SaaS Companies Using Microsoft Clarity in the UK: 311 Active Firms (2026)
SaaS companies using web analytics sell subscription cloud software and measure public-website behaviour in the UK market.
For SaaS suppliers, a behavioural analytics script usually sits between marketing, product and sales operations rather than inside one department. It helps teams see how prospects move through pricing pages, trial sign-up, documentation and demo journeys, then feed those observations into conversion work and customer acquisition reporting. Adoption tends to signal a company with enough inbound demand to measure, a marketing function with testable hypotheses, and a product team interested in friction before the sales conversation. The fit is usually B2B or public-sector-facing software, where buying cycles are considered and website visits can represent either self-serve intent or early enterprise research.
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UK adoption within SaaS is a small but visible slice of the category: 311 actively trading companies are running the tool, and it sits second in the sector’s analytics ranking at 9.8%. Companies running the tool report 3,094 employees between them. The registered-location skew is London-heavy at 39.2%, with the South East at 15.4%, the North West at 10.6%, the South West at 7.4% and the East of England at 6.4%. That mix points to a buyer base concentrated in the UK’s usual software sales and investor networks, rather than a purely regional SaaS pattern.
UK SaaS suppliers are not licensed under a sector-wide regime, so obligations attach to what the software does, the customers it serves and the personal data processed through marketing and product systems. The ICO is the relevant data-protection regulator, with UK GDPR and Data Protection Act 2018 duties relevant where prospect, user or customer behaviour is captured. Procurement teams in regulated markets also tend to ask how analytics tags are governed, who can view session-level evidence, and how consent choices are recorded. Cloud dependency adds another market-structure angle: the CMA closed its public-cloud infrastructure investigation on 31 July 2025 after finding an adverse effect on competition and moving to remedies.
Adoption appears likely to remain tied to demand-generation maturity rather than to SaaS status alone. Firms with self-serve trials, content-led acquisition and distributed buying committees have clearer reasons to keep behavioural analytics in the stack; founder-led vendors with low site traffic may treat it as optional. Privacy practice will also shape use, with consent management, retention policies and internal access controls becoming part of ordinary website operations. Vendor bundling may reduce the number of standalone tools in play, while product-led SaaS teams still tend to value visual evidence of friction in sign-up, onboarding and pricing journeys.
Adoption by company size
Adoption of Microsoft Clarity rises with company size across the trading UK SaaS companies in this cohort. 0.5% of the 37,913 companies with under 10 employees run Microsoft Clarity (176 detected). 6.3% of the 1,886 companies with 10–50 employees run Microsoft Clarity (119 detected). 4.2% of the 166 companies with over 50 employees run Microsoft Clarity (7 detected). That is a 3.7% gap between the over 50 employees and under 10 employees bands.
311
Active firms
2026
9.8%
Of detected Analytics share
UK SaaS
8
Median headcount
Filed accounts
738
Verified contacts
Across this cohort
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Key facts
About 7% of the trading cohort reports turnover above £5M (23 of 311 firms) — the rest sits below that revenue band.
8% of the cohort was incorporated since 2022 (26 firms), so a sizeable share is in its first few filing cycles.
Within SaaS companies with a detectable analytics system, the profiled analytics tool accounts for 9.8% (311) of detections, against 81.5% (2,580) for the largest rival system across a 3,165-company denominator.
London accounts for 39.2% (122) of SaaS running the profiled analytics tag, followed by the South East at 15.4% (48) and the North West at 10.6% (33).
The most common co-detected tools are tag management at 77.8% (242), content-delivery and security tooling at 66.6% (207), and another analytics platform at 63.0% (196).
Overlapping sector tags put AI & Machine Learning at 22.5% (70), Startup at 21.9% (68), Scale-up at 11.3% (35) and Fintech at 10.9% (34).
Website analytics that involves personal data sits under UK GDPR and the Data Protection Act 2018, with the ICO as the relevant UK data-protection regulator.
Analytics market share among UK SaaS
Share of the 3,165 UK SaaS with a detectable system. As of June 2026.
