Company lists · Data refreshed September 2026
Top 25 Enterprise IT infrastructure companies based in the United Kingdom
RevenueBase identified 2,040 company matches for enterprise IT infrastructure companies associated with the United Kingdom as of September 2026 and tracks 38,240 professional contacts across them, including 13,109 with verified work emails and 2,334 with mobile numbers. London is the largest hub.
This list covers company matches for enterprise IT infrastructure companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 2, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest enterprise IT infrastructure companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,873 contacts → | ||||
Exact match “Softcat is a leading provider of IT infrastructure to corporate and public sectors.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 2 | 1,059 contacts → | ||||
Exact match “Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 3 | 872 contacts → | ||||
Exact match “Insight is a Fortune 500 global Solutions Integrator helping organizations accelerate their digital journey and maximize the value of technology.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 4 | 841 contacts → | ||||
Exact match “Complexity isn’t the enemy.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 5 | 816 contacts → | ||||
Exact match “Claranet modernise and run critical applications and infrastructure.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 6 | 784 contacts → | ||||
Exact match “Bytes is a leading provider of world-class IT solutions.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 7 | 661 contacts → | ||||
Exact match “Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 8 | 645 contacts → | ||||
Exact match “Fifteen years ago, Ahana began with a simple belief: technology should enable growth, not create complexity.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 9 | 624 contacts → | ||||
Exact match “Node4 helps businesses achieve more with secure, AI‑powered cloud and managed service platforms.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 10 | 585 contacts → | ||||
Exact match “Unlock your potential with XMA.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 11 | 580 contacts → | ||||
Exact match “Onnec is a leading partner for IT Infrastructure design, installation and operational support services.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 12 | 540 contacts → | ||||
Exact match “Ever since its establishment in 1992 as the first Japanese Internet Service Provider, IIJ has been taking pioneering steps in the field of Internet technology.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 13 | 529 contacts → | ||||
Exact match “Maintech: A trusted global partner for IT Infrastructure Solutions and Managed Services, leveraging over 50 years of experience to empower businesses worldwide.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 14 | 452 contacts → | ||||
Exact match “Redstone is now part of RedstoneConnect PLC.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 15 | 422 contacts → | ||||
Exact match “Trustmarque delivers the value of technology to bring real-life impact.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 16 | 422 contacts → | ||||
Exact match “Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 17 | 421 contacts → | ||||
Exact match “At Colt Data Centre Services, we aspire to our customers’ success, ensuring your growth is supported by the best infrastructure solution for your business’ unique vision.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 18 | 403 contacts → | ||||
Exact match “We believe successful businesses are underpinned by quality IT infrastructure.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 19 | 333 contacts → | ||||
Exact match “HashRoot is an ISO 9001:2015 and 27001:2015 certified IT Service Provider specialized in providing Artificial Intelligence as a Service, Cloud & DevOps Services, Data Center and…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 20 | 326 contacts → | ||||
Exact match “prosource.it is a managed IT services provider with a particular focus on infrastructure, operational and project requirements across the corporate enterprise market.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 21 | 289 contacts → | ||||
Exact match “boxxe is a leading provider of hardware, software, and managed IT services for public and private sector organisations.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 22 | 258 contacts → | ||||
Exact match “ARO is an award-winning IT Services and Solutions provider with almost 30 years of expertise in Cloud, Cyber Security, IT Collaboration, Data Centre Services, and Sustainability.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 23 | 245 contacts → | ||||
Exact match “Roc Technologies delivers transformational IT solutions to public and private sector organisations across the UK.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 24 | 230 contacts → | ||||
Exact match “Sudlows is a multi-award winning Critical Infrastructures, Enterprise Services and Facilities Management specialist which provides a full range of technical services for…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 25 | 226 contacts → | ||||
Exact match “Wanstor: Experience First | AI Fluent | Secure by Default Wanstor is a trusted Managed IT Services company that helps ambitious organisations leverage technology to achieve better…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “enterprise IT infrastructure companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 2,040 enterprise IT infrastructure companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 13,109 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Enterprise IT infrastructure companies based in the United Kingdom at a glance
As of Sep 2, 2026Companies by employee count
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United Kingdom whose business descriptions match “enterprise IT infrastructure companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 13,109 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 2, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Enterprise IT infrastructure companies by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “enterprise IT infrastructure companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many enterprise IT infrastructure companies are there based in the United Kingdom?
