Company lists · Data refreshed September 2026
Top 25 Tier 1 IT companies based in the United States
RevenueBase identified 717 company matches for tier 1 IT companies associated with the United States as of September 2026 and tracks 783,066 professional contacts across them, including 172,754 with verified work emails. New York is the largest hub.
This list covers company matches for tier 1 IT 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 21, 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 tier 1 IT companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 327,607 contacts → | ||||
Exact match “At IBM, we do more than work.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 82,768 contacts → | ||||
Exact match “DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 35,232 contacts → | ||||
Exact match “Lenovo is a US$83 billion revenue global technology powerhouse, ranked #196 in the Fortune Global 500, and serving millions of customers every day in 180 markets.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 22,390 contacts → | ||||
Exact match “NTT DATA, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 18,676 contacts → | ||||
Exact match “Unisys is a global technology solutions company that powers breakthroughs for the world’s leading organizations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 12,231 contacts → | ||||
Exact match “Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 3,051 contacts → | ||||
Exact match “MOURI Tech - the global enterprise IT services provider, established in 2005, has been offering innovative solutions underscoring client success, with unwavering commitment.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 2,714 contacts → | ||||
Exact match “Miracle Software Systems is a global IT services company that has been consistently delivering true value for businesses for the past 29 years.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 2,359 contacts → | ||||
Exact match “Beyondsoft Consulting is a leading global mid-sized business IT and consulting company that combines modern technologies and proven methodologies to tailor solutions that move…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 2,215 contacts → | ||||
Exact match “Astreya is the leading IT solutions provider for some of the world's most recognizable and innovative organizations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 1,950 contacts → | ||||
Exact match “IT Convergence is a global Oracle Platinum Partner with a comprehensive service offering across all three pillars of the Cloud (IaaS, PaaS, SaaS), including Consulting/Advisory…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 1,864 contacts → | ||||
Exact match “Founded in 2005, GyanSys is a leading global system integrator company supporting enterprise customers worldwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 1,664 contacts → | ||||
Exact match “Quadrant Technologies: Your Go-to IT Services Partner for a Digital Future For over a decade, Quadrant Technologies has established itself as a trailblazer in the IT services…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 1,398 contacts → | ||||
Exact match “Established in California in 1993, OSI Digital has grown into a truly global business and technology solutions provider, committed to helping organizations transform, perform and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 1,216 contacts → | ||||
Exact match “At Netlink, we combine human innovation with AI-driven intelligence to build technology solutions that yield immediate, measurable business results.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 1,102 contacts → | ||||
Exact match “Onix is a pioneer in cloud, data, and AI-driven transformation, delivering enterprise-grade innovation for more than two decades.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 1,096 contacts → | ||||
Exact match “AgreeYa Solutions is a leading global provider of software, solutions and services to small, medium and global Fortune 100 organizations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 1,046 contacts → | ||||
Exact match “PCM is a division of Insight | Together, we’ll help you navigate complex IT challenges.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 985 contacts → | ||||
Exact match “Miratech helps visionaries to change the world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 870 contacts → | ||||
Exact match “Idexcel is a Professional Services and Technology Solutions provider specializing in Cloud Services, Cloud Native Services, Data Platforms and Intelligence, Automation & AI.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 703 contacts → | ||||
Exact match “Cambridge Technology Enterprises Limited (CTEL)(NSE: CTE; BSE: 532801) is a global technology services company, recognized as a thought leader and innovator of enterprise…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 672 contacts → | ||||
Exact match “Symphony is a global design and development software company headquartered in San Francisco with 650+ technologists located across engineering offices in Southeast Europe and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 617 contacts → | ||||
Exact match “Denali Advanced Integration delivers Enterprise IT solutions and services globally.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 612 contacts → | ||||
Exact match “ProV is an award winning global technology consulting firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 574 contacts → | ||||
Exact match “Founded in 1993, ConvergeOne is a leading global IT services provider of collaboration and technology solutions for large and medium enterprises with decades of experience…” Recorded in the RevenueBase company graph · Sep 21, 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 “tier 1 IT 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 717 tier 1 IT companies based in the United States
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Tier 1 IT companies based in the United States at a glance
As of Sep 21, 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 717 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 “tier 1 IT 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 172,754 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 21, 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 “tier 1 IT companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many tier 1 IT companies are there based in the United States?
