IT Services Companies Using Cloudflare in the UK: 2,027 Active Firms (2026)
IT services providers running web security and edge-delivery tooling deliver managed infrastructure, support and digital operations for UK clients.
For IT services and managed-service providers, this edge-delivery and web-security stack usually sits between the public website, customer portals and documentation libraries, rather than inside the managed service contract itself. Running it tends to signal a direct-channel posture: marketing teams care about site speed and analytics, support teams rely on stable documentation, and technical teams have someone responsible for DNS, caching, bot rules and uptime. The fit is clearest among mid-market and larger operators selling to business customers, where web incidents affect lead generation as well as client confidence.
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Across the UK, 2,027 actively trading IT services and managed-service providers are running this edge-delivery and web-security stack. Reported employment totals 5,164 people. Within detected CDN use for the sector, this stack ranks first at 91.2% of a denominator of 2,223, with alternatives appearing in smaller shares. Adoption skews towards London at 26.7%, followed by the South East at 17.5%, the North West at 10.0%, the South West at 7.8% and the East of England at 7.6%.
Procurement tends to treat the stack as part of service resilience and client assurance rather than a standalone regulated activity. Buyers will usually ask how caching, traffic filtering, rate-limiting and browser monitoring interact with support forms, authentication pages and client documentation. Where providers operate across cybersecurity, telecommunications, consulting and agency work, the same public site may carry prospecting content, ticket-routing paths and knowledge-base material. That makes configuration governance material: who can alter DNS settings, how logs are retained, and how client-facing incidents are escalated often matter as much as the headline vendor choice.
Adoption appears mature in this slice of IT services, so movement is more likely to come from migration, bundling and tighter procurement standards than from first-time experimentation. Smaller managed-service providers tend to keep a simple public-web deployment, while more commercially developed operators add bot controls, analytics tags and monitoring around sales and support journeys. Consolidation in hosting, security and managed services may also narrow the number of stack patterns buyers encounter. The likely direction is less about replacing the edge layer outright and more about making it auditable, documented and tied into incident response.
Adoption by company size
Adoption of Cloudflare rises with company size across the trading UK IT services companies in this cohort. 1.1% of the 119,548 companies with under 10 employees run Cloudflare (1,294 detected). 30.1% of the 2,157 companies with 10–50 employees run Cloudflare (649 detected). 39.2% of the 181 companies with over 50 employees run Cloudflare (71 detected). That is a 38.1% gap between the over 50 employees and under 10 employees bands.
2,027
Active firms
2026
91.2%
Of detected CDN share
UK IT services
6
Median headcount
Filed accounts
4,299
Verified contacts
Across this cohort
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Key facts
About 5% of the trading cohort reports turnover above £5M (114 of 2,027 firms) — the rest sits below that revenue band.
7% of the cohort was incorporated since 2022 (150 firms), so a sizeable share is in its first few filing cycles.
Within IT services, this system accounts for 91.2% (2,027) of detected CDN usage among 2,223 companies with a detectable system; the nearest detected alternatives sit at 7.2% (159) and 6.7% (148).
London accounts for 26.7% (542) of the cohort, followed by the South East at 17.5% (355) and the North West at 10.0% (202).
Cybersecurity overlaps with 23.8% (482) of these IT services providers, while telecommunications appears on 13.5% (274).
A content-management platform is also detected on 53.4% (1,082) of the cohort, with analytics at 48.2% (978) and tag-management at 45.9% (931).
CDN market share among UK IT Services
Share of the 2,223 UK IT Services with a detectable system. As of June 2026.
What else do Cloudflare-running IT Services run?
Share of the 2,027 Cloudflare-running UK companies where each technology was also detected. As of June 2026.
Where Cloudflare IT Services 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
£494.9K
Median UK turnover
5.6%
Above £5M turnover
150
Incorporated since 2022
4,299 verified decision-maker contacts
across these 2,027 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK IT Services using Cloudflare
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 managed cloud infrastructure and hosting services, including public and private cloud, object storage, backup, disaster recovery, cybersecurity monitoring, and network connectivity, helping…
Serves IT, security and infrastructure teams in businesses and public sector organisations, with industry focus on education, financial services, government and healthcare, plus technology partners.
