SaaS Companies Using Smush in the UK: 57 Active Firms (2026)
SaaS businesses using website image optimisation sell cloud applications while maintaining performance-focused public sites in the UK.
For SaaS operators, image-optimisation tooling sits close to the demand-generation stack rather than the core application. It compresses and serves media across product pages, resource hubs and lead-capture journeys, so adoption tends to signal a web team that cares about page speed, organic acquisition and conversion friction. The buying centre is usually marketing operations, growth, or a small engineering-adjacent web function, with agency support common among leaner providers. It fits companies selling to business users through content-led acquisition, trials, demos or inbound enquiries, rather than firms that rely only on partner resale or private procurement routes.
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57 actively trading UK SaaS businesses are detected running this image-optimisation plugin, and reported employment across the cohort is 972 people. Within detected plugin use across SaaS sites, the system ranks third, with 12.7% of a 448-company comparison set. The registered-office skew is London at 24.6%, followed by the South East at 14.0%, the West Midlands at 12.3%, Scotland at 10.5% and the South West at 8.8%. That mix points to adoption among SaaS providers with content-led acquisition needs, rather than a purely infrastructure-led buyer base.
UK SaaS providers are not licensed as a single software category, so compliance depends on what the service does and which clients it serves. Website optimisation sits on the marketing stack, but it is often adjacent to analytics, forms, cookies and security controls; where personal data is processed, UK GDPR duties and ICO guidance apply. Procurement teams may also ask how media plugins, content management systems and hosting arrangements affect cyber risk and external processing. Cloud dependency adds a market-structure issue: the CMA has scrutinised UK public cloud infrastructure services and identified competition concerns, although that remains separate from any SaaS licensing regime.
Adoption appears likely to follow the wider shift from plug-in led website optimisation towards bundled performance, consent and security controls inside managed web platforms. SaaS marketers still need fast media-heavy pages for search and demo conversion, but lean teams tend to prefer tools that need little specialist maintenance. That favours consolidation around site-management suites and hosting arrangements, while leaving room for specialist image tooling where content libraries are large or legacy websites are difficult to rebuild. For this cohort, the main constraint is not appetite for page speed; it is the operational burden of keeping marketing technology patched, compliant and measurable.
Adoption by company size
Adoption of Smush 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 Smush (26 detected). 1.5% of the 1,886 companies with 10–50 employees run Smush (29 detected). 1.2% of the 166 companies with over 50 employees run Smush (2 detected). That is a 1.1% gap between the over 50 employees and under 10 employees bands.
57
Active firms
2026
12.7%
Of detected WordPress plugins share
UK SaaS
10
Median headcount
Filed accounts
147
Verified contacts
Across this cohort
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Key facts
About 5% of the trading cohort reports turnover above £5M (3 of 57 firms) — the rest sits below that revenue band.
5% of the cohort was incorporated since 2022 (3 firms), so a sizeable share is in its first few filing cycles.
Within SaaS firms with a detectable plugin system, the image-optimisation plugin ranks third at 12.7% (57 of 448).
Public-site stack co-occurrence is centred on measurement and search: 70.2% (40) also run analytics, 61.4% (35) run tag-management tooling and 59.6% (34) run search-optimisation tooling.
Edge delivery and bot checks also appear in the stack, with 54.4% (31) using an edge-network service and 47.4% (27) using bot-check tooling.
Registered offices are concentrated in London at 24.6% (14), followed by the South East at 14.0% (8), the West Midlands at 12.3% (7) and Scotland at 10.5% (6).
UK SaaS suppliers are not licensed as a single sector; regulatory exposure usually comes through UK GDPR, the Data Protection Act 2018, cyber security, contract law and customer-sector rules, with the ICO as the UK data-protection regulator.
WordPress plugins market share among UK SaaS
Share of the 448 UK SaaS with a detectable system. As of June 2026.
What else do Smush-running SaaS run?
Share of the 57 Smush-running UK companies where each technology was also detected. As of June 2026.
Where Smush 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.
