Company lists · Data refreshed September 2026

Top 25 Managed IT service providers based in the United States

RevenueBase identified 10,428 managed IT service providers headquartered in the United States as of September 2026 and tracks 166,838 professional contacts across them, including 64,714 with verified work emails. New York is the largest hub.

This list covers managed IT service providers 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
10,428Companies
166,838Contacts tracked
64,714Verified emails
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The 25 largest managed IT service providers based in the United States

Ranked by team size
Top 25 of 10,428 managed IT service providers 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 managed IT service providers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceFort Mill, SC, United StatesHQ checked Sep 20, 20265,001-10,0007,753 contacts →

Indirect evidence

“Unleash Your Digital Workplace Potential with Compucom To be at the forefront of your industry, having the right technology is non-negotiable.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,0003,798 contacts →

Indirect evidence

“At Presidio, speed and quality meet technology and innovation.”

Source: RevenueBase Database · checked Sep 20, 2026
3Strong evidenceRockville, MD, United StatesHQ checked Sep 20, 2026n/a1,906 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
4Partial evidenceHerndon, VA, United StatesHQ checked Sep 20, 20261,001-5,0001,749 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
5Partial evidenceMclean, VA, United StatesHQ checked Sep 20, 20261,001-5,0001,683 contacts →

Partial evidence

“DMI is a leading provider of digital services and technology solutions with a focus on end-to-end managed services, including managed mobility, cloud, cybersecurity, network…”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceFoxborough, MA, United StatesHQ checked Sep 20, 20261,001-5,0001,432 contacts →

Indirect evidence

“Thrive is a NextGen 3.0 global technology outsourcing provider that empowers small and mid-market organizations to transform their technology into a strategic advantage.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceSt. Cloud, MN, United StatesHQ checked Sep 20, 20261,001-5,0001,203 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
8Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 202610001+1,094 contacts →

Indirect evidence

“Cox Business provides a wide range of technology solutions for businesses of all sizes with reliable, scalable products and services tailored to your unique needs.”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceBrea, CA, United StatesHQ checked Sep 20, 20261,001-5,0001,063 contacts →

Partial evidence

“Technology only matters when it helps the business run better.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceCosta Mesa, CA, United StatesHQ checked Sep 20, 20261,001-5,0001,037 contacts →

Partial evidence

“Synoptek is a leading global managed services provider and technology consulting firm that delivers transformative business results.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceDallas, TX, United StatesHQ checked Sep 20, 2026501-1,0001,032 contacts →

Partial evidence

“As an award-winning, global IT solutions provider, we are changing the nature of transformation.”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceFreehold, NJ, United StatesHQ checked Sep 20, 2026501-1,000928 contacts →

Partial evidence

“For more than 20 years, IT By Design has been the growth partner MSPs trust to scale profitably.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceGrapevine, TX, United StatesHQ checked Sep 20, 2026501-1,000818 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
14Partial evidenceDowners Grove, IL, United StatesHQ checked Sep 20, 2026501-1,000779 contacts →

Partial evidence

“When it comes to achieving a tangible ROI and sustainable performance from your IT environment, Sentinel takes the lead.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 2026n/a762 contacts →

Indirect evidence

“Apptix was acquired by Fusion Connect in 2016.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceAustin, TX, United StatesHQ checked Sep 20, 20261,001-5,000751 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
17Strong evidenceTampa, FL, United StatesHQ checked Sep 20, 2026501-1,000732 contacts →

Strong 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
18Indirect evidenceTroy, MI, United StatesHQ checked Sep 20, 2026501-1,000710 contacts →

Indirect evidence

“We are Architects of Change.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceFort Washington, PA, United StatesHQ checked Sep 20, 2026501-1,000683 contacts →

Partial 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
20Indirect evidenceNorth Canton, OH, United StatesHQ checked Sep 20, 20261,001-5,000655 contacts →

Indirect evidence

“ABOUT VISUAL EDGE, INC.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 20, 2026n/a581 contacts →

Partial evidence

“NIC has been providing IT Solutions, Cybersecurity, and Cloud Services for businesses and organizations for the past two decades.”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceCranbury Township, NJ, United StatesHQ checked Sep 20, 2026501-1,000574 contacts →

Partial evidence

“Integris is a national leader in future-ready Managed Services, delivering innovative solutions that drive digital maturity for small and midsize businesses.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceLumberton, NJ, United StatesHQ checked Sep 20, 2026201-500573 contacts →

Partial evidence

“Founded in 1997, Miles IT is a leading IT company that is dedicated to helping businesses nationwide accomplish more through the use of technology.”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceChicago, IL, United StatesHQ checked Sep 20, 2026501-1,000537 contacts →

Partial evidence

“Marble Box provides managed services for independent insurance agencies for functions, that while vital to the operation of a successful insurance agency, take resources away from…”

Source: RevenueBase Database · checked Sep 20, 2026
25Strong evidenceClark, NJ, United StatesHQ checked Sep 20, 2026501-1,000529 contacts →

Strong evidence

“Maintech: A trusted global partner for IT Infrastructure Solutions and Managed Services, leveraging over 50 years of experience to empower businesses worldwide.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 10,428 managed IT service providers based in the United States

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Managed IT service providers based in the United States at a glance

As of Sep 20, 2026
38.8%Verified-email coverage
16.0Average contacts per company
1-10Median size (employees)
2.9%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
5,760
11-50
3,596
51-200
786
201-500
159
501-1,000
59
1,001-5,000
31
5,001-10,000
6
10001+
8

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 10,428 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 managed IT service providers, 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 “managed IT service providers”. 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 managed IT service providers), 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 managed IT service providers, 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, 64,714 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.

Managed IT service providers 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 managed IT service providers, 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 managed IT service providers are there based in the United States?

RevenueBase identified 10,428 managed IT service providers 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?

Compucom, headquartered in Fort Mill, tops this list with the largest team on record.

Which city has the most managed IT service providers?

New York leads with 307 headquartered companies, followed by Houston (210) and Dallas (135).

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 64,714 verified decision-maker contacts tracked across these 10,428 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.