SaaS Companies Using Greenhouse in the UK: 86 Active Firms (2026)
SaaS adopters of hiring software sell subscription cloud applications while operating UK websites that show structured recruitment workflows.
Dedicated hiring platforms sit between the careers site, interview workflow and applicant database. For UK SaaS adopters, the system is usually bought by people, talent and operations teams rather than engineering alone, although product and security stakeholders often shape procurement because candidate information moves through cloud systems. Adoption tends to signal a business with repeat role creation, direct sourcing, interview calibration and a need to co-ordinate hiring managers across sales, engineering, customer success and support. Engagements are usually subscription contracts with admin, careers-page and reporting requirements, not one-off recruitment agency spend.
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There are 86 actively trading UK SaaS companies running this hiring platform. Within SaaS recruitment-and-staffing technology adoption, it sits third at 14.7% of a Recruitment & staffing denominator of 584 detected adoptions. The regional skew is clear: London accounts for 52.3% of adopters, followed by the South East at 16.3% and the North West at 9.3%; the South West and East of England are smaller clusters at 4.7% and 3.5%. Reported headcount across the cohort totals 2,764, giving the group a visible, if still scale-up-weighted, employment footprint.
UK SaaS suppliers are not generally licensed as a single sector, so regulatory exposure tends to follow the function of the software and the clients served. Candidate, employee and customer information brings the ICO, UK GDPR and the Data Protection Act 2018 into view, particularly where hiring workflows connect to analytics, identity, communications or cloud-hosting systems. Cloud dependency also has a competition-policy angle: the CMA closed its public cloud infrastructure services investigation on 31 July 2025 after finding an adverse effect on competition and recommending remedies, including strategic market status work on two large infrastructure providers.
Adoption appears likely to remain tied to hiring cadence rather than company age alone. Among SaaS providers, dedicated applicant-tracking tools tend to arrive when founders can no longer run hiring through inboxes, spreadsheets and recruiter notes, but before a full human-capital suite becomes unavoidable. Privacy reviews, security questionnaires and customer due diligence are likely to keep procurement fairly formal, especially where clients are regulated. The category also looks exposed to bundling pressure from wider people-systems vendors, so specialist platforms may need to defend workflow depth, integrations and candidate-experience controls rather than rely on brand preference.
What’s in the file
One row per company, 14 columns. The contact columns unlock when you get the list.
Included
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Adoption by company size
Adoption of Greenhouse rises with company size across the trading UK SaaS companies in this cohort. 0.1% of the 37,913 companies with under 10 employees run Greenhouse (56 detected). 1.2% of the 1,886 companies with 10–50 employees run Greenhouse (23 detected). 4.2% of the 166 companies with over 50 employees run Greenhouse (7 detected). That is a 4.1% gap between the over 50 employees and under 10 employees bands.
86
Active firms
2026
14.7%
Of detected Recruitment & staffing share
UK SaaS
6
Median headcount
Filed accounts
211
Verified contacts
Across this cohort
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Key facts
About 20% of the trading cohort reports turnover above £5M (18 of 86 firms) — the rest sits below that revenue band.
17% of the cohort was incorporated since 2022 (15 firms), so a sizeable share is in its first few filing cycles.
Within SaaS firms with a detectable recruitment and staffing system, this system sits third by detected share at 14.7% (86) out of a 584-company denominator; the two systems ahead are at 16.4% (96) and 14.9% (87).
London accounts for 52.3% (45) of SaaS firms running this recruitment system, followed by the South East at 16.3% (14) and the North West at 9.3% (8).
The surrounding web stack points to structured commercial operations: 77.9% (67) also run a tag-management tool, 75.6% (65) use a content-delivery and security layer, and 45.3% (39) show public-cloud infrastructure.
UK SaaS suppliers are not generally licensed as a single sector; exposure tends to come through the ICO, UK GDPR, the Data Protection Act 2018, cyber security, consumer/contract law and client-sector rules.
Cloud dependency remains under competition scrutiny: the CMA closed its UK public-cloud infrastructure case on 31 July 2025 and reported an adverse effect on competition leading to remedies.
Recruitment market share among UK SaaS
Share of the 584 UK SaaS with a detectable system. As of June 2026.
What else do Greenhouse-running SaaS run?
Share of the 86 Greenhouse-running UK companies where each technology was also detected. As of June 2026.
