Company lists · Data refreshed September 2026

Top 25 IT infrastructure companies based in the United States

Name: IT infrastructure companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 5,168 companies tracked

RevenueBase identified 5,168 IT infrastructure companies headquartered in the United States as of September 2026 and tracks 247,063 professional contacts across them, including 85,059 with verified work emails. New York is the largest hub.

This list covers IT infrastructure companies headquartered in the 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 20, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

5,168Companies

247,063Contacts tracked

85,059Verified emails

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The 25 largest IT infrastructure companies based in the United States

Ranked by team size

Top 25 of 5,168 IT infrastructure companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to IT infrastructure companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	DXC Technology	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 20, 2026	10001+	82,768 contacts →
	Partial evidence “DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Source: RevenueBase Database · checked Sep 20, 2026
2	Kyndryl	Partial evidence	New York City, NY, United StatesHQ checked Sep 20, 2026	10001+	45,903 contacts →
	Partial evidence “We have the world’s best talent that design, run, and manage the most advanced and reliable technology infrastructure each day.” Source: RevenueBase Database · checked Sep 20, 2026
3	Equinix	Partial evidence	Redwood City, CA, United StatesHQ checked Sep 20, 2026	10001+	13,641 contacts →
	Partial evidence “Equinix (Nasdaq: EQIX) is the world’s digital infrastructure company®, enabling digital leaders to harness a trusted platform to bring together and interconnect the foundational…” Source: RevenueBase Database · checked Sep 20, 2026
4	Apex Systems	Indirect evidence	Glen Allen, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	12,231 contacts →
	Indirect evidence “Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…” Source: RevenueBase Database · checked Sep 20, 2026
5	Black BOX	Partial evidence	Plano, TX, United StatesHQ checked Sep 20, 2026	1,001-5,000	3,667 contacts →
	Partial evidence “Black Box is a global leader in digital infrastructure solutions, delivering network and system integration, managed services, and technology products to Fortune 100 and top…” Source: RevenueBase Database · checked Sep 20, 2026
6	Visionet Systems INC	Indirect evidence	Cranbury, NJ, United StatesHQ checked Sep 20, 2026	10001+	3,119 contacts →
	Indirect evidence “Visionet is a premier digital technology solutions company built on the premise of disruptive innovation.” Source: RevenueBase Database · checked Sep 20, 2026
7	Park Place Technologies	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,250 contacts →
	Partial evidence “Park Place Technologies is the global leader in data center and networking optimization, we work with more than companies across the globe, boosting infrastructure performance…” Source: RevenueBase Database · checked Sep 20, 2026
8	IT Convergence	Partial evidence	Irving, IL, United StatesHQ checked Sep 20, 2026	501-1,000	1,950 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
9	GURU	Strong evidence	Rockville, MD, United StatesHQ checked Sep 20, 2026	n/a	1,906 contacts →
	Strong evidence “Established in 1995, GURU is an IT managed service provider that specializes in infrastructure support, systems integration, data architecture, data hosting, and cloud services.” Source: RevenueBase Database · checked Sep 20, 2026
10	IES Communications	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,800 contacts →
	Indirect evidence “IES Communications a division of IES (NASDAQ: IESC) provides each client with a team of highly qualified dedicated professionals that deliver superior quality and cost effective…” Source: RevenueBase Database · checked Sep 20, 2026
11	Eplus INC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,749 contacts →
	Partial evidence “ePlus is a customer-first, services-led, results-driven and trusted industry leader that helps organizations secure, modernize, optimize, and scale every aspect of their IT…” Source: RevenueBase Database · checked Sep 20, 2026
12	Wachter, INC	Partial evidence	Lenexa, KS, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,237 contacts →
	Partial evidence “Wachter is on the cutting-edge of technology and infrastructure installation and has been since 1930.” Source: RevenueBase Database · checked Sep 20, 2026
13	Solugenix	Partial evidence	Brea, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,063 contacts →
	Partial evidence “Technology only matters when it helps the business run better.” Source: RevenueBase Database · checked Sep 20, 2026
14	PCM The Right Technology, Delivered	Partial evidence	El Segundo, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,046 contacts →
	Partial evidence “PCM is a division of Insight \| Together, we’ll help you navigate complex IT challenges.” Source: RevenueBase Database · checked Sep 20, 2026
15	Stack Infrastructure	Partial evidence	Denver, CO, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,036 contacts →