10
Median headcount
£704.1K
Median UK turnover
5.3%
Above £5M turnover
3
Incorporated since 2022
147 verified decision-maker contacts
across these 57 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK SaaS using Smush
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
Financial sub-scores
Computed from 5 filingsProvides recruitment software that distributes job adverts to thousands of job boards, social media channels and search engines, and offers tools for candidate sourcing, résumé database search,…
Sells to B2B recruitment teams, including direct employers, in-house talent acquisition teams, and agency recruiters seeking to advertise roles, manage applicants, and optimise job board spend.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 5y
Location
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Computed from 4 filingsProvides a software platform for referral and reward marketing programmes. Enables businesses to run customer, employee, partner and influencer referral campaigns with tracking, automated reward…
Sells to enterprise brands in complex B2C and B2B markets, including telecoms, broadband, financial services, credit unions, insurance, energy, gaming, betting, lottery, and subscription TV or…
Financial Health
WeakWeak · 1% CAGR over 3y
Location
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Computed from 3 filingsDevelops cloud-based practice management software for healthcare clinics, providing appointment scheduling, online booking, patient records and clinical notes, intake forms, billing and income…
Serves B2B healthcare practices and clinics, including physiotherapy, podiatry, chiropractic, aesthetics, counselling, mental health, osteopathy, alternative medicine, multi-discipline clinics,…
Financial Health
WeakWeak · -5% CAGR over 2y
Location
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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…
Financial Health
WeakWeak · -10% CAGR over 4y
Location
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Computed from 3 filingsProvides digital conveyancing software for law firms, including a CRM platform and branded client mobile app. The system supports client onboarding, identity and source‑of‑funds checks, document…
Sells to B2B legal-sector customers, primarily law firms and residential conveyancing teams, with related messaging for housebuilders involved in property transactions.
Financial Health
WeakWeak · 0% CAGR over 2y
Location
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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 5 filingsDevelops cloud-based health and safety management software for workplaces. Provides tools and mobile apps for incident reporting, risk assessments, audits, inspections, action tracking, document…
Sells to B2B organisations managing workplace health and safety, especially safety, compliance and operations teams in construction, manufacturing, transport and logistics, entertainment and leisure,…
Financial Health
StrongStrong · Growing, Hiring · 18% 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 4 filingsDevelops recruitment software that uses AI and automation to help agencies source candidates, track job opportunities, and manage outreach. The platform aggregates data from multiple sourcing…
Sells B2B to recruitment agencies and recruiter teams worldwide, targeting agency owners, directors, consultants and sales teams responsible for candidate sourcing, vacancy tracking and placement…
Financial Health
StrongStrong · Hiring · 14% CAGR over 3y
Location
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Computed from 5 filingsProvides software and technology services for hotels, including central reservation systems, booking engines, global distribution system connectivity, channel management, and digital tools. Also…
Serves B2B customers in the hotel industry, including independent hotels, multi-property operators and hospitality teams seeking reservations, distribution and guest-experience technology worldwide.
Financial Health
HealthyHealthy · -4% CAGR over 4y
Location
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Provides a data intelligence platform for market research and B2B company analysis. Aggregates global data on companies and decision‑makers, offering tools for company discovery, financial…
Serves B2B organizations including corporates, banks, insurers, governments, dealers, agencies, consultants and system integrators, especially marketing, sales, procurement and M&A teams seeking…
Location
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Computed from 2 filingsProvides an online customer review management platform for businesses. Aggregates reviews from multiple sites, collects customer feedback, enables responses to reviews, and displays ratings in Google…
Serves B2B organisations that depend on customer reviews, including franchise networks, multi-location retailers, estate agents, children’s activity providers and agencies managing client reputation.
Financial Health
WeakWeak
Location
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Computed from 5 filingsProvides AI‑based document and invoice processing services, converting paper, PDF and electronic invoices into structured data. Offers e‑invoicing, data extraction, purchase‑to‑pay automation,…
Sells to businesses of all sizes needing accounts payable and purchase-to-pay automation, especially AP and finance teams. Serves a broad cross-industry B2B market, with particular traction in UK…
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 5 filingsDevelops a unified commerce and subscription billing software platform that manages customer identity, digital wallets, payments, promotions, subscriptions and B2B commerce, enabling businesses to…
Serves B2C and B2B companies with repeat-revenue models, including video and media operators, telecom and IoT providers, fintechs, energy companies, retailers and hospitality businesses.
