Company lists · Data refreshed November 2026

Top 25 IT support outsourcing services worldwide

RevenueBase identified 20,270 company matches for IT support outsourcing services worldwide as of November 2026 and tracks 192,326 professional contacts across them, including 40,596 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for IT support outsourcing services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for IT support outsourcing services follow the table.

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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
20,270Companies
192,326Contacts tracked
40,596Verified emails
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The 25 largest IT support outsourcing services worldwide

Ranked by team size
Top 25 of 20,270 company matches for IT support outsourcing services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSao Paulo, BrazilHQ recorded Nov 5, 20261,001-5,0002,710 contacts →

Exact match

“Há mais de 20 anos, tornamos a vida do nosso cliente mais fácil, com soluções em outsourcing de equipamentos de TI que oferecem uma rotina mais estratégica e sustentável para as…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBarueri, BrazilHQ recorded Nov 5, 20265,001-10,0002,702 contacts →

Exact match

“CTIS, a SONDA Group company, is recognized as one of the largest and most important Brazilian information technology companies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchHebron, KY, PalestineHQ recorded Nov 5, 20261,001-5,0002,671 contacts →

Exact match

“Technology is mission-critical to your business so it must work, continuously.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchNoida, IndiaHQ recorded Nov 5, 20261,001-5,0002,141 contacts →

Exact match

“Aforeserve delivers IT infrastructure services, field support, and managed operations for enterprises across India.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchNew Delhi, CA, IndiaHQ recorded Nov 5, 20261,001-5,0001,692 contacts →

Exact match

“SunTec, a multi-process IT outsourcing company, offers a complete bouquet of services for mobile, web, data solutions, ePublishing, eCommerce and digital marketing.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchBrea, GA, United StatesHQ recorded Nov 5, 20261,001-5,0001,151 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,0001,091 contacts →

Exact match

“Global business doesn’t have to be complicated.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchPozuelo De Alarcón, SpainHQ recorded Nov 5, 20261,001-5,0001,085 contacts →

Exact match

“Specialized services in order to provide to other companies outsourcing for activities, improving its performance and cost.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchRacine, WI, United StatesHQ recorded Nov 5, 2026n/a1,040 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchSanto Domingo, United StatesHQ recorded Nov 5, 20261,001-5,0001,027 contacts →

Exact match

“Horatio is a premier, tech-enabled outsourcing partner helping ambitious companies scale customer experience and complex business operations without compromising quality…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchSão José, BrazilHQ recorded Nov 5, 20261,001-5,0001,025 contacts →

Exact match

“Atuante no mercado de Tecnologia desde o ano de 1991, com certificação ISO 9001 para prestação de serviços de TI e fabricação de computadores, a IlhaService é uma empresa…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchWhippany, NJ, United StatesHQ recorded Nov 5, 2026n/a900 contacts →

Exact match

“IND specializes in fixed-cost IT support and consulting services for small and medium-sized businesses in New Jersey.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchHyderabad, IndiaHQ recorded Nov 5, 2026501-1,000837 contacts →

Exact match

“At People Prime Worldwide, we help organizations transform and scale through AIML Technology Services, AIML Solutions, IT Consulting, Staff Augmentation, and Managed Services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchGrapevine, TX, United StatesHQ recorded Nov 5, 2026501-1,000806 contacts →

Exact match

“As a leading IT consulting and outsourcing services firm, Buchanan Technologies helps organizations across North America turn their business technology into a powerful competitive…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchAustin, TX, United StatesHQ recorded Nov 5, 20261,001-5,000805 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchMakati City, PhilippinesHQ recorded Nov 5, 2026501-1,000792 contacts →

Exact match

“Vértere Global Solutions, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchNa, United StatesHQ recorded Nov 5, 2026n/a705 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchUnited StatesHQ recorded Nov 5, 20261,001-5,000694 contacts →

Exact match

“TeamLogic IT provides IT service, support, project consultation and account management for businesses.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchLisbon, PortugalHQ recorded Nov 5, 20261,001-5,000692 contacts →

Exact match

“PrimeIT is an international company with more than 19 years of experience delivering the best solutions in a wide range of services: Team Extension, Team-as-a-Service, Managed…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchHavertown, PA, United StatesHQ recorded Nov 5, 2026501-1,000691 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,000651 contacts →

Exact match

“Excis is a trusted global IT services company, delivering agile, multilingual support across 150+ countries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchDenmarkHQ recorded Nov 5, 2026n/a642 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSan Marcos, TX, United StatesHQ recorded Nov 5, 20261,001-5,000587 contacts →

Exact match

“teleNetwork is a leading provider of outsourced customer service, technical support, and sales enablement solutions for technology products and services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchBarueri, BrazilHQ recorded Nov 5, 2026501-1,000584 contacts →

Exact match

“Somos a Arklok, o OUTSOURCING de verdade.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchBlumenau, BrazilHQ recorded Nov 5, 2026501-1,000582 contacts →

Exact match

“Company focused on the Digital Transformation process, offering outsourcing of IT activities, through a team of qualified and qualified consultants, with knowledge in emerging…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 20,270 IT support outsourcing services worldwide

See the full list, filter by size, metro and specialty, and access 40,596 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT support outsourcing services worldwide at a glance

As of Nov 5, 2026
21.1%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
2.1%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
12,536
11-50
5,510
51-200
1,382
201-500
323
501-1,000
110
1,001-5,000
85
5,001-10,000
12
10001+
14

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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.
Coverage
Every country. Country and city lists for IT support outsourcing services are linked below.
What qualifies
Company records worldwide whose business descriptions match “IT support outsourcing services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 40,596 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

IT support outsourcing services by location

108 lists · largest first

Every IT support outsourcing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT support outsourcing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT support outsourcing services are there worldwide?

RevenueBase identified 20,270 company matches for IT support outsourcing services worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Simpress tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most IT support outsourcing services?

The United States leads with 4,868 companies, followed by the United Kingdom (2,031) and India (1,290). Every IT support outsourcing services list by country and city is linked on this page.

Which city has the most IT support outsourcing services?

London leads with 423 company records, followed by Sao Paulo (222) and Bangalore (126).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 40,596 professional contacts with verified work emails tracked across these 20,270 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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 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.