IT Services Companies Using All in One SEO in the UK: 193 Active Firms (2026)
IT services companies using SEO tooling deliver managed technology support and consultancy while optimising public websites for UK business search demand.
For managed service providers, the SEO layer does a fairly specific job: keeping service pages, technical explainers, location pages and support-led content legible to search engines. Adoption usually points to a marketing operation that has moved beyond a brochure site, even if the team remains small. These firms tend to sell outsourced IT support, cloud operations, cybersecurity, hosting and integration work to UK business customers, so the website has to translate technical credibility into enquiries. The tool is less a sign of deep engineering capacity than of direct-channel discipline: controlled metadata, indexable service architecture and a willingness to compete for search-led demand.
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The UK cohort contains 193 actively trading IT services and managed services companies running this SEO tool. Reported employment totals 15,795 people, giving the adoption group a visible workforce footprint rather than just a long tail of micro-sites. Within the sector’s detected SEO-tool ranking, the system sits third, at 9.1% of a 2,122-company denominator. Registered offices are concentrated in London (26.4%) and the South East (23.3%), followed by the East of England (11.4%), the West Midlands (10.4%) and the North West (6.2%). That pattern fits a sales-led services market with a southern skew but not a London-only one.
Procurement scrutiny for these firms usually attaches to the services they sell, not to the SEO plugin itself. The website stack still matters, because contact forms, analytics tags and downloadable content can collect prospect information before any contract is signed. For managed service providers, that creates a practical boundary between marketing operations and client-facing security claims: cookie handling, form routing, hosting choices and access controls need to look consistent with the firm’s wider IT posture. The vendor ecosystem is also relatively bundled, with SEO, forms, page building, caching and measurement often managed through the same web-maintenance relationship rather than a dedicated growth-engineering team.
Adoption appears likely to follow website rebuild cycles rather than standalone SEO buying decisions. Smaller providers tend to inherit the tool from an agency-managed site, while more mature operators are more likely to treat search visibility as part of a broader lead-generation process. Migration pressure may come from page-speed work, consent management and consolidation of marketing tags, especially where firms want fewer moving parts in their public web stack. The category also looks exposed to bundling: if hosting, content management and analytics suppliers keep absorbing basic search functions, standalone plugin choice may become less visible to buyers.
Adoption by company size
Adoption of All in One SEO rises with company size across the trading UK IT services companies in this cohort. 0.1% of the 119,548 companies with under 10 employees run All in One SEO (129 detected). 2.8% of the 2,157 companies with 10–50 employees run All in One SEO (60 detected). 2.2% of the 181 companies with over 50 employees run All in One SEO (4 detected). That is a 2.1% gap between the over 50 employees and under 10 employees bands.
193
Active firms
2026
9.1%
Of detected SEO share
UK IT services
6
Median headcount
Filed accounts
376
Verified contacts
Across this cohort
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Key facts
About 4% of the trading cohort reports turnover above £5M (8 of 193 firms) — the rest sits below that revenue band.
7% of the cohort was incorporated since 2022 (15 firms), so a sizeable share is in its first few filing cycles.
Among 2,122 IT services firms with a detectable SEO system, this SEO plug-in accounts for 9.1% (193) of detections, behind two larger plug-in cohorts at 76.2% (1,618) and 13.4% (284).
London accounts for 26.4% (51) of the cohort, followed by South East at 23.3% (45), East of England at 11.4% (22), West Midlands at 10.4% (20), and North West at 6.2% (12).
All 193 firms are detected on the same open-source CMS, while 60.6% (117) also carry a web-analytics tag and 45.6% (88) use a bot-control component.
Public-site conversion tooling is common: 41.5% (80) show a form plug-in, 40.9% (79) a page-builder layer, and 32.6% (63) a tag-management tool.
Adjacent sector tags show where IT services running this SEO plug-in overlap: cybersecurity appears on 26.9% (52), telecommunications on 14.5% (28), and AI & Machine Learning on 7.8% (15).
SEO market share among UK IT Services
Share of the 2,122 UK IT Services with a detectable system. As of June 2026.
What else do All in One SEO-running IT Services run?
Share of the 193 All in One SEO-running UK companies where each technology was also detected. As of June 2026.
Where All in One SEO 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
£392.2K
Median UK turnover
4.1%
Above £5M turnover
15
Incorporated since 2022
376 verified decision-maker contacts
across these 193 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK IT Services using All in One SEO
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 3 filingsProvides managed IT support and consultancy for businesses, including remote monitoring, cybersecurity services, cloud infrastructure, cloud backup, Microsoft Teams and telephony systems, and support…
Serves B2B companies in London and the Thames Valley with 10–250 users, typically organisations needing an outsourced IT department for their workplace technology environment.
