Company lists · Data refreshed September 2026
Top 25 Tier 1 IT companies based in the United Kingdom
RevenueBase identified 164 company matches for tier 1 IT companies associated with the United Kingdom as of September 2026 and tracks 4,443 professional contacts across them, including 1,244 with verified work emails. London is the largest hub.
This list covers company matches for tier 1 IT 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 21, 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 tier 1 IT companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,417 contacts → | ||||
Exact match “K2 Partnering Solutions is a global provider of unique end-to-end consultative solutions in the enterprise applications, AI, and cloud space.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 742 contacts → | ||||
Exact match “Kerv exists to use the power of technology for good: for our customers, our people, our communities and the planet.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 378 contacts → | ||||
Exact match “HCLTech is a global technology company, home to more than people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 199 contacts → | ||||
Exact match “Genese Solution is a technology service company leading digital transformation with roots in Cloud Computing, Cloud Native Software Development & Cloud Security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 53 contacts → | ||||
Exact match “At Sci-Net Business Solutions (now part of the ANS Group) we are passionate and driven by the success of our customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 47 contacts → | ||||
Exact match “N Consulting is a global professional services company with leading capabilities in data analytics, digital, cloud and security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 47 contacts → | ||||
Exact match “Meridian IT has been a leader in the UK’s enterprise technology sector since 1979 because we’ve always put people first.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 42 contacts → | ||||
Exact match “SoftwareOne is a leading global software and cloud solutions provider that is redefining how companies build, buy and manage everything in the cloud.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 38 contacts → | ||||
Exact match “Nexucon is a global firm that offers technology consulting and services to clients from diverse industries.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 35 contacts → | ||||
Exact match “HP Infosystem is a comprehensive consulting and IT Services provider of absolute tech-business solutions having strong expertise and extensive technical skills with global…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 25 contacts → | ||||
Exact match “UCI is a global professional services company with leading capabilities in digital, cloud and security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 22 contacts → | ||||
Exact match “NTT DATA, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 20 contacts → | ||||
Exact match “Logica Soft Ltd is innovative global ISO 9001:2015 certified IT Company, unique provider of IT Consulting Services / Solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 15 contacts → | ||||
Exact match “iOCO UK, part of the EOH group and a leader in technology services, crafts innovative solutions that anticipate and respond to the challenges of a rapidly evolving world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 7 contacts → | ||||
Exact match “Part of the FourNet group of companies, we are one of the UK's fastest-growing tech companies and help organisations harness technology to digitally transform to overcome the…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 6 contacts → | ||||
Exact match “We're not just another IT company-we're pioneers in Cloud, DevOps and Technology.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 6 contacts → | ||||
Exact match “Providing BEST Quality IT Services” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 5 contacts → | ||||
Exact match “Amita (UK) Ltd is a IT Services company based in Middlewich, United Kingdom.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match “TARGET IT SERVICES (BOURNEMOUTH) LTD is a company based out of 1ST FLOOR, Bournemouth, Dorset, United Kingdom.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “Professional Computer Services” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “LMD SOLUTIONS LTD is an information technology and services company based out of the United Kingdom.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “Enterprise Software Development” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match “IT Service Provider in Ivybridge” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 2 contacts → | ||||
Exact match “As a specialist provider of software, technology and cloud solutions, we are always on the lookout for the latest trends and how they can benefit our clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “NAVIZONE is a software and services company” Recorded in the RevenueBase company graph · Sep 21, 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 “tier 1 IT 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 164 tier 1 IT companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 1,244 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Tier 1 IT companies based in the United Kingdom at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 164 companies.
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 “tier 1 IT 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 1,244 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 21, 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.
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 “tier 1 IT companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many tier 1 IT companies are there based in the United Kingdom?
RevenueBase identified 164 company matches for tier 1 IT 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?
K2 Partnering Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most tier 1 IT companies?
London leads with 65 company records, followed by Reading (4) and Leeds (3).
