Company lists · Data refreshed September 2026
Top 25 IT infrastructure and security companies based in New York, United States
RevenueBase identified 457 IT infrastructure and security companies headquartered in New York, United States as of September 2026 and tracks 13,536 professional contacts across them, including 5,449 with verified work emails. New York is the largest hub.
This list covers IT infrastructure and security companies headquartered in New York, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest IT infrastructure and security companies based in New York, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,798 contacts → | ||||
Indirect evidence “At Presidio, speed and quality meet technology and innovation.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 797 contacts → | ||||
Indirect evidence “Founded in 1997, with headquarters on Wall Street, New York, Amtex operates across four continents, delivering digital solutions and technical expertise in software, BI, mobile…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 530 contacts → | ||||
Indirect evidence “Lumenalta partners with companies and organizations to accelerate business performance through technology.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 478 contacts → | ||||
Strong evidence “XTIUM, created through the business combination of ATSG and Evolve IP, delivers a modern security-first approach to the managed IT services experience.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 401 contacts → | ||||
Indirect evidence “The first AI-native technology partner for finance.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 395 contacts → | ||||
Strong evidence “Align is a leading global provider of technology infrastructure solutions, managed IT services and data center deployment.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 326 contacts → | ||||
Indirect evidence “Ranosys is a global digital consulting company helping enterprises accelerate growth through AI, Digital Commerce, Digital Transformation, and Product Engineering.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 286 contacts → | ||||
Indirect evidence “Technology holds infinite potential for your business.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 281 contacts → | ||||
Indirect evidence “Atlas Technica was founded in 2016 with two main goals: to provide the best customer service experience possible for our clients, and to use best-in-class public cloud technology…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 233 contacts → | ||||
Indirect evidence “Lloyd is not your typical MSP; we’re a group of tech-savvy enthusiasts who build long-lasting relationships on a first-name basis.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 219 contacts → | ||||
Indirect evidence “Kraft Kennedy is a multidisciplinary technology and management consulting firm.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 217 contacts → | ||||
Partial evidence “ATSG is a global technology leader specializing in cloud, IT managed services, managed network services, cybersecurity, desktop-as-a-service, unified communications, and contact…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 200 contacts → | ||||
Partial evidence “Agio is a hybrid cybersecurity and managed IT organization that combines predictive intelligence with human brilliance to empower clients with next-generation cyber protection and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 163 contacts → | ||||
Partial evidence “Harbor IT helps organizations secure, operate, and scale through integrated IT, cybersecurity, AI, and cloud services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 151 contacts → | ||||
Indirect evidence “Hi!” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 144 contacts → | ||||
Partial evidence “Azeemi Technologies is leading global AI & IT Consulting company, established in 2003, providing end-to-end IT Services & Solutions in North America, Middle East, Africa and Asia.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 94 contacts → | ||||
Indirect evidence “Pro4ia® isn’t built to be everywhere.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 91 contacts → | ||||
Indirect evidence “30th Anniversary | EXPERTISE MATTERS Maureen Data Systems (MDS) is recognized as a leading solutions and professional services partner for world-class technology companies that…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 84 contacts → | ||||
Indirect evidence “Derive Technologies was founded in through the combination of two long-standing technology firms dating back to 1986-incorporated as “Derive Technologies” in 2001.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 81 contacts → | ||||
Indirect evidence “Fivesky provides advanced technologies to unleash an organization's ability to achieve their highest goals.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 81 contacts → | ||||
Strong evidence “For a decade, Alphaserve has provided infrastructure technology services, digital IT services and application development to firms in the professional services and financial…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 80 contacts → | ||||
Indirect evidence “Cyber City inc.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 77 contacts → | ||||
Indirect evidence “Our Talent and Hardwork intertwine to ensure your Success”.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 76 contacts → | ||||
Indirect evidence “NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 69 contacts → | ||||
Indirect evidence “We are a dedicated and skillful software development and managed cloud services team, specializing in creating, innovating, launching, and managing transformative technology…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT infrastructure and security companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names IT infrastructure and security companies.
