SaaS Companies Using Amazon ELB in the UK: 111 Active Firms (2026)
SaaS providers running cloud load balancing sell subscription cloud applications with public-web traffic management in a UK market shaped by UK GDPR.
For SaaS providers, a managed load-balancing layer sits between public web traffic and application infrastructure, routing requests, absorbing traffic variability and supporting failover when applications need to stay reachable. Running this stack tends to signal a production engineering function rather than a purely brochureware web presence: the company has live customer workflows, monitoring expectations, and enough cloud spend to care about uptime and release discipline. Buyers are usually business or public-sector teams, often with data-sensitive workflows, so adoption also points to a sales motion where security questionnaires, service-level language and operational evidence matter before procurement will move.
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111 UK SaaS providers are actively trading with this load-balancing service visible on their public web estates, a narrow adoption cohort rather than a proxy for the whole software market. Reported headcount totals 1,938, giving the group a visible employment footprint despite many firms remaining small. Among SaaS providers where a load-balancer is visible across a 207-company denominator, this system sits first at 53.6%, with the next detected alternative at 46.4%. Adoption is concentrated in London at 45.0%, followed by the South East at 16.2%, the North West at 9.9%, the South West at 7.2% and the West Midlands at 5.4%.
UK SaaS suppliers are not licensed as one sector, so regulatory exposure follows the work their applications perform and the customers they serve. UK GDPR and ICO expectations matter where customer, employee or end-user personal data moves through hosted applications, while cyber security, consumer and contract rules can become material in procurement. For cloud-dependent SaaS, market structure is also a competition issue: the CMA has scrutinised public cloud infrastructure services, found an adverse effect on competition and recommended remedies, alongside strategic-market-status work for major infrastructure providers. That context makes portability, resilience and contractual exit terms part of the stack discussion, not just engineering detail.
Adoption appears sticky where SaaS providers already run customer-facing applications on cloud infrastructure, because load-balancing decisions sit close to deployment patterns, monitoring and incident response. Switching tends to happen around broader platform migrations rather than as an isolated procurement event. Smaller teams may accept bundled defaults, while more mature sellers are likely to examine multi-region resilience, audit trails and contractual portability as buyers ask harder operational questions. The main constraint is not appetite for web-traffic management, but the cost and disruption of changing infrastructure once customer workloads and security evidence are tied to an existing stack.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
Adoption by company size
Adoption of Amazon ELB rises with company size across the trading UK SaaS companies in this cohort. 0.2% of the 37,913 companies with under 10 employees run Amazon ELB (65 detected). 2.1% of the 1,886 companies with 10–50 employees run Amazon ELB (40 detected). 3% of the 166 companies with over 50 employees run Amazon ELB (5 detected). That is a 2.8% gap between the over 50 employees and under 10 employees bands.
111
Active firms
2026
53.6%
Of detected Load balancers share
UK SaaS
7
Median headcount
Filed accounts
288
Verified directors
Across this cohort
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Key facts
About 4% of the trading cohort reports turnover above £5M (5 of 111 firms) — the rest sits below that revenue band.
7% of the cohort was incorporated since 2022 (8 firms), so a sizeable share is in its first few filing cycles.
Within SaaS firms where a load-balancing system is detectable, the system on this page accounts for 53.6% (111) of 207 companies, compared with 46.4% (96) for the other detected system.
London accounts for 45.0% (50) of the cohort, followed by the South East at 16.2% (18) and the North West at 9.9% (11).
Every firm in the cohort also shows the underlying public-cloud platform at 100.0% (111), while 70.3% (78) also show a tag-management layer.
Regulatory exposure tends to come through the ICO, UK GDPR and the Data Protection Act 2018 rather than a SaaS-provider licensing regime.
The CMA closed its public cloud infrastructure services investigation on 31 July 2025, reported an adverse effect on competition and recommended strategic market status investigations into the two largest cloud infrastructure providers.
Load balancers market share among UK SaaS
What else do Amazon ELB-running SaaS run?
Share of the 111 Amazon ELB-running UK companies where each technology was also detected. As of June 2026.
Where Amazon ELB 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.
7
Median headcount
£797.3K
Median UK turnover
4.5%
Above £5M turnover
8
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 219 companies, alongside financials and websites, in one Excel + CSV file.