Financial Health
StableStable
Location
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Computed from 5 filingsDevelops cloud‑based cybersecurity software for security operations, including SIEM, user and entity behaviour analytics (UEBA), security orchestration and automated response (SOAR), and threat…
Serves enterprise security operations teams and MSSPs, particularly in financial services, healthcare, manufacturing, supply chain, energy and utilities, with buyers responsible for cloud security,…
Financial Health
DistressedDistressed · -10% CAGR over 4y
Location
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Computed from 4 filingsProvides ticketing and customer relationship management software for festivals, theatres and live events. Platform supports online and box office ticket sales, mobile access control and scanning,…
Serves B2B and public-sector organisations in arts, culture and live events, including festivals, theatres, arts centres, exhibitions, attractions, venues, government bodies and councils.
Financial Health
StableStable · -15% CAGR over 3y
Location
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Computed from 2 filingsDevelops cloud-based no‑code software for construction and industrial companies to digitise site paperwork and operational processes, including safety management, quality tracking, field reporting,…
Serves B2B industrial and built-environment companies, including construction, engineering, infrastructure and asset-intensive firms with field, safety, quality, fleet, project delivery and…
Financial Health
StrongStrong · Growing, Hiring · 91% CAGR over 1y
Location
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Computed from 5 filingsDevelops hospitality management software including ePOS and mobile POS systems, order-and-pay solutions, workforce and labour management tools, payroll processing, and data platforms for revenue…
Serves B2B hospitality operators, including restaurants, bars, pubs and multi-venue groups, particularly managers responsible for workforce, revenue, payroll, ordering and venue operations.
Financial Health
StrongStrong · Hiring · 12% CAGR over 4y
Location
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Computed from 4 filingsDevelops digital software for NHS organisations, including GP practice websites, patient flow management dashboards and healthcare apps that enable online appointment requests, patient communication,…
Serves NHS healthcare organisations, especially GP practices and primary care teams, plus secondary care providers, practice managers, administrators and NHS staff.
Financial Health
StableStable · Hiring · 138% CAGR over 3y
Location
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Computed from 5 filingsProvides document management software for businesses, enabling digital storage, indexing and retrieval of documents. Features include OCR data capture, automated workflows, secure access controls,…
Serves SMEs and enterprise organisations, including hybrid-working teams, in sectors such as accountancy, construction, education, healthcare, HR, legal services and manufacturing.
Financial Health
StableStable · -6% CAGR over 4y
Location
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Computed from 5 filingsDevelops software asset management tools that discover and monitor applications across cloud and on‑premise environments. Provides SaaS and software licence management, cost tracking, usage…
Sells to enterprise IT organisations managing hybrid and cloud software estates, including buyers responsible for software asset management, licensing, compliance, cost control and IT security.
Financial Health
StableStable · Hiring · 101% CAGR over 4y
Location
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Computed from 5 filingsDevelops and provides EOSONE, an online platform for training providers that combines e‑portfolio, learning management, compliance reporting and e‑learning content. Also supplies functional skills…
Serves independent training providers and employer providers delivering funded training, including apprenticeship and Functional Skills teams responsible for learners, tutors, compliance and funding.
Financial Health
StrongStrong · Hiring · 26% CAGR over 4y
Location
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Computed from 5 filingsProvides cloud-based health and safety management software and mobile applications for compliance, incident reporting, risk assessments and asset tracking. Also delivers health and safety…
Serves SMEs and larger organisations across sectors, targeting employers, operations managers, HR teams and health and safety professionals responsible for employee safety, compliance and workforce…
Financial Health
StrongStrong
Location
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Computed from 5 filingsDevelops voice security and fraud detection software for contact centres and virtual meeting platforms. Provides tools for deepfake and synthetic voice detection, caller risk analysis, and…
Sells to enterprises operating contact centres and virtual meeting environments, particularly in banking, finance, insurance, healthcare and retail, plus technology platforms integrating voice…
Financial Health
HealthyHealthy · -70% CAGR over 4y
Location
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Computed from 4 filingsProvides software and data tools that help businesses manage and analyse employee business travel and mileage. Technology supports decision‑making on travel costs, carbon emissions, and regulatory…
Serves businesses globally that manage employee mobility, company cars, cash allowances, business mileage and electric vehicle fleets, including fleet, finance and travel teams responsible for…
Financial Health
HealthyHealthy
Location
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Computed from 2 filingsProvides regulatory reporting and compliance software and services for financial institutions, including trade and transaction reporting for regimes such as MiFID II, EMIR and SFTR, shareholding…
Serves financial services firms, from boutique asset managers to tier-one banks, especially compliance, regulatory reporting, surveillance and operations teams managing obligations across global…
Financial Health
WeakWeak · Hiring · 28% CAGR over 1y
Location
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Computed from 5 filingsDevelops AI‑based brand protection software that monitors websites, marketplaces, social media, and mobile apps to detect counterfeits, phishing, impersonation, and trademark infringement, and…
Serves B2B brand owners and enterprise legal, marketing, and brand protection teams facing online counterfeiting, phishing, impersonation, trademark infringement, marketplace abuse, and digital…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
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Computed from 5 filingsDevelops software for automotive logistics including vehicle delivery management systems, vehicle storage management and an automotive loadboard platform. Provides driver mobile apps, system…
Serves B2B customers in the automotive logistics sector, including vehicle delivery, vehicle storage, fleet and trade plate delivery companies, with emphasis on large UK vehicle delivery operators.
