Company lists · Data refreshed September 2026

Top 25 Legacy system modernization based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 3,786 companies tracked

RevenueBase identified 3,786 company matches for legacy system modernization associated with the United States as of September 2026 and tracks 161,763 professional contacts across them, including 50,863 with verified work emails. New York is the largest hub.

This list covers company matches for legacy system modernization 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 September 20, 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 Sep 20, 2026 How this list was built

3,786Companies

161,763Contacts tracked

50,863Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest legacy system modernization based in the United States

Ranked by team size

Top 25 of 3,786 company matches for legacy system modernization based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	DXC Technology	Exact match	Ashburn, VA, United StatesHQ recorded Sep 20, 2026	10001+	82,768 contacts →
	Exact match “DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	SHI International Corp	Exact match	Somerset, NJ, United StatesHQ recorded Sep 20, 2026	5,001-10,000	6,734 contacts →
	Exact match “Think of SHI as your personal technology concierge.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Improving	Exact match	Plano, TX, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,578 contacts →
	Exact match “Improving is a leading IT professional services firm committed to helping companies achieve lasting success through modern technology.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Trace3	Exact match	Irvine, CA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,345 contacts →
	Exact match “Trace3 delivers business transformation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Royal Cyber INC	Exact match	Naperville, IL, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,325 contacts →
	Exact match “Royal Cyber is a trusted global IT consulting & digital transformation partner, empowering enterprises for over two decades to evolve with agility, security, and innovation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Infojini INC	Exact match	Columbia, MD, United StatesHQ recorded Sep 20, 2026	501-1,000	828 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Systems Engineering Services Corporation Sesc	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	201-500	747 contacts →
	Exact match “Systems Engineering Services Corporation (SESC), founded in 1989, is a leading provider of technology solutions to Fortune companies and government organizations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Ubeo Business Services	Exact match	Austin, TX, United StatesHQ recorded Sep 20, 2026	1,001-5,000	743 contacts →
	Exact match “UBEO Business Services is an end-to-end provider of business technology solutions and services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	System Soft Technologies	Exact match	Tampa, FL, United StatesHQ recorded Sep 20, 2026	501-1,000	732 contacts →
	Exact match “System Soft Group is an IT services and solutions company that helps organizations overcome limited managed IT capabilities and achieve key technology goals.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Heartland Business Systems	Exact match	Little Chute, WI, United StatesHQ recorded Sep 20, 2026	501-1,000	693 contacts →
	Exact match “HBS is your full-service technology solutions partner.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	NET At Work	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	201-500	679 contacts →
	Exact match “At Net at Work, we help organizations unleash the power of their business performance.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	The Select Group	Exact match	Raleigh, NC, United StatesHQ recorded Sep 20, 2026	1,001-5,000	651 contacts →
	Exact match “TSG is a technology consulting and services partner that helps organizations move faster, operate smarter, and extract greater value from technology investments in rapidly…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	Denali Advanced Integration	Exact match	Redmond, WA, United StatesHQ recorded Sep 20, 2026	501-1,000	617 contacts →
	Exact match “Denali Advanced Integration delivers Enterprise IT solutions and services globally.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	S & L International	Exact match	Arcadia, CA, United StatesHQ recorded Sep 20, 2026	n/a	607 contacts →
	Exact match “S&L International, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Srinsoft INC	Exact match	Boca Raton, FL, United StatesHQ recorded Sep 20, 2026	501-1,000	568 contacts →
	Exact match “SrinSoft is a leading IT consulting & engineering firm specializing in digital transformation, software development, and engineering solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Enterprise Solutions INC	Exact match	Warrenville, IL, United StatesHQ recorded Sep 20, 2026	501-1,000	540 contacts →
	Exact match “Enterprise Solutions, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Core BTS	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 20, 2026	501-1,000	523 contacts →
	Exact match “Core BTS, an NRI Group Company, is a full-service digital transformation consultancy that helps the world’s most impactful companies leverage today’s most powerful technologies to…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Infolob	Exact match	Irving, TX, United StatesHQ recorded Sep 20, 2026	201-500	476 contacts →
	Exact match “INFOLOB is the enterprise AI & Data transformation partner that engineers intelligent foundations into autonomous operations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Motivity Labs INC	Exact match	Irving, TX, United StatesHQ recorded Sep 20, 2026	201-500	459 contacts →
	Exact match “Motivity Labs is an award-winning IT Services company that focuses on Innovation and Digital Transformation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Technology Integration Group	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	201-500	455 contacts →
	Exact match “Our Mission: TIG will earn its place as a trusted partner to our clients, providing only the highest level of service, value and advanced technology to power their strategic…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	Softweb Solutions Inc.	Exact match	Plano, TX, United StatesHQ recorded Sep 20, 2026	501-1,000	430 contacts →
	Exact match “When we look at the way enterprises operate today, we see a fundamental challenge.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Svam International INC	Exact match	Great Neck, NY, United StatesHQ recorded Sep 20, 2026	1,001-5,000	423 contacts →
	Exact match “We bring #TheSVAMDifference by leveraging innovative thinking, a systematic approach to ensure Digital Transformation & deliver returns on technology investments for our clients.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Intone	Exact match	Iselin, NJ, United StatesHQ recorded Sep 20, 2026	501-1,000	411 contacts →
	Exact match “Incorporated in the year 2003 at New Jersey, USA, Intone Networks Inc.(Intone) is an ISO 27001:2013 and 9001:2015 certified leading IT consulting firm, specializing on IT…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Blueally	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	201-500	391 contacts →
	Exact match “At BlueAlly, our mission is to make technology more accessible, more certain, and more impactful for every organization.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Prutech Solutions, INC	Exact match	Iselin, NJ, United StatesHQ recorded Sep 20, 2026	501-1,000	369 contacts →
	Exact match “PruTech Solutions Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “legacy system modernization”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 3,786 legacy system modernization based in the United States

See the full list, filter by size, metro and specialty, and access 50,863 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Legacy system modernization based in the United States at a glance

As of Sep 20, 2026

31.4%Verified-email coverage

42.7Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

1,797

11-50

1,326

51-200

504

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 3,786 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 system modernization” 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 50,863 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 September 20, 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.

Legacy system modernization by metro

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 system modernization”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many legacy system modernization are there based in the United States?

RevenueBase identified 3,786 company matches for legacy system modernization associated with the United States as of September 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?

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

Which city has the most legacy system modernization?

New York leads with 111 company records, followed by Houston (82) and Austin (64).

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 50,863 professional contacts with verified work emails tracked across these 3,786 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 September 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 3,786 legacy system modernization based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Legacy system modernization by geography

Browse the directory

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.