What else do Microsoft Clarity-running SaaS run?
Share of the 311 Microsoft Clarity-running UK companies where each technology was also detected. As of June 2026.
Where Microsoft Clarity SaaS 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.
8
Median headcount
£708.6K
Median UK turnover
7.4%
Above £5M turnover
26
Incorporated since 2022
738 verified decision-maker contacts
across these 311 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK SaaS using Microsoft Clarity
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
Financial sub-scores
Computed from 4 filingsDevelops and delivers cloud-based enterprise resource planning (ERP) software via a SaaS platform. Provides integrated applications for finance, HR, asset management, budgeting, analytics, and…
Serves public-sector and enterprise organisations, including councils, universities, government agencies, health and community providers, asset-intensive operators, and financial/corporate…
Financial Health
StrongStrong · Growing, Hiring · 6% CAGR over 3y
Location
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Computed from 5 filingsDevelops data intelligence software providing access to global corporate, ownership and trade records. Platform maps relationships between companies and individuals to support supply chain risk…
Serves enterprise and public-sector risk teams, including trade compliance, financial crime, procurement, law enforcement, regulatory, defense and intelligence analysts investigating corporate,…
Financial Health
StrongStrong · Hiring · 86% CAGR over 4y
Location
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Computed from 4 filingsDevelops and supplies Compucare hospital management software for private healthcare providers and NHS units, including patient administration and electronic patient record systems, appointment…
Serves private healthcare providers and NHS organisations, including private hospital groups, independent hospitals and clinics, NHS private patient units, therapy and orthotic departments, and…
Financial Health
HealthyHealthy · Profitable, Hiring · 10% CAGR over 3y
Location
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Computed from 3 filingsDevelops cloud-based IT management software that enables organisations and managed service providers to monitor and manage endpoints, deploy patches, automate IT tasks, perform remote support, manage…
Sells to enterprise IT teams, managed service providers, and IT departments in sectors including software, healthcare, education, financial services, and federal, state and local government.
Financial Health
StrongStrong · Hiring · 51% CAGR over 2y
Location
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Computed from 4 filingsDevelops software and services for data compliance and risk management, including data mapping for privacy requests, enterprise information archiving, trade surveillance, communications recording,…
Serves compliance, risk and data governance teams in highly regulated sectors, including financial services, legal, insurance, crypto, pharmaceuticals, healthcare, recruitment, public sector and…
Financial Health
HealthyHealthy · Hiring · 40% CAGR over 3y
Location
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Computed from 3 filingsDevelops cloud software that converts Excel-based pricing and risk models into scalable web applications and APIs. Provides underwriting workbench, insurance pricing, and lending origination systems…
Sells to B2B insurance and financial services organisations, including insurers, MGAs, brokers, banks and lenders, targeting actuaries, underwriters, pricing teams and executives from SME to…
Financial Health
StrongStrong · Hiring · 25% CAGR over 2y
Location
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Computed from 5 filingsDevelops cloud‑based electronic health record (EHR) and practice management software for private healthcare clinics. The platform provides appointment booking, billing, patient portals, clinical…
Serves UK private healthcare practices and practitioners, including medical aesthetics, mental health, private GP, nutrition, wellness, physiotherapy, audiology, dietetics and functional medicine…
Financial Health
HealthyHealthy · 0% CAGR over 5y
Location
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Computed from 2 filingsProvides legal technology software and services for law firms, including practice management, legal accounts and case management systems, conveyancing searches and due diligence, AML/KYC checks,…
Serves UK law firms of all sizes, from sole practitioners and small to medium practices to large and top-tier firms, especially legal professionals involved in conveyancing, compliance, client…
Financial Health
StrongStrong · Hiring · 129% CAGR over 1y
Location
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Computed from 3 filingsProvides cloud-based software for estates and facilities management, fleet management, and risk management. Develops CAFM and IWMS applications on Microsoft Azure and offers custom software…
Serves private and public sector organisations needing estates, fleet or risk management systems, including multinationals, SMEs, universities, transport authorities, local government, NGOs and…
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides software for B2B SaaS companies to manage billing and financial operations, including configure‑price‑quote, subscription and usage‑based billing, invoicing, revenue recognition, accounts…
Sells to B2B SaaS companies, including AI, cybersecurity and healthcare software firms. Targets finance teams, product leaders, developers and sales teams that need billing, subscription management,…
Financial Health
StrongStrong · Growing, Hiring · 53% CAGR over 4y
Location
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Computed from 2 filingsProvides software for third‑party vendor risk management, enabling organisations to onboard and assess suppliers, conduct due diligence, monitor cybersecurity threats and vulnerabilities, manage…
Sells to businesses managing third-party and cybersecurity risk, from SMBs to large global enterprises. Targets procurement, information security, risk and compliance, and third-party risk teams in…
Financial Health
StrongStrong · Hiring · 60% CAGR over 1y
Location
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Computed from 5 filingsDevelops practice and case management software for enterprise law firms, integrating matter management, legal accounting, document management, compliance tools, reporting and API integrations to…
Sells to enterprise law firms in the UK, serving legal practices seeking practice and case management software, including firms with multiple departments and complex compliance, accounting and…
Financial Health
HealthyHealthy · -4% CAGR over 5y
Location
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Computed from 5 filingsDevelops and provides applicant tracking and recruitment management software for employers. The platform supports vacancy approval, job advertising, online applications, candidate screening,…
Serves HR and recruitment teams in organisations of all sizes, including care providers, NHS bodies, local government, education and other employers managing structured hiring.
Financial Health
StrongStrong · Growing, Hiring · 3% CAGR over 4y
Location
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Computed from 3 filingsProvides secure virtual data room software used in mergers and acquisitions, real estate transactions, fundraising and due diligence. Platform offers document storage, sharing, analysis and AI tools…
Serves B2B dealmakers and transaction teams in M&A, real estate, financial services, legal, energy and startups, including advisory firms, asset managers and fundraising teams managing due diligence…
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 2y
Location
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Computed from 5 filingsDevelops software for the insurance industry, including the DQPro platform used by insurers and brokers to validate and manage underwriting data, apply market data standards, and produce reporting…
Serves insurers, carriers, brokers and Lloyd’s managing agents in the global insurance market, targeting insurance business and IT teams with data quality and validation needs.
Financial Health
StrongStrong · Growing, Hiring · 9% CAGR over 4y
Location
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Computed from 5 filingsDevelops and supplies cloud-based care management software for healthcare and social care providers. The platform includes electronic care planning, medication administration records (eMAR), staff…
Serves UK care providers including residential care homes, domiciliary care agencies, supported living services, large care groups, council day centres and specialist colleges, targeting managers and…
Financial Health
HealthyHealthy · -63% CAGR over 4y
Location
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Computed from 3 filingsDevelops and provides Atlas, a knowledge management and intranet platform for Microsoft 365. The software structures enterprise content to enable enterprise search, expertise directories, and…
Sells to B2B enterprises using Microsoft 365, especially legal, professional services, financial services and insurance firms, targeting knowledge, innovation and IT leaders and teams.
Financial Health
StableStable · -7% CAGR over 2y
Location
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Computed from 5 filingsDevelops cloud-based identity governance and administration software that automates user access reviews, access certification and entitlement audits. Platform supports identity lifecycle management,…
Sells to enterprise IT, security, identity governance and compliance teams at companies with access review, audit and risk requirements, including regulated sectors such as banking, healthcare and…
Financial Health
StrongStrong · Hiring · 41% CAGR over 4y
Location
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Computed from 4 filingsProvides digital debt collection services and software for businesses, using AI-driven platforms to manage consumer debt recovery, customer communications, payment plans and self‑service portals…
Sells to businesses, particularly enterprise and high-growth organisations needing first- and third-party consumer debt collection support. Serves teams operating across regulated markets in the UK,…
Financial Health
StrongStrong · Hiring · 22% CAGR over 3y
Location
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Computed from 5 filingsDevelops cloud-based digital asset management and brand content software. Platform centralises media assets, provides brand portals, templated content creation, approval workflows, analytics and…
Serves B2B enterprise marketing, brand, HR and agency teams at large, multi-market brands, including automotive, energy, pharma, banking and retail organisations.
