Company lists · Data refreshed September 2026
Top 25 Legacy system modernization based in the United Kingdom
RevenueBase identified 605 company matches for legacy system modernization associated with the United Kingdom as of September 2026 and tracks 7,110 professional contacts across them, including 2,800 with verified work emails. London is the largest hub.
This list covers company matches for legacy system modernization 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 20, 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 legacy system modernization based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 748 contacts → | ||||
Exact match “TSG: The Technology Partner for Ambitious Businesses We're not a reseller.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 628 contacts → | ||||
Exact match “Node4 helps businesses achieve more with secure, AI‑powered cloud and managed service platforms.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 538 contacts → | ||||
Exact match “Unlock your potential with XMA.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 326 contacts → | ||||
Exact match “As our name suggests, our customers rely on us in providing suitable technology inputs to support their business goals.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 215 contacts → | ||||
Exact match “We are an IT business with a difference.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 197 contacts → | ||||
Exact match “Our team has decades of experience in delivering complex, challenging projects that help clients across the private, public and not-for-profit sectors do business better.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 93 contacts → | ||||
Exact match “ramsac provide so much more than just IT support.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 87 contacts → | ||||
Exact match “At Constor Solutions, we believe that technology is the backbone of a successful business.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 82 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 78 contacts → | ||||
Exact match “We offer a broad portfolio of IT and consulting services covering Governance and Strategy, Cloud, Data, Cybersecurity, Infrastructure and Applications, Managed IT and Security.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 75 contacts → | ||||
Exact match “Headquartered at Reading, Berkshire in United Kingdom, Bit Wave Solutions enables global businesses to build their future by directing clients’ innovation & customization agenda.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 72 contacts → | ||||
Exact match “ADM Computing is an independent, family-owned IT services provider headquartered in Canterbury, supporting organisations across Kent, London and the South East since 1984.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 63 contacts → | ||||
Exact match “Empowering through digital transformation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 60 contacts → | ||||
Exact match “Northdoor is an award-winning London-based IT consultancy and managed services provider with over 30 years’ experience.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 54 contacts → | ||||
Exact match “CloudPlexo is a global technology consulting firm helping organizations transform, innovate, and build resilience through Cloud, AI, and Cybersecurity.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 53 contacts → | ||||
Exact match “At GSC Technologies, we are architects of digital transformation, empowering businesses with innovative IT solutions that drive growth and efficiency.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 52 contacts → | ||||
Exact match “Diegesis is a business technology and IT systems integration company that specialises in Decision Support Solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 50 contacts → | ||||
Exact match “Eclature Technologies stands for engineering innovation, excellence, and reliability.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 48 contacts → | ||||
Exact match “Global Vibe Technologies Ltd Empowering Growth Through Strategic IT Solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 47 contacts → | ||||
Exact match “It’s all about making a difference The world of IT is an ever-evolving industry with new developments in technology emerging constantly.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 45 contacts → | ||||
Exact match “Wait, can we actually do that?" is our favourite thing to hear.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 41 contacts → | ||||
Exact match “Forge Technologies is a digital IT services business focusing on four technology pillars; Digital App & Innovation, Future Workplace, Cloud Optimisation and Network Transformation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 39 contacts → | ||||
Exact match “At Holker IT our aim is to improve our clients’ businesses through strategic advice, implementation and on-going support of IT systems and processes, from single to multi-server…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 38 contacts → | ||||
Exact match “WhiteSpider is a UK-based IT services company with a global reach, specialising in enterprise infrastructure transformation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 34 contacts → | ||||
Exact match “When IT feels hard work, frustrating, or unreliable, it slows everything down.” Recorded in the RevenueBase company graph · Sep 20, 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 “legacy system modernization”. 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 605 legacy system modernization based in the United Kingdom
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Legacy system modernization based in the United Kingdom at a glance
As of Sep 20, 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 605 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 “legacy system modernization” 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 2,800 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 20, 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 “legacy system modernization”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many legacy system modernization are there based in the United Kingdom?
RevenueBase identified 605 company matches for legacy system modernization 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?
TSG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most legacy system modernization?
London leads with 184 company records, followed by Manchester (18) and Leeds (16).
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 2,800 professional contacts with verified work emails tracked across these 605 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 605 legacy system modernization based in the United Kingdom. Start with a free account, no credit card.
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Legacy system modernization by geography
- Legacy system modernization based in Brisbane, Australia
- Legacy system modernization based in Melbourne, Australia
- Legacy system modernization based in Sydney, Australia
- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil
- Legacy system modernization based in Sao Paulo, Brazil
- Legacy system modernization based in Calgary, Canada
- Legacy system modernization based in Mississauga, Canada
- Legacy system modernization based in Montreal, Canada
- Legacy system modernization based in Ottawa, Canada
- Legacy system modernization based in Toronto, Canada
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.