Where Greenhouse 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.
6
Median headcount
£1.2M
Median UK turnover
20.9%
Above £5M turnover
15
Incorporated since 2022
211 verified decision-maker contacts
across these 175 companies — names, roles and emails, in one CSV + Excel file.
Top UK SaaS using Greenhouse
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.
Provides software platform for financial institutions that automates data ingestion, extraction, transformation and validation across capital markets operations, supporting processes such as trade…
Sells to capital markets firms and financial institutions, including banks, asset managers, custodians, hedge funds and securities services providers, particularly operations, regulatory reporting…
Location
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Financial sub-scores
Computed from 3 filingsDevelops blockchain intelligence software used by financial institutions, crypto businesses and law enforcement to monitor cryptocurrency transactions, screen wallets, detect fraud and sanctions…
Serves government agencies, law enforcement, national security teams, regulators, tax authorities, financial institutions, fintechs and crypto businesses involved with digital assets.
Financial Health
StrongStrong
Location
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Computed from 5 filingsDevelops enterprise software for commercial and specialty insurers to manage underwriting operations. Provides a SaaS platform that connects underwriting data, workflows, pricing, and submissions,…
Sells to commercial and specialty insurance organisations, including Tier 1 and Tier 2 carriers, MGAs, reinsurers, Lloyd’s syndicates, and London market insurers managing complex underwriting…
Financial Health
HealthyHealthy · -43% CAGR over 4y
Location
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Computed from 5 filingsProvides cloud-based software for managing organisational risk, compliance, and safety activities, including health and safety, fire safety, environmental management, incident reporting, supplier…
Serves B2B organisations managing property, buildings and built-environment assets, targeting managers and teams responsible for risk, compliance, health and safety, fire safety, environmental and…
Financial Health
StableStable · Hiring · 25% CAGR over 4y
Location
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Financial sub-scores
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 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…
Financial Health
StrongStrong · Hiring · 11% CAGR over 4y
Location
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Computed from 5 filingsProvides a software platform for third‑party risk management that maps supply chains, collects and centralises supplier security assessments, identifies concentration and cyber risks, and enables…
Serves B2B and public sector organisations managing third-party and supply chain cyber risk, with emphasis on critical national infrastructure, financial services, insurance and technology teams.
Financial Health
StableStable · Hiring · 45% 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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Financial sub-scores
Computed from 3 filingsProvides digital identity verification and authentication technology for businesses. Offers APIs and platforms for consumer onboarding, identity proofing, fraud prevention, and returning‑user…
Sells to enterprises and digital businesses needing consumer identity verification, including banks, fintech lenders, cryptocurrency platforms, healthcare providers, insurers, marketplaces, merchants…
Financial Health
HealthyHealthy · -5% CAGR over 2y
Location
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Financial sub-scores
Computed from 2 filingsDevelops and provides identity and access management software for enterprises, including authentication, single sign-on, identity governance, and security tools that manage user identities and…
Serves large enterprises and digital organizations, selling to IT, security and identity teams responsible for user access, identity security and digital interactions across complex technology…
Financial Health
HealthyHealthy · Hiring · 21% CAGR over 1y
Location
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Computed from 3 filingsDevelops a cloud-based digital commerce platform for enterprises. Provides APIs and tools for building and managing B2C, B2B and direct‑to‑consumer online stores, including product catalogues,…
Serves enterprise B2C, B2B and D2C commerce teams across retail, fashion, food and grocery, telecoms, automotive, healthcare, wholesale, electronics and media sectors.
Financial Health
StableStable · Hiring · 36% CAGR over 2y
Location
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Computed from 2 filingsDevelops an AI-based automation platform that processes and analyses unstructured documents such as emails, scans, spreadsheets, and images, extracting data and applying business rules to support…
Sells to large enterprises and public sector organisations with document-heavy operations, especially teams in financial services, insurance, healthcare, and government seeking automation at scale.
Financial Health
DistressedDistressed · -5% CAGR over 1y
Location
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Computed from 5 filingsProvides cloud-based call recording and voice data capture from telecommunications networks and communication platforms such as Microsoft Teams, Zoom and Cisco Webex. Uses AI to analyse…
Serves enterprises and public sector organisations in regulated sectors, including finance, government, retail, healthcare, automotive and payments, as well as telecoms, unified communications and…
Financial Health
DistressedDistressed · -60% CAGR over 4y
Location
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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.