Financial Health
HealthyHealthy · -63% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides outsourced IT services, cybersecurity, and cloud infrastructure solutions for alternative investment firms, including design and management of IT environments, public cloud migration on AWS…
Serves B2B clients in the alternative investment industry, including investment firms that need outsourced IT, cybersecurity and cloud support for sensitive data, compliance and investor-facing…
Financial Health
HealthyHealthy · Hiring · 37% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed cloud and IT infrastructure services, including Microsoft Azure migration and management, private cloud hosting, disaster recovery, virtual desktop, and SD‑WAN connectivity, with…
Serves technology-dependent businesses and enterprise IT teams, including CTOs, developers and third-line engineers, with managed cloud, connectivity, data protection and disaster recovery needs.
Financial Health
StrongStrong · Growing, Hiring · 24% CAGR over 5y
Location
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Financial sub-scores
Computed from 5 filingsProvides web hosting services including shared, WordPress and Windows hosting, VPS, cloud and dedicated servers. Also offers domain name registration, email hosting, SSL certificates, website builder…
Serves UK consumers, small businesses, website owners, developers and hosting resellers needing domains, web hosting, email, VPS, cloud or dedicated server services.
Financial Health
StrongStrong · -3% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides managed IT services including cloud hosting, cybersecurity, data protection and infrastructure management. Delivers IBM Power and hybrid cloud solutions, consultancy, maintenance, disaster…
Serves B2B organisations and enterprise IT teams running IBM Power, IBM i/AIX, SAP or Oracle workloads, with a focus on hybrid cloud, infrastructure and cybersecurity buyers.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 37% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsProvides IT consultancy and managed services focused on cloud transformation, data and AI, and modern workplace platforms. Develops software tools for data review, migration and security, and…
Serves public and private sector organisations, particularly enterprises needing cloud transformation, managed IT services, Microsoft/Azure, data and AI, modern workplace, content migration and…
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT services including IT support, co-managed IT, backup and disaster recovery, and technology consulting. Delivers cloud solutions based on Microsoft 365 and Azure, cybersecurity…
Sells to businesses and non-profits of all sizes, from small organisations to larger corporates, needing outsourced or co-managed IT, cloud, telecoms and cyber security support. Emphasis is on…
Financial Health
StrongStrong · Growing · 1% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT services and communications solutions for businesses, including IT support, cybersecurity, cloud services, hardware‑as‑a‑service, unified communications, connectivity, contact…
Serves UK and international B2B and public-sector organisations, including SMBs, large enterprises, schools, universities, multi-academy trusts and other public bodies.