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- Legacy system modernization based in Brisbane, Australia
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- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil
Company intelligence · public preview
Top 25 legacy system modernization 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 605 matching company records for legacy system modernization based in the United Kingdom, with 7,110 tracked contacts and 2,800 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 20, 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 legacy system modernization 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 |  TSGtsg.comHQ: Gateshead, United KingdomReported employees: 201-500 | Gateshead, United Kingdom | 201-500 | Exact match | 748 contacts → |
“TSG: The Technology Partner for Ambitious Businesses We're not a reseller.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Node4node4.co.ukHQ: Derby, United KingdomReported employees: 1,001-5,000 | Derby, United Kingdom | 1,001-5,000 | Exact match | 628 contacts → |
“Node4 helps businesses achieve more with secure, AI‑powered cloud and managed service platforms.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  XMAxma.co.ukHQ: Reading, United KingdomReported employees: 501-1,000 | Reading, United Kingdom | 501-1,000 | Exact match | 538 contacts → |
“Unlock your potential with XMA.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Reliance Infosystemsreliance.systemsHQ: West End, United KingdomReported employees: 201-500 | West End, United Kingdom | 201-500 | Exact match | 326 contacts → |
“As our name suggests, our customers rely on us in providing suitable technology inputs to support their business goals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Waterstonswaterstons.comHQ: Durham, United KingdomReported employees: 201-500 | Durham, United Kingdom | 201-500 | Exact match | 215 contacts → |
“We are an IT business with a difference.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  ITPSitps.co.ukHQ: Chester Le Street, United KingdomReported employees: 51-200 | Chester Le Street, United Kingdom | 51-200 | Exact match | 197 contacts → |
“Our team has decades of experience in delivering complex, challenging projects that help clients across the private, public and not-for-profit sectors do business better.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Ramsacramsac.comHQ: Guildford, United KingdomReported employees: 51-200 | Guildford, United Kingdom | 51-200 | Exact match | 93 contacts → |
“ramsac provide so much more than just IT support.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Constor Solutionsconstor.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 87 contacts → |
“At Constor Solutions, we believe that technology is the backbone of a successful business.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Symploresymplore.com HQ: Hounslow, United KingdomReported employees: 51-200 | Hounslow, United Kingdom | 51-200 | Exact match | 82 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 |  Baseel Partnersbaseel.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 78 contacts → |
“We offer a broad portfolio of IT and consulting services covering Governance and Strategy, Cloud, Data, Cybersecurity, Infrastructure and Applications, Managed IT and Security.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  BIT Wave Solutions Limitedbitwavesolutions.comHQ: Reading, United KingdomReported employees: 11-50 | Reading, United Kingdom | 11-50 | Exact match | 75 contacts → |
“Headquartered at Reading, Berkshire in United Kingdom, Bit Wave Solutions enables global businesses to build their future by directing clients’ innovation & customization agenda.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  ADM Computingadm-computing.co.ukHQ: Canterbury, United KingdomReported employees: 51-200 | Canterbury, United Kingdom | 51-200 | Exact match | 72 contacts → |
“ADM Computing is an independent, family-owned IT services provider headquartered in Canterbury, supporting organisations across Kent, London and the South East since 1984.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Forfusion LTDforfusion.comHQ: Newcastle Upon Tyne, United KingdomReported employees: 51-200 | Newcastle Upon Tyne, United Kingdom | 51-200 | Exact match | 63 contacts → |
“Empowering through digital transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Northdoor PLCnorthdoor.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Northdoor is an award-winning London-based IT consultancy and managed services provider with over 30 years’ experience.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Cloudplexocloudplexo.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 54 contacts → |
“CloudPlexo is a global technology consulting firm helping organizations transform, innovate, and build resilience through Cloud, AI, and Cybersecurity.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  GSC Technologies Limitedgsc-technologies.comHQ: Dartford, United KingdomReported employees: 201-500 | Dartford, United Kingdom | 201-500 | Exact match | 53 contacts → |
“At GSC Technologies, we are architects of digital transformation, empowering businesses with innovative IT solutions that drive growth and efficiency.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Diegesis Limiteddiegesis.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 52 contacts → |
“Diegesis is a business technology and IT systems integration company that specialises in Decision Support Solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Eclature Technologieseclature.comHQ: Daresbury, United KingdomReported employees: 201-500 | Daresbury, United Kingdom | 201-500 | Exact match | 50 contacts → |
“Eclature Technologies stands for engineering innovation, excellence, and reliability.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Global Vibe Technologies LTDgvibetech.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 48 contacts → |
“Global Vibe Technologies Ltd Empowering Growth Through Strategic IT Solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Kinetic IT LTDkineticit.netHQ: Erith, United KingdomReported employees: 11-50 | Erith, United Kingdom | 11-50 | Exact match | 47 contacts → |