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 1,244 professional contacts with verified work emails tracked across these 164 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 164 tier 1 IT companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Tier 1 IT companies by geography
- Tier 1 IT companies based in Ahmedabad, India
- Tier 1 IT companies based in Bangalore, India
- Tier 1 IT companies based in Chennai, India
- Tier 1 IT companies based in Hyderabad, India
- Tier 1 IT companies based in Mumbai, India
- Tier 1 IT companies based in New Delhi, India
- Tier 1 IT companies based in Noida, India
- Tier 1 IT companies based in Pune, India
- Tier 1 IT companies based in Australia
- Tier 1 IT companies based in Brazil
- Tier 1 IT companies based in Canada
- Tier 1 IT companies based in China
Browse the directory
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
- Tier 1 IT companies based in Ahmedabad, India
- Tier 1 IT companies based in Bangalore, India
- Tier 1 IT companies based in Chennai, India
- Tier 1 IT companies based in Hyderabad, India
- Tier 1 IT companies based in Mumbai, India
- Tier 1 IT companies based in New Delhi, India
Company intelligence · public preview
Top 25 tier 1 IT 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 164 matching company records for tier 1 IT companies based in the United Kingdom, with 4,443 tracked contacts and 1,244 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 21, 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 tier 1 IT 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 |  K2 Partnering Solutionsk2partnering.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,417 contacts → |
“K2 Partnering Solutions is a global provider of unique end-to-end consultative solutions in the enterprise applications, AI, and cloud space.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  KERVkerv.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 742 contacts → |
“Kerv exists to use the power of technology for good: for our customers, our people, our communities and the planet.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Hcltechhcltech.comHQ: Egham, United KingdomReported employees: 10001+ | Egham, United Kingdom | 10001+ | Exact match | 378 contacts → |
“HCLTech is a global technology company, home to more than people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Genese Solutiongenesesolution.comHQ: Plymouth, United KingdomReported employees: 51-200 | Plymouth, United Kingdom | 51-200 | Exact match | 199 contacts → |
“Genese Solution is a technology service company leading digital transformation with roots in Cloud Computing, Cloud Native Software Development & Cloud Security.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sci-Net Business Solutionssci-net.co.ukHQ: Chipping Norton, United KingdomReported employees: 11-50 | Chipping Norton, United Kingdom | 11-50 | Exact match | 53 contacts → |
“At Sci-Net Business Solutions (now part of the ANS Group) we are passionate and driven by the success of our customers.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  N Consulting Globaln-cons.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 47 contacts → |
“N Consulting is a global professional services company with leading capabilities in data analytics, digital, cloud and security.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Meridian IT UKmeridianit.co.ukHQ: Henley In Arden, United KingdomReported employees: 51-200 | Henley In Arden, United Kingdom | 51-200 | Exact match | 47 contacts → |
“Meridian IT has been a leader in the UK’s enterprise technology sector since 1979 because we’ve always put people first.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Softwareone UKsoftwareone.comHQ: Wimbledon, United KingdomReported employees: Not recorded | Wimbledon, United Kingdom | Not recorded | Exact match | 42 contacts → |
“SoftwareOne is a leading global software and cloud solutions provider that is redefining how companies build, buy and manage everything in the cloud.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Nexucon Consultancy Services PVT LTDnexucon.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 38 contacts → |
“Nexucon is a global firm that offers technology consulting and services to clients from diverse industries.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  HP Infosystem, LLChpinfosystem.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 35 contacts → |
“HP Infosystem is a comprehensive consulting and IT Services provider of absolute tech-business solutions having strong expertise and extensive technical skills with global…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | UCIuci.ai HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 25 contacts → |
“UCI is a global professional services company with leading capabilities in digital, cloud and security.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  NTT Data Uk&inttdata.comHQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 22 contacts → |
“NTT DATA, Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Logica Soft Limitedlogicasoft.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 20 contacts → |
“Logica Soft Ltd is innovative global ISO 9001:2015 certified IT Company, unique provider of IT Consulting Services / Solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Ioco UKioco.ukHQ: Reading, United KingdomReported employees: 1,001-5,000 | Reading, United Kingdom | 1,001-5,000 | Exact match | 15 contacts → |
“iOCO UK, part of the EOH group and a leader in technology services, crafts innovative solutions that anticipate and respond to the challenges of a rapidly evolving world.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Nowcommnowcomm.comHQ: United KingdomReported employees: 11-50 | United Kingdom | 11-50 | Exact match | 7 contacts → |
“Part of the FourNet group of companies, we are one of the UK's fastest-growing tech companies and help organisations harness technology to digitally transform to overcome the…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Magicornmagicorn.coHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 6 contacts → |