- Partial evidence
- Its own public description names part of IT infrastructure and security companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT infrastructure and security companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 457 IT infrastructure and security companies based in New York, United States
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IT infrastructure and security companies based in New York, United States at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 457 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among IT infrastructure and security companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in New York, United States whose own description of what they do matches “IT infrastructure and security companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names IT infrastructure and security companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among IT infrastructure and security companies, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 5,449 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 27, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
IT infrastructure and security companies by metro in the United States
- IT infrastructure and security companies in New York457
- IT infrastructure and security companies in Houston320
- IT infrastructure and security companies in Dallas216
- IT infrastructure and security companies in Atlanta214
- IT infrastructure and security companies in Austin208
- IT infrastructure and security companies in Chicago207
- IT infrastructure and security companies in Miami194
- IT infrastructure and security companies in Los Angeles161
- IT infrastructure and security companies in San Diego133
- IT infrastructure and security companies in Washington133
- IT infrastructure and security companies in San Francisco130
- IT infrastructure and security companies in Tampa130
- IT infrastructure and security companies in Denver114
- IT infrastructure and security companies in Charlotte113
- IT infrastructure and security companies in Orlando102
- IT infrastructure and security companies in Phoenix98
- IT infrastructure and security companies in Irvine97
- IT infrastructure and security companies in San Jose96
- IT infrastructure and security companies in San Antonio94
- IT infrastructure and security companies in Las Vegas93
- IT infrastructure and security companies in Plano86
- IT infrastructure and security companies in Arlington85
- IT infrastructure and security companies in Columbia82
- IT infrastructure and security companies in Seattle79
- IT infrastructure and security companies in Boston74
- IT infrastructure and security companies in Frisco73
- IT infrastructure and security companies in Sheridan73
- IT infrastructure and security companies in Indianapolis69
- IT infrastructure and security companies in Wilmington69
- IT infrastructure and security companies in Herndon68
- IT infrastructure and security companies in Irving68
- IT infrastructure and security companies in Fort Lauderdale63
- IT infrastructure and security companies in Richmond63
- IT infrastructure and security companies in Reston62
- IT infrastructure and security companies in Ashburn61
- IT infrastructure and security companies in Columbus61
- IT infrastructure and security companies in Fairfax61
- IT infrastructure and security companies in Raleigh61
- IT infrastructure and security companies in Portland60
- IT infrastructure and security companies in Alpharetta56
- IT infrastructure and security companies in Mclean56
- IT infrastructure and security companies in Alexandria55
- IT infrastructure and security companies in Minneapolis55
- IT infrastructure and security companies in Cincinnati53
- IT infrastructure and security companies in Baltimore50
- IT infrastructure and security companies in Nashville48
- IT infrastructure and security companies in Scottsdale48
- IT infrastructure and security companies in Jacksonville47
- IT infrastructure and security companies in Newark46
- IT infrastructure and security companies in Pittsburgh46
- IT infrastructure and security companies in Rockville45
- IT infrastructure and security companies in Sacramento45
- IT infrastructure and security companies in Boca Raton43
- IT infrastructure and security companies in Louisville43
- IT infrastructure and security companies in Salt Lake City41
- IT infrastructure and security companies in Dover40
- IT infrastructure and security companies in Santa Clara39
- IT infrastructure and security companies in Springfield39
- IT infrastructure and security companies in Greenville38
- IT infrastructure and security companies in Philadelphia38
- IT infrastructure and security companies in Princeton38
- IT infrastructure and security companies in Troy38
- IT infrastructure and security companies in Kansas City36
- IT infrastructure and security companies in Leesburg36
- IT infrastructure and security companies in Albuquerque35
- IT infrastructure and security companies in Naperville35
- IT infrastructure and security companies in Schaumburg35
- IT infrastructure and security companies in Birmingham34
- IT infrastructure and security companies in Knoxville34
- IT infrastructure and security companies in Oklahoma City34
- IT infrastructure and security companies in Colorado Springs33
- IT infrastructure and security companies in Fort Worth33
- IT infrastructure and security companies in Omaha33
- IT infrastructure and security companies in Baton Rouge32
- IT infrastructure and security companies in St Louis32
- IT infrastructure and security companies in Tucson32
- IT infrastructure and security companies in Chantilly31
- IT infrastructure and security companies in Rochester30
- IT infrastructure and security companies in Vienna30
- IT infrastructure and security companies in Cleveland29
- IT infrastructure and security companies in Grand Rapids29
- IT infrastructure and security companies in West Palm Beach29
- IT infrastructure and security companies in Bellevue28
- IT infrastructure and security companies in Huntsville28
- IT infrastructure and security companies in Mckinney28
- IT infrastructure and security companies in Manassas27
- IT infrastructure and security companies in Pleasanton27
- IT infrastructure and security companies in Sterling27
- IT infrastructure and security companies in Fremont26
- IT infrastructure and security companies in Gaithersburg26
- IT infrastructure and security companies in Reno26
- IT infrastructure and security companies in Tulsa26
- IT infrastructure and security companies in Duluth25
- IT infrastructure and security companies in Marietta25
- IT infrastructure and security companies in Overland Park25
- IT infrastructure and security companies in Richardson25
- IT infrastructure and security companies in Sarasota25
- IT infrastructure and security companies in Virginia Beach25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names IT infrastructure and security companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many IT infrastructure and security companies are there based in New York, United States?
RevenueBase identified 457 IT infrastructure and security companies headquartered in New York, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Presidio, headquartered in New York, tops this list with the largest team on record.
Which city has the most IT infrastructure and security companies?
New York leads with 457 headquartered companies, followed by Houston (320) and Dallas (216).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 5,449 verified decision-maker contacts tracked across these 457 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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