“It’s all about making a difference The world of IT is an ever-evolving industry with new developments in technology emerging constantly.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Elevation Serviceselevationservices.co.ukHQ: Manchester, United KingdomReported employees: 51-200 | Manchester, United Kingdom | 51-200 | Exact match | 45 contacts → |
“Wait, can we actually do that?" is our favourite thing to hear.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Forge Technologiesforge-technologies.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 41 contacts → |
“Forge Technologies is a digital IT services business focusing on four technology pillars; Digital App & Innovation, Future Workplace, Cloud Optimisation and Network Transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Holker ITholkerit.co.ukHQ: Burnley, United KingdomReported employees: 11-50 | Burnley, United Kingdom | 11-50 | Exact match | 39 contacts → |
“At Holker IT our aim is to improve our clients’ businesses through strategic advice, implementation and on-going support of IT systems and processes, from single to multi-server…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Whitespiderwhitespider.comHQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 38 contacts → |
“WhiteSpider is a UK-based IT services company with a global reach, specialising in enterprise infrastructure transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Bespoke IT Solutions UKbespokeitsolutions.comHQ: Fleet, United KingdomReported employees: 11-50 | Fleet, United Kingdom | 11-50 | Exact match | 34 contacts → |
“When IT feels hard work, frustrating, or unreliable, it slows everything down.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 605 company matches
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Legacy system modernization: dataset insights
September 20, 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
603 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 605 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 20, 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 legacy system modernization?
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 legacy system modernization did RevenueBase find based in the United Kingdom?
The saved snapshot records 605 matching company records, 7,110 tracked contacts and 2,800 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 20, 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
Legacy system modernization by geography
- Legacy system modernization based in Brisbane, Australia
- Legacy system modernization based in Melbourne, Australia
- Legacy system modernization based in Sydney, Australia
- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil
- Legacy system modernization based in Sao Paulo, Brazil
- Legacy system modernization based in Calgary, Canada
- Legacy system modernization based in Mississauga, Canada
- Legacy system modernization based in Montreal, Canada
- Legacy system modernization based in Ottawa, Canada
- Legacy system modernization based in Toronto, Canada
Cite this list
RevenueBase Data Team. Top 25 legacy system modernization based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/legacy-system-modernization/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
- Legacy system modernization based in Brisbane, Australia
- Legacy system modernization based in Melbourne, Australia
- Legacy system modernization based in Sydney, Australia
- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil
Company intelligence · public preview
Top 25 legacy system modernization based in the United Kingdom
RevenueBase records 605 matching company records for legacy system modernization based in the United Kingdom, with 7,110 tracked contacts and 2,800 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 20, 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 legacy system modernization 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 | TSGtsg.com HQ: Gateshead, United KingdomReported employees: 201-500 | Gateshead, United Kingdom | 201-500 | Exact match | 748 contacts → |
“TSG: The Technology Partner for Ambitious Businesses We're not a reseller.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Node4node4.co.uk HQ: Derby, United KingdomReported employees: 1,001-5,000 | Derby, United Kingdom | 1,001-5,000 | Exact match | 628 contacts → |
“Node4 helps businesses achieve more with secure, AI‑powered cloud and managed service platforms.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | XMAxma.co.uk HQ: Reading, United KingdomReported employees: 501-1,000 | Reading, United Kingdom | 501-1,000 | Exact match | 538 contacts → |
“Unlock your potential with XMA.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Reliance Infosystemsreliance.systems HQ: West End, United KingdomReported employees: 201-500 | West End, United Kingdom | 201-500 | Exact match | 326 contacts → |
“As our name suggests, our customers rely on us in providing suitable technology inputs to support their business goals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Waterstonswaterstons.com HQ: Durham, United KingdomReported employees: 201-500 | Durham, United Kingdom | 201-500 | Exact match | 215 contacts → |
“We are an IT business with a difference.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | ITPSitps.co.uk HQ: Chester Le Street, United KingdomReported employees: 51-200 | Chester Le Street, United Kingdom | 51-200 | Exact match | 197 contacts → |
“Our team has decades of experience in delivering complex, challenging projects that help clients across the private, public and not-for-profit sectors do business better.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Ramsacramsac.com HQ: Guildford, United KingdomReported employees: 51-200 | Guildford, United Kingdom | 51-200 | Exact match | 93 contacts → |
“ramsac provide so much more than just IT support.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Constor Solutionsconstor.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 87 contacts → |
