Company lists · Data refreshed November 2026

Top 25 Monolithic application refactoring companies worldwide

RevenueBase identified 344 company matches for monolithic application refactoring companies worldwide as of November 2026 and tracks 3,239 professional contacts across them, including 852 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for monolithic application refactoring companies worldwide, 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 November 6, 2026. Country and city lists for monolithic application refactoring companies follow the table.

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 Nov 6, 2026 How this list was built
344Companies
3,239Contacts tracked
852Verified emails
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The 25 largest monolithic application refactoring companies worldwide

Ranked by team size
Top 25 of 344 company matches for monolithic application refactoring companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMiami, FL, United StatesHQ recorded Nov 6, 2026501-1,000493 contacts →

Exact match

“Zoolatech is a global software engineering partner helping enterprises modernize legacy systems, adopt AI, and build scalable digital platforms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSt. Louis, MO, United StatesHQ recorded Nov 6, 2026201-500208 contacts →

Exact match

“Astadia is the industry leader for mainframe migrations and modernizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchChennai, IndiaHQ recorded Nov 6, 202651-200124 contacts →

Exact match

“Patterns is a highly valued design services & consulting organization headquartered in Chennai, and we are recognized as a leading partner in reengineering software design to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCincinnati, OH, United StatesHQ recorded Nov 6, 202651-200108 contacts →

Exact match

“Callibrity is the software consultancy helping clients do more with technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPlano, United StatesHQ recorded Nov 6, 2026201-500100 contacts →

Exact match

“Techery is a top software consultancy helping businesses achieve real technological modernization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBellevue, WA, United StatesHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“Softacom is a full-cycle business app migration and modernization provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLenexa, NE, United StatesHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“Keyhole Software is a software development consulting firm specializing in enterprise solutions tailored to clients' needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchRavensburg, GermanyHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Wir sind ein eingespieltes Team aus über 65 Transformationsexperten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Modern Systems empowers efficiency, agility, and competitive advantage through core application modernization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchKirkland, WA, United StatesHQ recorded Nov 6, 202611-5055 contacts →

Exact match

“As a leading provider of software modernization services, TSRI enables technology readiness for the Cloud and other modern architecture environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchKraków, PolandHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“People More is a software development company focused on - Legacy Systems Modernization- Bespoke Software Development- Team Augmentation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchTallinn, EstoniaHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“Greenice is a custom software development team that helps growing products become easier to evolve.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPalatine, IL, United StatesHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“Updraft is a Chicago-based company providing automated software modernization tools to companies and systems integrators (SIs) needing exceptionally high quality code when…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRödermark, GermanyHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“For 30 years we have been helping our clients modernize their software, create new solutions, or master new technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact match69002, FranceHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“Move Solutions is an IT services company specialized in development and transformation of information systems : Data Migration, Modernization and Maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Over the years ADA Software has developed its expertise in the re-engineering and modernization of legacy application software and has delivered projects involving large and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMenlo Park, CA, United StatesHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“vFunction gives AI coding tools the context they need to modernize complex, real-world applications with speed and precision.* Equips code assistants with runtime architectural…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLouvain, BelgiumHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“We step in when others step out.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Thousands of organizations in the private and public sectors worldwide depend on applications written decades ago, but this legacy software hinders their ability to exploit new…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchDresden, GermanyHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Gestartet als Tool-Anbieter für Softwareentwickler greifen wir heute auf 10 Jahre Erfahrung professioneller Produktentwicklung mit mehr als 70 Kunden zurück.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTroy, MI, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“WHAT WE DO: SharpQuest is a custom software development firm that enables companies to confidently leverage global resources to successfully complete business critical technology…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchStockholm, SwedenHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“We're a group of experienced and curious developers and architects who genuinely love solving complex technical challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDublin, CA, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“At Eradani, we understand the wisdom of the ancient saying that you cannot know where you are going if you do not understand where you have been.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5019 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSuginami, JapanHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“We are dedicated to being at the forefront of global software consulting and product development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 344 monolithic application refactoring companies worldwide

See the full list, filter by size, metro and specialty, and access 852 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Monolithic application refactoring companies worldwide at a glance

As of Nov 6, 2026
26.3%Verified-email coverage
9.4Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
210
11-50
103
51-200
23
201-500
4
501-1,000
1
1,001-5,000
1
10001+
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for monolithic application refactoring companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “monolithic application refactoring 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. 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 852 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 November 6, 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.

Monolithic application refactoring companies by location

2 lists · largest first

Every Monolithic application refactoring companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “monolithic application refactoring companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many monolithic application refactoring companies are there worldwide?

RevenueBase identified 344 company matches for monolithic application refactoring companies worldwide as of November 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?

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

Which country has the most monolithic application refactoring companies?

The United States leads with 73 companies, followed by Germany (27). Every monolithic application refactoring companies list by country and city is linked on this page.

Which city has the most monolithic application refactoring companies?

London leads with 8 company records, followed by Paris (7) and Sao Paulo (5).

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 852 professional contacts with verified work emails tracked across these 344 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 November 6, 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 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.