Financial Health
StableStable · -15% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT services including outsourced IT support, remote helpdesk, infrastructure management, cloud services, cybersecurity, connectivity and business continuity solutions, along with IT…
Serves businesses needing outsourced or supplementary IT capability, including organisations with in-house IT teams and clients with regulated infrastructure compliance requirements.
Financial Health
WeakWeak · 0% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT support and consultancy for businesses, including remote and on-site support, cloud solutions, Microsoft 365 deployment and management, network migration, cybersecurity, backup…
Serves UK businesses needing outsourced IT support, especially SMEs and professional services firms such as solicitors, accountants and surveyors in Doncaster, Leeds, Rotherham, Sheffield and beyond.
Financial Health
HealthyHealthy · -4% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides managed IT services including cloud hosting, cybersecurity, digital workspace management, and data centre services. Also offers IT service management, IT supply chain procurement,…
Serves organisations across sectors, with emphasis on healthcare and NHS/public-sector environments, plus businesses needing global IT supply chain and digital workplace support.
Financial Health
StableStable · Hiring · 13% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT support and outsourcing services for businesses, including network design, 24/7 monitoring, cloud infrastructure, Microsoft 365 licensing, cybersecurity, IT consultancy, and…
Serves UK businesses, particularly London-based start-ups with 2–15 users and SMEs with 30–500 users, including firms needing outsourced or extended IT teams.
Financial Health
HealthyHealthy · -3% CAGR over 4y
Location
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Financial sub-scores
Computed from 4 filingsProvides managed IT services for businesses, including IT support, consultancy, cloud solutions, VoIP telephony, network design and Wi‑Fi, cybersecurity, email and data migration, backup services,…
Targets start-ups, SMEs and larger organisations, including charities, that need an outsourced IT provider for office technology, cloud infrastructure, networks, communications and security.
Financial Health
HealthyHealthy · 3% CAGR over 3y
Location
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Financial sub-scores
Computed from 3 filingsProvides managed cloud IT services including Microsoft 365, Teams and Azure hosting, business email, cloud infrastructure, security and backup, domain registration, web hosting, and migration…
Serves businesses of all sizes, including SMEs and enterprise teams, plus IT resellers seeking Microsoft cloud, productivity, communications and security support.
Financial Health
WeakWeak · Profitable · -18% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT support and service desk services for businesses, including device and access management, Microsoft 365 administration, cyber security, backup and disaster recovery, cloud…
Serves UK businesses that rely on Microsoft 365, cloud systems, CRM and bespoke applications, targeting teams seeking outsourced IT support, security and automation for office-based operations.
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides managed IT support services for businesses, including helpdesk support, system monitoring, cybersecurity and compliance services, Microsoft 365 deployment and management, cloud and Azure…
Serves UK businesses and schools, with emphasis on Yorkshire, Manchester and Birmingham. Targets accountancy practices, manufacturers, solicitors, haulage and transport firms, and organisations using…
Financial Health
StrongStrong · Growing, Hiring · 18% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT and cybersecurity services, including network management, monitoring and capacity planning, incident response, threat intelligence, and security consulting. Also offers managed…
Serves businesses and public-sector buyers needing managed security, cloud, networking and IT infrastructure support, including organisations focused on cyber security, regulatory compliance and…
Financial Health
HealthyHealthy
Location
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Financial sub-scores
Computed from 2 filingsProvides managed IT support and cybersecurity services for businesses, including 24/7 system monitoring, proactive maintenance, remote helpdesk support, spam filtering, security awareness training,…
Serves small and medium-sized businesses across Scotland and the UK, including growing companies needing outsourced IT support and organisations with in-house IT teams seeking extra capacity or…
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 1y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT services including helpdesk support, cybersecurity, backup and disaster recovery, and network monitoring. Designs and implements IT infrastructure projects such as network…
Serves B2B organisations across the UK and Europe, including professional services firms and legal practices, with buyers such as practice managers, corporate VIPs and operations teams.