Top UK SaaS using Amazon ELB
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 filingsDevelops compliance and regulatory reporting software for the investment management industry. Provides a modular platform supporting investment compliance monitoring, shareholder disclosure tracking,…
Serves B2B financial institutions globally, including asset managers, fund managers, wealth managers, global depositaries, fund administrators and service providers operating across multiple…
Financial Health
StableStable · -69% CAGR over 4y
Location
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Computed from 5 filingsProvides a secure cloud-based collaboration platform that enables organisations to create online workspaces for teams and external stakeholders. Features include document management, task management,…
Serves public sector organisations, enterprises and not-for-profits needing to involve internal teams, external stakeholders, partners, clients and suppliers in cross-organisation projects.
Financial Health
HealthyHealthy · -7% CAGR over 4y
Location
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Computed from 4 filingsDevelops and provides a digital experience platform used to build and manage websites and online services. Offers content management, AI-powered search and chatbots, web components, form builders,…
Sells to enterprise organisations, especially government bodies, higher education institutions, professional services firms and utilities, targeting digital, content and customer experience teams.
Financial Health
StrongStrong · Hiring · 9% CAGR over 3y
Location
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Computed from 3 filingsProvides cloud-based digital network and software for life sciences and healthcare supply chains, enabling companies to coordinate with partners, manage manufacturing and distribution, and support…
Serves B2B life sciences and healthcare supply chain organizations, including life sciences companies, direct material suppliers, contract manufacturers, 3PLs, wholesale distributors, healthcare…
Financial Health
StrongStrong · Profitable, Hiring · 16% CAGR over 2y
Location
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Computed from 5 filingsDevelops AI-powered risk intelligence software that collects and analyses multilingual digital data to identify threats, resolve identities, and assess vendor and supply‑chain risk. Provides tools…
Serves public-sector defence and law enforcement agencies, plus global enterprises and FinTech firms with analyst, security, compliance, supply chain risk, and investigations teams handling identity,…
Financial Health
StrongStrong · Hiring · 26% CAGR over 4y
Location
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Computed from 4 filingsProvides cloud-native digital forensics and incident response software that captures and analyzes data from cloud infrastructure, enabling investigators to collect evidence, conduct cyber incident…
Serves B2B and public-sector organizations of all sizes, targeting CISOs, SOC teams and cybersecurity professionals responsible for enterprise network, email, cloud, identity, endpoint and OT…
Financial Health
HealthyHealthy · Hiring · 129% CAGR over 3y
Location
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Develops cybersecurity software for exposure and vulnerability management. Provides tools to identify, assess and prioritise security risks across IT, cloud, identity and OT/IoT environments,…
Serves enterprise and public-sector cybersecurity teams in education, energy, financial services, healthcare, retail, critical infrastructure and government, alongside managed security service…
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Computed from 4 filingsDevelops cloud-based software for log analytics, security monitoring, and IT observability. The platform collects and analyzes machine data to detect security threats, monitor infrastructure and…
Serves B2B and public sector organisations, targeting security operations, IT, DevOps and engineering teams across education, finance, gaming, manufacturing, retail and tech/SaaS.
Financial Health
StableStable · -9% CAGR over 3y
Location
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Computed from 4 filingsProvides cloud-based customer experience and contact centre software. Offers AI-powered tools for omnichannel customer engagement, automation, workforce engagement management, customer journey…
Serves mid-market and large enterprises and public sector organisations with contact centres, including banking, healthcare, retail, insurance and government teams.
Financial Health
StableStable · 0% CAGR over 3y
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Develops cloud-based data management software that enables organisations to integrate, catalogue, govern and monitor data across systems. Platform includes tools for data integration, data quality,…
Serves large enterprises and public-sector organisations, targeting chief data officers, IT data architects and application owners across finance, healthcare, government, retail, manufacturing,…
Financial Health
N/AN/A
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Computed from 4 filingsDevelops cybersecurity and fraud prevention software for enterprises, including zero‑trust authentication for employee access and transaction monitoring tools for banking applications. Provides the…
Serves enterprise and corporate buyers, including financial services, banks, telecoms, transportation, healthcare and manufacturing organisations that need cybersecurity and anti-fraud controls for…
Financial Health
WeakWeak · 0% CAGR over 3y
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Computed from 4 filingsDevelops digital transformation software and services for public sector organisations. Provides a platform with low‑code apps, workflow automation, API integration, data migration tools, eForms, and…
