Company lists · Data refreshed September 2026
Top 25 Legacy system modernization firms based in the United Kingdom
RevenueBase identified 1,288 company matches for legacy system modernization firms associated with the United Kingdom as of September 2026 and tracks 33,170 professional contacts across them, including 13,833 with verified work emails. London is the largest hub.
This list covers company matches for legacy system modernization firms 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 firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,653 contacts → | ||||
Exact match “For over two decades, we have been harnessing technology to drive meaningful change.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 3,040 contacts → | ||||
Exact match “OpenText has completed the purchase of Micro Focus.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 545 contacts → | ||||
Exact match “At Acuvate, we empower enterprises to accelerate their Next gen transformation journeys with an AI-First approach.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 423 contacts → | ||||
Exact match “We’ve been on a mission to bring together people and technology since the day we were founded over 25 years ago.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 400 contacts → | ||||
Exact match “Kin + Carta was acquired by Valtech in 2024.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 363 contacts → | ||||
Exact match “We are a global niche consultancy specialising in services that span all facets of Digital transformation, DevOps, and System Integration.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 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 | |||||
| 9 | 314 contacts → | ||||
Exact match “Revolutionize your applications with Al and data, modernizing cloud solutions to enhance customer experience.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 266 contacts → | ||||
Exact match “Devtech provides outcome-driven digital innovation services and helps companies better respond to change.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 261 contacts → | ||||
Exact match “As of April 2023, Cloudreach is now part of Eviden, an atos business.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 254 contacts → | ||||
Exact match “We are experts at delivering innovative software, tailored solutions, and quality services across some of the world's most trusted technology ecosystems, including Atlassian, AWS…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 245 contacts → | ||||
Exact match “Percipere is a niche global consultancy, partnering companies in their evolution towards greater operational efficiency and profitability.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 242 contacts → | ||||
Exact match “At Parser we help organisations deliver impact through technology.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 228 contacts → | ||||
Exact match “TMotions is inspired by forward-thinking businesses, who are now looking past recovery and shifting into the growth mode.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 211 contacts → | ||||
Exact match “Technology services for the future.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 210 contacts → | ||||
Exact match “WINNERS!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 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 20, 2026 · View company records in RevenueBase | |||||
| 19 | 178 contacts → | ||||
Exact match “The future has never moved this fast.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 176 contacts → | ||||
Exact match “For over 13 years, Codurance has helped businesses and their boards solve complex software challenges, often the ones that have resisted previous attempts and now carry real…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 167 contacts → | ||||
Exact match “Trusted IT Solutions for Your Digital Transformation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 158 contacts → | ||||
Exact match “Contino joined the Cognizant family in 2019.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 149 contacts → | ||||
Exact match “The Dogma Group is a progressive digital transformation company committed to delivering the digital imperative and becoming the most trusted advisor to its clientele.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 145 contacts → | ||||
Exact match “Founded in 2007, Daemon is a technology consultancy with a mission to make the world a better place by creating movements that power digital transformation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 138 contacts → | ||||
Exact match “For over 22 years, Intagleo has been a trusted partner for businesses worldwide and US Primes, empowering them to achieve their digital transformation goals through innovative…” 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 firms”. 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 1,288 legacy system modernization firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 13,833 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Legacy system modernization firms 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 1,288 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 firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 13,833 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.
Legacy system modernization firms by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “legacy system modernization firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many legacy system modernization firms are there based in the United Kingdom?
RevenueBase identified 1,288 company matches for legacy system modernization firms 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?
Endava 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 firms?
