Company lists · Data refreshed November 2026

Top 25 Api modernization companies based in the United States

RevenueBase identified 147 company matches for api modernization companies associated with the United States as of November 2026 and tracks 4,183 professional contacts across them, including 1,335 with verified work emails. Dallas is the largest hub.

This list covers company matches for api modernization 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
147Companies
4,183Contacts tracked
1,335Verified emails
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The 25 largest api modernization companies based in the United States

Ranked by team size
Top 25 of 147 company matches for api modernization 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 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
2Exact 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
3Exact 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
4Exact matchRedmond, WA, United StatesHQ recorded Nov 6, 2026201-50085 contacts →

Exact match

“DB Best is internationally known for comprehensive data-management services, database development and migration, as well as creation of highly successful web and mobile systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCarmel, United StatesHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“At CleanSlate Technology Group, we help businesses modernize, migrate, and move forward with confidence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact matchNew York, United StatesHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“Linksoft builds AI-driven systems and helps companies adapt their technology infrastructure for the way modern businesses now operate.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWinter Park, FL, United StatesHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“Adaptigent™ empowers the adaptive, intelligent enterprise, unlocking the potential of legacy mission-critical systems to enable digital transformation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDayton, MS, United StatesHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“We've been leading IBM i Futurization since Profound Logic is the only IBM i technology partner that takes you beyond modernization and into AI-enhanced futurization, empowering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-50066 contacts →

Exact match

“Established in 2008, OSSCube, a division of Happiest Minds, is the digital transformation and modernization partner for global enterprise to fast growing start-ups, helping them…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPrinceton, NJ, United StatesHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“Legacy to Cloud-At Your Pace, Without the Risk.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact 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
16Exact matchNew Orleans, United StatesHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“Elastik Teams helps organizations modernize their technology without disruption.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact 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
18Exact matchNaperville, IL, United StatesHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Turning AI Into Competitive Advantage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMckinney, TX, United StatesHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“We are a full-spectrum IT services company bringing together technology expertise, experienced professionals, and flexible delivery models to address evolving business and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-50029 contacts →

Exact match

“EPC Group is the 29-year, Microsoft-only, governance-first consultancy, founded in 1997 and holding all six Microsoft Solutions Partner designations, with a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact 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
22Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“At Turgon, we're rewriting the data modernization playbook with AI agents and human experts working together.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“iAppSys: Experts in Enterprise Software, Cloud, and AI Innovation iAppSys is a trusted enterprise solutions provider with over 20 years of experience helping organizations…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBoulder, CO, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Mapleton Hill helps complex organizations modernize digital platforms and ship products faster with AI native workflows.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact 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

Showing 25 of 147 api modernization companies based in the United States

See the full list, filter by size, metro and specialty, and access 1,335 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api modernization companies based in the United States at a glance

As of Nov 6, 2026
31.9%Verified-email coverage
28.5Average contacts per company
11-50Median size (employees)
4.8%Largest-city concentration · Dallas
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
71
11-50
39
51-200
28
201-500
8
1,001-5,000
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 147 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 “api 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 1,335 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 “api modernization companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many api modernization companies are there based in the United States?

RevenueBase identified 147 company matches for api modernization 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?

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

Which city has the most api modernization companies?

Dallas leads with 7 company records, followed by Houston (7) and New York (7).

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 1,335 professional contacts with verified work emails tracked across these 147 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.