Financial Health
DistressedDistressed · 0% CAGR over 4y
Location
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Computed from 5 filingsDevelops software for the asset management industry that digitises and manages investment due diligence processes. Platform supports RFP and DDQ content management, data collection, manager research,…
Serves B2B customers in asset management: asset allocators and owners, manager research teams, operational due diligence, risk and compliance teams, fund managers, ManCos, consultants and service…
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
Location
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Computed from 5 filingsDevelops and provides digital engagement platforms that use gamification, behavioural insights and analytics to increase participation in customer loyalty, employee engagement, training and community…
Serves businesses, education providers, public sector and membership or nonprofit organisations seeking to engage customers, employees, partners, students, communities, alumni, volunteers, members…
Financial Health
StrongStrong · Hiring · 9% CAGR over 4y
Location
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Computed from 5 filingsProvides online learning and compliance software for the health and social care sector, including e‑learning courses, training management and reporting tools, policy libraries and clinical audit…
Serves care sector organisations, including care homes and care groups, that need staff training and compliance support across the UK and Ireland.
Financial Health
StableStable · Hiring · 7% CAGR over 4y
Location
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Computed from 5 filingsDevelops clinical software for collecting and reporting patient‑reported outcome measures (PROMs) and clinical outcomes. The platform supports patient management, integrates with electronic patient…
Serves NHS and private healthcare providers, hospitals, clinical departments, individual clinicians, registries, clinical societies and research or industry stakeholders in the UK, South Africa and…
Financial Health
StableStable · -68% CAGR over 4y
Location
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Computed from 3 filingsProvides cybersecurity software that uses deception techniques such as decoys and honeypots to detect attackers inside networks. Offers SaaS tools for threat intelligence, IP reputation monitoring,…
Serves B2B cybersecurity buyers, including security operations teams and IT leaders in finance, higher education and manufacturing, plus managed security providers and organisations with complex…
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 2y
Location
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Computed from 3 filingsProvides video‑based online training courses for the social care sector. Offers a library of over 150 courses covering care practices, compliance, and staff development, delivered through learning…
Serves UK social care organisations, including residential care homes and home care providers, as well as individual care workers purchasing single courses.
Financial Health
StableStable · -87% CAGR over 2y
Location
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Computed from 5 filingsDevelops membership management software for organisations such as alumni groups, societies and charities. Platform provides CRM database, subscription and payment processing, event management, email…
Sells to membership-based organisations on a B2B basis, particularly alumni groups, societies and charities, serving teams that manage member data, payments, communications and events.
Financial Health
StrongStrong · Growing, Hiring · 18% CAGR over 4y
Location
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Computed from 4 filingsDevelops data management and analytics technology for professional services firms, including an audit common data model and knowledge graph software used to structure financial and audit data and…
Serves B2B professional services organisations, particularly audit and accounting firms working with business and financial data for client engagements.