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 5y
Location
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Computed from 5 filingsDevelops workflow software for insurance companies to manage claims and related documents. Provides a platform for case tracking, form-based data capture, email processing, legacy data import, and…
Serves B2B insurance-sector organisations, including claims teams and claim handlers across multiple lines of insurance, from professional indemnity to marine.
Financial Health
StrongStrong · Growing, Hiring · 3% CAGR over 4y
Location
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Computed from 3 filingsDevelops data decisioning and automation software for financial and commercial organisations. Provides platforms for credit origination, prescreening, risk and fraud management, customer acquisition,…
Serves B2B enterprises in financial services, retail, automotive and telecoms, especially lenders, credit providers and merchants managing customer acquisition, risk, fraud and credit decisioning.
Financial Health
HealthyHealthy · Hiring · 41% CAGR over 2y
Location
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Computed from 3 filingsDevelops software systems, AI tools and operational infrastructure for financial advice businesses. Provides platforms and services for client management, compliance, insurance, finance and adviser…
Serves B2B customers in the UK financial advice sector, including independent financial advisers, adviser networks, multinational firms, private equity-backed groups and fintechs with client-facing…
Financial Health
StrongStrong · Hiring · 58% CAGR over 2y
Location
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Computed from 2 filingsDevelops banking and lending software for financial institutions, including core banking systems, digital banking tools, payment processing, crypto asset management, deposit management, regulatory…
Serves B2B financial institutions, including banks, building societies and lenders across retail, wholesale, asset finance and dealer floorplan financing, plus teams responsible for payments,…
Financial Health
StrongStrong
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Computed from 3 filingsDevelops cloud-based BSS/OSS software for broadband and fibre network operators, supporting sales, customer management, service provisioning, billing, wholesale network management, and field service…
Serves broadband and fiber network operators, including traditional ISPs, wholesale providers and open-access/shared infrastructure networks, plus their sales, field operations, billing and…
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 2y
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Computed from 3 filingsProvides cloud-based software for managing supplier pricing and rebate agreements. The platform centralises pricing and rebate data, automates calculations and workflows, and offers analytics and AI…
Sells to B2B procurement, finance and sales teams in distribution, manufacturing, retail, food services, and health and life sciences organisations managing complex partner and supplier agreements.
Financial Health
StrongStrong · Hiring · 25% CAGR over 2y
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Computed from 5 filingsProvides cloud-based email marketing and transactional email software with drag‑and‑drop design tools, automation, segmentation, A/B testing, analytics, and developer APIs/SMTP services for sending,…
Serves B2B marketing and developer teams at small businesses, technology companies, agencies, enterprises, franchises and real estate firms, plus ecommerce teams using platforms such as Shopify and…
Financial Health
StrongStrong · Hiring · 34% CAGR over 4y
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Computed from 5 filingsDevelops business management and field service software for industries such as pest control, lawn care, cleaning and security. Products include routing optimisation, workforce management, ERP,…
Serves B2B field service and mobile workforce businesses, including pest control, lawn care, landscaping, cleaning, janitorial, security guarding, delivery, logistics and medical transport operators.
