Company lists · Data refreshed November 2026
Top 22 Mainframe modernization companies based in the United States
RevenueBase identified 395 company matches for mainframe modernization companies associated with the United States as of November 2026 and tracks 153,316 professional contacts across them, including 41,763 with verified work emails. New York is the largest hub.
This list covers company matches for mainframe 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.
The 22 largest mainframe modernization companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 86,844 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 3,542 contacts → | ||||
Exact match “Ensono is an expert technology adviser and managed service provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 2,385 contacts → | ||||
Exact match “Trianz is a "transformation services as a software" company - helping enterprises accelerate cloud adoption and AI transformation through Concierto, our unified, AI-first platform…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 1,063 contacts → | ||||
Exact match “IBM i is evolving.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 691 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 547 contacts → | ||||
Exact match “Atyeti is a business and technology consulting firm headquartered in Princeton, New Jersey, with offices in USA, UK, Ireland, Switzerland, Poland, India, Singapore, Malaysia…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 493 contacts → | ||||
Exact match “Zoolatech is a global software engineering partner helping enterprises modernize legacy systems, adopt AI, and build scalable digital platforms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 432 contacts → | ||||
Exact match “When we look at the way enterprises operate today, we see a fundamental challenge.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 419 contacts → | ||||
Exact match “RSD is now a part of Rocket Software.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 386 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 272 contacts → | ||||
Exact match “At Nalashaa Solutions, we’re not just technologists; we’re your trusted partners in transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 247 contacts → | ||||
Exact match “Founded in 2004, Reliable Software is a solutions firm with a suite of offerings to help Clients Modernize their operations through Digital Technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 208 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 | |||||
| 14 | 116 contacts → | ||||
Exact match “Evolving Solutions is a technology solutions provider that helps clients modernize and automate their mission-critical applications and infrastructure to support business…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 113 contacts → | ||||
Exact match “Founded in 2001, HiFX is a software consultancy firm with a multi-disciplinary team of analysts, engineers, architects and UI/UX specialists.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 108 contacts → | ||||
Exact match “Callibrity is the software consultancy helping clients do more with technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 108 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 | |||||
| 18 | 98 contacts → | ||||
Exact match “Krish Services Group: Your Strategic Partner for Modernizing and Scaling Software and Cloud Solutions Founded in 2011, Krish Services Group has transcended its Cleveland roots to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 92 contacts → | ||||
Exact match “The Canton Group is a business technology services firm empowering government agencies and enterprise organizations to modernize, automate, and secure mission-critical systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 90 contacts → | ||||
Exact match “AQL Technologies is a Microsoft Solutions Partner in Digital App & Innovation and Data & AI providing the highest level of IT expertise and customer satisfaction for the past 15…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 90 contacts → | ||||
Exact match “Since 1982, Treehouse Software has been helping mainframe customers with innovative tools, services, and training.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 89 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 | |||||
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 “mainframe 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 22 of 395 mainframe modernization companies based in the United States
See the full list, filter by size, metro and specialty, and access 41,763 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Mainframe modernization companies based in the United States at a glance
As of Nov 6, 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 395 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 “mainframe 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 41,763 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 “mainframe modernization companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many mainframe modernization companies are there based in the United States?
RevenueBase identified 395 company matches for mainframe 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?
DXC Technology tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most mainframe modernization companies?
New York leads with 17 company records, followed by Dallas (12) and Houston (11).
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 41,763 professional contacts with verified work emails tracked across these 395 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.
Ready to reach these companies? Verified emails and direct dials for all 395 mainframe modernization companies based in the United States. Start with a free account, no credit card.
