Company lists · Data refreshed November 2026

Top 25 Legacy code refactoring companies based in the United States

RevenueBase identified 252 company matches for legacy code refactoring companies associated with the United States as of November 2026 and tracks 4,025 professional contacts across them, including 1,482 with verified work emails. Chicago is the largest hub.

This list covers company matches for legacy code refactoring companies associated with the United States, 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.

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
252Companies
4,025Contacts tracked
1,482Verified emails
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The 25 largest legacy code refactoring companies based in the United States

Ranked by team size
Top 25 of 252 company matches for legacy code refactoring companies based in the United States, 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 matchDenver, CO, United StatesHQ recorded Nov 6, 202651-200223 contacts →

Exact match

“Pulse Software Solutions is a Denver-based custom software development firm with a proud history of building internet-based systems since 1998.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact 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
4Exact matchMadison, WI, United StatesHQ recorded Nov 6, 2026201-500188 contacts →

Exact match

“In a complex, unpredictable world, adaptability is essential.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchSanta Clara, CA, United StatesHQ recorded Nov 6, 202651-200108 contacts →

Exact match

“Founded in 2001, EvolveWare provides seamless application modernization journeys for enterprises, government organizations and global partners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchChagrin Falls, OH, United StatesHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“Krish Services Group: Your Strategic Partner for Modernizing and Scaling Software and Cloud Solutions Founded in 2011, Krish Services Group has transcended its Cleveland roots to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBloomington, MN, United StatesHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“At Integriti Group, we bring together real-world experience and deep technical expertise to deliver advanced software solutions that solve complex enterprise challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEdison, FL, United StatesHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“i-verve modernizes the legacy platforms regulated businesses already run -.NET Framework, Java EE, AngularJS, HL7 v2 and SSIS-era systems, and builds AI into them: one team, one…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSunnyvale, CA, United StatesHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“CloudGeometry helps organizations build and modernize existing systems for the AI era, transforming legacy software into cloud-native, data-driven, and AI-ready platforms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMiami, FL, United StatesHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“Iceberg Solutions is an owner-operated software engineering firm with over 30 years of experience delivering mission-critical systems for large, multinational organizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchPeoria, IL, United StatesHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“At CSE Software, we’ve been at the forefront of innovation for over 30 years, delivering strategic software solutions across every major tech evolution, from legacy systems to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact 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
15Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5072 contacts →

Exact match

“Maintain, modernize, and understand your.NET, PHP, & C++ codebase.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Primero Systems is a custom software development company focused on building and supporting enterprise applications for complex business environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact 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
18Exact 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
19Exact matchPrinceton, NJ, United StatesHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“The CloudFrame Modernization Suite is the most advanced legacy modernization software in the industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchEast Northport, NY, United StatesHQ recorded Nov 6, 202611-5046 contacts →

Exact match

“At Dotlogics, we help businesses get unstuck by transforming complex challenges into measurable results.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact 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
22Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Clear Measure is a full-service software architecture and engineering firm focused on mission-critical applications built on Microsoft.NET and Azure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMonsey, NY, United StatesHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“It’s a common problem businesses face: Inefficient processes Difficulty accessing the figures Error-prone syncing between loosely-coupled systems And there’s *one* perfect…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchChicago, IL, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Empower your startup's vision by partnering with us to craft robust technology infrastructure tailored to your unique needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“At Hekima, we’re redefining how organizations approach IT solutions.”

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

Showing 25 of 252 legacy code refactoring companies based in the United States

See the full list, filter by size, metro and specialty, and access 1,482 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Legacy code refactoring companies based in the United States at a glance

As of Nov 6, 2026
36.8%Verified-email coverage
16.0Average contacts per company
1-10Median size (employees)
4.8%Largest-city concentration · Chicago
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
136
11-50
75
51-200
32
201-500
8
501-1,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 252 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 the United States whose business descriptions match “legacy code 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. 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 1,482 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.

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

How many legacy code refactoring companies are there based in the United States?

RevenueBase identified 252 company matches for legacy code refactoring companies associated with the United States 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 city has the most legacy code refactoring companies?

Chicago leads with 12 company records, followed by New York (9) and Atlanta (8).

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 1,482 professional contacts with verified work emails tracked across these 252 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.