Company lists · Data refreshed September 2026

Top 25 IT support companies based in the United States

Name: IT support 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 9,663 companies tracked

RevenueBase identified 9,663 IT support companies headquartered in the United States as of September 2026 and tracks 85,830 professional contacts across them, including 31,358 with verified work emails. New York is the largest hub.

This list covers IT support 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

9,663Companies

85,830Contacts tracked

31,358Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest IT support companies based in the United States

Ranked by team size

Top 25 of 9,663 IT support 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 support 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	Marco Technologies	Indirect evidence	St. Cloud, MN, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,203 contacts →
	Indirect evidence “At Marco, we're all about making technology work for you (and not the other way around).” Source: RevenueBase Database · checked Sep 20, 2026
2	CCB Technology	Strong evidence	Racine, WI, United StatesHQ checked Sep 20, 2026	n/a	1,018 contacts →
	Strong evidence “CCB Technology provides award-winning IT support and project services to customers nationwide.” Source: RevenueBase Database · checked Sep 20, 2026
3	TPX	Indirect evidence	Austin, TX, United StatesHQ checked Sep 20, 2026	1,001-5,000	751 contacts →
	Indirect evidence “TPx is the reliable sidekick every growing business deserves, powering your tech while you take the lead.” Source: RevenueBase Database · checked Sep 20, 2026
4	IT Solutions	Indirect evidence	Fort Washington, PA, United StatesHQ checked Sep 20, 2026	501-1,000	683 contacts →
	Indirect evidence “With 30 years of experience as a trusted managed services provider, we're your dedicated partner in navigating the complex world of technology, so you can focus on growing your…” Source: RevenueBase Database · checked Sep 20, 2026
5	Visual Edge IT	Indirect evidence	North Canton, OH, United StatesHQ checked Sep 20, 2026	1,001-5,000	655 contacts →
	Indirect evidence “ABOUT VISUAL EDGE, INC.” Source: RevenueBase Database · checked Sep 20, 2026
6	Decisionone	Partial evidence	Havertown, PA, United StatesHQ checked Sep 20, 2026	501-1,000	623 contacts →
	Partial evidence “DecisionOne is the largest global independent technology support organization in the TPM and ISO markets.” Source: RevenueBase Database · checked Sep 20, 2026
7	Ntiva, INC	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 20, 2026	501-1,000	505 contacts →
	Indirect evidence “At Ntiva, growing people (our employees, partners, and clients) is our mission.” Source: RevenueBase Database · checked Sep 20, 2026
8	Vc3	Partial evidence	Columbia, SC, United StatesHQ checked Sep 20, 2026	501-1,000	495 contacts →
	Partial evidence “VC3 is a managed IT and cybersecurity services provider serving organizations throughout the US and Canada.” Source: RevenueBase Database · checked Sep 20, 2026
9	Meriplex	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	501-1,000	450 contacts →
	Indirect evidence “If you’re a midsize enterprise with employees (i.e, an “MSE” according to Gartner), we know what you’re going through.” Source: RevenueBase Database · checked Sep 20, 2026
10	Cmit Solutions	Strong evidence	Austin, TX, United StatesHQ checked Sep 20, 2026	501-1,000	439 contacts →
	Strong evidence “CMIT Solutions is a premier IT solution company dedicated to delivering enterprise-class IT support to businesses across North America.” Source: RevenueBase Database · checked Sep 20, 2026
11	CCS	Indirect evidence	Hauppauge, NY, United StatesHQ checked Sep 20, 2026	201-500	417 contacts →
	Indirect evidence “CCS is a premier provider of technology solutions and services to organizations throughout the US.” Source: RevenueBase Database · checked Sep 20, 2026
12	Computer Solutions	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 20, 2026	51-200	389 contacts →
	Partial evidence “Computer Solutions: Trusted Managed IT Services and Cybersecurity Partner in San Antonio, Texas For more than 46 years, Computer Solutions has helped businesses, schools…” Source: RevenueBase Database · checked Sep 20, 2026
13	PCS	Indirect evidence	Moorestown, NJ, United StatesHQ checked Sep 20, 2026	201-500	336 contacts →
	Indirect evidence “Teamwork.” Source: RevenueBase Database · checked Sep 20, 2026
14	GDC IT Solutions GDC	Strong evidence	Chambersburg, PA, United StatesHQ checked Sep 20, 2026	201-500	327 contacts →
	Strong evidence “GDC IT Solutions \| Premier IT Services & Technology Partner Global Data Consultants, LLC (dba GDC IT Solutions) is a veteran-owned, full-service IT provider supporting small…” Source: RevenueBase Database · checked Sep 20, 2026
15	Intelligent Technical Solutions	Strong evidence	Las Vegas, NV, United StatesHQ checked Sep 20, 2026	201-500	317 contacts →
	Strong evidence “Intelligent Technical Solutions is your trusted business partner for all your Cybersecurity, Managed and Co-managed IT support, Risk & Compliance, Data Analytics, and Consulting…” Source: RevenueBase Database · checked Sep 20, 2026
