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B2B Using PostHog in the UK: 180 Active Firms (2026)
B2B companies using product-analytics tooling sell to other organisations while measuring website journeys and conversion behaviour in the UK.
Product and growth teams use this stack to connect marketing visits, sign-up flows, feature usage and retention prompts, rather than treating the website as a brochure. In a B2B setting, adoption tends to signal a measurable direct channel: paid or organic acquisition, onboarding paths, trial conversion or usage-led account expansion. The median adopter has headcount of 7 and turnover of about £575,000, so many are still lean; the common pattern is a technical or commercially literate team willing to instrument events, test journeys and feed behavioural evidence back into sales and product decisions.
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UK adoption remains a relatively small slice of business-facing analytics usage: 180 B2B companies in the UK are actively trading and running this stack. Employment footprint totals 1,779 reported staff. Within detected analytics use in the B2B category, the stack accounts for 0.4%, behind more general web-analytics and lead-identification tools in the category ranking. The regional pattern is London-heavy, with London at 44.4%, followed by the South East at 11.7%, the North West at 8.9%, the West Midlands at 8.3% and the East of England at 6.7%.
Exposure follows the underlying activity, rather than a single B2B licence. A software supplier, telecoms provider, financial-services firm or professional-services business can face different rulebooks even when the same analytics stack sits on the website. For marketing and product measurement, UK GDPR applies where personal data is processed, including business-contact and website-usage information. ICO guidance also matters for direct marketing: PECR covers live calls, automated calls, electronic mail and fax, while corporate email and text outreach must still identify the sender and provide a valid opt-out route. Live B2B calling also requires screening against CTPS and TPS, plus respect for prior objections.
Adoption appears pulled by teams moving beyond page-view reporting into event-level product and revenue analysis. The stack tends to fit companies with enough self-serve surface area to make behavioural instrumentation useful, but not always enough operating scale to support a large analytics function. Larger adopters appear comparatively scarce, so agency support, fractional growth roles and technically minded commercial teams may remain part of the buying pattern. Bundling by broader marketing and cloud suites could keep buyers split, while privacy review makes implementation quality more visible in procurement.
180
Active firms
2026
0.4%
Of detected Analytics share
UK B2B
7
Median headcount
Filed accounts
404
Verified contacts
Across this cohort
Key facts
About 6% of the trading cohort reports turnover above £5M (11 of 180 firms) — the rest sits below that revenue band.
19% of the cohort was incorporated since 2022 (35 firms), so a sizeable share is in its first few filing cycles.
Within B2B firms with a detectable analytics system, this product-analytics system accounts for 0.4% (180) of 45,574 companies.
Registered addresses are concentrated in London at 44.4% (80), followed by the South East at 11.7% (21) and the North West at 8.9% (16).
The largest overlapping sector tags are SaaS at 54.4% (98), Startup at 32.2% (58) and AI & Machine Learning at 25.6% (46).
404 verified contacts are associated with B2B firms running this product-analytics system.
ICO guidance says B2B emails or texts to corporate bodies do not need PECR consent, but senders must not conceal their identity and must provide a valid opt-out address.
Analytics market share among UK B2B
Share of the 45,574 UK B2B with a detectable system. As of June 2026.
What else do PostHog-running B2B run?
Share of the 180 PostHog-running UK companies where each technology was also detected. As of June 2026.
Where PostHog 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.
7
Median headcount
£574.7k
Median UK turnover
6.1%
Above £5M turnover
35
Incorporated since 2022
404 verified decision-maker contacts
across these 180 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK B2B using PostHog
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 filingsProvides sales and commercial support for a group offering a managed open‑source data platform. The platform delivers hosted services for databases, event streaming, search and analytics technologies…
Serves B2B developers, data engineering teams and technology leaders at startups and scaling enterprises, with emphasis on software, fintech and retail companies using cloud-based data infrastructure.
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 5 filingsDevelops cloud-based visual collaboration software used for diagramming, virtual whiteboarding, product roadmapping, and planning. The platform enables teams to design systems, map processes, plan…
Serves business and public-sector teams handling product, UX, engineering, IT, project management, operations, HR, finance and go-to-market work, with stated industry focus including education,…
Financial Health
StrongStrong
Location
VATICLE LTD
Financial sub-scores
Computed from 5 filingsDevelops TypeDB, a hypergraph database with a typed schema and query language (TypeQL) for modelling complex data and relationships. Provides open-source and enterprise editions, cloud hosting,…
Serves developers, data engineering teams and enterprises building complex data systems, especially in AI, knowledge graphs, cyber threat intelligence, financial intelligence and robotics.