RevenueBase identified 2,040 company matches for enterprise IT infrastructure companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Softcat tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most enterprise IT infrastructure companies?
London leads with 593 company records, followed by Manchester (38) and Birmingham (36).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 13,109 professional contacts with verified work emails tracked across these 2,040 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 2, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,040 enterprise IT infrastructure companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Enterprise IT infrastructure companies by geography
- Enterprise IT infrastructure companies based in the United States
- Enterprise IT infrastructure companies based in Brazil
- Enterprise IT infrastructure companies based in Germany
- Enterprise IT infrastructure companies based in France
- Enterprise IT infrastructure companies based in Canada
- Enterprise IT infrastructure companies based in Australia
- Enterprise IT infrastructure companies based in Italy
- Enterprise IT infrastructure companies based in Spain
- Enterprise IT infrastructure companies based in South Africa
- Enterprise IT infrastructure companies based in the Netherlands
- Enterprise IT infrastructure companies based in Mexico
- Enterprise IT infrastructure companies based in Poland
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Enterprise IT infrastructure companies based in the United States
- Enterprise IT infrastructure companies based in Brazil
- Enterprise IT infrastructure companies based in Germany
- Enterprise IT infrastructure companies based in France
- Enterprise IT infrastructure companies based in Canada
- Enterprise IT infrastructure companies based in Australia
Company intelligence · public preview
Top 25 enterprise IT infrastructure companies based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,040 matching company records for enterprise IT infrastructure companies based in the United Kingdom, with 38,240 tracked contacts and 13,109 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 2, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 enterprise IT infrastructure companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Softcatsoftcat.comHQ: HQ not recorded; location: Whiteley, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Whiteley, United Kingdom | 1,001-5,000 | Exact match | 2,873 contacts → |
“Softcat is a leading provider of IT infrastructure to corporate and public sectors.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Kelly Groupkelly.co.ukHQ: HQ not recorded; location: Wembley, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Wembley, United Kingdom | 1,001-5,000 | Exact match | 1,059 contacts → |
“Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Sada, An Insight Companyinsight.comHQ: HQ not recorded; location: Poole, United KingdomReported employees: 10001+ | HQ not recorded; location: Poole, United Kingdom | 10001+ | Exact match | 872 contacts → |
“Insight is a Fortune 500 global Solutions Integrator helping organizations accelerate their digital journey and maximize the value of technology.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Nasstarnasstar.comHQ: HQ not recorded; location: Wakefield, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Wakefield, United Kingdom | 1,001-5,000 | Exact match | 841 contacts → |
“Complexity isn’t the enemy.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Claranetclaranet.co.ukHQ: HQ not recorded; location: Warrington, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Warrington, United Kingdom | 1,001-5,000 | Exact match | 816 contacts → |
“Claranet modernise and run critical applications and infrastructure.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Bytes Software Servicesbytes.co.ukHQ: HQ not recorded; location: Portsmouth, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Portsmouth, United Kingdom | 501-1,000 | Exact match | 784 contacts → |
“Bytes is a leading provider of world-class IT solutions.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Exponential-Eexponential-e.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 661 contacts → |
“Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Ahana Systems And Solutions Pvt. LTDahanait.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 645 contacts → |
“Fifteen years ago, Ahana began with a simple belief: technology should enable growth, not create complexity.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Node4node4.co.ukHQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 624 contacts → |
“Node4 helps businesses achieve more with secure, AI‑powered cloud and managed service platforms.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  XMAxma.co.ukHQ: HQ not recorded; location: Nottingham, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Nottingham, United Kingdom | 501-1,000 | Exact match | 585 contacts → |