RevenueBase identified 717 company matches for tier 1 IT 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?
IBM tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most tier 1 IT companies?
New York leads with 32 company records, followed by Houston (19) and Miami (16).
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 172,754 professional contacts with verified work emails tracked across these 717 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 717 tier 1 IT companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Tier 1 IT companies by geography
- Tier 1 IT companies based in Ahmedabad, India
- Tier 1 IT companies based in Bangalore, India
- Tier 1 IT companies based in Chennai, India
- Tier 1 IT companies based in Hyderabad, India
- Tier 1 IT companies based in Mumbai, India
- Tier 1 IT companies based in New Delhi, India
- Tier 1 IT companies based in Noida, India
- Tier 1 IT companies based in Pune, India
- Tier 1 IT companies based in Australia
- Tier 1 IT companies based in Brazil
- Tier 1 IT companies based in Canada
- Tier 1 IT companies based in China
Browse the directory
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Tier 1 IT companies based in Ahmedabad, India
- Tier 1 IT companies based in Bangalore, India
- Tier 1 IT companies based in Chennai, India
- Tier 1 IT companies based in Hyderabad, India
- Tier 1 IT companies based in Mumbai, India
- Tier 1 IT companies based in New Delhi, India
Company intelligence · public preview
Top 25 tier 1 IT 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 717 matching company records for tier 1 IT companies based in the United States, with 783,066 tracked contacts and 172,754 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 21, 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 tier 1 IT 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 |  IBMibm.comHQ: Armonk, NY, United StatesReported employees: 10001+ | Armonk, NY, United States | 10001+ | Exact match | 327,607 contacts → |
“At IBM, we do more than work.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  DXC Technologydxc.comHQ: Ashburn, VA, United StatesReported employees: 10001+ | Ashburn, VA, United States | 10001+ | Exact match | 82,768 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Lenovolenovo.comHQ: Morrisville, NC, United StatesReported employees: 10001+ | Morrisville, NC, United States | 10001+ | Exact match | 35,232 contacts → |
“Lenovo is a US$83 billion revenue global technology powerhouse, ranked #196 in the Fortune Global 500, and serving millions of customers every day in 180 markets.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  NTT Data North Americanttdata.comHQ: Plano, TX, United StatesReported employees: 10001+ | Plano, TX, United States | 10001+ | Exact match | 22,390 contacts → |
“NTT DATA, Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Unisysunisys.comHQ: Blue Bell, PA, United StatesReported employees: 10001+ | Blue Bell, PA, United States | 10001+ | Exact match | 18,676 contacts → |
“Unisys is a global technology solutions company that powers breakthroughs for the world’s leading organizations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Apex Systemsapexsystems.comHQ: Glen Allen, VA, United StatesReported employees: 1,001-5,000 | Glen Allen, VA, United States | 1,001-5,000 | Exact match | 12,231 contacts → |
“Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Mouri Techmouritech.comHQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 3,051 contacts → |
“MOURI Tech - the global enterprise IT services provider, established in 2005, has been offering innovative solutions underscoring client success, with unwavering commitment.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Miracle Software Systems, INCmiraclesoft.comHQ: Novi, MI, United StatesReported employees: 1,001-5,000 | Novi, MI, United States | 1,001-5,000 | Exact match | 2,714 contacts → |
“Miracle Software Systems is a global IT services company that has been consistently delivering true value for businesses for the past 29 years.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Beyondsoftbeyondsoft.comHQ: Bellevue, WA, United StatesReported employees: 501-1,000 | Bellevue, WA, United States | 501-1,000 | Exact match | 2,359 contacts → |
“Beyondsoft Consulting is a leading global mid-sized business IT and consulting company that combines modern technologies and proven methodologies to tailor solutions that move…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Astreyaastreya.comHQ: San Jose, CA, United StatesReported employees: 1,001-5,000 | San Jose, CA, United States | 1,001-5,000 | Exact match | 2,215 contacts → |
“Astreya is the leading IT solutions provider for some of the world's most recognizable and innovative organizations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  IT Convergenceitconvergence.comHQ: Irving, IL, United StatesReported employees: 501-1,000 | Irving, IL, United States | 501-1,000 | Exact match | 1,950 contacts → |
“IT Convergence is a global Oracle Platinum Partner with a comprehensive service offering across all three pillars of the Cloud (IaaS, PaaS, SaaS), including Consulting/Advisory…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Gyansys INCgyansys.comHQ: Carmel, IN, United StatesReported employees: 1,001-5,000 | Carmel, IN, United States | 1,001-5,000 | Exact match | 1,864 contacts → |
