,…
Sells to B2B recruitment teams, including direct employers, in-house talent acquisition teams, and agency recruiters seeking to advertise roles, manage applicants, and optimise job board spend.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 5y
Location
FORSTA (EUROPE) LTD
Financial sub-scores
Computed from 3 filingsDevelops experience management and market research software platforms including survey tools, online panel management, voice‑of‑customer and employee feedback systems, qualitative research…
Serves B2B enterprises, market research agencies and insight teams, especially CX, EX, market research and marketing leaders in sectors such as retail, insurance, travel, healthcare and consumer…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
ILLUMA TECHNOLOGY LTD
Financial sub-scores
Computed from 5 filingsDevelops contextual AI technology for digital advertising. Provides tools that classify and analyse online content and bidstream signals to enable cookie‑free ad targeting, campaign optimisation, and…
Serves enterprise brands, media agencies, broadcasters, publishers, online platforms and adtech partners involved in digital, programmatic and CTV advertising.
Financial Health
HealthyHealthy · -54% CAGR over 5y
Location
Financial sub-scores
Computed from 3 filingsDevelops browser-based cybersecurity software that monitors user browser sessions to detect and respond to threats such as phishing, malicious extensions, credential theft, and account takeover,…
Sells to B2B security leaders, CISOs, security operations and IT teams at organisations whose employees use browsers, SaaS and cloud accounts, including companies exposed to phishing, account…
Financial Health
StableStable · Hiring · 143% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsDevelops software and APIs for document conversion and processing, including services to convert, merge, watermark, secure and OCR files such as PDFs via cloud-based REST services and on‑premise web…
Sells to businesses and software development teams, especially those building on REST APIs, on-premises web services, Microsoft Power Automate, Power Apps and Azure Logic Apps.
Financial Health
WeakWeak
Location
Financial sub-scores
Computed from 5 filingsProvides digital marketing and media services including paid media management, SEO and local search optimisation, local listing and reputation management, analytics and data science, creative…
Sells to businesses, particularly enterprise and multi-location brands seeking full-funnel digital marketing. Targets marketing teams needing local search, media, analytics, SEO, web and…
Financial Health
StableStable · Hiring · 7% CAGR over 4y
Location
Provides cybersecurity incident response and breach recovery services, specialising in ransomware attacks. Offers system restoration, infrastructure assessments, cyber resilience planning, asset…
Serves mid-market and enterprise organisations across industries, including Fortune 500 companies and law firms, targeting IT, security, legal and risk teams responsible for cyber incident readiness.
Financial Health
Insufficient historyInsufficient history
Location
Financial sub-scores
Computed from 5 filingsDevelops and provides cloud-based recruiting software for employers, including applicant tracking systems, candidate sourcing and engagement tools, career site management, text recruiting, onboarding…
Serves enterprise employers and HR teams, including CHROs, talent acquisition, HR operations and IT leaders, across sectors such as retail, healthcare, manufacturing, finance and hospitality.
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
BUILDING BETTER RELATIONSHIPS LTD
Financial sub-scores
Computed from 5 filingsProvides supply chain management software and services that help manufacturers collect supplier data, manage product compliance, track materials and sourcing, and report on ESG, trade, and regulatory…
Serves B2B complex manufacturers, including medical device, industrial equipment, aerospace and defense, electronics, and automotive companies with supply chain compliance, ESG, and trade compliance…
Financial Health
HealthyHealthy · -74% CAGR over 3y
Location
Financial sub-scores
Computed from 5 filingsDevelops and supplies hardware security modules (HSMs), encryption and key management software, and payment security systems. Provides solutions for data protection, secure payment processing, public…
Sells to large enterprises, banks, payment processors, telecom operators and government or public-safety agencies, including regulated industries and critical infrastructure organisations with…
Financial Health
StableStable · -57% CAGR over 5y
Location
Eventrac Ltd
Financial sub-scores
Computed from 5 filingsProvides online software for sports event organisers to manage event registration, promotion and participant communications. Platform includes custom registration forms, marketing tools, fundraising…
Serves sports event and race organisers of all sizes across the UK and Ireland, including organisations running races and mass-participation events for athletes, supporters and charity fundraisers.
