Company lists · Data refreshed September 2026
Top 25 IT support outsourcing companies based in the United States
RevenueBase identified 8,228 IT support outsourcing companies headquartered in the United States as of September 2026 and tracks 109,534 professional contacts across them, including 34,774 with verified work emails. New York is the largest hub.
This list covers IT support 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 21, 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 IT support outsourcing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,711 contacts → | ||||
Partial evidence “SupportNinja provides customer experience and back-office support services for tech companies and startups around the world.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,484 contacts → | ||||
Indirect evidence “At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,432 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,063 contacts → | ||||
Partial evidence “Technology only matters when it helps the business run better.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,018 contacts → | ||||
Strong evidence “CCB Technology provides award-winning IT support and project services to customers nationwide.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 887 contacts → | ||||
Indirect evidence “At Atidiv, we help DTC brands and media agencies scale without the overhead of building large in-house teams.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 871 contacts → | ||||
Strong evidence “IND specializes in fixed-cost IT support and consulting services for small and medium-sized businesses in New Jersey.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 860 contacts → | ||||
Partial evidence “Horatio is a premier, tech-enabled outsourcing partner helping ambitious companies scale customer experience and complex business operations without compromising quality…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 818 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 676 contacts → | ||||
Partial evidence “Headquartered in the United States, Tenpath Solutions is a multinational leader in outsourced IT Professional Services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 658 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 655 contacts → | ||||
Indirect evidence “ABOUT VISUAL EDGE, INC.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 623 contacts → | ||||
Partial evidence “DecisionOne is the largest global independent technology support organization in the TPM and ISO markets.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 581 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 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 574 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 562 contacts → | ||||
Partial evidence “teleNetwork is a leading provider of outsourced customer service, technical support, and sales enablement solutions for technology products and services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 529 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 505 contacts → | ||||
Indirect evidence “At Ntiva, growing people (our employees, partners, and clients) is our mission.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 447 contacts → | ||||
Indirect evidence “Velan Info Services is a leading multidisciplinary service provider with its clients across the globe.” Source: RevenueBase Database · checked Sep 21, 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: IT support 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 IT support outsourcing companies.
- Partial evidence
- Its own public description names part of IT support outsourcing 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 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 8,228 IT support outsourcing 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 34,774 reachable decision-makers.
Free signup · no credit card
IT support outsourcing companies based in the United States at a glance
As of Sep 21, 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 8,228 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 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 “IT support 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 IT support 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 IT support 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, 34,774 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 21, 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 outsourcing companies by metro
- IT support outsourcing companies in New York249
- IT support outsourcing companies in Houston137
- IT support outsourcing companies in Miami101
- IT support outsourcing companies in Chicago90
- IT support outsourcing companies in Dallas87
- IT support outsourcing companies in Austin83
- IT support outsourcing companies in San Diego77
- IT support outsourcing companies in Los Angeles75
- IT support outsourcing companies in Atlanta73
- IT support outsourcing companies in Tampa69
- IT support outsourcing companies in Phoenix61
- IT support outsourcing companies in Las Vegas57
- IT support outsourcing companies in Charlotte52
- IT support outsourcing companies in Denver51
- IT support outsourcing companies in Orlando50
- IT support outsourcing companies in Irvine49
- IT support outsourcing companies in Seattle49
- IT support outsourcing companies in San Francisco46
- IT support outsourcing companies in San Antonio42
- IT support outsourcing companies in Portland40
- IT support outsourcing companies in Jacksonville37
- IT support outsourcing companies in Wilmington35
- IT support outsourcing companies in Sheridan34
- IT support outsourcing companies in Arlington33
- IT support outsourcing companies in San Jose31
- IT support outsourcing companies in Columbus30
- IT support outsourcing companies in Frisco29
- IT support outsourcing companies in Indianapolis29
- IT support outsourcing companies in Sacramento29
- IT support outsourcing companies in Fort Lauderdale28
- IT support outsourcing companies in Louisville28
- IT support outsourcing companies in Cincinnati27
- IT support outsourcing companies in Irving27
- IT support outsourcing companies in Pittsburgh27
- IT support outsourcing companies in Boston26
- IT support outsourcing companies in Greenville26
- IT support outsourcing companies in Nashville26
- IT support outsourcing companies in Richmond26
- IT support outsourcing companies in Troy25
- IT support outsourcing companies in Washington25
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 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 IT support outsourcing companies are there based in the United States?
RevenueBase identified 8,228 IT support 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?
Supportninja, headquartered in Austin, tops this list with the largest team on record.
Which city has the most IT support outsourcing companies?
New York leads with 249 headquartered companies, followed by Houston (137) and Miami (101).
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 34,774 verified decision-maker contacts tracked across these 8,228 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 8,228 IT support outsourcing companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
IT support outsourcing companies by geography
- IT support outsourcing companies based in Brisbane, Australia
- IT support outsourcing companies based in Melbourne, Australia
- IT support outsourcing companies based in Perth, Australia
- IT support outsourcing companies based in Sydney, Australia
- IT support outsourcing companies based in Belo Horizonte, Brazil
- IT support outsourcing companies based in Curitiba, Brazil
- IT support outsourcing companies based in Porto Alegre, Brazil
- IT support outsourcing companies based in Rio De Janeiro, Brazil
- IT support outsourcing companies based in Sao Paulo, Brazil
- IT support outsourcing companies based in Calgary, Canada
- IT support outsourcing companies based in Edmonton, Canada
- IT support outsourcing companies based in Mississauga, Canada
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT support outsourcing companies based in Brisbane, Australia
- IT support outsourcing companies based in Melbourne, Australia
- IT support outsourcing companies based in Perth, Australia
- IT support outsourcing companies based in Sydney, Australia
- IT support outsourcing companies based in Belo Horizonte, Brazil
- IT support outsourcing companies based in Curitiba, Brazil