Financial Health
StableStable · 2% CAGR over 4y
Location
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Computed from 5 filingsProvides managed IT services and support for businesses, including infrastructure design and implementation, network and device management, cybersecurity services, cloud solutions, telephony systems,…
Serves businesses, particularly in the East Midlands, that need outsourced IT management and support, including organisations buying per-user helpdesk, Microsoft 365, cyber security, connectivity,…
Financial Health
StrongStrong · Growing, Hiring · 3% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides managed IT support and consulting for businesses, including Microsoft 365 support and migration, cybersecurity services, vulnerability testing, disaster recovery planning, cloud hosting and…
Serves UK businesses and organisations, including SMEs, life sciences and biotech startups/spin-outs, professional services firms, and not-for-profits/charities, with emphasis on Oxfordshire and…
Financial Health
StableStable · Hiring · 13% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsProvides managed IT support and consulting for small and medium-sized businesses, including helpdesk support, IT infrastructure projects, cloud and Microsoft 365 services, cybersecurity solutions,…
Serves small and medium-sized organisations across the UK, especially in South Wales, the Midlands and the South West, including businesses and charities needing outsourced IT support.
Financial Health
HealthyHealthy · -21% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsProvides managed IT support and consultancy for businesses, including network installation, server virtualisation, cybersecurity, cloud computing, Microsoft 365 management and backup services. Also…
Serves B2B organisations of all sizes in Portsmouth, Southampton, Fareham and Hampshire, including defence-sector clients, professional services firms and companies seeking an outsourced IT partner.
Financial Health
WeakWeak · 3% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides managed IT support services for businesses, including remote and on-site technical support, Microsoft 365 administration, VoIP telephony, internet connectivity, cloud hosting and backups,…
Serves UK businesses needing outsourced IT support, telecoms and cloud services, targeting company owners, managers and internal teams that require remote and on-site technical support.
Financial Health
HealthyHealthy · 0% 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, cybersecurity services, and business telecommunications. Offers remote support, system…
Serves growing businesses and business owners across the South West, particularly SMEs seeking an outsourced IT department for managed IT, cyber security and telecoms support.
Financial Health
StrongStrong
Location
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Financial sub-scores
Computed from 3 filingsProvides hosted desktop and private cloud platforms that run accounting applications on virtual desktops. Delivers managed IT support, cloud infrastructure, data hosting, migrations, and security…
Serves UK accountancy firms and practices needing hosted desktop and IT support, alongside reseller partners offering cloud services to their own clients.
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 2y
Location
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Provides managed IT services and cloud consulting focused on Microsoft technologies, including Azure infrastructure, Microsoft 365, modern workplace solutions, and data and AI platforms. Offers…
Serves businesses and public-sector organisations using Microsoft cloud platforms, particularly teams needing outsourced IT support, security and compliance oversight, and strategic technology…
Financial Health
N/AN/A
Location
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Financial sub-scores
Computed from 3 filingsProvides IT and data management services including data storage, backup and secure cloud solutions, remote monitoring, networking, server infrastructure, Microsoft 365 and Azure support, SharePoint…
Serves businesses and organisations with significant data management needs, particularly IT teams managing enterprise data across data centres, cloud, hybrid, Microsoft 365/Azure and SharePoint…
Financial Health
StableStable · -7% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides IT and telecommunications services for businesses, including managed IT support, network design and installation, VoIP telephone systems, cyber security and email security solutions, and…
Serves businesses of any size, particularly in the Peterborough area, that need outsourced IT, telecoms, cyber security and email protection support, including organisations with multi-site or more…
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 5y
Location
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Computed from 3 filingsProvides managed IT services, technical support, cyber security consulting and training, and business communications systems. Supplies VoIP/3CX telephone systems, mobile and connectivity services,…
Serves SMEs, enterprises, education providers, public sector bodies and charities, primarily in Worcestershire, the Midlands and across the UK.
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 2y
Location
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Computed from 5 filingsProvides business telecommunications and IT services including hosted phone systems, VoIP, contact centre platforms, SIP trunks, broadband connectivity and mobile services, alongside IT support,…
Serves micro businesses, SMEs and larger organisations, with segments for 1–25, 26–99 and 100+ employees; buyers include business owners, IT teams and managers responsible for communications,…
Financial Health
StableStable · 1% CAGR over 4y
Location
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Computed from 3 filingsProvides IT consulting and support for businesses, including network design and management, remote data backup, malware and virus removal, web hosting, website design, and help desk and remote…
Serves small and mid-sized businesses with office computer networks, servers and multiple locations, including professional services firms, staffing agencies and real estate companies.
Financial Health
WeakWeak · 0% CAGR over 2y
Location
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Computed from 3 filingsProvides IT infrastructure and managed services including design, deployment and management of enterprise servers and storage. Offers cloud hosting, backup and disaster recovery, remote monitoring,…
Serves UK businesses and public sector organisations with business-critical IT estates, particularly in financial services, manufacturing, distribution and retail, as well as teams managing…
Financial Health
StrongStrong · Profitable, Growing, Hiring · 15% CAGR over 2y
Location
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Computed from 5 filingsProvides managed IT and telecommunications services for businesses, including technical support, incident handling and infrastructure management. Also develops custom software and delivers…
Serves UK businesses and organisations, including professional services firms, estate agencies, charities/advice services, and maintenance or building companies.