London leads with 554 company records, followed by Manchester (44) and Leeds (22).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 13,833 professional contacts with verified work emails tracked across these 1,288 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 1,288 legacy system modernization firms based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Legacy system modernization firms by geography
- Legacy system modernization firms based in Buenos Aires, Argentina
- Legacy system modernization firms based in Brisbane, Australia
- Legacy system modernization firms based in Melbourne, Australia
- Legacy system modernization firms based in Perth, Australia
- Legacy system modernization firms based in Sydney, Australia
- Legacy system modernization firms based in Dhaka, Bangladesh
- Legacy system modernization firms based in Barueri, Brazil
- Legacy system modernization firms based in Belo Horizonte, Brazil
- Legacy system modernization firms based in Campinas, Brazil
- Legacy system modernization firms based in Curitiba, Brazil
- Legacy system modernization firms based in Rio De Janeiro, Brazil
- Legacy system modernization firms based in Sao Paulo, Brazil
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
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- Lists A-Z
- New lists
- Legacy system modernization firms based in Buenos Aires, Argentina
- Legacy system modernization firms based in Brisbane, Australia
- Legacy system modernization firms based in Melbourne, Australia
- Legacy system modernization firms based in Perth, Australia
- Legacy system modernization firms based in Sydney, Australia
- Legacy system modernization firms based in Dhaka, Bangladesh
Company intelligence · public preview
Top 25 legacy system modernization firms 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 1,288 matching company records for legacy system modernization firms based in the United Kingdom, with 33,170 tracked contacts and 13,833 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 firms 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 |  Endavaendava.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 9,653 contacts → |
“For over two decades, we have been harnessing technology to drive meaningful change.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Micro Focusmicrofocus.comHQ: Newbury, United KingdomReported employees: 10001+ | Newbury, United Kingdom | 10001+ | Exact match | 3,040 contacts → |
“OpenText has completed the purchase of Micro Focus.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  Acuvateacuvate.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 545 contacts → |
“At Acuvate, we empower enterprises to accelerate their Next gen transformation journeys with an AI-First approach.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  ACORAacora.comHQ: Burgess Hill, United KingdomReported employees: 501-1,000 | Burgess Hill, United Kingdom | 501-1,000 | Exact match | 423 contacts → |
“We’ve been on a mission to bring together people and technology since the day we were founded over 25 years ago.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  KIN Cartavaltech.comHQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 400 contacts → |
“Kin + Carta was acquired by Valtech in 2024.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Sandhata Technologiessandhata.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 363 contacts → |
“We are a global niche consultancy specialising in services that span all facets of Digital transformation, DevOps, and System Integration.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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. | |||||
| 9 |  Mitra AImitrai.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 314 contacts → |
“Revolutionize your applications with Al and data, modernizing cloud solutions to enhance customer experience.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Devtechdevtechgroup.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 266 contacts → |
“Devtech provides outcome-driven digital innovation services and helps companies better respond to change.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Cloudreach, An Eviden Businesscloudreach.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 261 contacts → |
“As of April 2023, Cloudreach is now part of Eviden, an atos business.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  The Adaptavist Grouptheadaptavistgroup.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 254 contacts → |
“We are experts at delivering innovative software, tailored solutions, and quality services across some of the world's most trusted technology ecosystems, including Atlassian, AWS…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Perciperepercipere.coHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 245 contacts → |
“Percipere is a niche global consultancy, partnering companies in their evolution towards greater operational efficiency and profitability.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Parserparserdigital.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 242 contacts → |
“At Parser we help organisations deliver impact through technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Tmotions Global Limitedtmotions.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 228 contacts → |
“TMotions is inspired by forward-thinking businesses, who are now looking past recovery and shifting into the growth mode.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  ROCKrock.co.ukHQ: Pencoed, United KingdomReported employees: 51-200 | Pencoed, United Kingdom | 51-200 | Exact match | 211 contacts → |
“Technology services for the future.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Codestone Groupcodestone.comHQ: Poole, United KingdomReported employees: 201-500 | Poole, United Kingdom | 201-500 | Exact match | 210 contacts → |
“WINNERS!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Azurianazurian.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 178 contacts → |
“The future has never moved this fast.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Codurancecodurance.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 176 contacts → |
“For over 13 years, Codurance has helped businesses and their boards solve complex software challenges, often the ones that have resisted previous attempts and now carry real…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  TIEVAtieva.co.ukHQ: Leeds, United KingdomReported employees: 201-500 | Leeds, United Kingdom | 201-500 | Exact match | 167 contacts → |
“Trusted IT Solutions for Your Digital Transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Contino, A Cognizant Companycontino.ioHQ: Liverpool Street, United KingdomReported employees: 201-500 | Liverpool Street, United Kingdom | 201-500 | Exact match | 158 contacts → |
“Contino joined the Cognizant family in 2019.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Dogma Groupdogmagroup.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 149 contacts → |
“The Dogma Group is a progressive digital transformation company committed to delivering the digital imperative and becoming the most trusted advisor to its clientele.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Daemondae.mnHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 145 contacts → |
“Founded in 2007, Daemon is a technology consultancy with a mission to make the world a better place by creating movements that power digital transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Intagleo Systemsintagleo.comHQ: Slough, United KingdomReported employees: 51-200 | Slough, United Kingdom | 51-200 | Exact match | 138 contacts → |
“For over 22 years, Intagleo has been a trusted partner for businesses worldwide and US Primes, empowering them to achieve their digital transformation goals through innovative…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,288 company matches
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Legacy system modernization firms: 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
1,286 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 1,288 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 ↗
Legacy system modernization firms by metro
Questions about this company list
What does Exact match mean for legacy system modernization firms?