“We're not just another IT company-we're pioneers in Cloud, DevOps and Technology.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Smart Machine Solutionssmartmachinesolutions.co.ukHQ: Bristol, United KingdomReported employees: 1-10 | Bristol, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Providing BEST Quality IT Services” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Amita UK LTDamita.co.ukHQ: Middlewich, United KingdomReported employees: 11-50 | Middlewich, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Amita (UK) Ltd is a IT Services company based in Middlewich, United Kingdom.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Target IT Services Bournemouth LTDtarget-its.co.ukHQ: Bournemouth, United KingdomReported employees: 1-10 | Bournemouth, United Kingdom | 1-10 | Exact match | 5 contacts → |
“TARGET IT SERVICES (BOURNEMOUTH) LTD is a company based out of 1ST FLOOR, Bournemouth, Dorset, United Kingdom.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | T2 Computer Servicest2cs.uk HQ: Burnley, United KingdomReported employees: 1-10 | Burnley, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Professional Computer Services” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | LMD Solutions LTDlmdsolutionsltd.com HQ: East Sussex, United KingdomReported employees: 1-10 | East Sussex, United Kingdom | 1-10 | Exact match | 3 contacts → |
“LMD SOLUTIONS LTD is an information technology and services company based out of the United Kingdom.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | SMK Digital LTDsmkdigital.co.uk HQ: Tewkesbury, United KingdomReported employees: 1-10 | Tewkesbury, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Enterprise Software Development” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Dan's Computer Servicesdanscomputerservices.com HQ: Ivybridge, United KingdomReported employees: 1-10 | Ivybridge, United Kingdom | 1-10 | Exact match | 2 contacts → |
“IT Service Provider in Ivybridge” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Stac Solutions LTDstacsolutions.ioHQ: Sevenoaks, United KingdomReported employees: 1-10 | Sevenoaks, United Kingdom | 1-10 | Exact match | 2 contacts → |
“As a specialist provider of software, technology and cloud solutions, we are always on the lookout for the latest trends and how they can benefit our clients.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Navizonenavizone.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 1 contacts → |
“NAVIZONE is a software and services company” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 164 company matches
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Tier 1 IT companies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
162 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 164 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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 21, 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 ↗
Questions about this company list
What does Exact match mean for tier 1 IT 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 tier 1 IT companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 164 matching company records, 4,443 tracked contacts and 1,244 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 21, 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
Tier 1 IT companies by geography
- Tier 1 IT companies based in Ahmedabad, India
- Tier 1 IT companies based in Bangalore, India
- Tier 1 IT companies based in Chennai, India
- Tier 1 IT companies based in Hyderabad, India
- Tier 1 IT companies based in Mumbai, India
- Tier 1 IT companies based in New Delhi, India
- Tier 1 IT companies based in Noida, India
- Tier 1 IT companies based in Pune, India
- Tier 1 IT companies based in Australia
- Tier 1 IT companies based in Brazil
- Tier 1 IT companies based in Canada
- Tier 1 IT companies based in China
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 tier 1 IT companies based in the United Kingdom. Snapshot: September 21, 2026. https://revenuebase.ai/companies/tier-1-it-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
- Tier 1 IT companies based in Ahmedabad, India
- Tier 1 IT companies based in Bangalore, India
- Tier 1 IT companies based in Chennai, India
- Tier 1 IT companies based in Hyderabad, India
- Tier 1 IT companies based in Mumbai, India
- Tier 1 IT companies based in New Delhi, India
Company intelligence · public preview
Top 25 tier 1 IT companies based in the United Kingdom
RevenueBase records 164 matching company records for tier 1 IT companies based in the United Kingdom, with 4,443 tracked contacts and 1,244 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 21, 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 tier 1 IT 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 | K2 Partnering Solutionsk2partnering.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,417 contacts → |
“K2 Partnering Solutions is a global provider of unique end-to-end consultative solutions in the enterprise applications, AI, and cloud space.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | KERVkerv.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 742 contacts → |
“Kerv exists to use the power of technology for good: for our customers, our people, our communities and the planet.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Hcltechhcltech.com HQ: Egham, United KingdomReported employees: 10001+ | Egham, United Kingdom | 10001+ | Exact match | 378 contacts → |
“HCLTech is a global technology company, home to more than people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Genese Solutiongenesesolution.com HQ: Plymouth, United KingdomReported employees: 51-200 | Plymouth, United Kingdom | 51-200 | Exact match | 199 contacts → |
“Genese Solution is a technology service company leading digital transformation with roots in Cloud Computing, Cloud Native Software Development & Cloud Security.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sci-Net Business Solutionssci-net.co.uk HQ: Chipping Norton, United KingdomReported employees: 11-50 | Chipping Norton, United Kingdom | 11-50 | Exact match | 53 contacts → |
“At Sci-Net Business Solutions (now part of the ANS Group) we are passionate and driven by the success of our customers.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | N Consulting Globaln-cons.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 47 contacts → |
“N Consulting is a global professional services company with leading capabilities in data analytics, digital, cloud and security.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Meridian IT UKmeridianit.co.uk HQ: Henley In Arden, United KingdomReported employees: 51-200 | Henley In Arden, United Kingdom | 51-200 | Exact match | 47 contacts → |
