Company lists · Data refreshed September 2026
Top 25 Legacy app modernization companies based in the United States
RevenueBase identified 661 company matches for legacy app modernization companies associated with the United States as of September 2026 and tracks 32,357 professional contacts across them, including 8,732 with verified work emails. Austin is the largest hub.
This list covers company matches for legacy app 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 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.
The 25 largest legacy app modernization companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 7,360 contacts → | ||||
Exact match “RSI is a trusted software engineering and digital transformation services partner to global enterprises navigating technological change.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 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 | |||||
| 3 | 1,524 contacts → | ||||
Exact match “Hughes Systique Corporation (HSC) is a global digital engineering and transformation partner enabling enterprises to modernize, innovate, and grow through its AI-First approach.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 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 | |||||
| 5 | 844 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 841 contacts → | ||||
Exact match “Founded in 1998, XTGlobal, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 692 contacts → | ||||
Exact match “SuneraTech is now at the frontline of Digital Transformation and enables innovation to promote futuristic organizations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 688 contacts → | ||||
Exact match “MSys Technologies (SDC Awards Winner) is a reliable partner for product engineering services and digital transformation projects for its Enterprise and Silicon Valley clientele.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 549 contacts → | ||||
Exact match “Gemini Consulting & Services (GCS) is a leading provider of technology solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 508 contacts → | ||||
Exact match “Your Business Technology Partner.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 507 contacts → | ||||
Exact match “Growth Acceleration Partners is a consulting and technology services company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 468 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 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 | |||||
| 14 | 378 contacts → | ||||
Exact match “Excelencia is a US-based, ISO 27001:2022-certified technology services company, specializing in Oracle solutions and Digital Engineering.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 372 contacts → | ||||
Exact match “At United Techno, we harness experience and collaboration to address customer challenges and devise intuitive solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 334 contacts → | ||||
Exact match “Empowering enterprise transformation with innovation, agility, and cloud-native modernization.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 303 contacts → | ||||
Exact match “Primus Software Corporation, a leading software services company with over 29 years of industry experience, is a trusted Business & Technology Partner for enterprises seeking to…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 286 contacts → | ||||
Exact match “ValzoSoft Solutions – Driving Innovation, Empowering Growth At ValzoSoft Solutions, we turn visionary ideas into transformative digital experiences.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 278 contacts → | ||||
Exact match “At Nalashaa Solutions, we’re not just technologists; we’re your trusted partners in transformation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 251 contacts → | ||||
Exact match “Unified Infotech is an award winning digital transformation partner that was founded in 2010.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 235 contacts → | ||||
Exact match “Geniusee is an AI and software engineering company with delivery hubs in Ukraine and Poland.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 227 contacts → | ||||
Exact match “Alliance Global Services is a software development firm that partners with software, technology and information-intensive businesses on their mission critical work.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 222 contacts → | ||||
Exact match “Zymr is a fast-paced Silicon Valley-based software company that is leading the digital change.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 210 contacts → | ||||
Exact match “Founded in 1994, Congruent Software is a leading software development outsourcing company specialized in custom applications development, enterprise software, cloud computing, and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 207 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 · 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 app modernization companies”. 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 661 legacy app modernization companies based in the United States
See the full list, filter by size, metro and specialty, and access 8,732 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Legacy app modernization companies based in the United States at a glance
As of Sep 20, 2026Companies by employee count
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 661 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 app 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 8,732 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.
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 app modernization companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many legacy app modernization companies are there based in the United States?
RevenueBase identified 661 company matches for legacy app modernization companies 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?
R Systems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most legacy app modernization companies?
Austin leads with 25 company records, followed by New York (22) and Atlanta (13).