Financial Health
StrongStrong · Growing, Hiring · 3% CAGR over 4y
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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
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Computed from 5 filingsProvides a cloud platform‑as‑a‑service for developing, deploying, and managing web applications. Supports multiple programming languages and frameworks, Git‑driven workflows, preview environments,…
Sells to development teams and platform engineering leaders at businesses and public-sector organisations, including SaaS, ecommerce/CMS, financial services, government, manufacturing, higher…
Financial Health
StrongStrong · Growing, Hiring · 24% CAGR over 4y
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Computed from 5 filingsProvides procurement and supply chain management software for the construction sector, including contractor pre‑qualification, compliance verification, risk monitoring, tender management, and…
Serves construction-sector buyers, main contractors and public sector procurement teams, alongside subcontractors, material suppliers and facilities management providers seeking access to…
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
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Computed from 3 filingsDevelops sales enablement and customer onboarding software. Provides digital sales room workspaces where sales teams share content, proposals, quotes and action plans with buyers, track engagement…
Serves B2B revenue teams, including BDR/SDR teams, account executives, customer success, account management, CROs and partnerships managers involved in sales, onboarding, account management and…
Financial Health
StrongStrong · Growing, Hiring · 78% CAGR over 2y
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Computed from 5 filingsProvides software for managing corporate giving and employee volunteering programmes, including payroll giving, donation matching, charity payments, grant management, reporting, and charity due…
Serves HR, CSR/ESG and community engagement teams at large enterprises, especially banks, building societies and other global corporations managing employee giving, volunteering and grant programmes…
Financial Health
StableStable · -2% CAGR over 4y
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Computed from 5 filingsDevelops cybersecurity awareness and human risk management software that monitors on‑device behaviour and delivers real‑time prompts and micro‑training to employees, helping organisations identify…
Serves B2B organisations, especially enterprise security, IT, GRC and HR leaders responsible for employee cyber risk, security awareness, compliance and board-level reporting.
Financial Health
StrongStrong · Hiring · 61% CAGR over 4y
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Computed from 4 filingsDevelops workforce management software including staff rostering, time and attendance tracking, absence management, employee self‑service, demand-based scheduling, skills tracking, geolocation…
Serves B2B employers with shift-based workforces, including golf clubs, manufacturers, hospitality venues, care homes, contact centres, construction firms, hotels, retailers and bars. Targets…
Financial Health
HealthyHealthy · 3% CAGR over 3y
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Computed from 5 filingsDevelops cloud-based financial and operational reporting software for consolidating data across multiple entities. Provides dashboards, budgeting and forecasting tools, and automated reports…
Serves finance teams in multi-entity businesses and accountancy practices managing client reporting, particularly organisations using Xero, QuickBooks, Sage, spreadsheets and related finance systems.
Financial Health
StrongStrong · Growing, Hiring · 46% CAGR over 4y
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Computed from 4 filingsDevelops supply chain risk management software that maps supplier networks, collects supplier self-assessments, and provides monitoring, verification, and analytics to support regulatory compliance,…
Serves large enterprises and organisations with complex global supply chains, especially procurement, compliance, sustainability and risk teams responsible for supplier oversight and regulatory…
Financial Health
StrongStrong · Growing, Hiring · 8% CAGR over 3y
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Computed from 2 filingsDevelops and provides digital platforms for hospitals including bedside entertainment and patient engagement applications, hospital WiFi connectivity, analytics software, and bed and patient‑flow…
Serves NHS trusts, hospitals and healthcare providers, plus B2B operators in transport, retail, hospitality, tourism and conference venues that need patient, visitor, guest or passenger connectivity…
Financial Health
HealthyHealthy · Profitable · -9% CAGR over 1y
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Computed from 5 filingsDevelops conversational artificial intelligence software that automates customer service and operational workflows. Provides multilingual chat and voice interactions, system integrations, and AI…
Sells to organisations needing AI customer engagement and workflow automation, especially healthcare providers, financial services firms, banks, insurers, forex businesses, iGaming operators and…
Financial Health
StrongStrong
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Computed from 5 filingsProvides a cloud-based platform for designing and publishing interactive digital documents and content. Features include design tools, embedded assessments, AI-generated video avatars, controlled…
Sells to businesses and public sector organisations needing interactive communications, training or marketing content, including HR, L&D, recruitment, marketing and internal communications teams at…
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 4y
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Computed from 5 filingsDevelops financial reporting and corporate performance management software for ERP systems including Epicor, SAP Business One, Nextworld and Acumatica. Provides tools for report design, Excel-based…
Serves B2B finance teams, report power users, cost-centre managers and executives in organisations running Epicor, SAP Business One/ByDesign, Nextworld, Acumatica or Coda ERP systems.