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 firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 1,288 matching company records, 33,170 tracked contacts and 13,833 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 firms by geography
- Legacy system modernization firms based in Buenos Aires, Argentina
- Legacy system modernization firms based in Brisbane, Australia
- Legacy system modernization firms based in Melbourne, Australia
- Legacy system modernization firms based in Perth, Australia
- Legacy system modernization firms based in Sydney, Australia
- Legacy system modernization firms based in Dhaka, Bangladesh
- Legacy system modernization firms based in Barueri, Brazil
- Legacy system modernization firms based in Belo Horizonte, Brazil
- Legacy system modernization firms based in Campinas, Brazil
- Legacy system modernization firms based in Curitiba, Brazil
- Legacy system modernization firms based in Rio De Janeiro, Brazil
- Legacy system modernization firms based in Sao Paulo, Brazil
Cite this list
RevenueBase Data Team. Top 25 legacy system modernization firms based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/legacy-system-modernization-firms/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 firms based in Buenos Aires, Argentina
- Legacy system modernization firms based in Brisbane, Australia
- Legacy system modernization firms based in Melbourne, Australia
- Legacy system modernization firms based in Perth, Australia
- Legacy system modernization firms based in Sydney, Australia
- Legacy system modernization firms based in Dhaka, Bangladesh
Company intelligence · public preview
Top 25 legacy system modernization firms based in the United Kingdom
RevenueBase records 1,288 matching company records for legacy system modernization firms based in the United Kingdom, with 33,170 tracked contacts and 13,833 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 firms 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 | Endavaendava.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 9,653 contacts → |
“For over two decades, we have been harnessing technology to drive meaningful change.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Micro Focusmicrofocus.com HQ: Newbury, United KingdomReported employees: 10001+ | Newbury, United Kingdom | 10001+ | Exact match | 3,040 contacts → |
“OpenText has completed the purchase of Micro Focus.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | Acuvateacuvate.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 545 contacts → |
“At Acuvate, we empower enterprises to accelerate their Next gen transformation journeys with an AI-First approach.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | ACORAacora.com HQ: Burgess Hill, United KingdomReported employees: 501-1,000 | Burgess Hill, United Kingdom | 501-1,000 | Exact match | 423 contacts → |
“We’ve been on a mission to bring together people and technology since the day we were founded over 25 years ago.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | KIN Cartavaltech.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 400 contacts → |
“Kin + Carta was acquired by Valtech in 2024.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Sandhata Technologiessandhata.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 363 contacts → |
“We are a global niche consultancy specialising in services that span all facets of Digital transformation, DevOps, and System Integration.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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. | |||||
| 9 | Mitra AImitrai.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 314 contacts → |
“Revolutionize your applications with Al and data, modernizing cloud solutions to enhance customer experience.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Devtechdevtechgroup.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 266 contacts → |
“Devtech provides outcome-driven digital innovation services and helps companies better respond to change.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Cloudreach, An Eviden Businesscloudreach.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 261 contacts → |
“As of April 2023, Cloudreach is now part of Eviden, an atos business.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | The Adaptavist Grouptheadaptavistgroup.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 254 contacts → |
“We are experts at delivering innovative software, tailored solutions, and quality services across some of the world's most trusted technology ecosystems, including Atlassian, AWS…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Perciperepercipere.co HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 245 contacts → |