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Mainframe modernization companies by geography
- Mainframe modernization companies based in Bangalore, India
- Mainframe modernization companies based in Australia
- Mainframe modernization companies based in Canada
- Mainframe modernization companies based in France
- Mainframe modernization companies based in Germany
- Mainframe modernization companies based in India
- Mainframe modernization companies based in the United Kingdom
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
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- Lists A-Z
- New lists
- Mainframe modernization companies based in Bangalore, India
- Mainframe modernization companies based in Australia
- Mainframe modernization companies based in Canada
- Mainframe modernization companies based in France
- Mainframe modernization companies based in Germany
- Mainframe modernization companies based in India
Company intelligence · public preview
Top 22 mainframe 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 395 matching company records for mainframe modernization companies based in the United States, with 153,316 tracked contacts and 41,763 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 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 22 mainframe 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 |  DXC Technologydxc.comHQ: Ashburn, VA, United StatesReported employees: 10001+ | Ashburn, VA, United States | 10001+ | Exact match | 86,844 contacts → |
“DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Ensonoensono.comHQ: Downers Grove, IL, United StatesReported employees: 1,001-5,000 | Downers Grove, IL, United States | 1,001-5,000 | Exact match | 3,542 contacts → |
“Ensono is an expert technology adviser and managed service provider.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Trianztrianz.comHQ: Herndon, VA, United StatesReported employees: 1,001-5,000 | Herndon, VA, United States | 1,001-5,000 | Exact match | 2,385 contacts → |
“Trianz is a "transformation services as a software" company - helping enterprises accelerate cloud adoption and AI transformation through Concierto, our unified, AI-first platform…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  programmers.ioprogrammers.ioHQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 1,063 contacts → |
“IBM i is evolving.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Suneratechsuneratech.comHQ: Troy, MD, United StatesReported employees: 1,001-5,000 | Troy, MD, United States | 1,001-5,000 | Exact match | 691 contacts → |
“SuneraTech is now at the frontline of Digital Transformation and enables innovation to promote futuristic organizations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Atyeti INCatyeti.comHQ: Princeton, NC, United StatesReported employees: 501-1,000 | Princeton, NC, United States | 501-1,000 | Exact match | 547 contacts → |
“Atyeti is a business and technology consulting firm headquartered in Princeton, New Jersey, with offices in USA, UK, Ireland, Switzerland, Poland, India, Singapore, Malaysia…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Zoolatechzoolatech.comHQ: Miami, FL, United StatesReported employees: 501-1,000 | Miami, FL, United States | 501-1,000 | Exact match | 493 contacts → |
“Zoolatech is a global software engineering partner helping enterprises modernize legacy systems, adopt AI, and build scalable digital platforms.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Softweb Solutions Inc.softwebsolutions.comHQ: Plano, TX, United StatesReported employees: 501-1,000 | Plano, TX, United States | 501-1,000 | Exact match | 432 contacts → |
“When we look at the way enterprises operate today, we see a fundamental challenge.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  RSDrocketsoftware.comHQ: Waltham, MA, United StatesReported employees: 1,001-5,000 | Waltham, MA, United States | 1,001-5,000 | Exact match | 419 contacts → |
“RSD is now a part of Rocket Software.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  United Technounitedtechno.comHQ: Pleasanton, FL, United StatesReported employees: 201-500 | Pleasanton, FL, United States | 201-500 | Exact match | 386 contacts → |
“At United Techno, we harness experience and collaboration to address customer challenges and devise intuitive solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Nalashaa Solutionsnalashaa.comHQ: Edison, NJ, United StatesReported employees: 201-500 | Edison, NJ, United States | 201-500 | Exact match | 272 contacts → |
“At Nalashaa Solutions, we’re not just technologists; we’re your trusted partners in transformation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Reliable Softwarersrit.comHQ: Northville, MI, United StatesReported employees: 1,001-5,000 | Northville, MI, United States | 1,001-5,000 | Exact match | 247 contacts → |
“Founded in 2004, Reliable Software is a solutions firm with a suite of offerings to help Clients Modernize their operations through Digital Technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Astadiaastadia.comHQ: St. Louis, MO, United StatesReported employees: 201-500 | St. Louis, MO, United States | 201-500 | Exact match | 208 contacts → |
“Astadia is the industry leader for mainframe migrations and modernizations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Evolving Solutionsevolvingsol.comHQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 116 contacts → |
“Evolving Solutions is a technology solutions provider that helps clients modernize and automate their mission-critical applications and infrastructure to support business…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  HIFXhifx.inHQ: Mountain View, CA, United StatesReported employees: 51-200 | Mountain View, CA, United States | 51-200 | Exact match | 113 contacts → |
“Founded in 2001, HiFX is a software consultancy firm with a multi-disciplinary team of analysts, engineers, architects and UI/UX specialists.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Callibritycallibrity.comHQ: Cincinnati, OH, United StatesReported employees: 51-200 | Cincinnati, OH, United States | 51-200 | Exact match | 108 contacts → |
