Company lists · Data refreshed September 2026

Top 25 IT outsourcing service providers worldwide

Name: IT outsourcing service providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 23,378 companies tracked

RevenueBase identified 23,378 IT outsourcing service providers worldwide as of September 2026 and tracks 604,747 professional contacts across them, including 90,043 with verified work emails and 0 with mobile numbers. India is the largest market and Hyderabad the largest hub.

This list covers IT outsourcing service providers 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 14, 2026. Country and city lists for IT outsourcing service providers 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 14, 2026 86% judged on-target in blind review

23,378Companies

604,747Contacts tracked

90,043Verified emails

0Mobile numbers

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The 25 largest IT outsourcing service providers worldwide

Ranked by team size

Top 25 of 23,378 IT outsourcing service providers worldwide, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to IT outsourcing service providers: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Intelcia	Partial evidence	Casablanca, MoroccoHQ checked Sep 14, 2026	10001+	13,214 contacts →
	Partial evidence “Intelcia is a global player in outsourcing, which has supported its clients for 20 years combining talents, technologies, and processes to offer a tailor-made service and skills…” Source: RevenueBase Database · checked Sep 14, 2026
2	HTC Global Services	Indirect evidence	Troy, MI, United StatesHQ checked Sep 14, 2026	10001+	8,866 contacts →
	Indirect evidence “HTC Global Services Inc, founded in 1990, headquartered in Troy, Michigan, is a global provider of Information Technology and Business Process Services and Solutions.” Source: RevenueBase Database · checked Sep 14, 2026
3	Cybage Software	Partial evidence	Pune, IndiaHQ checked Sep 14, 2026	5,001-10,000	8,806 contacts →
	Partial evidence “Cybage is an information technology company specializing in outsourced product engineering and IT consulting services.” Source: RevenueBase Database · checked Sep 14, 2026
4	Systems Limited	Partial evidence	Lahore, PakistanHQ checked Sep 14, 2026	5,001-10,000	7,672 contacts →
	Partial evidence “Systems Limited is a globally recognized IT software solution company offering state-of-the-art professional services and BPO offerings in the technology landscape.” Source: RevenueBase Database · checked Sep 14, 2026
5	Logica	Strong evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	10001+	7,416 contacts →
	Strong evidence “Logica is now part of CGI, a global IT and business process services provider delivering business consulting, systems integration and outsourcing services.” Source: RevenueBase Database · checked Sep 14, 2026
6	Atos Syntel	Indirect evidence	Troy, MI, United StatesHQ checked Sep 14, 2026	10001+	7,339 contacts →
	Indirect evidence “Atos\|Syntel is a leading global provider of integrated information technology and knowledge process services.” Source: RevenueBase Database · checked Sep 14, 2026
7	Adesso SE	Indirect evidence	Dortmund, GermanyHQ checked Sep 14, 2026	5,001-10,000	5,332 contacts →
	Indirect evidence “The future belongs to companies that effectively translate agentic AI into value creation.” Source: RevenueBase Database · checked Sep 14, 2026
8	Matrix	Indirect evidence	Kfar Saba, IsraelHQ checked Sep 14, 2026	10001+	4,980 contacts →
	Indirect evidence “matrix is the leading technology services company, employing over professionals worldwide.” Source: RevenueBase Database · checked Sep 14, 2026
9	Aspire Systems	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	1,001-5,000	4,953 contacts →
	Indirect evidence “Aspire Systems is a global technology services firm serving as a trusted technology partner for our customers.” Source: RevenueBase Database · checked Sep 14, 2026
10	CGS Computer Generated Solutions	Indirect evidence	New York, NY, United StatesHQ checked Sep 14, 2026	5,001-10,000	4,608 contacts →
	Indirect evidence “For over 40 years, CGS has enabled global enterprises, regional companies, and government agencies to drive breakthrough performance through business applications, enterprise…” Source: RevenueBase Database · checked Sep 14, 2026
11	Liderança Serviços	Indirect evidence	São José, BrazilHQ checked Sep 14, 2026	10001+	4,504 contacts →
	Indirect evidence “Atuamos nos principais setores de terceirização, e somos pioneiros na implantação de contratos à distância.” Source: RevenueBase Database · checked Sep 14, 2026
12	Emapta Global	Indirect evidence	Mandaluyong, PhilippinesHQ checked Sep 14, 2026	10001+	4,337 contacts →
	Indirect evidence “ANewEraOfGlobalTalent: Your Team.” Source: RevenueBase Database · checked Sep 14, 2026
13	Arcgate	Strong evidence	Udaipur, IndiaHQ checked Sep 14, 2026	1,001-5,000	4,122 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 14, 2026
14	Atos IT Solutions And Services A S	Partial evidence	Taastrup, DenmarkHQ checked Sep 14, 2026	n/a	3,655 contacts →
	Partial evidence “Atos er en international IT-serviceleverandør med en årlig omsætning i 2012 på 8.8 milliarder EUR og 76.400 medarbejdere i 47 lande.” Source: RevenueBase Database · checked Sep 14, 2026
15	Microsourcing	Partial evidence	Taguig, PhilippinesHQ checked Sep 14, 2026	5,001-10,000	3,508 contacts →
	Partial evidence “Outsourcing, reimagined - through talent that moves business forward.” Source: RevenueBase Database · checked Sep 14, 2026
16	Altron Digital Business	Partial evidence	Johannesburg, South AfricaHQ checked Sep 14, 2026	1,001-5,000	2,877 contacts →
	Partial evidence “Operate, optimise, and transform with the IT services company that offers the enterprise-grade solutions needed to grow your business.” Source: RevenueBase Database · checked Sep 14, 2026
17	Wissen Infotech	Indirect evidence	Hyderabad, IndiaHQ checked Sep 14, 2026	1,001-5,000	2,482 contacts →
	Indirect evidence “Wissen was established in the year We have global offices in the US, UK, Europe, Mexico, Middle East, and India, with best-in-class infrastructure and development facilities…” Source: RevenueBase Database · checked Sep 14, 2026
18	Simpress	Partial evidence	Sao Paulo, BrazilHQ checked Sep 14, 2026	1,001-5,000	2,414 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 14, 2026
19	CTIS	Indirect evidence	Barueri, BrazilHQ checked Sep 14, 2026	5,001-10,000	2,347 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 14, 2026
20	IT Group, INC	Partial evidence	Quezon City, PhilippinesHQ checked Sep 14, 2026	n/a	2,238 contacts →
	Partial evidence “IT Group, Inc.(also known as ITG), is an Information Technology solutions partner that endeavors to provide growing organizations with solutions that meet the unique needs of…” Source: RevenueBase Database · checked Sep 14, 2026
21	Aforeserve.com LTD	Partial evidence	Noida, IndiaHQ checked Sep 14, 2026	1,001-5,000	2,133 contacts →
	Partial evidence “Aforeserve delivers IT infrastructure services, field support, and managed operations for enterprises across India.” Source: RevenueBase Database · checked Sep 14, 2026
22	PT Danamas Insan Kreasi Andalan Dika	Partial evidence	Jakarta Pusat, IndonesiaHQ checked Sep 14, 2026	1,001-5,000	2,036 contacts →
	Partial evidence “PT Danamas Insan Kreasi Andalan (DIKA) adalah solusi outsourcing terpercaya untuk membantu bisnis Anda tumbuh lebih cepat dan efisien.” Source: RevenueBase Database · checked Sep 14, 2026
23	Devsinc	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,932 contacts →
	Indirect evidence “We are a global organization with two state-of-the-art delivery centers in Southeast Asia and four strategically located offices across three continents.” Source: RevenueBase Database · checked Sep 14, 2026
24	Nova RIO	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 14, 2026	1,001-5,000	1,895 contacts →
	Indirect evidence “A Nova Rio é uma empresa líder em multiplicidade de serviços, porque oferece um mundo de opções em terceirização para a sua empresa.” Source: RevenueBase Database · checked Sep 14, 2026
25	Nspira Management Services PVT LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 14, 2026	10001+	1,646 contacts →
	Indirect evidence “NSPIRA Management Services Pvt Ltd offers customized services to organizations that aim for professional excellence.” Source: RevenueBase Database · checked Sep 14, 2026