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
Location
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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
Location
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Computed from 5 filingsProvides impact measurement and reporting software and advisory services. Offers tools for collecting and verifying impact data, generating reports, and training organisations to manage, evaluate and…
Serves B2B and nonprofit customers, including higher education institutions, purpose-led businesses, philanthropies, funders, investors and grant-makers with teams responsible for impact measurement…
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 4y
Location
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Computed from 5 filingsDevelops virtual reality and augmented reality training software for laboratory and biopharma environments, including virtual lab courses, digital twins and simulations used by pharmaceutical…
Serves B2B and academic customers in life sciences, including pharma and biotech manufacturers, public and private laboratories, academic and research institutions, equipment vendors, educators, and…
Financial Health
StrongStrong · Hiring · 14% CAGR over 4y
Location
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Computed from 5 filingsDevelops decision intelligence software that integrates datasets, analytics, simulations and digital twins to support place‑based planning and infrastructure decisions. Platform connects and…
Serves local authorities, public-sector bodies and infrastructure or regeneration partners making place-based decisions on climate adaptation, net zero mobility, air quality, transport, carbon and…
Financial Health
StableStable · -5% CAGR over 4y
Location
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Computed from 5 filingsDevelops software and data services for the film and cinema industry, including online ticketing systems, cinema websites and mobile apps, movie showtime databases, box office analytics for studios,…
Serves B2B customers in the entertainment industry, including cinema operators, movie studios, digital platforms using movie data, and brands targeting moviegoers and film professionals across…
Financial Health
WeakWeak · -8% CAGR over 4y
Location
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Computed from 5 filingsDevelops customer loyalty and data analytics software for automotive manufacturers and dealers. Platform uses dealer management system (DMS) data to run targeted marketing campaigns, manage sales and…
Serves B2B automotive organisations, including manufacturers, importers, dealer groups and retailers, with buyers in retention, sales, aftersales, service and parts operations using DMS customer data.
Financial Health
WeakWeak · -6% CAGR over 4y
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Computed from 5 filingsDevelops a digital career development platform and employability tools that help students and jobseekers explore careers, build CVs and access opportunities. Provides employer engagement systems,…
Serves students and jobseekers, plus schools, colleges, training providers, career advisers, employers from SMEs to FTSE 100 firms, and government employability initiatives seeking to engage emerging…
Financial Health
WeakWeak · -2% CAGR over 5y
Location
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Computed from 3 filingsDevelops education technology software for schools that analyses curriculum‑linked assessment data to identify learning gaps. Provides visual analytics, automated marking, bespoke assessments, and…
Serves primary and secondary schools, targeting teachers, senior leaders and school administrators responsible for assessment, curriculum data and student progress in Maths, English and Science.
Financial Health
WeakWeak · Hiring · 91% CAGR over 2y
Location
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Computed from 5 filingsDevelops software systems for wholesalers, distributors and importers, including sales representative ordering apps, web trade ordering platforms, buying trip management tools and cloud connectors…
Serves B2B importers, distributors and wholesalers, particularly sales teams, sales reps and buyers in sectors such as fashion, garden, home and gift, and jewellery.
Financial Health
WeakWeak · -10% CAGR over 4y
Location
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Develops and provides cloud-based software for financial institutions supporting electronic trading, order and execution management, portfolio management, and real-time risk analysis. Platform…
Sells to financial institutions on both the buy side and sell side, including asset managers, alternative asset managers, asset owners, wealth managers, prime brokers, private banks, risk teams and…
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Computed from 3 filingsDevelops software systems for wholesalers, importers, distributors, and sales representatives, including mobile sales order apps, B2B web ordering platforms, buying management tools, and cloud…
Serves B2B importers, distributors and wholesalers, especially sales teams, sales reps and buyers in sectors such as fashion, garden, home and gift, and jewellery.
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 4 filingsDesigns and implements freight management software for transport and logistics operators. Provides modular systems for air, sea, road and rail freight covering operations management, documentation,…
Serves B2B transport and freight operators with 20+ users, including air, sea, road and rail logistics businesses shipping goods domestically, across Europe and globally.
Financial Health
StrongStrong · -1% CAGR over 3y
Location
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Computed from 3 filingsDevelops and provides cloud-based business intelligence software for railway infrastructure projects, enabling cost estimation, scenario comparison, lifecycle cost modelling, data integration, and…
Serves railway infrastructure managers, rail project sponsors and programme teams in the rail sector, including large infrastructure owners such as Network Rail.
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 2y
Location
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Computed from 5 filingsDevelops software for the automotive logistics sector, including vehicle delivery and vehicle storage management systems, driver mobile applications, electronic proof‑of‑delivery tools, and…
Sells to UK automotive logistics businesses, including vehicle delivery, fleet, trade plate, transport and storage operators, from large delivery companies to logistics teams.
Financial Health
StrongStrong · Hiring · 16% CAGR over 4y
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How Smush 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.
Smush 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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