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 8,732 professional contacts with verified work emails tracked across these 661 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 661 legacy app modernization companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Legacy app modernization companies by geography
- Legacy app modernization companies based in Ahmedabad, India
- Legacy app modernization companies based in Bangalore, India
- Legacy app modernization companies based in Chennai, India
- Legacy app modernization companies based in Hyderabad, India
- Legacy app modernization companies based in Noida, India
- Legacy app modernization companies based in Pune, India
- Legacy app modernization companies based in Australia
- Legacy app modernization companies based in Brazil
- Legacy app modernization companies based in Canada
- Legacy app modernization companies based in France
- Legacy app modernization companies based in Germany
- Legacy app modernization companies based in India
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Legacy app modernization companies based in Ahmedabad, India
- Legacy app modernization companies based in Bangalore, India
- Legacy app modernization companies based in Chennai, India
- Legacy app modernization companies based in Hyderabad, India
- Legacy app modernization companies based in Noida, India
- Legacy app modernization companies based in Pune, India
Company intelligence · public preview
Top 25 legacy app modernization companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 661 matching company records for legacy app modernization companies based in the United States, with 32,357 tracked contacts and 8,732 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 legacy app modernization companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  R Systemsrsystems.comHQ: El Dorado Hills, CA, United StatesReported employees: 5,001-10,000 | El Dorado Hills, CA, United States | 5,001-10,000 | Exact match | 7,360 contacts → |
“RSI is a trusted software engineering and digital transformation services partner to global enterprises navigating technological change.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Improvingimproving.comHQ: Plano, TX, United StatesReported employees: 1,001-5,000 | Plano, TX, United States | 1,001-5,000 | Exact match | 1,578 contacts → |
“Improving is a leading IT professional services firm committed to helping companies achieve lasting success through modern technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Rockville, MD, United StatesReported employees: 1,001-5,000 | Rockville, MD, United States | 1,001-5,000 | Exact match | 1,524 contacts → |
“Hughes Systique Corporation (HSC) is a global digital engineering and transformation partner enabling enterprises to modernize, innovate, and grow through its AI-First approach.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Royal Cyber INCroyalcyber.comHQ: Naperville, IL, United StatesReported employees: 1,001-5,000 | Naperville, IL, United States | 1,001-5,000 | Exact match | 1,325 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Tanisha Systems, INCtanishasystems.comHQ: Boston, MA, United StatesReported employees: 1,001-5,000 | Boston, MA, United States | 1,001-5,000 | Exact match | 844 contacts → |
“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.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Xtglobal, INCxtglobal.comHQ: Plano, TX, United StatesReported employees: 501-1,000 | Plano, TX, United States | 501-1,000 | Exact match | 841 contacts → |
“Founded in 1998, XTGlobal, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Suneratechsuneratech.comHQ: Troy, MI, United StatesReported employees: 1,001-5,000 | Troy, MI, United States | 1,001-5,000 | Exact match | 692 contacts → |
“SuneraTech is now at the frontline of Digital Transformation and enables innovation to promote futuristic organizations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Msys Technologiesmsystechnologies.comHQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 688 contacts → |
“MSys Technologies (SDC Awards Winner) is a reliable partner for product engineering services and digital transformation projects for its Enterprise and Silicon Valley clientele.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Gemini Consulting & Servicesgemini-us.comHQ: St. Louis, MO, United StatesReported employees: 501-1,000 | St. Louis, MO, United States | 501-1,000 | Exact match | 549 contacts → |
“Gemini Consulting & Services (GCS) is a leading provider of technology solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  STGstgconsulting.comHQ: Salt Lake City, UT, United StatesReported employees: 51-200 | Salt Lake City, UT, United States | 51-200 | Exact match | 508 contacts → |
“Your Business Technology Partner.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Growth Acceleration Partnersgrowthaccelerationpartners.comHQ: Austin, TX, United StatesReported employees: 501-1,000 | Austin, TX, United States | 501-1,000 | Exact match | 507 contacts → |
