Company lists · Data refreshed September 2026
Top 25 System administration outsourcing companies based in the United States
RevenueBase identified 2,809 system administration outsourcing companies headquartered in the United States as of September 2026 and tracks 22,176 professional contacts across them, including 8,731 with verified work emails. New York is the largest hub.
This list covers system administration outsourcing 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 29, 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 system administration outsourcing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 505 contacts → | ||||
Indirect evidence “At Ntiva, growing people (our employees, partners, and clients) is our mission.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 439 contacts → | ||||
Indirect 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 210 contacts → | ||||
Indirect evidence “Since 1985, The AME Group has assisted our clients by maximizing revenue, reducing expenses, and mitigating risks utilizing a portfolio of award-winning IT solutions, proven…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 182 contacts → | ||||
Indirect evidence “DSN Group provides cost effective solutions that enable companies to manage their IT/computer infrastructure better.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 181 contacts → | ||||
Indirect evidence “For over 10 Years, Global Tech Solutions (GTS) has been servicing and managing customer’s information technology needs, including hardware and software procurement, installation…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 175 contacts → | ||||
Indirect evidence “HiWAAY's Network Services specializes in network design, business process analysis, information security and managed IT services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 138 contacts → | ||||
Indirect evidence “PCI's goal is to provide expert IT capabilities that establish compliance in a cost-effective manner which allow businesses to focus on their core competency.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 120 contacts → | ||||
Indirect evidence “At NGTSol, we prioritize the protection and efficient management of our clients' technology infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 119 contacts → | ||||
Indirect evidence “Rx Technology is San Antonio’s premier family-owned technology partner, specializing in end-to-end IT lifecycle management.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 113 contacts → | ||||
Indirect evidence “MCA was founded in 1987 by Mike & Karen Collins.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 111 contacts → | ||||
Indirect evidence “HiTech Computers was founded in 1997 to provide the North Louisiana area with quality IT services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 106 contacts → | ||||
Indirect evidence “Named MSP of the year in 2020, TeamLogic IT is a provider of a full spectrum of IT services and computer support for businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 104 contacts → | ||||
Indirect evidence “Hassle Free IT.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 104 contacts → | ||||
Indirect evidence “Abtech Technologies is a leading IT solutions, support and managed services provider based in Carlsbad California.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 101 contacts → | ||||
Indirect evidence “HOCS CONSULTING has been in the business of helping small, medium and large sized business with their IT IT Support needs in New York since 1991.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 98 contacts → | ||||
Indirect evidence “Tech-Keys provides industry leading IT design, implementation, support and maintenance for small to medium businesses in multiple verticals throughout the US.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 91 contacts → | ||||
Indirect evidence “Link Computer Corporation was forged from quality service and a commitment to excellence and innovation.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 82 contacts → | ||||
Indirect evidence “Complete Network, with locations in Albany, NY, Bluffton, SC, and Charlotte, NC is a recognized leader in outsourced IT services to small and midsize businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 82 contacts → | ||||
Indirect evidence “Nothing But NET (NBN) is a Managed Services Provider (MSP) of Information Technology (IT) solutions and services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 81 contacts → | ||||
Indirect evidence “CIO Solutions is a managed services provider supporting the information technology solutions of small to mid-sized businesses throughout Central California.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 81 contacts → | ||||
Partial evidence “AMS is an industry veteran of designing, building, configuring and maintaining highly reliable system environments for Electronic Design and Automation (EDA) workflows.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 78 contacts → | ||||
Indirect evidence “We’re a full-service MSP offering custom, leading-edge solutions for SMB, midmarket, and enterprise organizations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 76 contacts → | ||||
Indirect evidence “Since 2004, Cinch I.T, Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 74 contacts → | ||||
Indirect evidence “Access.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 74 contacts → | ||||
Indirect evidence “SERVICES FOR SMALL BUSINESS Small and Medium Businesses have special needs often not addressed or addressed poorly by information service providers who focus on large enterprises.” Source: RevenueBase Database · checked Sep 29, 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: system administration outsourcing 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 system administration outsourcing companies.
- Partial evidence
- Its own public description names part of system administration outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name system administration outsourcing 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 2,809 system administration outsourcing companies based in the United States
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System administration outsourcing companies based in the United States at a glance
As of Sep 29, 2026Companies by employee count
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 2,809 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 system administration outsourcing 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 “system administration outsourcing 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 system administration outsourcing 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 system administration outsourcing 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, 8,731 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 29, 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.
System administration outsourcing companies by metro
- System administration outsourcing companies in New York67
- System administration outsourcing companies in Houston47
- System administration outsourcing companies in Miami35
- System administration outsourcing companies in San Diego32
- System administration outsourcing companies in Los Angeles29
- System administration outsourcing companies in Atlanta28
- System administration outsourcing companies in Austin28
- System administration outsourcing companies in Dallas25
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 system administration outsourcing 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 system administration outsourcing companies are there based in the United States?
RevenueBase identified 2,809 system administration outsourcing 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?
Ntiva, INC, headquartered in Mclean, tops this list with the largest team on record.
Which city has the most system administration outsourcing companies?
New York leads with 67 headquartered companies, followed by Houston (47) and Miami (35).
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 8,731 verified decision-maker contacts tracked across these 2,809 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 29, 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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