Financial Health
StableStable · -10% CAGR over 4y
Location
CREOATE LIMITED
Financial sub-scores
Computed from 5 filingsOperates an online wholesale marketplace connecting independent retailers with brands and suppliers. The platform enables businesses to browse and order wholesale products including homeware, beauty…
Serves independent retailers buying wholesale stock for resale, and independent consumer goods brands seeking retailer customers, across homeware, gifts, fashion, beauty, food, pets and kids in the…
Financial Health
StrongStrong · Growing, Hiring · 92% CAGR over 4y
Location
Financial sub-scores
Computed from 3 filingsDevelops industrial data operations software that connects, models and streams data from manufacturing systems and equipment to enterprise and cloud applications, supporting analytics, unified…
Sells to industrial manufacturers and enterprise operations teams pursuing Industry 4.0, including life sciences, regulated manufacturing, OEMs, and companies with plant-floor, cloud, and analytics…
Financial Health
StrongStrong · Growing, Hiring · 80% CAGR over 3y
Location
Financial sub-scores
Computed from 5 filingsDevelops and operates a SaaS platform for billing, e‑commerce and business process automation. Software supports invoicing, subscription management, service provisioning, client management and…
Serves B2B subscription and service businesses, including web hosting providers, SaaS companies, digital agencies and other online service providers with recurring client relationships.
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
Location
GEEKFLARE LTD
Financial sub-scores
Computed from 5 filingsDevelops an AI platform providing a collaborative workspace to interact with multiple language models and manage prompts and projects. Offers developer APIs for web scraping and search data for RAG…
Serves B2B customers worldwide, including developer teams, AI product builders, operations teams, and businesses using LLMs, web data, SEO, security, network and productivity workflows.
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsProvides online payment processing services including a payment gateway, merchant accounts, payment links, and checkout integrations. Offers fraud management, chargeback management, PCI and ASV…
Sells to businesses that need to accept online payments, from start-ups and mobile app operators to global enterprises. Targets merchants seeking multi-currency checkout, international payment…
Financial Health
WeakWeak · -11% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsProvides embedded payment processing for online platforms and marketplaces, enabling acceptance of card and digital wallet payments, seller onboarding, automated split payments, subscription and…
Serves B2B marketplaces, platforms and merchants that need embedded payments, seller onboarding, split payments and transaction monetisation, including enterprise platform operators.
Financial Health
HealthyHealthy
Location
HOMESEARCH SERVICES LIMITED
Financial sub-scores
Computed from 3 filingsProvides property data, analytics and lead generation software for estate agents. Tools include prospecting for on‑market and off‑market properties, CRM-integrated data insights, landlord lead…
Sells B2B to UK estate agents and estate agency businesses, including agency owners, sales teams and CRM users focused on winning instructions and managing property-market contacts.
Financial Health
StableStable · -90% CAGR over 2y
Location
RECORDER LIMITED
Develops software-as-a-service for commercial insurance brokers, insurers and MGAs. Platform provides digital risk capture, quote and bind automation, delegated authority management, AI document…
Serves B2B customers in commercial insurance, including brokers, delegated authority underwriters, insurers and MGAs, particularly teams involved in open market broking and insurance distribution.
Financial Health
Insufficient historyInsufficient history
Location
Intruder Systems Ltd
Financial sub-scores
Computed from 5 filingsProvides a cybersecurity platform for vulnerability management, attack surface monitoring and cloud security. Scans infrastructure, web apps, APIs and containers to detect exposed assets,…
Serves B2B security and IT teams at companies with internet-facing infrastructure, cloud environments, web apps and APIs, especially lean teams managing security and compliance requirements such as…
Financial Health
StableStable · Hiring · 60% CAGR over 4y
Location
ZENOO LTD
Financial sub-scores
Computed from 5 filingsProvides a software platform for digital customer onboarding and compliance. Offers AI‑driven KYC, KYB and AML verification, identity document checks, risk scoring, monitoring, and workflow…
Serves compliance, risk, product and onboarding teams at regulated businesses, including fintech, banking, crypto, wealth and asset management, gambling, telecoms, legal services and luxury sectors.
Financial Health
StrongStrong
Location
Workable Options Ltd
Financial sub-scores
Computed from 5 filingsDevelops cloud-based HR software for recruiting and employee management. Platform includes job posting to multiple job boards, applicant tracking, candidate sourcing tools, onboarding workflows,…
Serves HR, recruiting and people operations teams at businesses across industries, from growing companies to larger employers, with customers in 100+ countries.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
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
PAIGER LIMITED
Financial sub-scores
Computed from 5 filingsProvides a business development platform for recruitment professionals. Aggregates direct employer job vacancies, company intelligence, and hiring manager contacts, and offers tools to research…
Sells to B2B recruitment agencies, staffing firms and individual recruiters seeking employer leads, company intelligence and outreach support for business development.