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
Location
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Computed from 3 filingsProvides managed IT support, cybersecurity services, and technology consultancy for businesses and non-profit organisations. Services include Microsoft 365 management, cloud services, data backup,…
Serves small and medium-sized businesses and charities across Dorset and the UK, across most industries, seeking an outsourced technology partner rather than in-house IT staff.
Financial Health
HealthyHealthy · -9% CAGR over 2y
Location
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Computed from 5 filingsProvides managed IT support and technology services for businesses, including cybersecurity, network and connectivity solutions, cloud and infrastructure support, and installation and management of…
Serves UK businesses seeking an outsourced IT provider, with enquiry options for organisations from 1 to 201+ employees and site references to Surrey and London IT support.
Financial Health
HealthyHealthy · 0% CAGR over 5y
Location
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Computed from 5 filingsProvides IT support and managed IT services including desktop and server support, cloud hosting, backups, disaster recovery, and cybersecurity. Also delivers VoIP, network cabling, web development,…
Serves London-based businesses, especially hotels, build-to-rent and student accommodation operators, co-living spaces, recruitment agencies, accounting firms and general SMEs.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides managed IT support and technology services including cloud migration and management, cybersecurity, network and telephony systems, IT consultancy and projects, and implementation of tools…
Serves schools, multi-academy trusts, SMBs, enterprises, charities and not-for-profits seeking outsourced or supplementary IT support and managed technology services.
Financial Health
StrongStrong · Growing, Hiring · 3% CAGR over 4y
Location
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Computed from 5 filingsProvides IT support services for small and medium-sized businesses, including remote and on-site technical support, network design and installation, cloud migration, Microsoft 365 management,…
Serves small and medium-sized London businesses, particularly owners and managers seeking dependable external IT support rather than large IT firms or one-person contractors.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 2 filingsProvides enterprise IT services including managed IT support, cloud migration and optimisation, AI consulting and implementation, AIOps, cybersecurity, and data centre services. Also delivers…
Serves large enterprises, SMBs and public-sector agencies worldwide, particularly in finance, banking, telecommunications, insurance, travel and healthcare, where buyers operate secure, complex IT…
Financial Health
StrongStrong
Location
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Computed from 5 filingsProvides enterprise IT services and technology solutions, including cloud and data centre infrastructure, networking, cybersecurity, software licensing, virtual desktop systems, IT asset management…
Serves businesses and enterprise organisations, particularly IT leaders and procurement teams needing end-user, data-centre and cloud technology, software licensing, cybersecurity and infrastructure…
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides IT consulting and managed services including infrastructure design and modernisation, network architecture, cybersecurity and compliance, cloud and data centre migration, and DevOps…
Sells to blue-chip companies and large enterprises, primarily B2B organisations across the UK and Ireland, including buyers responsible for mission-critical IT, networking, cybersecurity, cloud and…
Financial Health
DistressedDistressed · -16% CAGR over 4y
Location
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Computed from 4 filingsProvides IT support services for businesses, schools and home users, including helpdesk support, cloud solutions, cybersecurity and GDPR compliance, hardware and software supply, VoIP telephony,…
Serves a mixed market of SMEs, schools, charities and other organisations, alongside individual home users, primarily buyers responsible for day-to-day IT operations, security and connectivity.
Financial Health
StableStable · 0% CAGR over 3y
Location
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Computed from 5 filingsProvides managed IT support and consultancy for businesses, including system monitoring, upgrades and installations, data security, virtualisation, connectivity, hosted desktops and servers, cloud…
Serves businesses in London and South East England, from small firms to organisations with internal IT teams seeking outsourced or supplementary IT support, hosting and application services.
Financial Health
StrongStrong · Growing, Hiring · 11% CAGR over 4y
Location
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Computed from 5 filingsProvides managed IT support and infrastructure services for businesses and educational institutions, including remote and onsite technical support, hardware supply, cloud and data solutions, and IT…
Serves UK businesses and educational institutions, including schools and colleges, that need external IT support, infrastructure expertise or specialist technology staffing across varied sectors and…
Financial Health
StableStable · Hiring · 11% CAGR over 4y
Location
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Computed from 5 filingsProvides IT and cybersecurity services for organisations, including security consulting, gap analysis and risk assessments, incident response planning, 24/7 security monitoring, managed detection and…
Serves B2B, non-profit and public sector organisations of all sizes, including large corporations, small businesses and tech startups, seeking IT, cloud and cybersecurity support.