Financial Health
HealthyHealthy · -52% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides enterprise IT consulting and managed services including cloud infrastructure design and migration, cybersecurity and compliance solutions, data centre transformation, backup and recovery,…
Serves enterprise organisations and their IT leadership teams, including firms with hybrid or multi-cloud environments, compliance requirements, data centre estates and internal skills gaps, seeking…
Financial Health
HealthyHealthy · Hiring · 144% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides IT consulting and managed services including cloud solutions, cloud security, datacenter and network architecture, wireless and mobility systems, collaboration platforms, connectivity…
Serves business and public-sector clients, including organisations in financial services, retail, healthcare, professional services, aviation/transportation, legal and government sectors, with a…
Financial Health
HealthyHealthy
Location
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Financial sub-scores
Computed from 4 filingsProvides managed IT and communications services including unified communications, cloud telephony, contact centre platforms, cyber security, business mobile, networking, and managed print, alongside…
Serves mid-market and enterprise organisations across private and public sectors, including government, education, housing associations, healthcare, financial services, legal, retail, hospitality and…
Financial Health
HealthyHealthy · -76% CAGR over 3y
Location
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Computed from 5 filingsProvides managed IT services including helpdesk support, cloud and Azure management, cybersecurity, infrastructure hosting, and connectivity. Delivers migration, Microsoft 365 optimisation, device…
Serves UK businesses, particularly professional services firms in accounting, legal, financial advisory, wealth management, insurance and risk services, with buyers including operations and IT…
Financial Health
HealthyHealthy · -66% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT services for businesses, including technical support, IT infrastructure management, cloud migration and cloud management, cybersecurity services, and IT project consultancy.…
Sells to businesses across the UK and Ireland that need IT support and managed services, cloud, cyber security and project expertise. Serves organisations in multiple sectors, including retail and…
Financial Health
StrongStrong · Hiring · 23% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT services, cloud infrastructure, cybersecurity, and business communications. Offers connectivity including broadband, leased lines and SD‑WAN, unified communications, cloud contact…
Sells to businesses seeking managed technology support, including IT and security leaders, operations teams, contact centres, hybrid-work employers and multi-site organisations needing…
Financial Health
StableStable · -60% CAGR over 5y
Location
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Computed from 5 filingsProvides IT consultancy and digital transformation services including software development, data and analytics solutions, cloud and platform implementation, cybersecurity, digital workplace…
Serves B2B clients, mainly large organisations and enterprises across 50 countries, including teams with complex IT, data, cloud, Microsoft 365, information management and managed service needs.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 21% CAGR over 4y
Location
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Computed from 3 filingsProvides IT managed services including cloud migration, Microsoft 365 workplace solutions, Azure infrastructure modernisation, cybersecurity, AI and automation readiness assessments, and strategic IT…
Targets business leaders and internal IT teams at growing organisations with Microsoft-focused environments, including retailers, manufacturers and infrastructure projects, seeking fully managed or…
Financial Health
StrongStrong
Location
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Computed from 5 filingsProvides IT consulting and managed services focused on cyber security, cloud infrastructure, networking and data resilience. Designs and implements security controls, threat detection, compliance…
Serves IT, security and operations leaders at UK businesses with complex cyber, cloud, infrastructure and operational resilience requirements, including leisure, retail, hospitality, financial…
Financial Health
StrongStrong · Profitable, Growing, Hiring · 33% CAGR over 4y
Location
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Computed from 5 filingsProvides managed IT services for businesses, including helpdesk support, IT infrastructure maintenance, cybersecurity and risk management, cloud solutions, disaster recovery, and IT strategy…
Serves businesses and organisations across Northern Ireland and Ireland, targeting teams that need outsourced IT support, IT strategy, cyber security, cloud, continuity, and workplace collaboration…
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 4y
Location
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Computed from 5 filingsProvides automated managed IT services including service desk support, network and infrastructure management, cloud architecture, identity and access management, and security operations. Also…
Serves IT teams and business leaders in public and private sector organisations, including transport and logistics, retail, manufacturing, financial services and not-for-profit organisations.
Financial Health
StrongStrong · Growing, Hiring · 3% CAGR over 4y
Location
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Computed from 3 filingsProvides IT infrastructure and cybersecurity services, including network design and management, wireless and WAN solutions, collaboration systems, and managed support. Helps organisations deploy,…
Serves B2B and public-sector organisations, especially higher education institutions, healthcare providers, NHS trusts, and commercial enterprises across Europe.
Financial Health
StrongStrong · Growing · 1% CAGR over 2y
Location
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Computed from 5 filingsProvides managed IT and cloud infrastructure services, including private cloud deployment, cloud access, Ethernet and MPLS networking, private LTE connectivity, IP transit, and data centre support…
Serves businesses needing managed IT, private cloud, data centre infrastructure, connectivity and IP transit, including organisations with remote or teleworking teams and infrastructure-heavy…
Financial Health
StrongStrong
Location
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Computed from 3 filingsProvides managed IT services, network infrastructure, cloud solutions and cybersecurity, alongside managed print and document workflow systems. Supplies and supports audio‑visual technology including…
Sells to businesses and institutions, including schools, colleges and universities, SMEs, manufacturers, construction firms, professional services companies, and public sector/government…
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides managed IT services including help desk support, network and data centre management, cybersecurity monitoring, firewall management, and cloud services. Also conducts penetration testing,…
Serves business owners and IT decision-makers across charity, financial services, hospitality, legal, healthcare, retail, manufacturing, education and public sector organisations.