“Percipere is a niche global consultancy, partnering companies in their evolution towards greater operational efficiency and profitability.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Parserparserdigital.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 242 contacts → |
“At Parser we help organisations deliver impact through technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Tmotions Global Limitedtmotions.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 228 contacts → |
“TMotions is inspired by forward-thinking businesses, who are now looking past recovery and shifting into the growth mode.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | ROCKrock.co.uk HQ: Pencoed, United KingdomReported employees: 51-200 | Pencoed, United Kingdom | 51-200 | Exact match | 211 contacts → |
“Technology services for the future.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Codestone Groupcodestone.com HQ: Poole, United KingdomReported employees: 201-500 | Poole, United Kingdom | 201-500 | Exact match | 210 contacts → |
“WINNERS!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Azurianazurian.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 178 contacts → |
“The future has never moved this fast.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Codurancecodurance.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 176 contacts → |
“For over 13 years, Codurance has helped businesses and their boards solve complex software challenges, often the ones that have resisted previous attempts and now carry real…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | TIEVAtieva.co.uk HQ: Leeds, United KingdomReported employees: 201-500 | Leeds, United Kingdom | 201-500 | Exact match | 167 contacts → |
“Trusted IT Solutions for Your Digital Transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Contino, A Cognizant Companycontino.io HQ: Liverpool Street, United KingdomReported employees: 201-500 | Liverpool Street, United Kingdom | 201-500 | Exact match | 158 contacts → |
“Contino joined the Cognizant family in 2019.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Dogma Groupdogmagroup.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 149 contacts → |
“The Dogma Group is a progressive digital transformation company committed to delivering the digital imperative and becoming the most trusted advisor to its clientele.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Daemondae.mn HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 145 contacts → |
“Founded in 2007, Daemon is a technology consultancy with a mission to make the world a better place by creating movements that power digital transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Intagleo Systemsintagleo.com HQ: Slough, United KingdomReported employees: 51-200 | Slough, United Kingdom | 51-200 | Exact match | 138 contacts → |
“For over 22 years, Intagleo has been a trusted partner for businesses worldwide and US Primes, empowering them to achieve their digital transformation goals through innovative…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Legacy system modernization firms: 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
1,286 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 1,288 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 ↗
Legacy system modernization firms by metro
Questions about this company list
What does Exact match mean for legacy system modernization firms?
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 firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 1,288 matching company records, 33,170 tracked contacts and 13,833 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 firms by geography
- Legacy system modernization firms based in Buenos Aires, Argentina
- Legacy system modernization firms based in Brisbane, Australia
- Legacy system modernization firms based in Melbourne, Australia
- Legacy system modernization firms based in Perth, Australia
- Legacy system modernization firms based in Sydney, Australia
- Legacy system modernization firms based in Dhaka, Bangladesh
- Legacy system modernization firms based in Barueri, Brazil
- Legacy system modernization firms based in Belo Horizonte, Brazil
- Legacy system modernization firms based in Campinas, Brazil
- Legacy system modernization firms based in Curitiba, Brazil
- Legacy system modernization firms based in Rio De Janeiro, Brazil
- Legacy system modernization firms based in Sao Paulo, Brazil
Cite this list
RevenueBase Data Team. Top 25 legacy system modernization firms based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/legacy-system-modernization-firms/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 firms based in Buenos Aires, Argentina
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- Legacy system modernization firms based in Melbourne, Australia
- Legacy system modernization firms based in Perth, Australia
- Legacy system modernization firms based in Sydney, Australia
- Legacy system modernization firms based in Dhaka, Bangladesh