	Partial evidence “STACK provides digital infrastructure to scale the world’s most innovative companies.” Source: RevenueBase Database · checked Sep 20, 2026
16	Service Express	Partial evidence	Grand Rapids, MI, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,015 contacts →
	Partial evidence “Service Express, a Park Place Technologies Company, is a leading data center solutions provider specializing in multivendor maintenance, managed infrastructure and hardware…” Source: RevenueBase Database · checked Sep 20, 2026
17	11 11 Systems	Partial evidence	Fairfield, NJ, United StatesHQ checked Sep 20, 2026	1,001-5,000	822 contacts →
	Partial evidence “11:11 Systems is a managed infrastructure solutions provider that empowers customers to modernize, protect, and manage mission-critical applications and data, leveraging 11:11’s…” Source: RevenueBase Database · checked Sep 20, 2026
18	Buchanan Technologies	Partial evidence	Grapevine, TX, United StatesHQ checked Sep 20, 2026	501-1,000	818 contacts →
	Partial evidence “As a leading IT consulting and outsourcing services firm, Buchanan Technologies helps organizations across North America turn their business technology into a powerful competitive…” Source: RevenueBase Database · checked Sep 20, 2026
19	SUN Technologies	Indirect evidence	Atlanta, United StatesHQ checked Sep 20, 2026	1,001-5,000	763 contacts →
	Indirect evidence “Established in 1996, Sun Technologies Inc.” Source: RevenueBase Database · checked Sep 20, 2026
20	Apptix	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	n/a	762 contacts →
	Indirect evidence “Apptix was acquired by Fusion Connect in 2016.” Source: RevenueBase Database · checked Sep 20, 2026
21	System Soft Technologies	Partial evidence	Tampa, FL, United StatesHQ checked Sep 20, 2026	501-1,000	732 contacts →
	Partial evidence “System Soft Group is an IT services and solutions company that helps organizations overcome limited managed IT capabilities and achieve key technology goals.” Source: RevenueBase Database · checked Sep 20, 2026
22	Worldwide Techservices	Indirect evidence	Tewksbury, MA, United StatesHQ checked Sep 20, 2026	1,001-5,000	717 contacts →
	Indirect evidence “Our worldwide team of over technicians service more than 3 million desktops, laptops, printers, servers, networks, satellites and LCDs each year in more than 50 countries.” Source: RevenueBase Database · checked Sep 20, 2026
23	Cambridge Technology Enterprises Limited	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	201-500	703 contacts →
	Indirect evidence “Cambridge Technology Enterprises Limited (CTEL)(NSE: CTE; BSE: 532801) is a global technology services company, recognized as a thought leader and innovator of enterprise…” Source: RevenueBase Database · checked Sep 20, 2026
24	Iron Systems, INC	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	632 contacts →
	Indirect evidence “IRON Systems is a leading provider of integrated information technology solutions and last-mile supply chain services to the global Data Center, Edge Computing, Telecom and IoT…” Source: RevenueBase Database · checked Sep 20, 2026
25	Cbeyond	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	1,001-5,000	555 contacts →
	Indirect evidence “Cbeyond, Inc.” Source: RevenueBase Database · checked Sep 20, 2026

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 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 companies.
Partial evidence: Its own public description names part of IT infrastructure 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 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 5,168 IT infrastructure companies based in the United States

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IT infrastructure companies based in the United States at a glance

As of Sep 20, 2026

34.4%Verified-email coverage

47.8Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

2,770

11-50

1,737

51-200

456

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 5,168 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 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 the United States whose own description of what they do matches “IT infrastructure 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 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 companies, and records with no verified work email. Companies headquartered outside United States 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, 85,059 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 20, 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 companies by metro

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 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 companies are there based in the United States?

RevenueBase identified 5,168 IT infrastructure companies headquartered in the 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?

DXC Technology, headquartered in Ashburn, tops this list with the largest team on record.

Which city has the most IT infrastructure companies?

New York leads with 140 headquartered companies, followed by Houston (126) and Miami (80).

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 85,059 verified decision-maker contacts tracked across these 5,168 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 20, 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.