Financial Health
StableStable · Hiring · 8% CAGR over 4y
Location
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Provides cloud-based financial data management and operational software for the investment industry, including data integration, reconciliation, treasury and post‑investment processing tools.…
Serves investment-industry firms, including hedge funds and institutional asset managers, targeting operations, data, treasury, and technology teams managing complex investment data and…
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Computed from 5 filingsProvides cloud-based HR and payroll platform enabling companies to hire, pay, and manage employees and contractors internationally. Offers employer-of-record services, global payroll, compliance…
Serves businesses with international or distributed workforces, especially HR and people teams hiring employees or contractors across multiple countries, plus partners needing global hiring…
Financial Health
StrongStrong · Hiring · 101% CAGR over 4y
Location
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Computed from 5 filingsDevelops open-source observability and monitoring software used to collect, visualise and analyse metrics, logs and traces from applications and infrastructure. Provides a cloud platform, plugins and…
Serves B2B engineering, DevOps, SRE and IT operations teams in software-driven organisations, including users of Kubernetes, cloud infrastructure, databases and applications who need observability…
Financial Health
StrongStrong · Growing, Hiring · 64% CAGR over 4y
Location
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Computed from 5 filingsDevelops cloud software for supply chain management that tracks shipments, integrates carrier data, stores documents, and provides alerts, maps, and AI-generated reports. The platform enables teams…
Serves B2B supply chain and logistics teams at importers, shippers and freight forwarders managing purchase orders, containers, carrier relationships, and customer shipment updates.
Financial Health
StrongStrong · Hiring · 27% CAGR over 4y
Location
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Computed from 3 filingsProvides cloud-based human resources software for managing employee performance, engagement, goals and compensation. Platform includes performance reviews, surveys, analytics, OKR tracking and AI…
Serves B2B HR and people operations teams, managers and executives at companies seeking support for employee performance, engagement, compensation and workforce analytics.
Financial Health
StrongStrong · Hiring · 123% CAGR over 2y
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 3 filingsProvides a cloud-based application security and risk management platform that scans software for vulnerabilities across the development lifecycle, including static and dynamic testing, open‑source…
Serves B2B software and security teams, from startups to Fortune 500 enterprises, targeting CISOs, AppSec leaders, developers and security teams in financial services, public sector, healthcare,…
Financial Health
StableStable · Profitable · -7% CAGR over 2y
Location
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Computed from 3 filingsDevelops banking software platforms used by financial institutions to manage product pricing, billing, and deal lifecycles. Provides data and analytics tools, product catalogues, rates and fees…
Serves financial institutions worldwide, including retail and corporate banks and credit unions. Targets banking leadership and teams in data, IT, marketing, risk, compliance, product, pricing and…
Financial Health
StableStable · -91% CAGR over 2y
Location
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Computed from 3 filingsDevelops network visibility and security software that analyses network traffic to detect threats, support incident investigation, and monitor performance. Provides network detection and response,…
Serves enterprise IT security, SOC and network operations teams in education, defence and intelligence, financial services, healthcare, retail, and public sector organisations.
Financial Health
StableStable · 2% CAGR over 2y
Location
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Computed from 5 filingsProvides managed DNS infrastructure and cloud‑based security services, including authoritative DNS, DDoS mitigation, web application firewall, bot management and API protection, helping organisations…
Serves businesses of all sizes with online operations, particularly eCommerce, financial services, healthcare, gaming and gambling, registry/registrar, telecoms, and travel organisations.
Financial Health
StableStable · -4% CAGR over 5y
Location
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Provides a spend management platform that links corporate credit cards with software for tracking expenses, collecting receipts, processing invoices, and reconciling transactions. Includes budgeting…
Sells to finance teams, CFOs and operations leaders at businesses managing corporate card spend, expenses, invoices and multi-entity or cross-border operations, with integrations for ERP, HRIS and…
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Computed from 2 filingsProvides a cybersecurity platform for continuous penetration testing and vulnerability discovery, combining AI-driven tools with a vetted network of security researchers to test applications, cloud…
Serves enterprise security teams and technology leaders in financial services, public sector, retail/eCommerce and technology companies, plus channel partners such as resellers, integrators, SOC…
Financial Health
StableStable · 4% CAGR over 1y
Location
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Computed from 3 filingsDevelops cloud-based ediscovery software for legal teams. The platform uses AI and analytics to upload, search, review and analyse large volumes of documents for litigation, investigations, early…
Serves legal teams at law firms, corporations and public sector agencies, particularly those handling litigation, investigations and edisclosure in the UK.