“Growth Acceleration Partners is a consulting and technology services company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Zoolatechzoolatech.comHQ: Miami, FL, United StatesReported employees: 501-1,000 | Miami, FL, United States | 501-1,000 | Exact match | 468 contacts → |
“Zoolatech is a global software engineering partner helping enterprises modernize legacy systems, adopt AI, and build scalable digital platforms.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Softweb Solutions Inc.softwebsolutions.comHQ: Plano, TX, United StatesReported employees: 501-1,000 | Plano, TX, United States | 501-1,000 | Exact match | 430 contacts → |
“When we look at the way enterprises operate today, we see a fundamental challenge.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Excelenciaexcelenciaconsulting.comHQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 378 contacts → |
“Excelencia is a US-based, ISO 27001:2022-certified technology services company, specializing in Oracle solutions and Digital Engineering.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  United Technounitedtechno.comHQ: Pleasanton, CA, United StatesReported employees: 201-500 | Pleasanton, CA, United States | 201-500 | Exact match | 372 contacts → |
“At United Techno, we harness experience and collaboration to address customer challenges and devise intuitive solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Newt Globalnewtglobal.comHQ: Irving, TX, United StatesReported employees: 501-1,000 | Irving, TX, United States | 501-1,000 | Exact match | 334 contacts → |
“Empowering enterprise transformation with innovation, agility, and cloud-native modernization.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Primus Software Corporationprimussoft.comHQ: Duluth, GA, United StatesReported employees: 201-500 | Duluth, GA, United States | 201-500 | Exact match | 303 contacts → |
“Primus Software Corporation, a leading software services company with over 29 years of industry experience, is a trusted Business & Technology Partner for enterprises seeking to…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Valzo Soft Solutionsvalzosoft.comHQ: Alpharetta, GA, United StatesReported employees: 1,001-5,000 | Alpharetta, GA, United States | 1,001-5,000 | Exact match | 286 contacts → |
“ValzoSoft Solutions – Driving Innovation, Empowering Growth At ValzoSoft Solutions, we turn visionary ideas into transformative digital experiences.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Nalashaa Solutionsnalashaa.comHQ: Edison, NJ, United StatesReported employees: 201-500 | Edison, NJ, United States | 201-500 | Exact match | 278 contacts → |
“At Nalashaa Solutions, we’re not just technologists; we’re your trusted partners in transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Unified Infotechunifiedinfotech.net HQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 251 contacts → |
“Unified Infotech is an award winning digital transformation partner that was founded in 2010.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Geniuseegeniusee.comHQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 235 contacts → |
“Geniusee is an AI and software engineering company with delivery hubs in Ukraine and Poland.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Alliance Global Servicesepam.comHQ: Conshohocken, PA, United StatesReported employees: 10001+ | Conshohocken, PA, United States | 10001+ | Exact match | 227 contacts → |
“Alliance Global Services is a software development firm that partners with software, technology and information-intensive businesses on their mission critical work.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: San Jose, CA, United StatesReported employees: 201-500 | San Jose, CA, United States | 201-500 | Exact match | 222 contacts → |
“Zymr is a fast-paced Silicon Valley-based software company that is leading the digital change.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Congruent Software INCcongruentsoft.comHQ: Bellevue, WA, United StatesReported employees: 201-500 | Bellevue, WA, United States | 201-500 | Exact match | 210 contacts → |
“Founded in 1994, Congruent Software is a leading software development outsourcing company specialized in custom applications development, enterprise software, cloud computing, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Pulse Software Solutions LLCpulsesolutions.comHQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 207 contacts → |
“Pulse Software Solutions is a Denver-based custom software development firm with a proud history of building internet-based systems since 1998.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 661 company matches
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Legacy app modernization companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
659 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 661 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for legacy app modernization companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many legacy app modernization companies did RevenueBase find based in the United States?
