Company lists · Data refreshed September 2026

Top 25 Enterprise application modernization firms based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 12, 2026 142 companies tracked

RevenueBase identified 142 enterprise application modernization firms headquartered in London, United Kingdom as of September 2026 and tracks 2,304 professional contacts across them, including 814 with verified work emails and 106 with mobile numbers. London is the largest hub.

This list covers enterprise application modernization firms headquartered in London, 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 12, 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 12, 2026 86% judged on-target in blind review

142Companies

2,304Contacts tracked

814Verified emails

106Mobile numbers

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The 25 largest enterprise application modernization firms based in London, United Kingdom

Ranked by team size

Top 25 of 142 enterprise application modernization firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise application 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	Acuvate	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	201-500	545 contacts →
	Partial evidence “At Acuvate, we empower enterprises to accelerate their Next gen transformation journeys with an AI-First approach.” Source: RevenueBase Database · checked Sep 12, 2026
2	Parser	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	201-500	242 contacts →
	Indirect evidence “At Parser we help organisations deliver impact through technology.” Source: RevenueBase Database · checked Sep 12, 2026
3	Codurance	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	201-500	176 contacts →
	Indirect 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 12, 2026
4	Infosight Consulting	Partial evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
5	Craftsmen	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	85 contacts →
	Indirect evidence “Craftsmen helps companies modernize products, engineering workflows, and digital operations for the AI era.” Source: RevenueBase Database · checked Sep 12, 2026
6	Agilitz Technologies	Indirect evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
7	KLOIA	Strong evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
8	Cloudplexo	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	54 contacts →
	Indirect evidence “CloudPlexo is a global technology consulting firm helping organizations transform, innovate, and build resilience through Cloud, AI, and Cybersecurity.” Source: RevenueBase Database · checked Sep 12, 2026
9	Diegesis Limited	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	52 contacts →
	Indirect evidence “Diegesis is a business technology and IT systems integration company that specialises in Decision Support Solutions.” Source: RevenueBase Database · checked Sep 12, 2026
10	Turintech AI	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	52 contacts →
	Indirect evidence “At TurinTech, we deliver AI-driven solutions that transform the code and data you have into the optimized, production-ready solutions you need.” Source: RevenueBase Database · checked Sep 12, 2026
11	Cloudhouse	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	50 contacts →
	Indirect evidence “Cloudhouse Change is the common root cause of failure.” Source: RevenueBase Database · checked Sep 12, 2026
12	Camwood	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	31 contacts →
	Partial evidence “Camwood: Igniting Enterprise Innovation for 25 Years.” Source: RevenueBase Database · checked Sep 12, 2026
13	Steer73	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	30 contacts →
	Partial evidence “A full-service digital transformation agency that handles a range of complex, business-critical projects for both enterprise and SME clients.” Source: RevenueBase Database · checked Sep 12, 2026
14	The RAD Consulting Group	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	27 contacts →
	Indirect evidence “RAD is a technology consultancy specialising in digital platform modernisation for property, retail and financial services organisations.” Source: RevenueBase Database · checked Sep 12, 2026
15	Speecto	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	26 contacts →
	Indirect evidence “Speecto is an AI product and software engineering company helping Digital Health, Fitness and Wellness startups design, build and scale intelligent digital products.” Source: RevenueBase Database · checked Sep 12, 2026
16	Vthrive Solutions	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	25 contacts →
	Indirect evidence “Welcome to VThrive Solutions, where your business takes center stage as we cater to your technological needs.” Source: RevenueBase Database · checked Sep 12, 2026
17	Moat Builders	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	23 contacts →
	Indirect evidence “We build software, connect systems, automate work and advise on AI, whatever your business needs to run better.” Source: RevenueBase Database · checked Sep 12, 2026
18	Hucclecote	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	19 contacts →
	Indirect evidence “We are team of innovative technical consultants and seasoned developers with in-depth technical knowledge of some of the most complex solutions.” Source: RevenueBase Database · checked Sep 12, 2026
19	D Code IT	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	13 contacts →
	Partial evidence “We’re a digital design and development studio that have been transforming the way major financial institutions and enterprises work, think and perform for 10+ years.” Source: RevenueBase Database · checked Sep 12, 2026
20	Tammwe Buildateam AI	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	12 contacts →
	Indirect evidence “Tammwe helps organisations unlock faster, smarter, and more cost-effective digital transformation.” Source: RevenueBase Database · checked Sep 12, 2026
21	Revatics	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	9 contacts →
	Indirect evidence “We turn ideas into reliable products.” Source: RevenueBase Database · checked Sep 12, 2026
22	Codescrum	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	7 contacts →
	Indirect evidence “Codescrum makes the unthinkable possible by understanding business problems, envisioning how software solves them and delivering the right result.” Source: RevenueBase Database · checked Sep 12, 2026
23	Application Readiness	Strong evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	6 contacts →
	Strong evidence “Readiness is the world’s first entirely web-based, dynamic, on-demand system for automatic application assessment, remediation and conversion of an enterprise’s entire portfolio…” Source: RevenueBase Database · checked Sep 12, 2026
24	Smartsaas	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	6 contacts →
	Indirect evidence “SmartSaaS is a company focused on modernising the data workflows of SMEs, we work with our clients to create a data structure which is the basis of a centralised system for all of…” Source: RevenueBase Database · checked Sep 12, 2026
25	Dforce	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	6 contacts →
	Indirect evidence “Our Focus, Setting you up for success.” Source: RevenueBase Database · checked Sep 12, 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 application 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 application modernization firms.
Partial evidence: Its own public description names part of enterprise application 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 application 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 25 of 142 enterprise application modernization firms based in London, United Kingdom

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Enterprise application modernization firms based in London, United Kingdom at a glance

As of Sep 12, 2026

35.3%Verified-email coverage

4.6%Mobile-number coverage

16.2Average contacts per company

11-50Median size (employees)

108.5%Largest-city concentration · London

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

6840–30

12431–60

161–90

190–180

4180+

Company record updated

Median 63.0d

00–30

1,02331–60

93661–90

22190–180

124180+

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 application 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 London, United Kingdom whose own description of what they do matches “enterprise application 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 application 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 application modernization firms, and records with no verified work email. Companies headquartered outside London 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, 814 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 12, 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 application modernization firms by metro in the United Kingdom

Enterprise application modernization firms in London154

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 application 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 application modernization firms are there based in London, United Kingdom?

RevenueBase identified 142 enterprise application modernization firms headquartered in London, 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?

Acuvate, headquartered in London, tops this list with the largest team on record.

Which city has the most enterprise application modernization firms?

London leads with 154 headquartered companies, followed by Manchester (14) and Birmingham (10).

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 814 verified decision-maker contacts tracked across these 142 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 12, 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.