Financial Health
StrongStrong · Growing, Hiring · 17% CAGR over 4y
Location
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Computed from 5 filingsProvides managed IT support and technology services for businesses, including service desk support, Microsoft 365 management, cybersecurity, cloud services, network connectivity, VoIP telephony,…
Serves businesses and public sector organisations across the UK, including engineering, manufacturing, construction, health and social care, charities, legal, financial, hospitality and leisure…
Financial Health
StrongStrong · Growing, Hiring · 8% CAGR over 4y
Location
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Computed from 5 filingsProvides managed IT services including technical support, cybersecurity, cloud infrastructure, internet connectivity and VoIP systems. Also advises businesses on IT strategy, compliance standards…
Serves B2B customers in London’s regulated professional services sector, targeting finance, operations and IT leaders in organisations that prioritise security, compliance and continuity.
Financial Health
HealthyHealthy · Hiring · 3% CAGR over 4y
Location
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Computed from 5 filingsProvides digital and cloud consulting and engineering services including cloud migration and optimisation, managed hybrid cloud operations, DevOps implementation, and software-defined networking…
Serves B2B organisations needing digital transformation, including enterprises in media, data centres, energy and technology sectors, with buyers such as operations, ICT and strategic planning…
Financial Health
StrongStrong · Growing, Hiring · 40% CAGR over 4y
Location
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Computed from 5 filingsProvides managed IT services and cybersecurity for businesses, including IT helpdesk support, network infrastructure management, cloud hosting, Microsoft 365 support, disaster recovery, vulnerability…
Serves businesses needing outsourced IT and cyber security support, especially legal firms, accountancy practices, energy companies, warehouse and logistics operators, and estate agents in Doncaster,…
Financial Health
HealthyHealthy · Hiring · 20% CAGR over 4y
Location
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Computed from 5 filingsProvides IT consultancy and managed services focused on digital workspace, Citrix environments, and multi-cloud infrastructure. Services include health checks, infrastructure assessments, project…
Serves IT leaders and infrastructure teams at mid-market and enterprise organisations managing hybrid workspaces, Citrix estates and multi-cloud environments.
Financial Health
StrongStrong · Growing, Hiring · 9% CAGR over 4y
Location
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Computed from 5 filingsProvides managed IT services including cloud hosting, cybersecurity, and technical support. Implements digital workplace and desktop‑as‑a‑service solutions, manages networks and infrastructure, and…
Serves B2B organisations in legal and professional services, including law firms, barristers’ chambers and firms with fee earners, operational teams and multiple office or remote users.
Financial Health
StrongStrong · Growing, Hiring · 6% CAGR over 4y
Location
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Computed from 5 filingsProvides managed infrastructure and connectivity services including hybrid cloud connectivity, SD‑WAN, MPLS/VPLS and dedicated network links. Offers cloud and network integration, hosting,…
Sells to businesses and IT teams with complex infrastructure, cloud and network connectivity requirements, including organisations operating across multiple clouds, data centres and global locations.
Financial Health
StrongStrong · Growing, Hiring · 17% CAGR over 4y
Location
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Computed from 5 filingsProvides IT consulting, systems implementation, outsourcing and managed support services, including ERP and CRM platforms, e‑commerce systems, cloud migration, data analytics, automation, and…
Serves enterprises and public sector organisations in retail, consumer goods, healthcare, life sciences, banking, financial services, insurance and telecoms seeking technology-led transformation.
