Company lists · Data refreshed September 2026

Top 23 Legacy software modernization companies based in London, United Kingdom

Name: Legacy software modernization companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 88 companies tracked

RevenueBase identified 88 company matches for legacy software modernization companies associated with London, United Kingdom as of September 2026 and tracks 1,309 professional contacts across them, including 369 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for legacy software modernization companies associated with London, 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 28, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

88Companies

1,309Contacts tracked

369Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 23 largest legacy software modernization companies based in London, United Kingdom

Ranked by team size

Top 23 of 88 company matches for legacy software modernization companies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Parser	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	242 contacts →
	Exact match “At Parser we help organisations deliver impact through technology.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Dreams Technologies, UK & India	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	221 contacts →
	Exact match “At Dreams Technologies, we’re more than software engineers, we’re digital transformation partners.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Codurance	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	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 28, 2026 · View company records in RevenueBase
4	Infosight Consulting	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	121 contacts →
	Exact match “At Infosight, we architect the future of enterprises by engineering your digital core and activating the intelligence within.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Clurgo	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	76 contacts →
	Exact match “Clurgo empowers global enterprises and early ventures to deliver software at higher velocity and better quality.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Diegesis Limited	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	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 28, 2026 · View company records in RevenueBase
7	Devbox	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	52 contacts →
	Exact match “Devbox Technologies is a UK based company that specializes in providing services related to the development, testing, maintenance, and enhancement of software applications for…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Camwood	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	31 contacts →
	Exact match “Camwood: Igniting Enterprise Innovation for 25 Years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Coremaker	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	24 contacts →
	Exact match “We are a software engineering studio, that helps large companies tackle innovation head-on.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Brilino Solutions Private Limited	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	24 contacts →
	Exact match “BRILINO SOLUTIONS is a high end business application development company providing bespoke business solutions for enterprise customers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Thoughtworks, LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	16 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Digitalworks	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “Digital Works is a digital and software development company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Sorint.Lab UK Limited	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	7 contacts →
	Exact match “We are an IT service company focused on Digital Transformation and System Integration solutions, providing services, consultancy and training.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Dforce	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	6 contacts →
	Exact match “Our Focus, Setting you up for success.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Devroom	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	6 contacts →
	Exact match “At DevRoom we deliver high-quality software solutions tailored to your business.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Roll Studio	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	6 contacts →
	Exact match “We transform legacy software into beautifully-crafted, market-leading solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Softwaremining	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	4 contacts →
	Exact match “Helping Banks, Insurance companies and government organizations to translate and refactor their COBOL Applications Java, C# and the cloud.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Renav Technologies	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	4 contacts →
	Exact match “At Renav, we help businesses move from fragmented systems to fully integrated digital platforms.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Mezunda	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	2 contacts →
	Exact match “Services: Mezunda leverages cutting-edge technology to deliver impactful results.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Numa Productions LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	2 contacts →
	Exact match “Dynamic software consultancy specialising in custom built database-driven software applications.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	packman.io	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	1 contacts →
	Exact match “Got some C code written 20 years ago to run on AIX?” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Elephant And Rope	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	1 contacts →
	Exact match “Welcome to Elephant and Rope In an era where technology defines success, Elephant and Rope stands at the forefront of innovation, transforming challenges into scalable software…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Nixilla LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	1 contacts →
	Exact match “Nixilla Ltd provides software engineering and technical consulting services for SMEs and growing businesses.” Recorded in the RevenueBase company graph · Sep 28, 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 software modernization companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 23 of 88 legacy software modernization companies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 369 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Legacy software modernization companies based in London, United Kingdom at a glance

As of Sep 28, 2026

28.2%Verified-email coverage

14.9Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 88 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 London, United Kingdom whose business descriptions match “legacy software modernization companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 369 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 28, 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 software modernization companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many legacy software modernization companies are there based in London, United Kingdom?

RevenueBase identified 88 company matches for legacy software modernization companies associated with London, 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?

Parser tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most legacy software modernization companies?

London leads the United Kingdom with 88 company records, followed by Manchester (11) and Glasgow (6).

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 369 professional contacts with verified work emails tracked across these 88 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 88 legacy software modernization companies based in London, United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Legacy software modernization companies by geography

Browse the directory

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.