Financial Health
StrongStrong · Growing, Hiring · 37% CAGR over 4y
Location
DROVA LIMITED (FORMERLY TRILINE GRC LIMITED)
Financial sub-scores
Computed from 4 filingsProvides AI-powered governance, risk and compliance (GRC) software that helps organisations manage risks, controls, incidents, regulatory compliance, operational resilience, and sustainability…
Serves B2B risk, compliance, resilience and sustainability teams in regulated sectors including financial services, insurance, healthcare, education, energy, utilities, mining, manufacturing,…
Financial Health
StrongStrong · Hiring · 52% CAGR over 3y
Location
Financial sub-scores
Computed from 5 filingsDevelops time tracking and project management software for professional services firms. The platform includes timesheets, expense tracking, invoicing, resource planning, CRM modules, and integrations…
Sells to B2B professional services firms worldwide, from solo freelancers and start-ups to growing agencies, including accountants, architects, consultants, engineers, surveyors, environmental firms…
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 5 filingsDevelops and operates a software platform for managing employee benefits. Enables organisations to administer global benefit programmes, enrol staff in core and flexible benefits, manage allowances…
Sells to businesses with global workforces, especially HR and finance teams at enterprises and fast-growing scale-ups managing employee benefits, insurance and allowances across multiple countries.
Financial Health
StableStable · Hiring · 12% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsProvides email analytics and response-time tracking software for Outlook, Microsoft 365 and Gmail. The platform measures team email performance, assigns response deadlines, prioritises messages, and…
Serves mid-market and enterprise businesses with customer-facing email teams, including customer service, success, account management and internal service teams in legal, property management,…
Financial Health
HealthyHealthy · Hiring · 16% CAGR over 4y
Location
MIRRORWEB LIMITED
Financial sub-scores
Computed from 5 filingsDevelops software for capturing, archiving and supervising digital communications and website content. The platform records emails, messaging apps, social media and websites, using automated…
Serves regulated B2B and public-sector teams, including financial services, government, healthcare, insurance, legal and technology organisations, from small firms to global operations.
Financial Health
StrongStrong · Growing, Hiring · 18% CAGR over 4y
Location
TESTSKILL LIMITED
Financial sub-scores
Computed from 3 filingsProvides an online platform for creating and administering remote skills assessments for recruitment. Offers libraries of role‑specific tests, custom assessments, candidate invitations, remote…
Sells to B2B hiring teams, recruiters and HR leaders at growing and large organisations, with specific focus on call centres and technology employers assessing customer success, engineering and other…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
Develops and operates an online design feedback platform that enables teams and clients to review websites, Figma files, images, videos, PDFs and presentations, leave comments, track revisions, and…
Sells to designers, creative teams and agencies that need feedback from clients and internal reviewers on websites, Figma files, images, videos, presentations and PDFs.
Financial Health
Insufficient historyInsufficient history
Location
Financial sub-scores
Computed from 5 filingsProvides an online lending platform offering short‑term business financing. Enables companies to fund payables, receivables, inventory, marketing and other expenses, with automated underwriting, API…
Sells to registered businesses of any size, from small shops to large enterprises, across industries and sectors. Targets companies seeking flexible short-term financing for cash flow, payables,…
Financial Health
StrongStrong · Hiring · 8% CAGR over 5y
Location
Financial sub-scores
Computed from 5 filingsProvides online booking and reservation software for organisations running classes, courses, workshops and events. Platform enables scheduling, ticket sales, payment collection, automated…
Serves businesses, sole organisers and non-profits that run classes, courses, workshops, activities and events, including online classes, leisure sessions, outdoor activities, conferences and…
Financial Health
StrongStrong · Growing, Hiring · 17% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDevelops a cloud-based file data platform that provides enterprise storage, data management, backup and disaster recovery. Software enables hybrid cloud file systems, multi-site file sharing,…
Serves enterprise IT and infrastructure teams, including global multi-site organisations, across architecture and engineering, energy, financial services, healthcare, manufacturing, media, retail and…
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
TALENTMAPPER LIMITED
Financial sub-scores
Computed from 3 filingsDevelops talent management software for HR teams that analyses workforce data to support employee development, internal mobility, succession planning, and strategic workforce planning. Provides tools…
Sells to HR leaders and talent management teams in businesses managing employee development, internal mobility, succession planning and strategic workforce planning, particularly organisations using…
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 3 filingsDevelops financial business intelligence software for accountants and CFOs. Platform connects to accounting systems to generate automated financial reports, dashboards, forecasts, consolidated…
Serves accountants, accounting firms, CFOs and finance teams, including businesses managing reporting, forecasts, dashboards, consolidation, valuation, and ESG indicators.