Financial Health
StrongStrong
Location
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Computed from 5 filingsProvides managed IT support and consultancy for businesses, including help desk services, cloud infrastructure, Microsoft 365 and Azure hosting, cybersecurity solutions, IP telephony systems, and…
Serves businesses and organisations, primarily local Aberdeen firms, seeking outsourced IT, cybersecurity, cloud and business communications support, from help-desk users to organisations needing…
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
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Computed from 3 filingsProvides managed IT services, Wi‑Fi networks, telecoms and VoIP systems, cybersecurity, and cloud connectivity. Designs, installs and manages technology infrastructure for hotels and commercial…
Serves B2B customers, primarily hotels, hospitality groups and hotel IT or operations teams, including luxury and new-build properties; also works with commercial businesses needing communications…
Financial Health
StrongStrong · Growing, Hiring · 6% CAGR over 2y
Location
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Computed from 3 filingsProvides IT support and technology services for schools and education organisations, including managed IT and helpdesk support, network design and management, cloud computing (Microsoft 365 and…
Serves schools, nurseries and multi-academy trusts across South East England, particularly East Kent, including government-funded and local education providers with internal or outsourced ICT needs.
Financial Health
StableStable · Hiring · 8% CAGR over 2y
Location
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Computed from 5 filingsProvides cloud consulting, implementation and managed services focused on Oracle and Microsoft Azure platforms. Services include ERP, HCM and SCM cloud deployment, application modernisation, data…
Serves B2B organisations using Oracle, Azure and hybrid cloud environments, targeting enterprise IT, finance, HR, operations and leadership teams managing cloud transformation, data platforms and…
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 6y
Location
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Computed from 5 filingsProvides managed IT support, computer network management, and cybersecurity services for businesses. Offers technology solutions including remote working tools, system maintenance, and technical…
Serves businesses in Lincoln, Lincolnshire and surrounding counties, particularly organisations that rely on maintained IT infrastructure, data security and remote-working technology.
Financial Health
StableStable · -7% CAGR over 4y
Location
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Computed from 5 filingsProvides IT consulting and technology services including digital transformation, cloud migration, data analytics, DevOps, ServiceNow implementation, robotic process automation, security operations,…
Serves UK businesses and organisations needing enterprise IT support, digital transformation, cloud, data, automation, ServiceNow and managed technology resourcing.
Financial Health
StrongStrong · Hiring · 32% CAGR over 4y
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 data migration, cloud modernisation and analytics services focused on Google Cloud, including AI/ML solutions, managed cloud services, security and compliance, and customer engagement…
Serves large enterprises and public sector organisations, including Fortune 100 customers, across healthcare and life sciences, retail and CPG, manufacturing, financial services and insurance, and…
Financial Health
StrongStrong
Location
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Computed from 3 filingsProvides cloud consulting and IT services including cloud readiness assessments, migration, and managed Microsoft 365 and Azure. Offers IT automation, digital transformation consulting, cybersecurity…
Serves B2B organisations with complex enterprise application and technology portfolios, including IT teams at large enterprises, ISVs and consumer internet businesses, with customers referenced…
Financial Health
StableStable · -10% CAGR over 2y
Location
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Computed from 5 filingsProvides IT consultancy and support services for businesses, including managed IT support, cybersecurity services, business continuity and backup planning, digital transformation consulting, and…
Serves businesses and internal IT teams, with emphasis on small businesses in London needing IT support, cybersecurity, business continuity, digital transformation and website services.
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 4y
Location
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Computed from 3 filingsProvides IT support and managed services for businesses, including computer and server supply, hardware and software repairs, network and Wi‑Fi installation, Microsoft 365 and cloud backup…
Serves small and medium-sized businesses needing outsourced IT support, office technology, connectivity, websites, and related business systems, typically acting for organisations without a full-time…
Financial Health
StableStable · Hiring · 7% CAGR over 2y
Location
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Unlock all 193 leads
Showing 50 of 193 — +143 more with verified decision-maker contacts, live data, and CRM sync.
How All in One SEO 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.
All in One SEO is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
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Frequently asked questions
How many UK IT services companies use All in One SEO?
What share of UK IT services companies run All in One SEO?
How is All in One SEO usage detected?
What size IT services companies use All in One SEO in the UK?
What do All in One SEO-running IT services companies also run?
Can I get contact details for these companies?
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