Financial Health
StrongStrong · Hiring · 6% CAGR over 4y
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Computed from 5 filingsProvides payment and payroll technology including on‑demand pay (earned wage access), faster bulk payroll payments, salary‑linked savings, and payment workflow tools that allow employers to…
Serves businesses and employers, particularly payroll, finance and HR teams managing employee pay and workforce financial wellbeing, with employees as end users for salary-linked services.
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
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Computed from 3 filingsProvides cloud-based compliance management software for schools and multi-academy trusts. Platform manages health and safety, risk assessments, statutory reporting, asset management and staff…
Serves education organisations, including primary and secondary schools, multi-academy trusts and independent schools, with buyers such as site, facilities, compliance and senior leadership teams.
Financial Health
StrongStrong · Growing, Hiring · 40% CAGR over 2y
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Computed from 5 filingsProvides a cloud-based career wellness and workforce transition platform offering outplacement support, internal career mobility tools, skills assessment, training resources, and career coaching.…
Serves HR and people leaders at companies of all sizes, plus governments and public-sector employment service providers, supporting workforces through layoffs, redeployment, upskilling and career…
Financial Health
StrongStrong · Hiring · 11% CAGR over 4y
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Computed from 5 filingsDevelops and provides online property management software for landlords and property managers. The platform supports tenancy management, rent collection, expense tracking, document storage,…
Sells to UK private and commercial landlords, buy-to-let and HMO portfolio owners, student landlords, property accountants, housing associations, social housing providers and local authorities.
Financial Health
StrongStrong · Hiring · 9% CAGR over 4y
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Computed from 5 filingsDevelops cloud-based business management software including inventory management, job and project management, and customer relationship management tools. Provides integrations and modules for sectors…
Serves businesses managing stock and projects, particularly in manufacturing, building and construction, retail and wholesale, and healthcare, including teams using Xero or migrating from WorkflowMax.
Financial Health
StableStable · Hiring · 26% CAGR over 4y
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Computed from 5 filingsProvides software and data analytics to help organisations manage business travel and vehicle mileage. Platforms track and analyse mileage, fuel and charging data to control costs, measure carbon…
Serves businesses with company car, cash allowance and electric vehicle fleets, including fleet, finance and sustainability teams managing employee business mileage across multiple countries.
Financial Health
HealthyHealthy · 1% CAGR over 4y
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Computed from 4 filingsDevelops and provides fleet management software for organisations operating vehicle fleets. The platform manages vehicle, driver and asset records, compliance tasks, licence checks, maintenance…
Serves UK businesses operating vehicle fleets, including fleet and transport managers, staff responsible for company vehicles and drivers, and operators holding O Licences or managing FORS/DVSA…
Financial Health
HealthyHealthy · -76% CAGR over 3y
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Computed from 3 filingsDevelops laboratory informatics software for life sciences and diagnostics, including laboratory information management systems (LIMS), electronic lab notebooks, and scientific data management…
Serves life sciences organisations, including pharmaceutical and biotech R&D teams, clinical diagnostics labs, CROs, CDMOs, and regulated manufacturing and QC laboratories.
Financial Health
StrongStrong · Growing, Hiring · 44% CAGR over 2y
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Computed from 3 filingsDevelops enterprise master data management software that centralises, governs and synchronises core business data across systems. Platform provides data stewardship, reference data management, and…
Serves B2B enterprise data, IT and business leaders, especially in manufacturing, healthcare and financial services, plus Microsoft ecosystem teams and implementation partners supporting large-scale…
Financial Health
StableStable · -18% CAGR over 2y
Location
Unlock all 311 leads
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Unlock all 311 leads
Showing 50 of 311 — +261 more with verified decision-maker contacts, live data, and CRM sync.
How Microsoft Clarity 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. SaaS 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 SaaS 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.
Microsoft Clarity is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
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Frequently asked questions
How many UK SaaS companies use Microsoft Clarity?
What share of UK SaaS companies run Microsoft Clarity?
How is Microsoft Clarity usage detected?
What size SaaS companies use Microsoft Clarity in the UK?
What do Microsoft Clarity-running SaaS companies also run?
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