Financial Health
DistressedDistressed · -21% CAGR over 2y
Location
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Computed from 2 filingsProvides digital bill payment software enabling organisations to collect payments via SMS, email, QR codes, and web widgets. Allows consumers to pay bills by scanning paper statements or uploading…
Serves B2B bill issuers, including healthcare practices, billing companies, utilities, insurers, debt collectors, field service firms, and government or municipal bodies seeking consumer payment…
Financial Health
StableStable · Hiring · 12% CAGR over 1y
Location
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Computed from 4 filingsProvides software and services for managing international workforces, including global payroll processing, employer‑of‑record employment, contractor onboarding and payments, HR information…
Serves startups, mid-market companies and enterprises with distributed or international workforces, targeting HR, payroll, recruiting and operations teams hiring employees and contractors across…
Financial Health
StrongStrong · Hiring · 38% CAGR over 3y
Location
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Computed from 3 filingsDevelops a digital analytics platform that collects and analyzes user behaviour data from websites and apps, providing product analytics, session replay, heatmaps, A/B testing, and experimentation…
Serves product, data, engineering, marketing and executive teams at startups and enterprises, including financial services, B2B, media, healthcare and ecommerce organisations.
Financial Health
StrongStrong · Hiring · 32% CAGR over 2y
Location
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Develops and provides AI-based cybersecurity software that monitors networks, cloud environments, email, identities and endpoints to detect, investigate and autonomously respond to cyber threats such…
Serves B2B and public-sector organizations of all sizes, particularly CISOs, cybersecurity professionals and SOC teams responsible for enterprise cloud, email, network, OT, identity and endpoint…
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Provides a cloud-based content management and digital experience platform. Enables teams to create, manage and deliver modular content across websites, apps and channels, with tools for…
Serves enterprise and mid-market businesses with marketing, content, web and product teams managing multi-channel, multi-brand digital experiences, including ecommerce and global websites.
Financial Health
N/AN/A
Location
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Develops identity and access management software for enterprises. Provides a platform for authentication, single sign‑on, identity governance, API security, and user access control to secure digital…
Sells to large enterprises and digital organisations, targeting IT, security and identity teams responsible for customer, workforce and partner access across complex technology ecosystems.
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Computed from 3 filingsDevelops governance, risk and compliance (GRC) management software. Provides a cloud platform for risk assessment, policy management, regulatory compliance, audit workflows and reporting, integrating…
Serves enterprise risk, cybersecurity, compliance and audit teams in financial services, insurance, retail, healthcare, manufacturing, technology, telecoms, energy, utilities and business services.
Financial Health
StrongStrong
Location
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Computed from 5 filingsDevelops online task‑based psychometric assessments used in recruitment to evaluate candidates’ skills, personality and learning agility. The platform collects behavioural data from interactive tasks…
Sells to talent acquisition teams, recruiters and HR leaders at employers, including organisations running CV-less, skills-based or high-volume hiring processes for job vacancies.
Financial Health
DistressedDistressed · -14% CAGR over 4y
Location
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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
Location
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Computed from 3 filingsDevelops portfolio management and data aggregation software for investment professionals. The platform consolidates data from multiple financial accounts and assets, providing analytics, reporting…
Sells to investment professionals at wealth managers, family offices, private banks and institutional investors, including teams managing complex portfolios. Targets financial services organisations…
Financial Health
StrongStrong · Profitable, Growing, Hiring · 86% CAGR over 2y
Location
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Computed from 3 filingsDevelops software for managed service providers and IT departments, including remote monitoring and management (RMM), professional services automation (PSA), remote access, cybersecurity, backup, and…
Targets MSPs and other B2B IT service organisations, including IT departments, managed print providers, VARs and security leaders responsible for service delivery, endpoints, remote support, backup…
Financial Health
StrongStrong · Profitable, Growing, Hiring · 7% CAGR over 2y
Location
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Computed from 5 filingsProvides a software platform for product analytics and user experience management. Tracks user interactions in applications, with features including session replay, in‑app guides, feedback…
Serves B2B product, engineering, marketing and customer success teams at software-led companies managing web/mobile apps and AI agents across digital product portfolios.