The saved snapshot records 661 matching company records, 32,357 tracked contacts and 8,732 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Legacy app modernization companies by geography
- Legacy app modernization companies based in Ahmedabad, India
- Legacy app modernization companies based in Bangalore, India
- Legacy app modernization companies based in Chennai, India
- Legacy app modernization companies based in Hyderabad, India
- Legacy app modernization companies based in Noida, India
- Legacy app modernization companies based in Pune, India
- Legacy app modernization companies based in Australia
- Legacy app modernization companies based in Brazil
- Legacy app modernization companies based in Canada
- Legacy app modernization companies based in France
- Legacy app modernization companies based in Germany
- Legacy app modernization companies based in India
Cite this list
RevenueBase Data Team. Top 25 legacy app modernization companies based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/legacy-app-modernization-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Legacy app modernization companies based in Ahmedabad, India
- Legacy app modernization companies based in Bangalore, India
- Legacy app modernization companies based in Chennai, India
- Legacy app modernization companies based in Hyderabad, India
- Legacy app modernization companies based in Noida, India
- Legacy app modernization companies based in Pune, India
Company intelligence · public preview
Top 25 legacy app modernization companies based in the United States
RevenueBase records 661 matching company records for legacy app modernization companies based in the United States, with 32,357 tracked contacts and 8,732 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 legacy app modernization companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | R Systemsrsystems.com HQ: El Dorado Hills, CA, United StatesReported employees: 5,001-10,000 | El Dorado Hills, CA, United States | 5,001-10,000 | Exact match | 7,360 contacts → |
“RSI is a trusted software engineering and digital transformation services partner to global enterprises navigating technological change.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Improvingimproving.com HQ: Plano, TX, United StatesReported employees: 1,001-5,000 | Plano, TX, United States | 1,001-5,000 | Exact match | 1,578 contacts → |
“Improving is a leading IT professional services firm committed to helping companies achieve lasting success through modern technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Rockville, MD, United StatesReported employees: 1,001-5,000 | Rockville, MD, United States | 1,001-5,000 | Exact match | 1,524 contacts → |
“Hughes Systique Corporation (HSC) is a global digital engineering and transformation partner enabling enterprises to modernize, innovate, and grow through its AI-First approach.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Royal Cyber INCroyalcyber.com HQ: Naperville, IL, United StatesReported employees: 1,001-5,000 | Naperville, IL, United States | 1,001-5,000 | Exact match | 1,325 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Tanisha Systems, INCtanishasystems.com HQ: Boston, MA, United StatesReported employees: 1,001-5,000 | Boston, MA, United States | 1,001-5,000 | Exact match | 844 contacts → |
“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.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Xtglobal, INCxtglobal.com HQ: Plano, TX, United StatesReported employees: 501-1,000 | Plano, TX, United States | 501-1,000 | Exact match | 841 contacts → |
“Founded in 1998, XTGlobal, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Suneratechsuneratech.com HQ: Troy, MI, United StatesReported employees: 1,001-5,000 | Troy, MI, United States | 1,001-5,000 | Exact match | 692 contacts → |
“SuneraTech is now at the frontline of Digital Transformation and enables innovation to promote futuristic organizations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Msys Technologiesmsystechnologies.com HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 688 contacts → |
“MSys Technologies (SDC Awards Winner) is a reliable partner for product engineering services and digital transformation projects for its Enterprise and Silicon Valley clientele.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Gemini Consulting & Servicesgemini-us.com HQ: St. Louis, MO, United StatesReported employees: 501-1,000 | St. Louis, MO, United States | 501-1,000 | Exact match | 549 contacts → |
“Gemini Consulting & Services (GCS) is a leading provider of technology solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | STGstgconsulting.com HQ: Salt Lake City, UT, United StatesReported employees: 51-200 | Salt Lake City, UT, United States | 51-200 | Exact match | 508 contacts → |
“Your Business Technology Partner.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Growth Acceleration Partnersgrowthaccelerationpartners.com HQ: Austin, TX, United StatesReported employees: 501-1,000 | Austin, TX, United States | 501-1,000 | Exact match | 507 contacts → |
“Growth Acceleration Partners is a consulting and technology services company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Zoolatechzoolatech.com HQ: Miami, FL, United StatesReported employees: 501-1,000 | Miami, FL, United States | 501-1,000 | Exact match | 468 contacts → |
“Zoolatech is a global software engineering partner helping enterprises modernize legacy systems, adopt AI, and build scalable digital platforms.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Softweb Solutions Inc.softwebsolutions.com HQ: Plano, TX, United StatesReported employees: 501-1,000 | Plano, TX, United States | 501-1,000 | Exact match | 430 contacts → |