“Unlock your potential with XMA.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  ONNEConnecgroup.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 580 contacts → |
“Onnec is a leading partner for IT Infrastructure design, installation and operational support services.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Internet Initiative Japan IIJiij.ad.jpHQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 540 contacts → |
“Ever since its establishment in 1992 as the first Japanese Internet Service Provider, IIJ has been taking pioneering steps in the field of Internet technology.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Maintech, Incorporatedmaintech.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 529 contacts → |
“Maintech: A trusted global partner for IT Infrastructure Solutions and Managed Services, leveraging over 50 years of experience to empower businesses worldwide.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Redstone Converged Solutionsredstone.comHQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 452 contacts → |
“Redstone is now part of RedstoneConnect PLC.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Trustmarquetrustmarque.comHQ: HQ not recorded; location: York, United KingdomReported employees: 501-1,000 | HQ not recorded; location: York, United Kingdom | 501-1,000 | Exact match | 422 contacts → |
“Trustmarque delivers the value of technology to bring real-life impact.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Iomartiomart.comHQ: HQ not recorded; location: Glasgow, United KingdomReported employees: 201-500 | HQ not recorded; location: Glasgow, United Kingdom | 201-500 | Exact match | 422 contacts → |
“Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Colt Data Centre Servicescoltdatacentres.netHQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 421 contacts → |
“At Colt Data Centre Services, we aspire to our customers’ success, ensuring your growth is supported by the best infrastructure solution for your business’ unique vision.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Zenzerozenzero.co.ukHQ: HQ not recorded; location: Coventry, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Coventry, United Kingdom | 501-1,000 | Exact match | 403 contacts → |
“We believe successful businesses are underpinned by quality IT infrastructure.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Hashroothashroot.comHQ: HQ not recorded; location: Farnborough, United KingdomReported employees: 201-500 | HQ not recorded; location: Farnborough, United Kingdom | 201-500 | Exact match | 333 contacts → |
“HashRoot is an ISO 9001:2015 and 27001:2015 certified IT Service Provider specialized in providing Artificial Intelligence as a Service, Cloud & DevOps Services, Data Center and…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  prosource.itprosource.itHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 326 contacts → |
“prosource.it is a managed IT services provider with a particular focus on infrastructure, operational and project requirements across the corporate enterprise market.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  BOXXEboxxe.comHQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 289 contacts → |
“boxxe is a leading provider of hardware, software, and managed IT services for public and private sector organisations.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  ARO Technologyaro.techHQ: HQ not recorded; location: Aberdeen, United KingdomReported employees: 201-500 | HQ not recorded; location: Aberdeen, United Kingdom | 201-500 | Exact match | 258 contacts → |
“ARO is an award-winning IT Services and Solutions provider with almost 30 years of expertise in Cloud, Cyber Security, IT Collaboration, Data Centre Services, and Sustainability.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  ROC Technologiesroctechnologies.comHQ: HQ not recorded; location: United KingdomReported employees: 201-500 | HQ not recorded; location: United Kingdom | 201-500 | Exact match | 245 contacts → |
“Roc Technologies delivers transformational IT solutions to public and private sector organisations across the UK.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Sudlowssudlows.comHQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 230 contacts → |
“Sudlows is a multi-award winning Critical Infrastructures, Enterprise Services and Facilities Management specialist which provides a full range of technical services for…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Wanstorwanstor.comHQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 226 contacts → |
“Wanstor: Experience First | AI Fluent | Secure by Default Wanstor is a trusted Managed IT Services company that helps ambitious organisations leverage technology to achieve better…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,040 company matches
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Enterprise IT infrastructure companies: dataset insights
September 2, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
1,984 records in the displayed employee bands.
