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Company lists · Data refreshed September 2026

Top 25 Managed service providers based in the United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 10,544 companies tracked

RevenueBase identified 10,544 managed service providers headquartered in the United States as of September 2026 and tracks 132,571 professional contacts across them, including 51,792 with verified work emails and 49,233 with mobile numbers. New York is the largest hub.

This list covers managed 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
10,544Companies
132,571Contacts tracked
51,792Verified emails
49,233Mobile numbers
Unlock all 10,544 companies Free signup · no credit card · 500 free credits

The 25 largest managed service providers based in the United States

Ranked by team size
Top 25 of 10,544 managed service providers based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names managed service providers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
GURUStrong evidence
Rockville, MD, United StatesHQ checked Sep 5, 2026n/a1,906

“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: company website · checked Sep 5, 2026
2
Eplus INCIndirect evidence
Herndon, VA, United StatesHQ checked Sep 5, 20261,001-5,0001,749

“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: company website · checked Sep 5, 2026
3
ThriveIndirect evidence
Foxborough, MA, United StatesHQ checked Sep 5, 20261,001-5,0001,432

“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: company website · checked Sep 5, 2026
4
Marco TechnologiesIndirect evidence
St. Cloud, MN, United StatesHQ checked Sep 5, 20261,001-5,0001,203

“At Marco, we're all about making technology work for you (and not the other way around).”

Source: company website · checked Sep 5, 2026
5
SolugenixIndirect evidence
Brea, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,063

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

Source: company website · checked Sep 5, 2026
6
SynoptekStrong evidence
Costa Mesa, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,037

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

Source: company website · checked Sep 5, 2026
7
CCB TechnologyIndirect evidence
Racine, WI, United StatesHQ checked Sep 5, 2026n/a1,018

“CCB Technology provides award-winning IT support and project services to customers nationwide.”

Source: company website · checked Sep 5, 2026
8
IT By DesignIndirect evidence
Freehold, NJ, United StatesHQ checked Sep 5, 2026501-1,000928

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

Source: company website · checked Sep 5, 2026
9
Buchanan TechnologiesIndirect evidence
Grapevine, TX, United StatesHQ checked Sep 5, 2026501-1,000818

“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: company website · checked Sep 5, 2026
10
TPXIndirect evidence
Austin, TX, United StatesHQ checked Sep 5, 20261,001-5,000751

“TPx is the reliable sidekick every growing business deserves, powering your tech while you take the lead.”

Source: company website · checked Sep 5, 2026
11
LogicalisusIndirect evidence
Troy, MI, United StatesHQ checked Sep 5, 2026501-1,000710

“We are Architects of Change.”

Source: company website · checked Sep 5, 2026
12
IT SolutionsStrong evidence
Fort Washington, PA, United StatesHQ checked Sep 5, 2026501-1,000683

“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: company website · checked Sep 5, 2026
13
Visual Edge ITIndirect evidence
North Canton, OH, United StatesHQ checked Sep 5, 20261,001-5,000655

“ABOUT VISUAL EDGE, INC.”

Source: company website · checked Sep 5, 2026
14
DecisiononeIndirect evidence
Havertown, PA, United StatesHQ checked Sep 5, 2026501-1,000623

“DecisionOne is the largest global independent technology support organization in the TPM and ISO markets.”

Source: company website · checked Sep 5, 2026
15
NICIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 2026n/a581

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

Source: company website · checked Sep 5, 2026
16
IntegrisStrong evidence
Cranbury Township, NJ, United StatesHQ checked Sep 5, 2026501-1,000574

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

Source: company website · checked Sep 5, 2026
17
Maintech, IncorporatedStrong evidence
Clark, NJ, United StatesHQ checked Sep 5, 2026501-1,000529

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

Source: company website · checked Sep 5, 2026
18
ElectricIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-200524

“Electric empowers businesses with autonomous IT for every stage of the employee lifecycle.”

Source: company website · checked Sep 5, 2026
19
Ntiva, INCIndirect evidence
Mclean, VA, United StatesHQ checked Sep 5, 2026501-1,000505

“At Ntiva, growing people (our employees, partners, and clients) is our mission.”

Source: company website · checked Sep 5, 2026
20
Blue MantisIndirect evidence
Portsmouth, NH, United StatesHQ checked Sep 5, 2026201-500503

“Blue Mantis is a security-first, IT solutions and services provider with a 30+ year history of successfully helping clients achieve business modernization by applying…”

Source: company website · checked Sep 5, 2026
21
Vc3Strong evidence
Columbia, SC, United StatesHQ checked Sep 5, 2026501-1,000495

“VC3 is a managed IT and cybersecurity services provider serving organizations throughout the US and Canada.”

Source: company website · checked Sep 5, 2026
22
MCPCStrong evidence
Cleveland, OH, United StatesHQ checked Sep 5, 2026201-500484

“MCPC is a leading managed service provider offering end-to-end IT solutions designed to optimize and secure your technology infrastructure.”

Source: company website · checked Sep 5, 2026
23
XTIUMStrong evidence
New York, NY, United StatesHQ checked Sep 5, 2026501-1,000478

“XTIUM, created through the business combination of ATSG and Evolve IP, delivers a modern security-first approach to the managed IT services experience.”

Source: company website · checked Sep 5, 2026
24
MeriplexIndirect evidence
Houston, TX, United StatesHQ checked Sep 5, 2026501-1,000450

“If you’re a midsize enterprise with employees (i.e, an “MSE” according to Gartner), we know what you’re going through.”

Source: company website · checked Sep 5, 2026
25
Cmit SolutionsIndirect evidence
Austin, TX, United StatesHQ checked Sep 5, 2026501-1,000439

“CMIT Solutions is a premier IT solution company dedicated to delivering enterprise-class IT support to businesses across North America.”

Source: company website · checked Sep 5, 2026

Showing 25 of 10,544 managed service providers based in the United States

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Managed service providers based in the United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 287 HQs
49,233Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
6,217
11-50
3,430
51-200
673
201-500
121
501-1,000
45
1,001-5,000
27
5,001-10,000
5
10001+
6

Verified emails by last verification

0–30
48,268
31–60
3,219
61–90
24
90–180
23
180+
258

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 service providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 service providers”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among managed 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 an evidence 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, 51,792 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 5, 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 service providers by metro

Frequently asked

How many managed service providers are there based in the United States?

RevenueBase identified 10,544 managed 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?

GURU, headquartered in Rockville, tops this list with the largest team on record.

Which city has the most managed service providers?

New York leads with 287 headquartered companies, followed by Houston (202) and Chicago (132).

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 51,792 verified decision-maker contacts tracked across these 10,544 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 10,544 managed service providers based in the United States. Start with a free account, no credit card.

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Related lists

Browse: Companies home · All United States lists · All Managed service providers lists · New lists

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.

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