“When we look at the way enterprises operate today, we see a fundamental challenge.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Excelenciaexcelenciaconsulting.com HQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 378 contacts → |
“Excelencia is a US-based, ISO 27001:2022-certified technology services company, specializing in Oracle solutions and Digital Engineering.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | United Technounitedtechno.com HQ: Pleasanton, CA, United StatesReported employees: 201-500 | Pleasanton, CA, United States | 201-500 | Exact match | 372 contacts → |
“At United Techno, we harness experience and collaboration to address customer challenges and devise intuitive solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Newt Globalnewtglobal.com HQ: Irving, TX, United StatesReported employees: 501-1,000 | Irving, TX, United States | 501-1,000 | Exact match | 334 contacts → |
“Empowering enterprise transformation with innovation, agility, and cloud-native modernization.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Primus Software Corporationprimussoft.com HQ: Duluth, GA, United StatesReported employees: 201-500 | Duluth, GA, United States | 201-500 | Exact match | 303 contacts → |
“Primus Software Corporation, a leading software services company with over 29 years of industry experience, is a trusted Business & Technology Partner for enterprises seeking to…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Valzo Soft Solutionsvalzosoft.com HQ: Alpharetta, GA, United StatesReported employees: 1,001-5,000 | Alpharetta, GA, United States | 1,001-5,000 | Exact match | 286 contacts → |
“ValzoSoft Solutions – Driving Innovation, Empowering Growth At ValzoSoft Solutions, we turn visionary ideas into transformative digital experiences.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Nalashaa Solutionsnalashaa.com HQ: Edison, NJ, United StatesReported employees: 201-500 | Edison, NJ, United States | 201-500 | Exact match | 278 contacts → |
“At Nalashaa Solutions, we’re not just technologists; we’re your trusted partners in transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Unified Infotechunifiedinfotech.net HQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 251 contacts → |
“Unified Infotech is an award winning digital transformation partner that was founded in 2010.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Geniuseegeniusee.com HQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 235 contacts → |
“Geniusee is an AI and software engineering company with delivery hubs in Ukraine and Poland.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Alliance Global Servicesepam.com HQ: Conshohocken, PA, United StatesReported employees: 10001+ | Conshohocken, PA, United States | 10001+ | Exact match | 227 contacts → |
“Alliance Global Services is a software development firm that partners with software, technology and information-intensive businesses on their mission critical work.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: San Jose, CA, United StatesReported employees: 201-500 | San Jose, CA, United States | 201-500 | Exact match | 222 contacts → |
“Zymr is a fast-paced Silicon Valley-based software company that is leading the digital change.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Congruent Software INCcongruentsoft.com HQ: Bellevue, WA, United StatesReported employees: 201-500 | Bellevue, WA, United States | 201-500 | Exact match | 210 contacts → |
“Founded in 1994, Congruent Software is a leading software development outsourcing company specialized in custom applications development, enterprise software, cloud computing, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Pulse Software Solutions LLCpulsesolutions.com HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 207 contacts → |
“Pulse Software Solutions is a Denver-based custom software development firm with a proud history of building internet-based systems since 1998.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 661 company matches
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Legacy app modernization companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
659 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 661 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for legacy app modernization companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many legacy app modernization companies did RevenueBase find based in the United States?
The saved snapshot records 661 matching company records, 32,357 tracked contacts and 8,732 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Legacy app modernization companies by geography
- Legacy app modernization companies based in Ahmedabad, India
- Legacy app modernization companies based in Bangalore, India
- Legacy app modernization companies based in Chennai, India
- Legacy app modernization companies based in Hyderabad, India
- Legacy app modernization companies based in Noida, India
- Legacy app modernization companies based in Pune, India
- Legacy app modernization companies based in Australia
- Legacy app modernization companies based in Brazil
- Legacy app modernization companies based in Canada
- Legacy app modernization companies based in France
- Legacy app modernization companies based in Germany
- Legacy app modernization companies based in India
Cite this list
RevenueBase Data Team. Top 25 legacy app modernization companies based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/legacy-app-modernization-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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