Company lists · Data refreshed September 2026

Top 24 Enterprise software modernization firms based in the United Kingdom

Name: Enterprise software modernization firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 750 companies tracked

RevenueBase identified 750 enterprise software modernization firms headquartered in the United Kingdom as of September 2026 and tracks 11,771 professional contacts across them, including 3,622 with verified work emails. London is the largest hub.

This list covers enterprise software modernization firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

750Companies

11,771Contacts tracked

3,622Verified emails

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The 24 largest enterprise software modernization firms based in the United Kingdom

Ranked by team size

Top 24 of 750 enterprise software modernization firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise software modernization firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Micro Focus	Indirect evidence	Newbury, United KingdomHQ checked Sep 28, 2026	10001+	3,040 contacts →
	Indirect evidence “OpenText has completed the purchase of Micro Focus.” Source: RevenueBase Database · checked Sep 28, 2026
2	Node4	Indirect evidence	Derby, United KingdomHQ checked Sep 28, 2026	1,001-5,000	628 contacts →
	Indirect evidence “Node4 helps businesses achieve more with secure, AI‑powered cloud and managed service platforms.” Source: RevenueBase Database · checked Sep 28, 2026
3	Parser	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	242 contacts →
	Indirect evidence “At Parser we help organisations deliver impact through technology.” Source: RevenueBase Database · checked Sep 28, 2026
4	Leighton	Partial evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 28, 2026	51-200	201 contacts →
	Partial evidence “Leighton is a software development business that builds high performing teams and develops successful software applications for its customers.” Source: RevenueBase Database · checked Sep 28, 2026
5	Codurance	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	176 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
6	Opinov8	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	154 contacts →
	Indirect evidence “Winner of the Best AI Company Award by The Netty Awards · Headquartered in London, powered by a worldwide team of engineers across Europe, Egypt, and the Americas.” Source: RevenueBase Database · checked Sep 28, 2026
7	Intagleo Systems	Indirect evidence	Slough, United KingdomHQ checked Sep 28, 2026	51-200	138 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
8	Macro 4	Strong evidence	Crawley, United KingdomHQ checked Sep 28, 2026	201-500	134 contacts →
	Strong evidence “Macro 4, a division of UNICOM Global, provides software solutions for customer communications, information management, application decommissioning, mainframe modernization and…” Source: RevenueBase Database · checked Sep 28, 2026
9	Infosight Consulting	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	121 contacts →
	Partial evidence “At Infosight, we architect the future of enterprises by engineering your digital core and activating the intelligence within.” Source: RevenueBase Database · checked Sep 28, 2026
10	Neosalpha Technologies	Indirect evidence	Maidenhead, United KingdomHQ checked Sep 28, 2026	51-200	97 contacts →
	Indirect evidence “NeosAlpha: Your Trusted Partner in IT Consulting and Digital Transformation Founded in the UK in 2017, NeosAlpha is a niche IT consulting and services company, that delivers…” Source: RevenueBase Database · checked Sep 28, 2026
11	Goodcore Software	Partial evidence	Croydon, United KingdomHQ checked Sep 28, 2026	51-200	90 contacts →
	Partial evidence “When software underpins how your business operates, change carries real risk.” Source: RevenueBase Database · checked Sep 28, 2026
12	Agilitz Technologies	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	80 contacts →
	Indirect evidence “Agilitz Technologies leverages the full power of Microsoft ecosystem to transform the way organizations work and to improve their business performance.” Source: RevenueBase Database · checked Sep 28, 2026
13	Clurgo	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	76 contacts →
	Strong evidence “Clurgo empowers global enterprises and early ventures to deliver software at higher velocity and better quality.” Source: RevenueBase Database · checked Sep 28, 2026
14	Vjsar Consultant Service LTD	Indirect evidence	Wallington, United KingdomHQ checked Sep 28, 2026	51-200	76 contacts →
	Indirect evidence “VJSAR is a trusted IT solutions and services provider, offering specialised expertise across Microsoft Azure, Google Cloud Platform, and Amazon Web Services.” Source: RevenueBase Database · checked Sep 28, 2026
15	KLOIA	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	75 contacts →
	Strong evidence “Kloia is an AWS Premier Tier Services Partner that specializes in DevOps/Cloud, Application Modernization, Software Testing and Generative AI.” Source: RevenueBase Database · checked Sep 28, 2026
16	BIT Wave Solutions Limited	Indirect evidence	Reading, United KingdomHQ checked Sep 28, 2026	11-50	75 contacts →
	Indirect evidence “Headquartered at Reading, Berkshire in United Kingdom, Bit Wave Solutions enables global businesses to build their future by directing clients’ innovation & customization agenda.” Source: RevenueBase Database · checked Sep 28, 2026
17	unipro.io	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	71 contacts →
	Partial evidence “Unipro is a bespoke software studio that creates custom solutions to solve the most complex digital transformation challenges, giving our clients unparalleled control and lasting…” Source: RevenueBase Database · checked Sep 28, 2026
18	Validata Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	68 contacts →
	Partial evidence “Validata Group is an international company that empowers banks and financial services with continuous quality engineering, smart ‘progressive’ data migration and enterprise…” Source: RevenueBase Database · checked Sep 28, 2026
19	Versatile Commerce	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 28, 2026	51-200	64 contacts →
	Partial evidence “Versatile Commerce is an innovative bespoke software development company headquartered in the UK, with offices in the US and India.” Source: RevenueBase Database · checked Sep 28, 2026
20	Codex Software	Partial evidence	Cirencester, United KingdomHQ checked Sep 28, 2026	51-200	63 contacts →
	Partial evidence “Codex makes software simple, strategic, and reliable.” Source: RevenueBase Database · checked Sep 28, 2026
21	Wavex Technology LTD	Indirect evidence	Liverpool Street, United KingdomHQ checked Sep 28, 2026	51-200	60 contacts →
	Indirect evidence “Wavex offers a fresh approach to improving and modernising managed services.” Source: RevenueBase Database · checked Sep 28, 2026
22	Gemba Advantage	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	59 contacts →
	Partial evidence “Gemba Advantage make high-impact software that is secure, scalable and sustainable.” Source: RevenueBase Database · checked Sep 28, 2026
23	Runibex	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	59 contacts →
	Indirect evidence “Runibex is a technology products company.” Source: RevenueBase Database · checked Sep 28, 2026
24	Elite IT Team	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	59 contacts →
	Partial evidence “Most software is built for today’s headcount and today's problems.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: enterprise software modernization firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names enterprise software modernization firms.
Partial evidence: Its own public description names part of enterprise software modernization firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise software modernization firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 24 of 750 enterprise software modernization firms based in the United Kingdom

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Enterprise software modernization firms based in the United Kingdom at a glance

As of Sep 28, 2026

30.8%Verified-email coverage

15.7Average contacts per company

1-10Median size (employees)

37.9%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

422

11-50

231

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 750 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among enterprise software modernization firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “enterprise software modernization firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names enterprise software modernization firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among enterprise software modernization firms, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,622 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Enterprise software modernization firms by metro

Enterprise software modernization firms in London284

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names enterprise software modernization firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many enterprise software modernization firms are there based in the United Kingdom?

RevenueBase identified 750 enterprise software modernization firms headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Micro Focus, headquartered in Newbury, tops this list with the largest team on record.

Which city has the most enterprise software modernization firms?

London leads with 284 headquartered companies, followed by Manchester (26) and Birmingham (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,622 verified decision-maker contacts tracked across these 750 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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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 Smart Search, 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.