Financial Health
StrongStrong
Location
Financial sub-scores
Computed from 3 filingsProvides data infrastructure and analytics for proof‑of‑stake blockchain networks, offering APIs and tools that track validator and node operator performance, rewards, and metadata, and a network…
Serves Web3 infrastructure teams, staking pools, node operators, developers and applications working with proof-of-stake networks such as Ethereum, Solana, Avalanche, Cosmos and Polygon.
Financial Health
StrongStrong · Growing, Hiring · 87% CAGR over 2y
Location
Glyphic AI Limited
Financial sub-scores
Computed from 3 filingsDevelops AI software that analyses sales calls and customer interactions to generate insights, automate CRM data entry, score deals, prepare call briefs, and provide coaching feedback to help sales…
Serves B2B revenue teams, including sales leaders, RevOps teams and account executives, at companies managing sales pipelines, CRM processes, forecasting, coaching and customer conversation data.
Financial Health
StrongStrong · Hiring · 66% CAGR over 2y
Location
Startpulsing Limited
Financial sub-scores
Computed from 5 filingsProvides an online market research platform that enables businesses to create short surveys, target demographic audiences, collect responses from a mobile user panel, and analyse consumer insights…
Sells to businesses and agencies needing rapid consumer research, including brand, marketing, product, creative, strategy and insights teams running surveys for brand tracking, concept testing,…
Financial Health
StrongStrong · Hiring · 7% CAGR over 4y
Location
Element Human Limited
Financial sub-scores
Computed from 4 filingsProvides a behavioural AI platform that measures consumer attention, emotion and memory in response to advertising. Uses eye‑tracking, facial coding, implicit tests and simulated social and video…
Sells to brand marketing and insights teams, creative and media agencies, and digital advertising platforms focused on campaign effectiveness for social, video, and CTV advertising.
Financial Health
StrongStrong · Hiring · 33% CAGR over 3y
Location
Financial sub-scores
Computed from 5 filingsDevelops a work management and collaboration platform that combines task tracking, project boards, documents, and meeting transcription in one application. Provides features such as sprints, search,…
Serves individuals, small teams and companies of all sizes, particularly project, product and engineering teams, as well as service businesses collaborating with clients.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
Financial sub-scores
Computed from 3 filingsDevelops cloud software for finance teams that consolidates data from multiple Xero, QuickBooks and other accounting systems. Provides tools for group financial reporting, intercompany…
Sells to B2B finance teams, group finance directors, accountants and bookkeepers managing multi-entity organisations that use Xero, QuickBooks or Pennylane.
Financial Health
HealthyHealthy · Hiring · 15% CAGR over 2y
Location
Financial sub-scores
Computed from 3 filingsDevelops online whiteboard software used by teams to run agile meetings, retrospectives, planning sessions and workshops. Platform provides collaborative canvases, templates, task tracking, shared…
Serves B2B agile software and product teams, including Scrum Masters, developers, agile coaches, delivery managers, product owners, engineering managers and product designers.
Financial Health
StrongStrong · Growing, Hiring · 13% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsProvides a contract management service that collects, organises and maintains digital repositories of business contracts. Processes uploaded agreements, extracts key data, and creates searchable…
Serves B2B legal and procurement teams, including general counsel, legal directors, legal managers and heads of procurement, in organisations managing contract repositories.
Financial Health
StableStable · Hiring · 28% CAGR over 4y
Location
Financial sub-scores
Computed from 4 filingsDevelops AI software that enriches product data and generates structured product‑page copy for ecommerce retailers. The platform analyses product information, fills data gaps, produces SEO‑optimised…
Serves ecommerce brands and retailers with large SKU catalogues, especially teams responsible for product content, merchandising, SEO, marketplace feeds and digital commerce operations.
Financial Health
StrongStrong · Hiring · 47% CAGR over 3y
Location
Financial sub-scores
Computed from 3 filingsProvides a software platform for professional services firms to manage introducer relationships and client referrals. Features include referral workflow management, compliance record‑keeping,…
Sells to UK regulated professional services firms, including accountancy practices, financial advisers, wealth managers, solicitors, corporate finance advisers, mortgage advisers, protection…
Financial Health
HealthyHealthy · Hiring · 65% CAGR over 2y
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
Esteiro Business Solutions Limited
Financial sub-scores
Computed from 5 filingsDevelops and supplies customer relationship management (CRM) software for sales, marketing, customer support and project management. Provides CRM implementation, hosting, system integrations,…
Serves mid-market B2B organisations, particularly in construction, manufacturing, IT and software, targeting sales, marketing, customer support and project teams.