56 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 2, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Enterprise IT infrastructure companies by metro
Questions about this company list
What does Exact match mean for enterprise IT infrastructure companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many enterprise IT infrastructure companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 2,040 matching company records, 38,240 tracked contacts and 13,109 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 2, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Enterprise IT infrastructure companies by geography
- Enterprise IT infrastructure companies based in the United States
- Enterprise IT infrastructure companies based in Brazil
- Enterprise IT infrastructure companies based in Germany
- Enterprise IT infrastructure companies based in France
- Enterprise IT infrastructure companies based in Canada
- Enterprise IT infrastructure companies based in Australia
- Enterprise IT infrastructure companies based in Italy
- Enterprise IT infrastructure companies based in Spain
- Enterprise IT infrastructure companies based in South Africa
- Enterprise IT infrastructure companies based in the Netherlands
- Enterprise IT infrastructure companies based in Mexico
- Enterprise IT infrastructure companies based in Poland
Cite this list
RevenueBase Data Team. Top 25 enterprise IT infrastructure companies based in the United Kingdom. Snapshot: September 2, 2026. https://revenuebase.ai/companies/enterprise-it-infrastructure-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Enterprise IT infrastructure companies based in the United States
- Enterprise IT infrastructure companies based in Brazil
- Enterprise IT infrastructure companies based in Germany
- Enterprise IT infrastructure companies based in France
- Enterprise IT infrastructure companies based in Canada
- Enterprise IT infrastructure companies based in Australia
Company intelligence · public preview
Top 25 enterprise IT infrastructure companies based in the United Kingdom
RevenueBase records 2,040 matching company records for enterprise IT infrastructure companies based in the United Kingdom, with 38,240 tracked contacts and 13,109 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 2, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 enterprise IT infrastructure companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Softcatsoftcat.com HQ: HQ not recorded; location: Whiteley, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Whiteley, United Kingdom | 1,001-5,000 | Exact match | 2,873 contacts → |
“Softcat is a leading provider of IT infrastructure to corporate and public sectors.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Kelly Groupkelly.co.uk HQ: HQ not recorded; location: Wembley, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Wembley, United Kingdom | 1,001-5,000 | Exact match | 1,059 contacts → |
“Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sada, An Insight Companyinsight.com HQ: HQ not recorded; location: Poole, United KingdomReported employees: 10001+ | HQ not recorded; location: Poole, United Kingdom | 10001+ | Exact match | 872 contacts → |
“Insight is a Fortune 500 global Solutions Integrator helping organizations accelerate their digital journey and maximize the value of technology.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Nasstarnasstar.com HQ: HQ not recorded; location: Wakefield, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Wakefield, United Kingdom | 1,001-5,000 | Exact match | 841 contacts → |
“Complexity isn’t the enemy.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Claranetclaranet.co.uk HQ: HQ not recorded; location: Warrington, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Warrington, United Kingdom | 1,001-5,000 | Exact match | 816 contacts → |
“Claranet modernise and run critical applications and infrastructure.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Bytes Software Servicesbytes.co.uk HQ: HQ not recorded; location: Portsmouth, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Portsmouth, United Kingdom | 501-1,000 | Exact match | 784 contacts → |
“Bytes is a leading provider of world-class IT solutions.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Exponential-Eexponential-e.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 661 contacts → |
“Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Ahana Systems And Solutions Pvt. LTDahanait.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 645 contacts → |
“Fifteen years ago, Ahana began with a simple belief: technology should enable growth, not create complexity.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Node4node4.co.uk HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 624 contacts → |
“Node4 helps businesses achieve more with secure, AI‑powered cloud and managed service platforms.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | XMAxma.co.uk HQ: HQ not recorded; location: Nottingham, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Nottingham, United Kingdom | 501-1,000 | Exact match | 585 contacts → |
“Unlock your potential with XMA.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | ONNEConnecgroup.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 580 contacts → |
“Onnec is a leading partner for IT Infrastructure design, installation and operational support services.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Internet Initiative Japan IIJiij.ad.jp HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 540 contacts → |
“Ever since its establishment in 1992 as the first Japanese Internet Service Provider, IIJ has been taking pioneering steps in the field of Internet technology.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Maintech, Incorporatedmaintech.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 529 contacts → |
“Maintech: A trusted global partner for IT Infrastructure Solutions and Managed Services, leveraging over 50 years of experience to empower businesses worldwide.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Redstone Converged Solutionsredstone.com HQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 452 contacts → |
