Company lists · Data refreshed September 2026

Top 25 IT support outsourcing companies worldwide

RevenueBase identified 29,910 IT support outsourcing companies worldwide as of September 2026 and tracks 349,053 professional contacts across them, including 77,418 with verified work emails. The United States is the largest market and London the largest hub.

This list covers IT support outsourcing 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 IT support outsourcing 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
29,910Companies
349,053Contacts tracked
77,418Verified emails
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The 25 largest IT support outsourcing companies worldwide

Ranked by team size
Top 25 of 29,910 IT support outsourcing companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to IT support outsourcing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceUdaipur, IndiaHQ checked Sep 21, 20261,001-5,0004,122 contacts →

Strong evidence

“We are a fast-growing BPO & IT outsourcing firm with a team of 2500+ people passionate about data and technology.”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceHebron, KY, PalestineHQ checked Sep 21, 20261,001-5,0002,447 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceSao Paulo, BrazilHQ checked Sep 21, 20261,001-5,0002,414 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceBarueri, BrazilHQ checked Sep 21, 20265,001-10,0002,347 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
5Strong evidenceNoida, IndiaHQ checked Sep 21, 20261,001-5,0002,133 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceFort Lauderdale, United StatesHQ checked Sep 21, 20265,001-10,0002,008 contacts →

Indirect evidence

“Moder was founded in December 2020, with the mission to positively impact the financial health of companies in need by powering their in-house processes using top talent, workflow…”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceGuatemalaHQ checked Sep 21, 20265,001-10,0001,979 contacts →

Indirect evidence

“Regardless of your Company’s size (from Start-ups to Fortune 500), business vertical or service requirements, we act as a seamless extension of your team to help you grow, and…”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceAustin, TX, United StatesHQ checked Sep 21, 20261,001-5,0001,711 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, 2026
9Strong evidenceNew Delhi, IndiaHQ checked Sep 21, 20261,001-5,0001,606 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
10Strong evidenceCopenhagen, DenmarkHQ checked Sep 21, 20261,001-5,0001,587 contacts →

Strong evidence

“NNIT is an international IT service provider offering IT consultancy and the development, implementation and outsourcing of IT services.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceCincinnati, OH, United StatesHQ checked Sep 21, 20261,001-5,0001,484 contacts →

Indirect evidence

“At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceFoxborough, MA, United StatesHQ checked Sep 21, 20261,001-5,0001,432 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, 2026
13Strong evidenceGurgaon, IndiaHQ checked Sep 21, 20261,001-5,0001,275 contacts →

Strong evidence

“Gemini Solutions is a global IT firm, a leading offshore outsourcing company with a specialized focus in financial services.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceSt. Cloud, MN, United StatesHQ checked Sep 21, 20261,001-5,0001,203 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, 2026
15Partial evidenceBrea, CA, United StatesHQ checked Sep 21, 20261,001-5,0001,063 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
16Strong evidenceSantiago, ChileHQ checked Sep 21, 20261,001-5,0001,053 contacts →

Strong evidence

“We are the leading company nationwide in support services for technological projects, which are developed through our 4 Business Units: IT People, Software Engineering, BPO and…”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceLondon, United KingdomHQ checked Sep 21, 20261,001-5,0001,039 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
18Strong evidenceRacine, WI, United StatesHQ checked Sep 21, 2026n/a1,018 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
19Strong evidenceIndiaHQ checked Sep 21, 2026501-1,0001,012 contacts →

Strong evidence

“Aloha Technology is a global IT services outsourcing firm delivering digital transformation by developing technology to create revenue growth and improve agility by reinventing…”

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidencePozuelo De Alarcón, SpainHQ checked Sep 21, 20261,001-5,0001,007 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
21Strong evidenceDhaka, BangladeshHQ checked Sep 21, 20261,001-5,000953 contacts →

Strong evidence

“Digicon Technologies PLC is a leading outsourcing organization in Bangladesh, with an industry leading edge in the vertical of BPO and IT/ITES solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceMiami Beach, FL, United StatesHQ checked Sep 21, 2026501-1,000887 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, 2026
23Strong evidenceWhippany, NJ, United StatesHQ checked Sep 21, 2026n/a871 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, 2026
24Indirect evidenceCaracas, VenezuelaHQ checked Sep 21, 2026n/a865 contacts →

Indirect evidence

“Statistics first”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceNew York, United StatesHQ checked Sep 21, 20261,001-5,000860 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, 2026

Showing 25 of 29,910 IT support outsourcing companies worldwide

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IT support outsourcing companies worldwide at a glance

As of Sep 21, 2026
22.2%Verified-email coverage
11.7Average contacts per company
1-10Median size (employees)
1.9%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
16,706
11-50
9,433
51-200
2,567
201-500
647
501-1,000
222
1,001-5,000
163
5,001-10,000
28
10001+
24

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 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.
Coverage
Every country. Country and city lists for IT support outsourcing companies are linked below.
What qualifies
Companies worldwide 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.
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, 77,418 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 location

130 lists · largest first

Every IT support outsourcing companies 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 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 worldwide?

RevenueBase identified 29,910 IT support outsourcing 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?

Arcgate, headquartered in Udaipur, tops this list with the largest team on record.

Which country has the most IT support outsourcing companies?

The United States leads with 8,228 companies, followed by India (2,555) and the United Kingdom (2,420). Every IT support outsourcing companies list by country and city is linked on this page.

Which city has the most IT support outsourcing companies?

London leads with 570 headquartered companies, followed by Sao Paulo (290) and New York (249).

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 77,418 verified decision-maker contacts tracked across these 29,910 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.