Financial Health
StableStable · Hiring · 100% CAGR over 4y
Location
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Computed from 4 filingsProvides IT infrastructure and managed technology services, including cloud solutions, networking and Wi‑Fi, data centre systems, cybersecurity, and workplace collaboration tools. Also offers…
Serves businesses and organisations of all sizes across industries in the UK, targeting IT, operations and procurement decision-makers responsible for workplace technology, infrastructure, cloud,…
Financial Health
HealthyHealthy · Hiring · 44% CAGR over 3y
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Computed from 5 filingsProvides managed IT services and technology strategy for organisations, including virtual CIO advisory, IT support, infrastructure monitoring, Microsoft 365 management, cybersecurity, cloud services,…
Serves SMEs and not-for-profit organisations, including clients in legal services, home improvement, health and social care.
Financial Health
HealthyHealthy · -8% CAGR over 5y
Location
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Computed from 5 filingsProvides managed IT support, cloud infrastructure services and cyber security solutions including threat detection, SIEM monitoring and staff training. Also supplies business communications,…
Sells to businesses and organisations with staff, IT infrastructure and workplace sites to protect, including in-house IT teams needing external project, compliance and security support.
Financial Health
StrongStrong · Growing, Hiring · 6% CAGR over 4y
Location
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Computed from 5 filingsProvides managed IT services for businesses and education organisations, including IT support, cyber security, cloud solutions, IT consultancy, and VoIP telephony systems. Also assists with Cyber…
Serves businesses and educational organisations across the South East of England, including clients with workplace IT, cyber security, cloud and communications requirements, and public sector buyers…
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
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Computed from 3 filingsProvides managed IT services and consultancy for businesses, including cybersecurity, cloud platform support, Microsoft licensing optimisation, data governance, and IT service management. Supports…
Serves B2B organisations that have outgrown basic IT support, especially businesses managing complex change, cloud/Microsoft environments, security, data governance and licensing needs.
Financial Health
StrongStrong · Growing · 2% CAGR over 2y
Location
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Computed from 4 filingsProvides IT consultancy and managed services focused on Microsoft technologies. Designs, implements and supports cloud solutions including Microsoft 365, Azure and Power Platform, along with managed…
Serves businesses of all sizes seeking Microsoft cloud, security and managed IT support, including organisations adopting M365, Azure, Power Platform and Teams.
Financial Health
StrongStrong · Growing, Hiring · 10% CAGR over 4y
Location
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Computed from 5 filingsProvides managed IT services and IT consultancy, including cloud migration, Microsoft 365 and Azure support, cybersecurity, network monitoring, backup and disaster recovery, and IT infrastructure and…
Serves businesses of unspecified size across industries, plus individual users, with a buyer profile of organisations and people seeking ongoing IT support, cloud, cybersecurity and connectivity…
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
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Computed from 5 filingsProvides managed IT services including IT management, technical support, cybersecurity, infrastructure configuration, software licensing, and hosted application support. Advises businesses on IT…
Serves B2B clients, particularly legal, finance and media firms, including chambers, solicitors, property groups, wealth and investment firms, and design agencies.
Financial Health
StrongStrong · Growing, Hiring · 24% CAGR over 4y
Location
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Computed from 3 filingsProvides IT consulting, managed services, and operational support for telecommunications and other organisations, including systems integration, data analytics, cybersecurity, ServiceNow…
Serves B2B telecoms and connectivity providers, especially alternative network operators and telcos scaling networks, modernising operations, or integrating businesses after M&A.
Financial Health
StrongStrong · Growing, Hiring · 91% CAGR over 2y
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Computed from 5 filingsProvides IT services including cloud computing, cyber security, networking and infrastructure, unified communications, audio visual systems, software licensing, AI solutions, and outsourced or…
Serves businesses, education providers and other organisations, targeting IT leaders, operations teams and procurement buyers seeking an external technology fulfilment partner.
