Company lists · Data refreshed September 2026

Top 25 Legacy software modernization companies worldwide

Name: Legacy software modernization companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 5,055 companies tracked

RevenueBase identified 5,055 legacy software modernization companies worldwide as of September 2026 and tracks 109,563 professional contacts across them, including 27,682 with verified work emails. India is the largest market and London the largest hub.

This list covers legacy software modernization companies worldwide, 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. Country and city lists for legacy software modernization companies follow the table.

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

5,055Companies

109,563Contacts tracked

27,682Verified emails

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The 25 largest legacy software modernization companies worldwide

Ranked by team size

Top 25 of 5,055 legacy software modernization companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to legacy software modernization companies: 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	R Systems	Partial evidence	El Dorado Hills, CA, United StatesHQ checked Sep 28, 2026	5,001-10,000	7,360 contacts →
	Partial evidence “RSI is a trusted software engineering and digital transformation services partner to global enterprises navigating technological change.” Source: RevenueBase Database · checked Sep 28, 2026
2	Software AG	Partial evidence	Darmstadt, GermanyHQ checked Sep 28, 2026	n/a	4,127 contacts →
	Partial evidence “Software AG has been helping enterprises run and evolve their core business applications for over 50 years.” Source: RevenueBase Database · checked Sep 28, 2026
3	Andersen LAB	Partial evidence	Warsaw, PolandHQ checked Sep 28, 2026	1,001-5,000	3,628 contacts →
	Partial evidence “Andersen – your global software development partner Andersen is a global software development company with over 18 years of experience supporting businesses worldwide in their…” Source: RevenueBase Database · checked Sep 28, 2026
4	Exadel	Partial evidence	Walnut Creek, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,874 contacts →
	Partial evidence “Exadel is a leading global software consulting and development company that looks beyond the code to maximize the technology-driven business impact our partners want to make.” Source: RevenueBase Database · checked Sep 28, 2026
5	Itransition Group	Partial evidence	Decatur, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,664 contacts →
	Partial evidence “Founded in 1998, Itransition is a global software engineering and IT consulting company with engineers supporting clients across 40 countries.” Source: RevenueBase Database · checked Sep 28, 2026
6	Improving	Indirect evidence	Plano, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,578 contacts →
	Indirect evidence “Improving is a leading IT professional services firm committed to helping companies achieve lasting success through modern technology.” Source: RevenueBase Database · checked Sep 28, 2026
7	Royal Cyber INC	Indirect evidence	Naperville, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,325 contacts →
	Indirect evidence “Royal Cyber is a trusted global IT consulting & digital transformation partner, empowering enterprises for over two decades to evolve with agility, security, and innovation.” Source: RevenueBase Database · checked Sep 28, 2026
8	HIQ	Partial evidence	Stockholm, SwedenHQ checked Sep 28, 2026	1,001-5,000	1,228 contacts →
	Partial evidence “HiQ is a tech consulting company focused on custom software development, positioned at the intersection of digital transformation and specialized engineering.” Source: RevenueBase Database · checked Sep 28, 2026
9	BBD	Partial evidence	Rosebank, South AfricaHQ checked Sep 28, 2026	1,001-5,000	1,225 contacts →
	Partial evidence “Welcome to BBD – where experience, innovation and software engineering excellence come together.” Source: RevenueBase Database · checked Sep 28, 2026
10	Kumaran Systems	Partial evidence	Chennai, IndiaHQ checked Sep 28, 2026	1,001-5,000	1,219 contacts →
	Partial evidence “Kumaran Systems: Engineering Future-Ready Transformations Since 1992, Kumaran Systems has been helping enterprises bridge the past and the future, reimagining legacy systems and…” Source: RevenueBase Database · checked Sep 28, 2026
11	SNP Group	Indirect evidence	Heidelberg, FranceHQ checked Sep 28, 2026	1,001-5,000	1,172 contacts →
	Indirect evidence “SNP is the global technology platform leader and trusted partner for companies seeking unparalleled data-enabled transformation capabilities and business agility.” Source: RevenueBase Database · checked Sep 28, 2026
12	IBA Group	Partial evidence	Prague, Czech RepublicHQ checked Sep 28, 2026	1,001-5,000	979 contacts →
	Partial evidence “IBA Group is one of the largest IT service providers in Eastern Europe, performing software development, migration, maintenance, support, and IT consulting services with IT and…” Source: RevenueBase Database · checked Sep 28, 2026
13	PIT Solutions	Indirect evidence	Rapperswil, SwitzerlandHQ checked Sep 28, 2026	501-1,000	858 contacts →
	Indirect evidence “PIT Solutions is a technology-driven digital services provider with a strong people-first culture and a proven track record of delivering meaningful, high-impact solutions.” Source: RevenueBase Database · checked Sep 28, 2026
14	Tanisha Systems, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Tanisha Systems, founded in 2002 in Massachusetts-USA, is a leading provider of Custom Application Development and end-to-end IT Services to clients globally.” Source: RevenueBase Database · checked Sep 28, 2026