“Callibrity is the software consultancy helping clients do more with technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Evolveware, INCevolveware.comHQ: Santa Clara, CA, United StatesReported employees: 51-200 | Santa Clara, CA, United States | 51-200 | Exact match | 108 contacts → |
“Founded in 2001, EvolveWare provides seamless application modernization journeys for enterprises, government organizations and global partners.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Krish Services Groupkrishservicesgroup.comHQ: Chagrin Falls, OH, United StatesReported employees: 51-200 | Chagrin Falls, OH, United States | 51-200 | Exact match | 98 contacts → |
“Krish Services Group: Your Strategic Partner for Modernizing and Scaling Software and Cloud Solutions Founded in 2011, Krish Services Group has transcended its Cleveland roots to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  The Canton Groupcantongroup.comHQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 92 contacts → |
“The Canton Group is a business technology services firm empowering government agencies and enterprise organizations to modernize, automate, and secure mission-critical systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  AQL Technologiesaqltech.comHQ: Park Ridge, IL, United StatesReported employees: 51-200 | Park Ridge, IL, United States | 51-200 | Exact match | 90 contacts → |
“AQL Technologies is a Microsoft Solutions Partner in Digital App & Innovation and Data & AI providing the highest level of IT expertise and customer satisfaction for the past 15…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Treehouse Softwaretreehouse.comHQ: Sewickley, PA, United StatesReported employees: 11-50 | Sewickley, PA, United States | 11-50 | Exact match | 90 contacts → |
“Since 1982, Treehouse Software has been helping mainframe customers with innovative tools, services, and training.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  I Verve INCi-verve.comHQ: Edison, FL, United StatesReported employees: 51-200 | Edison, FL, United States | 51-200 | Exact match | 89 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 22 of 395 company matches
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Mainframe modernization companies: dataset insights
November 6, 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
393 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 395 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: November 6, 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 mainframe 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 mainframe modernization companies did RevenueBase find based in the United States?
The saved snapshot records 395 matching company records, 153,316 tracked contacts and 41,763 verified emails. The public preview displays 22 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: November 6, 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
Mainframe modernization companies by geography
- Mainframe modernization companies based in Bangalore, India
- Mainframe modernization companies based in Australia
- Mainframe modernization companies based in Canada
- Mainframe modernization companies based in France
- Mainframe modernization companies based in Germany
- Mainframe modernization companies based in India
- Mainframe modernization companies based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 22 mainframe modernization companies based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/mainframe-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
- Mainframe modernization companies based in Bangalore, India
- Mainframe modernization companies based in Australia
- Mainframe modernization companies based in Canada
- Mainframe modernization companies based in France
- Mainframe modernization companies based in Germany
- Mainframe modernization companies based in India
Company intelligence · public preview
Top 22 mainframe modernization companies based in the United States
RevenueBase records 395 matching company records for mainframe modernization companies based in the United States, with 153,316 tracked contacts and 41,763 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 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 22 mainframe 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 | DXC Technologydxc.com HQ: Ashburn, VA, United StatesReported employees: 10001+ | Ashburn, VA, United States | 10001+ | Exact match | 86,844 contacts → |
“DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ensonoensono.com HQ: Downers Grove, IL, United StatesReported employees: 1,001-5,000 | Downers Grove, IL, United States | 1,001-5,000 | Exact match | 3,542 contacts → |
“Ensono is an expert technology adviser and managed service provider.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Trianztrianz.com HQ: Herndon, VA, United StatesReported employees: 1,001-5,000 | Herndon, VA, United States | 1,001-5,000 | Exact match | 2,385 contacts → |
“Trianz is a "transformation services as a software" company - helping enterprises accelerate cloud adoption and AI transformation through Concierto, our unified, AI-first platform…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | programmers.ioprogrammers.io HQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 1,063 contacts → |
“IBM i is evolving.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Suneratechsuneratech.com HQ: Troy, MD, United StatesReported employees: 1,001-5,000 | Troy, MD, United States | 1,001-5,000 | Exact match | 691 contacts → |
“SuneraTech is now at the frontline of Digital Transformation and enables innovation to promote futuristic organizations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Atyeti INCatyeti.com HQ: Princeton, NC, United StatesReported employees: 501-1,000 | Princeton, NC, United States | 501-1,000 | Exact match | 547 contacts → |
“Atyeti is a business and technology consulting firm headquartered in Princeton, New Jersey, with offices in USA, UK, Ireland, Switzerland, Poland, India, Singapore, Malaysia…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Zoolatechzoolatech.com HQ: Miami, FL, United StatesReported employees: 501-1,000 | Miami, FL, United States | 501-1,000 | Exact match | 493 contacts → |