Financial Health
StableStable · -6% CAGR over 4y
Location
CONTRA CONSULTING LTD
Financial sub-scores
Computed from 3 filingsOperates an online professional network connecting freelance creatives and independent professionals with companies. Provides tools for job discovery, contractor hiring, project management,…
Serves independent creative freelancers seeking clients and project admin tools, plus companies and teams hiring, managing and paying flexible contractor workforces; also addresses partners running…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsProvides a digital employee assistance programme (EAP) platform offering same-day counselling sessions, 24/7 helpline support, mental health training for managers, and self‑guided wellbeing resources…
Serves businesses and organisations seeking employee wellbeing support, including tech startups and scale-ups, digital agencies and studios, nurseries, schools, universities, charities and…
Financial Health
StrongStrong · Hiring · 14% CAGR over 4y
Location
Reka AI Limited
Financial sub-scores
Computed from 3 filingsDevelops multimodal artificial intelligence models and platforms that analyse video, images, audio and text. Provides tools for captioning, detection, search, embeddings and speech understanding, and…
Sells to enterprises and developer teams needing multimodal AI models for video, image, audio and text, including organisations requiring private cloud, on-premises, VPC or air-gapped deployments.
Financial Health
StableStable · 0% CAGR over 2y
Location
TAB LABS LTD
Financial sub-scores
Computed from 5 filingsProvides an online payment and booking platform for tourism businesses such as hotels, tour operators and activity providers. Enables acceptance of international card payments online, in advance or…
Serves B2B travel and tourism businesses of all sizes, including hotels, hostels, large hotel chains, retreats, tour operators and activities providers, especially those taking bookings and payments…
Financial Health
StableStable · Hiring · 2% CAGR over 4y
Location
DRPCRD Limited
Financial sub-scores
Computed from 4 filingsProvides an online platform for managing influencer and creator marketing campaigns. Enables brands and agencies to find creators, send campaign briefs, communicate, review and approve content,…
Serves marketing teams at consumer brands and agencies running influencer or creator campaigns, plus creators who collaborate on briefs. Targets organisations managing project-based content campaigns.
Financial Health
HealthyHealthy · 0% CAGR over 3y
Location
Financial sub-scores
Computed from 4 filingsProvides sales training, certification and software based on the MEDDPICC sales qualification methodology. Offers playbooks, online courses and a SaaS operating system with opportunity management,…
Serves B2B companies with sales, revenue and go-to-market teams, targeting sales leaders, sellers and enablement teams adopting MEDDPICC across their organisation.
Financial Health
StableStable · 0% CAGR over 3y
Location
CLOUDLINE APP UK LIMITED
Financial sub-scores
Computed from 5 filingsDevelops and supplies cloud-based guest and payment management software for hospitality and entertainment venues. Platform includes mobile ordering and payment, booking and event management, CRM,…
Sells B2B to hospitality and leisure venue operators, including hotels, golf clubs, driving ranges, sports stadiums, amusement parks and entertainment venues, particularly teams managing guest…
Financial Health
StableStable · -67% CAGR over 4y
Location
AGEMO AI LTD
Financial sub-scores
Computed from 2 filingsDevelops and operates a software platform for building and running automated workflows and AI agents. Provides tools to design logic, create user interfaces, integrate third‑party services, and…
Serves founders, engineers, builders and service agencies seeking to create client-facing software, branded portals and internal automations, including fast-growing companies and teams using…
Financial Health
StableStable · Hiring · 75% CAGR over 1y
Location
Provides a payment automation platform for businesses and accountants, enabling invoice collection, direct debit payments, credit control, and automated payment chasing. Integrates with accounting…
Serves accounting firms, bookkeepers and invoice-based businesses, plus software platforms needing payment workflows. Targets finance teams and professional services practices using tools such as…
Financial Health
Insufficient historyInsufficient history
Location
Peritus Learning and Development Limited
Financial sub-scores
Computed from 3 filingsProvides online training courses for organisations, including management development modules and microlearning content. Offers a subscription library of 180+ courses with SCORM-compatible materials…
Serves UK businesses and organisations of any size seeking workforce training for all employees, including managers, aspiring managers, first-line supervisors and senior executives.
Financial Health
StableStable · Hiring · 7% CAGR over 2y
Location
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How PostHog 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.
PostHog is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
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