16	Amsys Innovative Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	201-500	302 contacts →
	Partial evidence “AMSYS is a nationwide IT Services Provider headquartered in Houston, TX.” Source: RevenueBase Database · checked Sep 20, 2026
17	Protech Services Group, INC	Partial evidence	Memphis, TN, United StatesHQ checked Sep 20, 2026	51-200	296 contacts →
	Partial evidence “We know that CIOs, CISOs, CTOs, and IT Directors wear a lot of hats-navigating security threats, modernizing infrastructure, managing internal expectations, all while still…” Source: RevenueBase Database · checked Sep 20, 2026
18	Centre Technologies	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	201-500	286 contacts →
	Partial evidence “Centre is a modern IT and cybersecurity partner delivering Managed IT, Business Intelligence, Cybersecurity, and Cloud services.” Source: RevenueBase Database · checked Sep 20, 2026
19	Atlas Technica	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	201-500	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 20, 2026
20	Corporate Technologies LLC	Partial evidence	Eden Prairie, MN, United StatesHQ checked Sep 20, 2026	201-500	274 contacts →
	Partial evidence “Corporate Technologies is a leading provider of managed IT solutions to small businesses and organizations in Minnesota, North Dakota, California, Michigan, New Mexico, Arkansas…” Source: RevenueBase Database · checked Sep 20, 2026
21	Networking Technologies And Support, INC	Strong evidence	Midlothian, VA, United StatesHQ checked Sep 20, 2026	51-200	272 contacts →
	Strong evidence “Networking Technologies + Support (NTS) is a trusted IT solutions provider headquartered in Midlothian, Virginia.” Source: RevenueBase Database · checked Sep 20, 2026
22	Compassmsp	Strong evidence	West Hartford, CT, United StatesHQ checked Sep 20, 2026	201-500	244 contacts →
	Strong evidence “Compass is a right-sized technology partner for growing businesses that want strong IT, advanced security, and reliable support in one place.” Source: RevenueBase Database · checked Sep 20, 2026
23	Magna5	Strong evidence	Canonsburg, PA, United StatesHQ checked Sep 20, 2026	201-500	238 contacts →
	Strong evidence “Magna5 is a national managed IT and cybersecurity services provider supporting organizations that require always‑on availability, strong security, and regulatory compliance.” Source: RevenueBase Database · checked Sep 20, 2026
24	Executech	Partial evidence	South Jordan, UT, United StatesHQ checked Sep 20, 2026	51-200	223 contacts →
	Partial evidence “Executech is a strategic IT partner built on a true vCIO mindset.” Source: RevenueBase Database · checked Sep 20, 2026
25	Secur-Serv	Partial evidence	Omaha, NE, United StatesHQ checked Sep 20, 2026	1,001-5,000	217 contacts →
	Partial evidence “Businesses want technology that works, security that holds up, and support that does not create more complexity.” 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 support 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 support companies.
Partial evidence: Its own public description names part of IT support companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT support 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 9,663 IT support companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 31,358 reachable decision-makers.

Free signup · no credit card

View the full list →

IT support companies based in the United States at a glance

As of Sep 20, 2026

36.5%Verified-email coverage

8.9Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

6,413

11-50

2,688

51-200

432

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 9,663 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 support 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 support 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 support 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 support 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, 31,358 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 support 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 support 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 support companies are there based in the United States?

RevenueBase identified 9,663 IT support 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?

Marco Technologies, headquartered in St. Cloud, tops this list with the largest team on record.

Which city has the most IT support companies?

New York leads with 243 headquartered companies, followed by Houston (149) and Miami (102).

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 31,358 verified decision-maker contacts tracked across these 9,663 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.

Ready to reach these companies? Verified emails and direct dials for all 9,663 IT support companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

IT support companies by geography

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 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.