Financial Health
StrongStrong · Growing, Hiring · 33% CAGR over 4y
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Computed from 4 filingsProvides IT infrastructure and technology services including hybrid cloud and datacentre solutions, cybersecurity, networking, managed IT services, hardware and software supply, and professional…
Serves businesses and organisations with internal IT, operations and leadership teams responsible for cloud infrastructure, cybersecurity, networking, Microsoft environments, workplace technology,…
Financial Health
StrongStrong · 53% CAGR over 2y
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Computed from 3 filingsProvides third‑party support and managed services for enterprise software including Oracle, SAP and VMware. Services include issue resolution, security updates, database and infrastructure health…
Serves B2B organisations of all sizes running Oracle, SAP and VMware enterprise software, targeting IT, ERP, database and infrastructure teams across mid-sized businesses and large global enterprises.
Financial Health
HealthyHealthy · Hiring · 20% CAGR over 2y
Location
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Computed from 5 filingsProvides managed technology services including IT support, managed print services, cybersecurity, cloud and digital transformation solutions, and unified communications. Supports and maintains…
Sells to businesses of all sizes needing managed IT, print, security, communications and digital transformation support, and also serves Scottish public sector organisations through…
Financial Health
StrongStrong · Growing, Hiring · 9% CAGR over 5y
Location
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Computed from 5 filingsProvides IT services including cyber security, network infrastructure, cloud services and managed IT support. Designs and deploys visual technology such as video walls, digital signage and meeting…
Serves businesses and public sector organisations in education, healthcare, local government, professional services, retail, hospitality and manufacturing, particularly those with large user bases,…
Financial Health
HealthyHealthy · Hiring · 22% CAGR over 4y
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Computed from 3 filingsProvides managed IT services and technical support for businesses, including co‑managed and remote IT support, cybersecurity and email security, penetration testing, Microsoft 365 migration, wireless…
Serves growing businesses in the UK, especially South West organisations, that need outsourced or co-managed IT support, cybersecurity compliance, cloud adoption and technology guidance.
Financial Health
StrongStrong · Growing, Hiring · 9% CAGR over 2y
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Computed from 5 filingsProvides managed IT services including technical support, cloud infrastructure management, cybersecurity, and IT strategy. Supports organisations with system monitoring, helpdesk services, and…
Serves modern businesses and organisations seeking managed IT, cloud and cybersecurity support, with emphasis on London and UK customers and additional clients in New Zealand and Australia.
Financial Health
HealthyHealthy · Growing · 1% CAGR over 5y
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Computed from 5 filingsProvides technology and digital transformation consultancy including software engineering, cloud and DevOps platform development, data and AI services, testing, product delivery, and architecture…
Serves UK government, public sector bodies and critical enterprise organisations, including energy and utilities, telecommunications, healthcare, financial services and defence buyers undertaking…
Financial Health
HealthyHealthy · -56% CAGR over 5y
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Financial sub-scores
Computed from 5 filingsProvides managed IT support and helpdesk services for businesses, including network management, cloud services, cybersecurity, Microsoft 365 support, IT consultancy, procurement, disaster recovery,…
Sells to businesses, mainly in London and Essex, including financial services firms, fintechs, insurers, hedge funds, hospitality venues, retailers, manufacturers, coworking spaces and schools.…
Financial Health
HealthyHealthy · Growing · 2% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides cybersecurity and network consultancy services including identity and access management, zero trust architecture, cloud security posture management, data protection, and network…
Serves enterprise organisations and their IT/security leaders needing cybersecurity, identity, zero trust, cloud security, data protection and network modernisation support.
Financial Health
StrongStrong · Growing, Hiring · 29% CAGR over 4y
Location
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Showing 50 of 2,027 — +1,977 more with verified decision-maker contacts, live data, and CRM sync.
Unlock all 2,027 leads
Showing 50 of 2,027 — +1,977 more with verified decision-maker contacts, live data, and CRM sync.
How Cloudflare 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. IT services 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 IT services 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.
Cloudflare 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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How is Cloudflare usage detected?
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