Financial Health
StrongStrong
Location
SPS NETWORK LTD
Financial sub-scores
Computed from 5 filingsProvides cloud-based supply chain network software for retail businesses, including electronic data interchange (EDI), order management, product data synchronisation, analytics, supplier onboarding,…
Serves B2B retail supply chain organisations, including retailers, grocery businesses, distributors, brands, manufacturers, e-commerce marketplaces, 3PLs and suppliers needing trading partner…
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
Location
Perforce Software UK Limited
Financial sub-scores
Computed from 5 filingsProvides sales and marketing support for a group developing enterprise DevOps software. Activities promote tools for version control, test data management, application testing, infrastructure…
Sells to enterprise software development and DevOps teams building mission-critical applications, including organisations in financial services, software and IT, media, gaming, semiconductor,…
Financial Health
StrongStrong · Hiring · 9% CAGR over 4y
Location
BigID UK Ltd
Financial sub-scores
Computed from 4 filingsProvides sales and marketing services for an enterprise data security and privacy platform that discovers, classifies, and manages sensitive data across cloud, on‑premise, and AI environments,…
Sells to large enterprises and Fortune 500 organisations, targeting security, privacy, compliance, data governance and AI governance teams managing complex cloud, SaaS, on-prem and AI data…
Financial Health
StrongStrong · Growing, Hiring · 28% CAGR over 3y
Location
Financial sub-scores
Computed from 2 filingsDevelops IT service management (ITSM) and IT asset management (ITAM) software integrated with Microsoft Dynamics 365 and the Microsoft Power Platform. Provides ServiceTeam applications and…
Serves IT departments and service providers in commercial, government and education organisations, including managed service providers and Microsoft partners, with customers ranging from local…
Financial Health
StrongStrong · Hiring · 100% CAGR over 1y
Location
Parasoft UK Limited
Financial sub-scores
Computed from 5 filingsDevelops automated software testing and quality assurance tools covering the software development lifecycle, including static code analysis, unit testing, API and UI test automation, service…
Sells to software development and QA teams in regulated embedded and enterprise organisations, including automotive, aviation, medical devices, defense, rail, finance, healthcare, public sector,…
Financial Health
StrongStrong · Hiring · 8% CAGR over 5y
Location
Financial sub-scores
Computed from 3 filingsProvides a software-as-a-service platform for retailers to manage dropshipping and curated marketplace operations. Software connects retailers with suppliers, synchronises inventory, manages product…
Serves B2B retailers and ecommerce organisations, particularly supply chain, category, dropship and online trading teams managing large product ranges and supplier networks.
Financial Health
StrongStrong · Hiring · 33% CAGR over 2y
Location
Qcode Software Limited
Financial sub-scores
Computed from 5 filingsDevelops e‑commerce websites and ERP systems for wholesalers, supporting online ordering, stock management and transaction processing. Also provides digital marketing services and pay‑per‑click…
Serves B2B wholesale businesses that sell online, particularly firms needing ecommerce websites, ERP systems and managed digital marketing to support high stock volumes and online transactions.
Financial Health
StableStable · -7% CAGR over 4y
Location
Kefas Solutions Ltd
Provides software development services building server-side applications, enterprise systems, and web backends. Develops high‑throughput, low‑latency systems, trading and market data platforms,…
Serves B2B clients, particularly start-ups and technology-led firms in financial services, trading, investment analytics, engineering and construction, that need specialist software engineering…
Financial Health
Insufficient historyInsufficient history
Location
Acuative Limited
Financial sub-scores
Computed from 4 filingsProvides managed network and IT infrastructure services including network design, deployment and monitoring, SD‑WAN and connectivity solutions, cybersecurity operations, cloud migration, field…
Serves large businesses and public-sector organisations with distributed IT estates, including retail, fast food, gas and convenience, grocery, pharmacy, banking, healthcare, manufacturing, defence…
Financial Health
StableStable · -13% CAGR over 3y
Location
Medevolve Limited
Financial sub-scores
Computed from 3 filingsProvides revenue cycle management software and services for healthcare organisations, including analytics, financial clearance automation, medical billing workflow tools, and practice management…
Serves B2B healthcare organizations, including medical practices, ambulatory providers and central billing teams, targeting CFOs, revenue cycle managers and operations leaders responsible for claims,…
Financial Health
HealthyHealthy · Hiring · 32% CAGR over 2y
Location
TRINITY LIFE SCIENCES UK LIMITED
Financial sub-scores
Computed from 5 filingsProvides consulting, analytics, and technology solutions for pharmaceutical, biotech, and medtech companies. Services include commercial strategy, market research, pricing and market access, launch…
Serves B2B life sciences organizations, including pharma, biotech and MedTech companies, targeting C-suite, brand, marketing, sales, medical affairs, market access, analytics, commercial operations…
Financial Health
StableStable · Hiring · 26% CAGR over 4y
Location
FP&A TRENDS LTD
Financial sub-scores
Computed from 5 filingsProvides education, research content, webinars and events focused on financial planning and analysis (FP&A). Operates an online platform publishing articles and resources, and runs professional…
Serves B2B finance audiences globally, including FP&A professionals, CFOs, finance directors and senior finance leaders in organisations looking to engage with FP&A insight, events and peer…
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
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How Fastly 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.
Fastly is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
UK B2B by CDN
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Frequently asked questions
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