“Meridian IT has been a leader in the UK’s enterprise technology sector since 1979 because we’ve always put people first.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Softwareone UKsoftwareone.com HQ: Wimbledon, United KingdomReported employees: Not recorded | Wimbledon, United Kingdom | Not recorded | Exact match | 42 contacts → |
“SoftwareOne is a leading global software and cloud solutions provider that is redefining how companies build, buy and manage everything in the cloud.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Nexucon Consultancy Services PVT LTDnexucon.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 38 contacts → |
“Nexucon is a global firm that offers technology consulting and services to clients from diverse industries.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HP Infosystem, LLChpinfosystem.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 35 contacts → |
“HP Infosystem is a comprehensive consulting and IT Services provider of absolute tech-business solutions having strong expertise and extensive technical skills with global…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | UCIuci.ai HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 25 contacts → |
“UCI is a global professional services company with leading capabilities in digital, cloud and security.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | NTT Data Uk&inttdata.com HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 22 contacts → |
“NTT DATA, Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Logica Soft Limitedlogicasoft.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 20 contacts → |
“Logica Soft Ltd is innovative global ISO 9001:2015 certified IT Company, unique provider of IT Consulting Services / Solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Ioco UKioco.uk HQ: Reading, United KingdomReported employees: 1,001-5,000 | Reading, United Kingdom | 1,001-5,000 | Exact match | 15 contacts → |
“iOCO UK, part of the EOH group and a leader in technology services, crafts innovative solutions that anticipate and respond to the challenges of a rapidly evolving world.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Nowcommnowcomm.com HQ: United KingdomReported employees: 11-50 | United Kingdom | 11-50 | Exact match | 7 contacts → |
“Part of the FourNet group of companies, we are one of the UK's fastest-growing tech companies and help organisations harness technology to digitally transform to overcome the…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Magicornmagicorn.co HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 6 contacts → |
“We're not just another IT company-we're pioneers in Cloud, DevOps and Technology.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Smart Machine Solutionssmartmachinesolutions.co.uk HQ: Bristol, United KingdomReported employees: 1-10 | Bristol, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Providing BEST Quality IT Services” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Amita UK LTDamita.co.uk HQ: Middlewich, United KingdomReported employees: 11-50 | Middlewich, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Amita (UK) Ltd is a IT Services company based in Middlewich, United Kingdom.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Target IT Services Bournemouth LTDtarget-its.co.uk HQ: Bournemouth, United KingdomReported employees: 1-10 | Bournemouth, United Kingdom | 1-10 | Exact match | 5 contacts → |
“TARGET IT SERVICES (BOURNEMOUTH) LTD is a company based out of 1ST FLOOR, Bournemouth, Dorset, United Kingdom.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | T2 Computer Servicest2cs.uk HQ: Burnley, United KingdomReported employees: 1-10 | Burnley, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Professional Computer Services” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | LMD Solutions LTDlmdsolutionsltd.com HQ: East Sussex, United KingdomReported employees: 1-10 | East Sussex, United Kingdom | 1-10 | Exact match | 3 contacts → |
“LMD SOLUTIONS LTD is an information technology and services company based out of the United Kingdom.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | SMK Digital LTDsmkdigital.co.uk HQ: Tewkesbury, United KingdomReported employees: 1-10 | Tewkesbury, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Enterprise Software Development” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Dan's Computer Servicesdanscomputerservices.com HQ: Ivybridge, United KingdomReported employees: 1-10 | Ivybridge, United Kingdom | 1-10 | Exact match | 2 contacts → |
“IT Service Provider in Ivybridge” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Stac Solutions LTDstacsolutions.io HQ: Sevenoaks, United KingdomReported employees: 1-10 | Sevenoaks, United Kingdom | 1-10 | Exact match | 2 contacts → |
“As a specialist provider of software, technology and cloud solutions, we are always on the lookout for the latest trends and how they can benefit our clients.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Navizonenavizone.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 1 contacts → |
“NAVIZONE is a software and services company” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 164 company matches
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Tier 1 IT companies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
162 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 164 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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 21, 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 ↗
Questions about this company list
What does Exact match mean for tier 1 IT 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 tier 1 IT companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 164 matching company records, 4,443 tracked contacts and 1,244 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 21, 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.
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Cite this list
RevenueBase Data Team. Top 25 tier 1 IT companies based in the United Kingdom. Snapshot: September 21, 2026. https://revenuebase.ai/companies/tier-1-it-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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