“Zoolatech is a global software engineering partner helping enterprises modernize legacy systems, adopt AI, and build scalable digital platforms.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Softweb Solutions Inc.softwebsolutions.com HQ: Plano, TX, United StatesReported employees: 501-1,000 | Plano, TX, United States | 501-1,000 | Exact match | 432 contacts → |
“When we look at the way enterprises operate today, we see a fundamental challenge.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | RSDrocketsoftware.com HQ: Waltham, MA, United StatesReported employees: 1,001-5,000 | Waltham, MA, United States | 1,001-5,000 | Exact match | 419 contacts → |
“RSD is now a part of Rocket Software.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | United Technounitedtechno.com HQ: Pleasanton, FL, United StatesReported employees: 201-500 | Pleasanton, FL, United States | 201-500 | Exact match | 386 contacts → |
“At United Techno, we harness experience and collaboration to address customer challenges and devise intuitive solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Nalashaa Solutionsnalashaa.com HQ: Edison, NJ, United StatesReported employees: 201-500 | Edison, NJ, United States | 201-500 | Exact match | 272 contacts → |
“At Nalashaa Solutions, we’re not just technologists; we’re your trusted partners in transformation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Reliable Softwarersrit.com HQ: Northville, MI, United StatesReported employees: 1,001-5,000 | Northville, MI, United States | 1,001-5,000 | Exact match | 247 contacts → |
“Founded in 2004, Reliable Software is a solutions firm with a suite of offerings to help Clients Modernize their operations through Digital Technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Astadiaastadia.com HQ: St. Louis, MO, United StatesReported employees: 201-500 | St. Louis, MO, United States | 201-500 | Exact match | 208 contacts → |
“Astadia is the industry leader for mainframe migrations and modernizations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Evolving Solutionsevolvingsol.com HQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 116 contacts → |
“Evolving Solutions is a technology solutions provider that helps clients modernize and automate their mission-critical applications and infrastructure to support business…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HIFXhifx.in HQ: Mountain View, CA, United StatesReported employees: 51-200 | Mountain View, CA, United States | 51-200 | Exact match | 113 contacts → |
“Founded in 2001, HiFX is a software consultancy firm with a multi-disciplinary team of analysts, engineers, architects and UI/UX specialists.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Callibritycallibrity.com HQ: Cincinnati, OH, United StatesReported employees: 51-200 | Cincinnati, OH, United States | 51-200 | Exact match | 108 contacts → |
“Callibrity is the software consultancy helping clients do more with technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Evolveware, INCevolveware.com HQ: Santa Clara, CA, United StatesReported employees: 51-200 | Santa Clara, CA, United States | 51-200 | Exact match | 108 contacts → |
“Founded in 2001, EvolveWare provides seamless application modernization journeys for enterprises, government organizations and global partners.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Krish Services Groupkrishservicesgroup.com HQ: Chagrin Falls, OH, United StatesReported employees: 51-200 | Chagrin Falls, OH, United States | 51-200 | Exact match | 98 contacts → |
“Krish Services Group: Your Strategic Partner for Modernizing and Scaling Software and Cloud Solutions Founded in 2011, Krish Services Group has transcended its Cleveland roots to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | The Canton Groupcantongroup.com HQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 92 contacts → |
“The Canton Group is a business technology services firm empowering government agencies and enterprise organizations to modernize, automate, and secure mission-critical systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | AQL Technologiesaqltech.com HQ: Park Ridge, IL, United StatesReported employees: 51-200 | Park Ridge, IL, United States | 51-200 | Exact match | 90 contacts → |
“AQL Technologies is a Microsoft Solutions Partner in Digital App & Innovation and Data & AI providing the highest level of IT expertise and customer satisfaction for the past 15…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Treehouse Softwaretreehouse.com HQ: Sewickley, PA, United StatesReported employees: 11-50 | Sewickley, PA, United States | 11-50 | Exact match | 90 contacts → |
“Since 1982, Treehouse Software has been helping mainframe customers with innovative tools, services, and training.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | I Verve INCi-verve.com HQ: Edison, FL, United StatesReported employees: 51-200 | Edison, FL, United States | 51-200 | Exact match | 89 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 22 of 395 company matches
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Mainframe modernization companies: dataset insights
November 6, 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
393 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 395 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: November 6, 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 mainframe 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 mainframe modernization companies did RevenueBase find based in the United States?
The saved snapshot records 395 matching company records, 153,316 tracked contacts and 41,763 verified emails. The public preview displays 22 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: November 6, 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.
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Cite this list
RevenueBase Data Team. Top 22 mainframe modernization companies based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/mainframe-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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