“Redstone is now part of RedstoneConnect PLC.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Trustmarquetrustmarque.com HQ: HQ not recorded; location: York, United KingdomReported employees: 501-1,000 | HQ not recorded; location: York, United Kingdom | 501-1,000 | Exact match | 422 contacts → |
“Trustmarque delivers the value of technology to bring real-life impact.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Iomartiomart.com HQ: HQ not recorded; location: Glasgow, United KingdomReported employees: 201-500 | HQ not recorded; location: Glasgow, United Kingdom | 201-500 | Exact match | 422 contacts → |
“Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Colt Data Centre Servicescoltdatacentres.net HQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 421 contacts → |
“At Colt Data Centre Services, we aspire to our customers’ success, ensuring your growth is supported by the best infrastructure solution for your business’ unique vision.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Zenzerozenzero.co.uk HQ: HQ not recorded; location: Coventry, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Coventry, United Kingdom | 501-1,000 | Exact match | 403 contacts → |
“We believe successful businesses are underpinned by quality IT infrastructure.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Hashroothashroot.com HQ: HQ not recorded; location: Farnborough, United KingdomReported employees: 201-500 | HQ not recorded; location: Farnborough, United Kingdom | 201-500 | Exact match | 333 contacts → |
“HashRoot is an ISO 9001:2015 and 27001:2015 certified IT Service Provider specialized in providing Artificial Intelligence as a Service, Cloud & DevOps Services, Data Center and…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | prosource.itprosource.it HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 326 contacts → |
“prosource.it is a managed IT services provider with a particular focus on infrastructure, operational and project requirements across the corporate enterprise market.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | BOXXEboxxe.com HQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 289 contacts → |
“boxxe is a leading provider of hardware, software, and managed IT services for public and private sector organisations.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | ARO Technologyaro.tech HQ: HQ not recorded; location: Aberdeen, United KingdomReported employees: 201-500 | HQ not recorded; location: Aberdeen, United Kingdom | 201-500 | Exact match | 258 contacts → |
“ARO is an award-winning IT Services and Solutions provider with almost 30 years of expertise in Cloud, Cyber Security, IT Collaboration, Data Centre Services, and Sustainability.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | ROC Technologiesroctechnologies.com HQ: HQ not recorded; location: United KingdomReported employees: 201-500 | HQ not recorded; location: United Kingdom | 201-500 | Exact match | 245 contacts → |
“Roc Technologies delivers transformational IT solutions to public and private sector organisations across the UK.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Sudlowssudlows.com HQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 230 contacts → |
“Sudlows is a multi-award winning Critical Infrastructures, Enterprise Services and Facilities Management specialist which provides a full range of technical services for…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Wanstorwanstor.com HQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 226 contacts → |
“Wanstor: Experience First | AI Fluent | Secure by Default Wanstor is a trusted Managed IT Services company that helps ambitious organisations leverage technology to achieve better…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Enterprise IT infrastructure companies: dataset insights
September 2, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
1,984 records in the displayed employee bands.
56 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 2, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Enterprise IT infrastructure companies by metro
Questions about this company list
What does Exact match mean for enterprise IT infrastructure companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many enterprise IT infrastructure companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 2,040 matching company records, 38,240 tracked contacts and 13,109 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 2, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Enterprise IT infrastructure companies by geography
- Enterprise IT infrastructure companies based in the United States
- Enterprise IT infrastructure companies based in Brazil
- Enterprise IT infrastructure companies based in Germany
- Enterprise IT infrastructure companies based in France
- Enterprise IT infrastructure companies based in Canada
- Enterprise IT infrastructure companies based in Australia
- Enterprise IT infrastructure companies based in Italy
- Enterprise IT infrastructure companies based in Spain
- Enterprise IT infrastructure companies based in South Africa
- Enterprise IT infrastructure companies based in the Netherlands
- Enterprise IT infrastructure companies based in Mexico
- Enterprise IT infrastructure companies based in Poland
Cite this list
RevenueBase Data Team. Top 25 enterprise IT infrastructure companies based in the United Kingdom. Snapshot: September 2, 2026. https://revenuebase.ai/companies/enterprise-it-infrastructure-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Enterprise IT infrastructure companies based in the United States
- Enterprise IT infrastructure companies based in Brazil
- Enterprise IT infrastructure companies based in Germany
- Enterprise IT infrastructure companies based in France
- Enterprise IT infrastructure companies based in Canada
- Enterprise IT infrastructure companies based in Australia