“At Constor Solutions, we believe that technology is the backbone of a successful business.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Symploresymplore.com HQ: Hounslow, United KingdomReported employees: 51-200 | Hounslow, United Kingdom | 51-200 | Exact match | 82 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | Baseel Partnersbaseel.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 78 contacts → |
“We offer a broad portfolio of IT and consulting services covering Governance and Strategy, Cloud, Data, Cybersecurity, Infrastructure and Applications, Managed IT and Security.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | BIT Wave Solutions Limitedbitwavesolutions.com HQ: Reading, United KingdomReported employees: 11-50 | Reading, United Kingdom | 11-50 | Exact match | 75 contacts → |
“Headquartered at Reading, Berkshire in United Kingdom, Bit Wave Solutions enables global businesses to build their future by directing clients’ innovation & customization agenda.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | ADM Computingadm-computing.co.uk HQ: Canterbury, United KingdomReported employees: 51-200 | Canterbury, United Kingdom | 51-200 | Exact match | 72 contacts → |
“ADM Computing is an independent, family-owned IT services provider headquartered in Canterbury, supporting organisations across Kent, London and the South East since 1984.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Forfusion LTDforfusion.com HQ: Newcastle Upon Tyne, United KingdomReported employees: 51-200 | Newcastle Upon Tyne, United Kingdom | 51-200 | Exact match | 63 contacts → |
“Empowering through digital transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Northdoor PLCnorthdoor.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Northdoor is an award-winning London-based IT consultancy and managed services provider with over 30 years’ experience.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Cloudplexocloudplexo.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 54 contacts → |
“CloudPlexo is a global technology consulting firm helping organizations transform, innovate, and build resilience through Cloud, AI, and Cybersecurity.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | GSC Technologies Limitedgsc-technologies.com HQ: Dartford, United KingdomReported employees: 201-500 | Dartford, United Kingdom | 201-500 | Exact match | 53 contacts → |
“At GSC Technologies, we are architects of digital transformation, empowering businesses with innovative IT solutions that drive growth and efficiency.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Diegesis Limiteddiegesis.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 52 contacts → |
“Diegesis is a business technology and IT systems integration company that specialises in Decision Support Solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Eclature Technologieseclature.com HQ: Daresbury, United KingdomReported employees: 201-500 | Daresbury, United Kingdom | 201-500 | Exact match | 50 contacts → |
“Eclature Technologies stands for engineering innovation, excellence, and reliability.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Global Vibe Technologies LTDgvibetech.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 48 contacts → |
“Global Vibe Technologies Ltd Empowering Growth Through Strategic IT Solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Kinetic IT LTDkineticit.net HQ: Erith, United KingdomReported employees: 11-50 | Erith, United Kingdom | 11-50 | Exact match | 47 contacts → |
“It’s all about making a difference The world of IT is an ever-evolving industry with new developments in technology emerging constantly.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Elevation Serviceselevationservices.co.uk HQ: Manchester, United KingdomReported employees: 51-200 | Manchester, United Kingdom | 51-200 | Exact match | 45 contacts → |
“Wait, can we actually do that?" is our favourite thing to hear.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Forge Technologiesforge-technologies.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 41 contacts → |
“Forge Technologies is a digital IT services business focusing on four technology pillars; Digital App & Innovation, Future Workplace, Cloud Optimisation and Network Transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Holker ITholkerit.co.uk HQ: Burnley, United KingdomReported employees: 11-50 | Burnley, United Kingdom | 11-50 | Exact match | 39 contacts → |
“At Holker IT our aim is to improve our clients’ businesses through strategic advice, implementation and on-going support of IT systems and processes, from single to multi-server…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Whitespiderwhitespider.com HQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 38 contacts → |
“WhiteSpider is a UK-based IT services company with a global reach, specialising in enterprise infrastructure transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Bespoke IT Solutions UKbespokeitsolutions.com HQ: Fleet, United KingdomReported employees: 11-50 | Fleet, United Kingdom | 11-50 | Exact match | 34 contacts → |
“When IT feels hard work, frustrating, or unreliable, it slows everything down.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 605 company matches
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Legacy system modernization: dataset insights
September 20, 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
603 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 605 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 20, 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 legacy system modernization?
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 legacy system modernization did RevenueBase find based in the United Kingdom?
The saved snapshot records 605 matching company records, 7,110 tracked contacts and 2,800 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 20, 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 legacy system modernization based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/legacy-system-modernization/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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- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil