Company lists · Data refreshed September 2026
Top 25 Outsourced IT support companies worldwide
RevenueBase identified 4,358 outsourced IT support companies worldwide as of September 2026 and tracks 34,832 professional contacts across them, including 7,764 with verified work emails. The United States is the largest market and London the largest hub.
This list covers outsourced IT support companies worldwide, 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. Country and city lists for outsourced IT support companies follow the table.
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 outsourced IT support companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 633 contacts → | ||||
Indirect evidence “With nearly 30 years in service, we've mastered the dynamic between cost-efficiency and customer service, meaning you won't have to sacrifice one for the other.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 618 contacts → | ||||
Partial evidence “Spar op til 80 % på den daglige drift af jeres IT miljø Lej en ekstern IT konsulent til optimering af IT i din virksomhed IT konsulent på lejebasis.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 562 contacts → | ||||
Strong 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. | |||||
| 4 | 510 contacts → | ||||
Strong evidence “ESP provides IT support services across the globe.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 409 contacts → | ||||
Indirect evidence “Tech Domain is a global field services and technology solutions provider helping enterprises, managed service providers, telecommunications companies, and technology partners…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 359 contacts → | ||||
Partial evidence “The SELLBYTEL Group is one of the worldwide leading outsourcing specialists and part of Webhelp.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 349 contacts → | ||||
Partial evidence “hammerjack is an Australian and Philippine-owned offshore outsourcing and Knowledge Process Outsourcing (KPO) provider.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 349 contacts → | ||||
Strong evidence “SPX is IT outsourcing company ir Riga, Latvia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 284 contacts → | ||||
Indirect evidence “World Connection helps founder-led, private equity-backed, and growth-stage small to mid-market companies transform customer experience into measurable business outcomes.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 281 contacts → | ||||
Indirect evidence “ABOUT US Systemantech Inc.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 251 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 197 contacts → | ||||
Partial evidence “SuperStaff is a comprehensive outsourcing solutions provider dedicated to delocalizing your workforce, reimagining your systems and model, and putting cost savings to work to grow…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 196 contacts → | ||||
Partial evidence “Looking for a reliable outsourcing partner that can help your business grow?” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 195 contacts → | ||||
Strong evidence “Tech Americas is a global technology process outsourcing company, managed IT and 24/7 field service provider.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 188 contacts → | ||||
Indirect evidence “Imagine a world where Managed Service Providers and SaaS businesses deliver outstanding customer experience around the clock, regardless of ticket volume or technical complexity.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 187 contacts → | ||||
Partial evidence “We are a leading global outsourcing services company with highly skilled professionals working for our clients and partners.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 161 contacts → | ||||
Strong evidence “Whether you need outsourced support for your ISP or for your business, after hours support, BPO services or just a virtual assistant to help you answer phones and get through the…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 161 contacts → | ||||
Strong evidence “Trupp Global Technologies is a global Business Process Outsourcing (BPO) and IT services company supporting startups, SMEs, and enterprises.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 151 contacts → | ||||
Indirect evidence “A BELLCOMSYS é uma empresa especializada em Tecnologia de Informação e suporte corporativo com 15 anos de experiência.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 137 contacts → | ||||
Strong evidence “Operating for 20+ years, Innovatia Technical Services Inc.(ITSI) is a technology outsourcing support partner, assisting clients with workflow & knowledge processes and technical…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 137 contacts → | ||||
Strong evidence “Netfor provides AI-powered customer support and IT services for multi-location businesses across North America.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 128 contacts → | ||||
Strong evidence “The Purple Guys, an Ntiva company, offers Trouble-Free IT Support to businesses across the Central and Southern US.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 120 contacts → | ||||
Partial evidence “Proziod Analytics is an experienced team of programmers, analysts, and IT experts.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 113 contacts → | ||||
Indirect evidence “Since 2012, we have been helping our clients in Business Development and achieving their goals in a market undergoing deep contraction and change.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 112 contacts → | ||||
Partial evidence “TERiX is a comprehensive global IT solution provider that focuses on quality & value in the data center.” 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: outsourced 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 outsourced IT support companies.
- Partial evidence
- Its own public description names part of outsourced 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 outsourced 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 4,358 outsourced IT support companies worldwide
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Outsourced IT support companies worldwide at a glance
As of Sep 21, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 outsourced 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.
- Coverage
- Every country. Country and city lists for outsourced IT support companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “outsourced 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 outsourced 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 outsourced IT support companies, and records with no verified work email.
- 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, 7,764 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.
Outsourced IT support companies by location
14 lists · largest firstEvery Outsourced IT support companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Outsourced IT support companies based in the United States1,047
- Outsourced IT support companies based in the United Kingdom636
- Outsourced IT support companies based in Brazil202
- Outsourced IT support companies based in India195
- Outsourced IT support companies based in Canada161
- Outsourced IT support companies based in Australia160
- Outsourced IT support companies based in Poland97
- Outsourced IT support companies based in South Africa88
- Outsourced IT support companies based in Germany70
- Outsourced IT support companies based in Spain70
- Outsourced IT support companies based in France60
- Outsourced IT support companies based in the Philippines47
- Outsourced IT support companies based in Italy41
- Outsourced IT support companies based in Romania32
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 outsourced 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 outsourced IT support companies are there worldwide?
RevenueBase identified 4,358 outsourced IT support companies worldwide 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?
Advantage Communications INC, headquartered in Portmore, tops this list with the largest team on record.
Which country has the most outsourced IT support companies?
The United States leads with 1,047 companies, followed by the United Kingdom (636) and Brazil (202). Every outsourced IT support companies list by country and city is linked on this page.
Which city has the most outsourced IT support companies?
London leads with 134 headquartered companies, followed by Sao Paulo (46) and New York (39).
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 7,764 verified decision-maker contacts tracked across these 4,358 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.
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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.