Financial Health
StrongStrong · Hiring · 30% CAGR over 4y
Location
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Computed from 2 filingsDevelops and sells software for managing, protecting and governing cloud collaboration platforms, particularly Microsoft 365 and SharePoint. Products include SaaS backup, data security, migration,…
Serves organisations using Microsoft, Google and Salesforce SaaS platforms, including public sector, education, financial services, energy, manufacturing, professional services and retail, plus MSPs,…
Financial Health
HealthyHealthy · Hiring · 13% CAGR over 1y
Location
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Computed from 5 filingsDevelops a cloud backup and recovery platform that manages and stores backups across AWS, Azure and Google Cloud. Provides searchable backup storage, ransomware protection, compliance monitoring, and…
Serves enterprise B2B customers running cloud workloads on AWS, Azure and Google Cloud, especially IT, cloud infrastructure, security and data teams needing backup, recovery, compliance and data…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
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Computed from 3 filingsProvides a software platform and services for managing employee international mobility. Supports visa and immigration applications, relocations, residence renewals, and compliance for business travel…
Serves B2B HR, talent acquisition and global mobility teams at companies managing international hiring, employee relocations, work permits, business trips and work-from-anywhere compliance.
Financial Health
StableStable · Hiring · 20% CAGR over 2y
Location
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Computed from 5 filingsDevelops psychometric and skills assessment tools used by employers to evaluate candidates and employees. Provides online personality, cognitive ability and motivation tests, video interview…
Serves businesses and HR professionals responsible for recruitment, career management, team cohesion and employee development, including organisations using ATS/HRIS platforms.
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 4y
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Computed from 5 filingsProvides cloud-based document and email management software for law firms and in-house legal teams. Platform supports document storage, search, collaboration, workflow automation, security controls,…
Serves legal professionals in small, midsize and large law firms, in-house legal departments, and public sector legal teams, including federal, state, local government and higher education…
Financial Health
StrongStrong · Hiring · 22% CAGR over 5y
Location
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Computed from 5 filingsDevelops climate risk data and analytics software for financial institutions and asset managers. Provides tools that model physical climate hazards, estimate financial loss at asset and portfolio…
Serves banks, asset managers, insurers, real estate investors and consultancies needing portfolio and asset-level climate risk analysis for investment, lending, insurance and regulatory workflows.
Financial Health
StableStable · Hiring · 97% CAGR over 4y
Location
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Develops AI software for in-house legal teams that automates contract review, document drafting, legal research, and workflow management. Platform integrates with business tools to manage legal…
Serves in-house legal teams at small businesses, mid-market companies and enterprises, with adjacent users in commercial, HR, sales and finance teams needing governed access to legal workflows.
Financial Health
N/AN/A
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Computed from 2 filingsProvides a software platform for managing partnership marketing programmes, enabling brands to recruit and manage affiliates, influencers and referral partners, track performance and attribution,…
Serves B2B marketing, partnerships and ecommerce teams at brands, retailers, SaaS companies, app businesses and publishers, plus agencies working with affiliate, influencer, creator and referral…
Financial Health
HealthyHealthy · -75% CAGR over 1y
Location
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Computed from 3 filingsDevelops and provides a real-time distributed database platform for high‑throughput, low‑latency data processing. The software supports AI applications and data‑intensive systems, enabling scalable…
Serves enterprise developers, data and AI leaders, and business leaders at large-scale digital businesses, including AI, adtech, ecommerce, fraud prevention and technology companies.
Financial Health
HealthyHealthy · -7% CAGR over 2y
Location
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Computed from 3 filingsProvides managed detection and response cybersecurity services, including 24/7 security monitoring, threat detection, investigation, and incident response. Develops a security operations platform…
Serves B2B security teams and SOC leaders at organizations of any size across industries, including those operating cloud, email, endpoint, identity, network and SaaS environments.
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 2y
Location
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Develops AI software for finance professionals that analyses company filings, earnings transcripts and market data to generate cited research, screening results and automated reports for investment…
Serves B2B finance professionals, especially investment analysts and teams at asset managers, investment banks, private credit firms and hedge funds conducting equity, credit, earnings and industry…
Financial Health
N/AN/A
Location
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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.
Greenhouse 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
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