“Founded in 2005, GyanSys is a leading global system integrator company supporting enterprise customers worldwide.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Quadrant Technologiesquadranttechnologies.comHQ: Redmond, WA, United StatesReported employees: 1,001-5,000 | Redmond, WA, United States | 1,001-5,000 | Exact match | 1,664 contacts → |
“Quadrant Technologies: Your Go-to IT Services Partner for a Digital Future For over a decade, Quadrant Technologies has established itself as a trailblazer in the IT services…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  OSI Digitalosidigital.comHQ: Calabasas, CA, United StatesReported employees: 1,001-5,000 | Calabasas, CA, United States | 1,001-5,000 | Exact match | 1,398 contacts → |
“Established in California in 1993, OSI Digital has grown into a truly global business and technology solutions provider, committed to helping organizations transform, perform and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Netlink Software Group America INCnetlink.comHQ: Madison Heights, MI, United StatesReported employees: 1,001-5,000 | Madison Heights, MI, United States | 1,001-5,000 | Exact match | 1,216 contacts → |
“At Netlink, we combine human innovation with AI-driven intelligence to build technology solutions that yield immediate, measurable business results.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  ONIXonixnet.comHQ: Princeton, NJ, United StatesReported employees: 1,001-5,000 | Princeton, NJ, United States | 1,001-5,000 | Exact match | 1,102 contacts → |
“Onix is a pioneer in cloud, data, and AI-driven transformation, delivering enterprise-grade innovation for more than two decades.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Agreeya Solutionsagreeya.comHQ: Folsom, CA, United StatesReported employees: 1,001-5,000 | Folsom, CA, United States | 1,001-5,000 | Exact match | 1,096 contacts → |
“AgreeYa Solutions is a leading global provider of software, solutions and services to small, medium and global Fortune 100 organizations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: El Segundo, CA, United StatesReported employees: 1,001-5,000 | El Segundo, CA, United States | 1,001-5,000 | Exact match | 1,046 contacts → |
“PCM is a division of Insight | Together, we’ll help you navigate complex IT challenges.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Miratechmiratechgroup.comHQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 985 contacts → |
“Miratech helps visionaries to change the world.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Idexcelidexcel.comHQ: Herndon, VA, United StatesReported employees: 501-1,000 | Herndon, VA, United States | 501-1,000 | Exact match | 870 contacts → |
“Idexcel is a Professional Services and Technology Solutions provider specializing in Cloud Services, Cloud Native Services, Data Platforms and Intelligence, Automation & AI.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 703 contacts → |
“Cambridge Technology Enterprises Limited (CTEL)(NSE: CTE; BSE: 532801) is a global technology services company, recognized as a thought leader and innovator of enterprise…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  symphony.issymphony.isHQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 672 contacts → |
“Symphony is a global design and development software company headquartered in San Francisco with 650+ technologists located across engineering offices in Southeast Europe and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Denali Advanced Integrationdenaliai.comHQ: Redmond, WA, United StatesReported employees: 501-1,000 | Redmond, WA, United States | 501-1,000 | Exact match | 617 contacts → |
“Denali Advanced Integration delivers Enterprise IT solutions and services globally.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Prov Internationalprovintl.comHQ: Tampa, FL, United StatesReported employees: 501-1,000 | Tampa, FL, United States | 501-1,000 | Exact match | 612 contacts → |
“ProV is an award winning global technology consulting firm.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  AOSconvergeone.comHQ: Eagan, MN, United StatesReported employees: 1,001-5,000 | Eagan, MN, United States | 1,001-5,000 | Exact match | 574 contacts → |
“Founded in 1993, ConvergeOne is a leading global IT services provider of collaboration and technology solutions for large and medium enterprises with decades of experience…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 717 company matches
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Tier 1 IT companies: dataset insights
September 21, 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
717 records in the displayed employee bands.
0 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 717 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 21, 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 tier 1 IT 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 tier 1 IT companies did RevenueBase find based in the United States?