Serves UK public sector organisations, including NHS and healthcare providers, local authorities, housing bodies, police forces and education institutions, targeting teams responsible for digital…
Financial Health
StableStable · 0% CAGR over 3y
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Computed from 5 filingsDevelops CRM and workflow software for financial advisers, mortgage brokers and FCA‑regulated firms. Platform supports client onboarding, case management, annual reviews and compliance oversight,…
Serves B2B financial advice firms in the UK, including IFAs, mortgage and insurance brokers, AR firms, FCA-regulated practices, adviser networks and consolidators, with users across compliance,…
Financial Health
StableStable · Hiring · 52% CAGR over 5y
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Computed from 3 filingsProvides data collection and software systems for local authorities and schools to monitor attendance, attainment and personal education plans for looked‑after and vulnerable children, including…
Serves UK local authorities, virtual schools, education services, social services and children’s services departments, plus designated teachers and social workers responsible for looked-after and…
Financial Health
HealthyHealthy · -3% CAGR over 2y
Location
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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
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Computed from 4 filingsProvides cloud-based software for managing authorised signatory lists, bank mandates and authorised trader records. The platform digitises approval authorities, maintains audit trails, and enables…
Sells to businesses, especially large global enterprises, serving company secretariat, corporate treasury, trading and compliance teams that manage authorised signatories, bank mandates and trader…
Financial Health
StableStable · Hiring · 28% CAGR over 3y
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Computed from 5 filingsProvides online age verification and age assurance software for websites and digital services. The platform verifies users’ ages using multiple data sources to help businesses selling age‑restricted…
Sells to online businesses offering age-restricted products, services or content, including gambling operators, e-commerce retailers, pharmaceutical providers, charities and adult-content platforms…
Financial Health
StableStable · Hiring · 6% CAGR over 4y
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Computed from 5 filingsDevelops software for automated threat modelling in application development. The platform analyses system designs, identifies potential security threats, and recommends mitigations, with AI…
Serves B2B and public-sector organisations building software, especially regulated sectors such as financial services, medical devices, operational technology and technology, targeting security…
Financial Health
StableStable · -56% CAGR over 4y
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Develops a cyber resilience training and simulation platform that provides hands-on cybersecurity labs, cyber‑attack simulations, and crisis exercises. Enables organisations to test incident…
Serves enterprise CISOs, security teams, developers and executives needing cyber resilience readiness, including sectors such as financial services, operational technology and organisations managing…
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Computed from 5 filingsProvides cloud-based talent acquisition software used by organisations to manage recruitment processes, including job posting, applicant tracking, candidate screening, interview scheduling, offer…
Serves mid-size and enterprise employers, targeting HR, talent acquisition, hiring, IT and finance teams with corporate, high-volume and professional hiring needs across sectors including healthcare,…
Financial Health
StrongStrong · Hiring · 43% CAGR over 4y
Location
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Computed from 2 filingsProvides cloud-based working capital management software that helps businesses manage payables, receivables and inventory. Offers supply chain finance, dynamic discounting, virtual card payments and…
Serves large enterprises and their treasury, procurement and finance teams, plus their supplier networks, with a focus on industries including energy, retail, consumer goods, and aerospace and…
Financial Health
StrongStrong · Growing, Hiring · 13% CAGR over 1y
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Computed from 5 filingsDevelops cloud-based HR and health and safety management software for businesses. Platform includes modules for absence tracking, recruitment and onboarding, document management, risk assessments,…
Serves businesses and organisations with employees, targeting HR, operations and health & safety teams managing workforce, compliance, safety and contractor responsibilities.
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
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Computed from 5 filingsProvides a cloud-based collaboration platform that enables organisations to create secure online workspaces for teams and external partners, with tools for document management, task tracking,…
Serves B2B and public sector organisations, including enterprises, not-for-profits and government bodies. Targets teams managing cross-organisation projects, stakeholder collaboration, client portals…
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 4y
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Computed from 2 filingsDevelops data integration and streaming software that captures, processes and delivers real-time data between databases, applications and cloud platforms. Provides tools for building data pipelines,…
Serves B2B data, analytics and IT teams at enterprises in financial services, retail/CPG, healthcare, travel/logistics, aviation, manufacturing, energy, telecoms, technology and media.
