Company lists · Data refreshed September 2026

Top 25 Software modernization services based in the United States

Name: Software modernization services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 1,535 companies tracked

RevenueBase identified 1,535 software modernization services headquartered in the United States as of September 2026 and tracks 198,819 professional contacts across them, including 55,368 with verified work emails. New York is the largest hub.

This list covers software modernization services headquartered in the United States, 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 29, 2026.

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 29, 2026 86% judged on-target in blind review

1,535Companies

198,819Contacts tracked

55,368Verified emails

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The 25 largest software modernization services based in the United States

Ranked by team size

Top 25 of 1,535 software modernization services based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to software modernization services: 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	DXC Technology	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	10001+	82,768 contacts →
	Indirect evidence “DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Source: RevenueBase Database · checked Sep 29, 2026
2	R Systems	Partial evidence	El Dorado Hills, CA, United StatesHQ checked Sep 29, 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 29, 2026
3	Ness Digital Engineering	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	5,336 contacts →
	Partial evidence “Ness Digital Engineering is a global provider of Intelligent Data and Software Engineering services, specializing in data, AI, and cloud-powered solutions that drive innovation…” Source: RevenueBase Database · checked Sep 29, 2026
4	Ensono	Indirect evidence	Downers Grove, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,247 contacts →
	Indirect evidence “Ensono is an expert technology adviser and managed service provider.” Source: RevenueBase Database · checked Sep 29, 2026
5	Rocket Software	Partial evidence	Waltham, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,703 contacts →
	Partial evidence “As a global technology leader, Rocket Software is the partner of choice for organizations transforming their IT from core systems to the cloud.” Source: RevenueBase Database · checked Sep 29, 2026
6	Trianz	Partial evidence	Herndon, VA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,331 contacts →
	Partial evidence “Trianz is a "transformation services as a software" company - helping enterprises accelerate cloud adoption and AI transformation through Concierto, our unified, AI-first platform…” Source: RevenueBase Database · checked Sep 29, 2026
7	Exadel	Partial evidence	Walnut Creek, CA, United StatesHQ checked Sep 29, 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 29, 2026
8	Infovision INC	Partial evidence	Richardson, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,728 contacts →
	Partial evidence “Infovision, founded in 1995, is a leading global IT services company offering enterprise digital transformation and modernization solutions across business verticals.” Source: RevenueBase Database · checked Sep 29, 2026
9	Itransition Group	Partial evidence	Decatur, GA, United StatesHQ checked Sep 29, 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 29, 2026
10	Improving	Indirect evidence	Plano, TX, United StatesHQ checked Sep 29, 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 29, 2026
11	3pillar	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,575 contacts →
	Indirect evidence “At 3Pillar, we believe something truly incredible happens at the intersection of product engineering and cognitive computing.” Source: RevenueBase Database · checked Sep 29, 2026
12	Hughes Systique Corporation HSC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,524 contacts →
	Indirect evidence “Hughes Systique Corporation (HSC) is a global digital engineering and transformation partner enabling enterprises to modernize, innovate, and grow through its AI-First approach.” Source: RevenueBase Database · checked Sep 29, 2026
13	Searce INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,511 contacts →
	Indirect evidence “Searce is an AI-native, engineering-led modern tech consultancy that empowers clients to futurify by delivering real business outcomes.” Source: RevenueBase Database · checked Sep 29, 2026
14	Royal Cyber INC	Indirect evidence	Naperville, IL, United StatesHQ checked Sep 29, 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 29, 2026
15	galaxe.solutions	Indirect evidence	Detroit, CT, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,186 contacts →
	Indirect evidence “GalaxE, now Endava, is a leading global professional services company that specializes in platform-driven solutions and the use of automation to achieve core modernisation and…” Source: RevenueBase Database · checked Sep 29, 2026
16	ONIX	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,102 contacts →
	Indirect evidence “Onix is a pioneer in cloud, data, and AI-driven transformation, delivering enterprise-grade innovation for more than two decades.” Source: RevenueBase Database · checked Sep 29, 2026
17	Emergys	Indirect evidence	Morrisville, NC, United StatesHQ checked Sep 29, 2026	1,001-5,000	981 contacts →
	Indirect evidence “Accelerate Digital Transformation At Emergys, we empower businesses to align their IT strategies with long-term objectives-driving innovation, efficiency, and growth.” Source: RevenueBase Database · checked Sep 29, 2026
18	Tanisha Systems, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 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 29, 2026
19	Xtglobal, INC	Indirect evidence	Plano, TX, United StatesHQ checked Sep 29, 2026	501-1,000	841 contacts →
	Indirect evidence “Founded in 1998, XTGlobal, Inc.” Source: RevenueBase Database · checked Sep 29, 2026
20	Infojini INC	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 29, 2026	501-1,000	828 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
21	SUN Technologies	Indirect evidence	Atlanta, United StatesHQ checked Sep 29, 2026	1,001-5,000	763 contacts →
	Indirect evidence “Established in 1996, Sun Technologies Inc.” Source: RevenueBase Database · checked Sep 29, 2026
22	Fullstack	Partial evidence	Brentwood, TN, United StatesHQ checked Sep 29, 2026	501-1,000	723 contacts →
	Partial evidence “FullStack is a leading software engineering and AI solutions company helping organizations modernize, innovate, and scale through intelligent technology and world-class AI-ready…” Source: RevenueBase Database · checked Sep 29, 2026
23	Preludesys	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	501-1,000	699 contacts →
	Indirect evidence “PreludeSys is a global technology solutions provider since 1998.” Source: RevenueBase Database · checked Sep 29, 2026
24	Suneratech	Indirect evidence	Troy, MI, United StatesHQ checked Sep 29, 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 29, 2026
25	Msys Technologies	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 29, 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 29, 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: software modernization services. 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 software modernization services.
Partial evidence: Its own public description names part of software modernization services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software modernization services. 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 1,535 software modernization services based in the United States

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Software modernization services based in the United States at a glance

As of Sep 29, 2026

27.8%Verified-email coverage

129.5Average contacts per company

11-50Median size (employees)

3.5%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

551

11-50

486

51-200

327

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,535 companies.

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 software modernization services, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “software modernization services”. 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 software modernization services), 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 software modernization services, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 55,368 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 29, 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.

Software modernization services by metro

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 software modernization services, 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 software modernization services are there based in the United States?

RevenueBase identified 1,535 software modernization services headquartered in the United States 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?

DXC Technology, headquartered in Ashburn, tops this list with the largest team on record.

Which city has the most software modernization services?

New York leads with 53 headquartered companies, followed by Austin (44) and Houston (33).

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 55,368 verified decision-maker contacts tracked across these 1,535 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 29, 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.