The saved snapshot records 717 matching company records, 783,066 tracked contacts and 172,754 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 21, 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
Tier 1 IT companies by geography
- Tier 1 IT companies based in Ahmedabad, India
- Tier 1 IT companies based in Bangalore, India
- Tier 1 IT companies based in Chennai, India
- Tier 1 IT companies based in Hyderabad, India
- Tier 1 IT companies based in Mumbai, India
- Tier 1 IT companies based in New Delhi, India
- Tier 1 IT companies based in Noida, India
- Tier 1 IT companies based in Pune, India
- Tier 1 IT companies based in Australia
- Tier 1 IT companies based in Brazil
- Tier 1 IT companies based in Canada
- Tier 1 IT companies based in China
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 tier 1 IT companies based in the United States. Snapshot: September 21, 2026. https://revenuebase.ai/companies/tier-1-it-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
- Tier 1 IT companies based in Ahmedabad, India
- Tier 1 IT companies based in Bangalore, India
- Tier 1 IT companies based in Chennai, India
- Tier 1 IT companies based in Hyderabad, India
- Tier 1 IT companies based in Mumbai, India
- Tier 1 IT companies based in New Delhi, India
Company intelligence · public preview
Top 25 tier 1 IT companies based in the United States
RevenueBase records 717 matching company records for tier 1 IT companies based in the United States, with 783,066 tracked contacts and 172,754 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 21, 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 tier 1 IT 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 | IBMibm.com HQ: Armonk, NY, United StatesReported employees: 10001+ | Armonk, NY, United States | 10001+ | Exact match | 327,607 contacts → |
“At IBM, we do more than work.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | DXC Technologydxc.com HQ: Ashburn, VA, United StatesReported employees: 10001+ | Ashburn, VA, United States | 10001+ | Exact match | 82,768 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Lenovolenovo.com HQ: Morrisville, NC, United StatesReported employees: 10001+ | Morrisville, NC, United States | 10001+ | Exact match | 35,232 contacts → |
“Lenovo is a US$83 billion revenue global technology powerhouse, ranked #196 in the Fortune Global 500, and serving millions of customers every day in 180 markets.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | NTT Data North Americanttdata.com HQ: Plano, TX, United StatesReported employees: 10001+ | Plano, TX, United States | 10001+ | Exact match | 22,390 contacts → |
“NTT DATA, Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Unisysunisys.com HQ: Blue Bell, PA, United StatesReported employees: 10001+ | Blue Bell, PA, United States | 10001+ | Exact match | 18,676 contacts → |
“Unisys is a global technology solutions company that powers breakthroughs for the world’s leading organizations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Apex Systemsapexsystems.com HQ: Glen Allen, VA, United StatesReported employees: 1,001-5,000 | Glen Allen, VA, United States | 1,001-5,000 | Exact match | 12,231 contacts → |
“Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Mouri Techmouritech.com HQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 3,051 contacts → |
“MOURI Tech - the global enterprise IT services provider, established in 2005, has been offering innovative solutions underscoring client success, with unwavering commitment.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Miracle Software Systems, INCmiraclesoft.com HQ: Novi, MI, United StatesReported employees: 1,001-5,000 | Novi, MI, United States | 1,001-5,000 | Exact match | 2,714 contacts → |
“Miracle Software Systems is a global IT services company that has been consistently delivering true value for businesses for the past 29 years.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Beyondsoftbeyondsoft.com HQ: Bellevue, WA, United StatesReported employees: 501-1,000 | Bellevue, WA, United States | 501-1,000 | Exact match | 2,359 contacts → |
“Beyondsoft Consulting is a leading global mid-sized business IT and consulting company that combines modern technologies and proven methodologies to tailor solutions that move…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Astreyaastreya.com HQ: San Jose, CA, United StatesReported employees: 1,001-5,000 | San Jose, CA, United States | 1,001-5,000 | Exact match | 2,215 contacts → |
“Astreya is the leading IT solutions provider for some of the world's most recognizable and innovative organizations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | IT Convergenceitconvergence.com HQ: Irving, IL, United StatesReported employees: 501-1,000 | Irving, IL, United States | 501-1,000 | Exact match | 1,950 contacts → |
“IT Convergence is a global Oracle Platinum Partner with a comprehensive service offering across all three pillars of the Cloud (IaaS, PaaS, SaaS), including Consulting/Advisory…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Gyansys INCgyansys.com HQ: Carmel, IN, United StatesReported employees: 1,001-5,000 | Carmel, IN, United States | 1,001-5,000 | Exact match | 1,864 contacts → |