Financial Health
StrongStrong · Hiring · 71% CAGR over 1y
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Computed from 2 filingsProvides software platforms for universities that support student engagement, careers services, employability programmes, disability and wellbeing case management. Offers tools for job postings,…
Sells to higher education institutions, primarily universities in the UK, Europe and worldwide, targeting careers, employability, student services, disability, wellbeing and conduct teams that…
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HealthyHealthy · 0% CAGR over 1y
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Computed from 5 filingsDevelops AI-powered risk intelligence software that ingests and analyses global multilingual data to identify threats, resolve identities, detect relationships, and support supply chain risk…
Serves national defense and law enforcement agencies, global enterprises and FinTech firms, targeting analysts, security, compliance and risk teams managing identity, threat, vendor and supply-chain…
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StrongStrong · Hiring · 11% CAGR over 4y
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Computed from 4 filingsDevelops digital assessment software used by regulated organisations to identify financially vulnerable customers or those lacking mental capacity. Platform provides online questionnaires, reporting,…
Sells to regulated organisations, especially FCA-regulated financial services firms such as wealth and advice, consumer finance and automotive finance providers, plus health and social care…
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WeakWeak · 0% CAGR over 3y
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Computed from 3 filingsDevelops workforce, job and contract management software for utilities and contractors. Platform includes scheduling, mobile field apps, HSEQ and compliance tools, logistics management, data…
Serves utilities sector organisations across the UK and Ireland, including water, power, gas and telecoms asset owners, tier-one contractors, and tier 2/3 subcontractors of varying sizes.
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WeakWeak · -91% CAGR over 2y
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Computed from 3 filingsProvides call tracking and conversation analytics software that analyses phone interactions to link calls with marketing campaigns, monitor agent performance, and generate data for sales, customer…
Serves B2B marketing, sales, contact centre, customer service and compliance teams in sectors including automotive, financial services, healthcare, insurance, property, retail, travel and utilities.
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StableStable · 4% CAGR over 2y
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Computed from 5 filingsDevelops evidence‑based digital therapeutics and mobile applications for managing chronic conditions such as COPD, asthma, diabetes and heart disease. Platform provides remote rehabilitation,…
Serves healthcare providers, NHS clinical teams and rehabilitation services managing patients with long-term conditions such as COPD, asthma, diabetes and heart disease, with patients as end users.
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StableStable · Hiring · 7% CAGR over 4y
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Provides cloud-based repository software for academic institutions, publishers, funders and researchers to store, manage and share research outputs such as datasets, papers and media, with metadata,…
Serves B2B and public-sector research stakeholders: academic institutions, government agencies, funders, nonprofits, publishers, pharmaceutical companies and medical affairs teams, as well as…
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Computed from 2 filingsDevelops waste management operational software for local authorities and environmental service contractors, including route planning, mobile in‑cab tools, fleet telematics, analytics dashboards,…
Serves UK local authorities, public-sector contractors and waste service providers responsible for municipal, commercial and environmental services, including teams managing collections, fleets,…
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WeakWeak · 0% CAGR over 1y
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Computed from 3 filingsDevelops a smartphone-based emergency response platform used by health, police and rescue services. Provides tools for alerting nearby trained responders, live video triage, volunteer coordination,…
Serves public-sector emergency and healthcare organisations, including ambulance/EMS, police and law enforcement, fire and rescue services, and health systems across the UK, Europe, North America,…
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WeakWeak · 0% CAGR over 2y
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Computed from 5 filingsDevelops communications and payment technology for businesses and contact centres. Provides cloud telephony platforms including PBX, IVR and SIP services, and payment processing tools enabling card,…
Serves B2B organisations and contact centres that handle customer communications and payments, including teams needing PCI-compliant payment processes, customer experience improvements, marketing…
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StableStable · Hiring · 4% CAGR over 4y
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Computed from 5 filingsDevelops and sells customer service software platforms that use AI to automate and support digital customer support. Products include chatbots, live chat messaging, knowledge base systems, and…
Sells B2B to customer service and contact centre teams at organisations needing digital CX tools, with named focus on energy, insurance and water providers, and broader use by brands supporting…
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WeakWeak · -10% CAGR over 4y
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Computed from 5 filingsDevelops biometric authentication software that enables passwordless login and multi-factor identity verification using facial recognition and device binding. Technology uses privacy-preserving…
Sells to banks, fintechs, cryptocurrency platforms, gaming companies, government agencies, retailers, healthcare providers and education organisations with customer and workforce authentication needs.