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 outsourcing service providers. 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 outsourcing service providers.
Partial evidence: Its own public description names part of IT outsourcing service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT outsourcing service providers. 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 23,378 IT outsourcing service providers worldwide

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IT outsourcing service providers worldwide at a glance

As of Sep 14, 2026

14.9%Verified-email coverage

25.9Average contacts per company

11-50Median size (employees)

2.8%Largest-city concentration · Hyderabad

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

8,340

11-50

9,063

51-200

4,005

201-500

1,132

501-1,000

402

1,001-5,000

279

5,001-10,000

10001+

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 outsourcing service providers, 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: 65 countries, largest first: India, the United States, Brazil, the United Kingdom, Pakistan, Germany, Canada, Australia, France, the Philippines and 55 more. Country and city lists for IT outsourcing service providers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “IT outsourcing service providers”. 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 outsourcing service providers), 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 outsourcing service providers, 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, 90,043 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 14, 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 outsourcing service providers by location

132 lists · largest first

Every IT outsourcing service providers 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 outsourcing service providers, 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 outsourcing service providers are there worldwide?

RevenueBase identified 23,378 IT outsourcing service providers 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?

Intelcia, headquartered in Casablanca, tops this list with the largest team on record.

Which country has the most IT outsourcing service providers?

India leads with 6,618 companies, followed by the United States (4,480) and Brazil (1,077). Every IT outsourcing service providers list by country and city is linked on this page.

Which city has the most IT outsourcing service providers?

Hyderabad leads with 643 headquartered companies, followed by Bangalore (594) and Pune (416).

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 90,043 verified decision-maker contacts tracked across these 23,378 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 14, 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.