15	Radixweb	Partial evidence	Ahmedabad, IndiaHQ checked Sep 28, 2026	501-1,000	754 contacts →
	Partial evidence “A global software engineering company with 26+ years of experience helping enterprises build, modernize, and scale complex digital systems.” Source: RevenueBase Database · checked Sep 28, 2026
16	Hidden Brains Infotech	Partial evidence	Ahmedabad, IndiaHQ checked Sep 28, 2026	501-1,000	731 contacts →
	Partial evidence “Hidden Brains InfoTech is CMMI Level 3 Enterprise Software Development & IT Consulting Company with a focus on digital transformation.” Source: RevenueBase Database · checked Sep 28, 2026
17	Mirante Tecnologia	Indirect evidence	Brasilia, BrazilHQ checked Sep 28, 2026	1,001-5,000	724 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
18	Suneratech	Indirect evidence	Troy, MI, United StatesHQ checked Sep 28, 2026	1,001-5,000	692 contacts →
	Indirect evidence “SuneraTech is now at the frontline of Digital Transformation and enables innovation to promote futuristic organizations.” Source: RevenueBase Database · checked Sep 28, 2026
19	Paradigma Digital	Indirect evidence	Pozuelo De Alarcón, SpainHQ checked Sep 28, 2026	501-1,000	692 contacts →
	Indirect evidence “At Paradigma, we have a habit: we commit.” Source: RevenueBase Database · checked Sep 28, 2026
20	Msys Technologies	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	201-500	688 contacts →
	Indirect evidence “MSys Technologies (SDC Awards Winner) is a reliable partner for product engineering services and digital transformation projects for its Enterprise and Silicon Valley clientele.” Source: RevenueBase Database · checked Sep 28, 2026
21	Programmers Force	Indirect evidence	Lahore, PakistanHQ checked Sep 28, 2026	1,001-5,000	671 contacts →
	Indirect evidence “Programmers Force has been established with an aim to facilitate your business needs with innovative and intelligent solutions.” Source: RevenueBase Database · checked Sep 28, 2026
22	Ahana Systems And Solutions Pvt. LTD	Indirect evidence	Bengaluru, IndiaHQ checked Sep 28, 2026	501-1,000	655 contacts →
	Indirect evidence “Fifteen years ago, Ahana began with a simple belief: technology should enable growth, not create complexity.” Source: RevenueBase Database · checked Sep 28, 2026
23	Britenet	Partial evidence	Warsaw, PolandHQ checked Sep 28, 2026	1,001-5,000	639 contacts →
	Partial evidence “With 18+ years of elite software development expertise, we've established ourselves as a leading European IT consultancy specializing in analytics-powered digital transformation.” Source: RevenueBase Database · checked Sep 28, 2026
24	SAM Solutions	Partial evidence	Gilching, GermanyHQ checked Sep 28, 2026	501-1,000	563 contacts →
	Partial evidence “Welcome to SaM Solutions – a software development company that drives digital transformation with the help of its international team of seasoned engineers and best-in-class…” Source: RevenueBase Database · checked Sep 28, 2026
25	Gemini Consulting & Services	Indirect evidence	Saint Louis, MO, United StatesHQ checked Sep 28, 2026	501-1,000	549 contacts →
	Indirect evidence “Gemini Consulting & Services (GCS) is a leading provider of technology solutions.” 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: legacy software modernization companies. 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 legacy software modernization companies.
Partial evidence: Its own public description names part of legacy software modernization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legacy software modernization companies. 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 5,055 legacy software modernization companies worldwide

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Legacy software modernization companies worldwide at a glance

As of Sep 28, 2026

25.3%Verified-email coverage

21.7Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

2,320

11-50

1,854

51-200

643

201-500

131

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 legacy software modernization companies, 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.
Coverage: Every country. Country and city lists for legacy software modernization companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “legacy software modernization companies”. 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 legacy software modernization companies), 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 legacy software modernization companies, and records with no verified work email.
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, 27,682 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.

Legacy software modernization companies by location

36 lists · largest first

Every Legacy software modernization companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 legacy software modernization companies, 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 legacy software modernization companies are there worldwide?

RevenueBase identified 5,055 legacy software modernization companies worldwide 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?

R Systems, headquartered in El Dorado Hills, tops this list with the largest team on record.

Which country has the most legacy software modernization companies?

India leads with 935 companies, followed by the United States (922) and the United Kingdom (239). Every legacy software modernization companies list by country and city is linked on this page.

Which city has the most legacy software modernization companies?

London leads with 88 headquartered companies, followed by Pune (86) and Lahore (76).

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 27,682 verified decision-maker contacts tracked across these 5,055 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.