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StableStable · Hiring · 8% CAGR over 4y
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Computed from 3 filingsDevelops AI‑enabled software for procedure, workflow and resource management. Platform supports scheduling, manufacturing execution, testing, documentation, risk tracking and operational logging,…
Serves B2B and government teams running complex, regulated operations, including space and satellite operators, aerospace manufacturers, aviation/VTOL and flight-test teams, energy, oil and gas,…
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StableStable
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Computed from 4 filingsProvides cloud-based video hosting and streaming platform for businesses and media organizations. Tools support live and on‑demand delivery, video library management, player integration, analytics,…
Serves enterprises and media-led businesses, including broadcasters, publishers, media networks, entertainment firms, healthcare and pharma companies, retailers, tech companies and financial services…
Financial Health
WeakWeak · -3% CAGR over 3y
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Computed from 4 filingsProvides digital assessment software for educational institutions and certification bodies, including secure exam delivery, remote proctoring, identity verification, grading tools, and analytics to…
Serves educational institutions and assessment organizations, including higher education faculties, K-12 programs, and certification or licensure bodies such as bar associations, corporate training…
Financial Health
WeakWeak · Hiring · 5% CAGR over 3y
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Computed from 5 filingsProvides website monitoring and security software for eCommerce platforms. Offers synthetic customer journey testing, performance and uptime monitoring, third‑party script tracking, and tools to…
Serves B2B eCommerce brands and online retailers on Shopify, Magento, BigCommerce and custom platforms, plus agencies, enterprise, travel, gaming and public sector teams responsible for online…
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WeakWeak · -13% CAGR over 4y
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Computed from 3 filingsDevelops software tools for healthcare providers to identify patients with potential rare diseases earlier. Its MendelScan platform analyses clinical data to flag undiagnosed cases, support case…
Serves healthcare providers, clinicians and primary care organisations, including NHS settings, involved in rare disease diagnosis, genomic testing decisions and specialist patient referrals.
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WeakWeak · -7% CAGR over 2y
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Develops and operates a cloud-based online assessment platform that enables organisations and educators to create question banks, design and deliver quizzes, exams and recruitment tests, administer…
Serves education providers, edtech companies, subject matter experts, credentialing bodies and employers or recruiters that run online exams, practice tests, learning assessments and hiring…
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Computed from 3 filingsProvides cloud-based financial reporting and cash flow forecasting software for accountants and businesses. The platform generates management reports, dashboards, consolidated group reports, and…
Serves accounting firms and advisors, business owners and CFOs, franchise groups and enterprises, with industry focus on professional services, not-for-profits, real estate, e-commerce and…
Financial Health
StrongStrong · Hiring · 26% CAGR over 2y
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Computed from 5 filingsDevelops an online platform for schools and colleges to record and evidence learning and progress of pupils with special educational needs and disabilities (SEND). Also organises professional…
Serves schools and colleges supporting learners with SEND, targeting teachers, SENCOs, SEND leaders, senior school staff and wider teams involved in EHCPs, IEPs and learner progress.
Financial Health
StrongStrong · Growing, Hiring · 12% CAGR over 5y
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Computed from 5 filingsProvides software and consultancy for measuring, managing and reporting social value and ESG data. Platform captures, calculates and evidences social impact for procurement, bids and sustainability…
Serves B2B organisations and public-sector buyers involved in procurement, bidding, ESG and social value reporting, including construction, housing, digital, environmental services, facilities…
Financial Health
StableStable · Hiring · 11% CAGR over 4y
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Computed from 2 filingsDevelops online assessment software used by educational institutions and awarding bodies to create, deliver and grade digital exams. Provides secure exam browsers, remote proctoring, and originality…
Serves educational institutions and assessment bodies, including universities, higher education providers, K-12 schools and awarding organisations, with buyers such as assessment, exams and academic…
Financial Health
HealthyHealthy · Profitable · 8% CAGR over 1y
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Computed from 5 filingsProvides software tools for client due diligence and financial data analysis, including ID verification, source‑of‑funds checks, bank statement scanning, open banking data collection, and…
Serves B2B professional services firms, including law, accountancy, insolvency and compliance teams, that need client financial checks, AML evidence, source-of-funds reviews and affordability…
Financial Health
HealthyHealthy · Hiring · 36% CAGR over 4y
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Computed from 3 filingsDevelops and provides a marketing automation and customer data platform for B2C organisations. Software integrates customer data, builds audience segments, and manages multichannel campaigns…
Serves B2C marketing teams at ecommerce retailers, travel, hospitality and transport firms, sports clubs, car dealerships, charities, museums, attractions, and further or higher education providers.
Financial Health
StrongStrong
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Computed from 3 filingsProvides online professional development platform for schools including video lesson observation tools, instructional coaching frameworks, AI‑assisted analysis, and libraries of teaching techniques…
Serves schools, academies, multi-academy trusts and initial teacher training providers seeking professional development for teachers and instructional coaching teams, with customers among educators…
Financial Health
StableStable · -2% CAGR over 2y
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Develops and provides customer experience management software that integrates social media management, contact centre operations, marketing, customer service, and analytics, enabling businesses to…
Serves large businesses and public sector organisations, targeting marketing, customer service and CX teams in CPG, financial services, government, retail, technology, telecoms, and travel and…
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Buy this list of 219 companies
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How Amazon ELB 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.
Amazon ELB is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
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