“Founded in 2005, GyanSys is a leading global system integrator company supporting enterprise customers worldwide.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Quadrant Technologiesquadranttechnologies.com HQ: Redmond, WA, United StatesReported employees: 1,001-5,000 | Redmond, WA, United States | 1,001-5,000 | Exact match | 1,664 contacts → |
“Quadrant Technologies: Your Go-to IT Services Partner for a Digital Future For over a decade, Quadrant Technologies has established itself as a trailblazer in the IT services…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | OSI Digitalosidigital.com HQ: Calabasas, CA, United StatesReported employees: 1,001-5,000 | Calabasas, CA, United States | 1,001-5,000 | Exact match | 1,398 contacts → |
“Established in California in 1993, OSI Digital has grown into a truly global business and technology solutions provider, committed to helping organizations transform, perform and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Netlink Software Group America INCnetlink.com HQ: Madison Heights, MI, United StatesReported employees: 1,001-5,000 | Madison Heights, MI, United States | 1,001-5,000 | Exact match | 1,216 contacts → |
“At Netlink, we combine human innovation with AI-driven intelligence to build technology solutions that yield immediate, measurable business results.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | ONIXonixnet.com HQ: Princeton, NJ, United StatesReported employees: 1,001-5,000 | Princeton, NJ, United States | 1,001-5,000 | Exact match | 1,102 contacts → |
“Onix is a pioneer in cloud, data, and AI-driven transformation, delivering enterprise-grade innovation for more than two decades.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Agreeya Solutionsagreeya.com HQ: Folsom, CA, United StatesReported employees: 1,001-5,000 | Folsom, CA, United States | 1,001-5,000 | Exact match | 1,096 contacts → |
“AgreeYa Solutions is a leading global provider of software, solutions and services to small, medium and global Fortune 100 organizations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: El Segundo, CA, United StatesReported employees: 1,001-5,000 | El Segundo, CA, United States | 1,001-5,000 | Exact match | 1,046 contacts → |
“PCM is a division of Insight | Together, we’ll help you navigate complex IT challenges.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Miratechmiratechgroup.com HQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 985 contacts → |
“Miratech helps visionaries to change the world.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Idexcelidexcel.com HQ: Herndon, VA, United StatesReported employees: 501-1,000 | Herndon, VA, United States | 501-1,000 | Exact match | 870 contacts → |
“Idexcel is a Professional Services and Technology Solutions provider specializing in Cloud Services, Cloud Native Services, Data Platforms and Intelligence, Automation & AI.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 703 contacts → |
“Cambridge Technology Enterprises Limited (CTEL)(NSE: CTE; BSE: 532801) is a global technology services company, recognized as a thought leader and innovator of enterprise…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | symphony.issymphony.is HQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 672 contacts → |
“Symphony is a global design and development software company headquartered in San Francisco with 650+ technologists located across engineering offices in Southeast Europe and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Denali Advanced Integrationdenaliai.com HQ: Redmond, WA, United StatesReported employees: 501-1,000 | Redmond, WA, United States | 501-1,000 | Exact match | 617 contacts → |
“Denali Advanced Integration delivers Enterprise IT solutions and services globally.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Prov Internationalprovintl.com HQ: Tampa, FL, United StatesReported employees: 501-1,000 | Tampa, FL, United States | 501-1,000 | Exact match | 612 contacts → |
“ProV is an award winning global technology consulting firm.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | AOSconvergeone.com HQ: Eagan, MN, United StatesReported employees: 1,001-5,000 | Eagan, MN, United States | 1,001-5,000 | Exact match | 574 contacts → |
“Founded in 1993, ConvergeOne is a leading global IT services provider of collaboration and technology solutions for large and medium enterprises with decades of experience…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Tier 1 IT companies: dataset insights
September 21, 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
717 records in the displayed employee bands.
0 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 717 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 21, 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 tier 1 IT 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 tier 1 IT companies did RevenueBase find based in the United States?
The saved snapshot records 717 matching company records, 783,066 tracked contacts and 172,754 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 21, 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 25 tier 1 IT companies based in the United States. Snapshot: September 21, 2026. https://revenuebase.ai/companies/tier-1-it-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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