Company lists · Data refreshed September 2026

Top 25 System administration outsourcing companies worldwide

Name: System administration outsourcing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 9,762 companies tracked

RevenueBase identified 9,762 company matches for system administration outsourcing companies worldwide as of September 2026 and tracks 81,726 professional contacts across them, including 20,141 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for system administration outsourcing companies 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 September 29, 2026. Country and city lists for system administration outsourcing companies 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 Sep 29, 2026 How this list was built

9,762Companies

81,726Contacts tracked

20,141Verified emails

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The 25 largest system administration outsourcing companies worldwide

Ranked by team size

Top 25 of 9,762 company matches for system administration outsourcing companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Aforeserve.com LTD	Exact match	Noida, IndiaHQ recorded Sep 29, 2026	1,001-5,000	2,133 contacts →
	Exact match “Aforeserve delivers IT infrastructure services, field support, and managed operations for enterprises across India.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	TRT	Exact match	Singapore, GermanyHQ recorded Sep 29, 2026	n/a	2,037 contacts →
	Exact match “TRT is a Global Provider of IT Server, Storage and Networking Services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	CMS	Exact match	Meudon La Foret, FranceHQ recorded Sep 29, 2026	n/a	1,519 contacts →
	Exact match “Société d'infogérance” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Real JG Facilities	Exact match	Núcleo Bandeirante, BrazilHQ recorded Sep 29, 2026	5,001-10,000	812 contacts →
	Exact match “Real JG Facilities, empresa de terceirização.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Kaizen IT Services Pvt. LTD	Exact match	Kolkata, IndiaHQ recorded Sep 29, 2026	501-1,000	807 contacts →
	Exact match “Kaizen is a premier IT Services company headquartered in Kolkata and having its presence in Pan India with 750 Plus Touch Points.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	SES	Exact match	DenmarkHQ recorded Sep 29, 2026	n/a	618 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 · Sep 29, 2026 · View company records in RevenueBase
7	Ntiva, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 29, 2026	501-1,000	505 contacts →
	Exact match “At Ntiva, growing people (our employees, partners, and clients) is our mission.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Cmit Solutions	Exact match	Austin, TX, United StatesHQ recorded Sep 29, 2026	501-1,000	439 contacts →
	Exact match “CMIT Solutions is a premier IT solution company dedicated to delivering enterprise-class IT support to businesses across North America.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	SPX	Exact match	Riga, LatviaHQ recorded Sep 29, 2026	n/a	349 contacts →
	Exact match “SPX is IT outsourcing company ir Riga, Latvia.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Adlim-Terceirizacao EM Servicos	Exact match	Bezerros, BrazilHQ recorded Sep 29, 2026	1,001-5,000	334 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Noris Network AG	Exact match	Nürnberg, GermanyHQ recorded Sep 29, 2026	501-1,000	287 contacts →
	Exact match “Abgestimmt auf die Bedürfnisse mittelständischer Unternehmen bietet die noris network AG Managed IT-Services bis hin zum IT-Outsourcing in den Bereichen Internet Service Providing…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Sureworks Infotech PVT LTD - India	Exact match	Bengaluru, IndiaHQ recorded Sep 29, 2026	201-500	287 contacts →
	Exact match “Sureworks Infotech Private Limited (SIPL), a leading IT Solutions provider in India & Dubai was founded in 2009.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Systemantech INC	Exact match	Quezon City, PhilippinesHQ recorded Sep 29, 2026	201-500	281 contacts →
	Exact match “ABOUT US Systemantech Inc.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	A&o IT Group	Exact match	Bracknell, United KingdomHQ recorded Sep 29, 2026	201-500	251 contacts →
	Exact match “A&O IT Group, a global leader in managed IT services, brings over 50 years of expertise and operates in over 130 countries.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Poornam Info Vision Private Limited	Exact match	IndiaHQ recorded Sep 29, 2026	201-500	221 contacts →
	Exact match “Poornam Info Vision was founded in with the vision of making internet technology accessible to the average business owner.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	The AME Group	Exact match	Vincennes, IN, United StatesHQ recorded Sep 29, 2026	201-500	210 contacts →
	Exact match “Since 1985, The AME Group has assisted our clients by maximizing revenue, reducing expenses, and mitigating risks utilizing a portfolio of award-winning IT solutions, proven…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Mahr EDV Gmbh	Exact match	Berlin, GermanyHQ recorded Sep 29, 2026	201-500	187 contacts →
	Exact match “Since Mahr EDV has been synonymous with reliable IT support, excellent service, and the highest customer satisfaction.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	DSN Group	Exact match	Hoffman Estates, IL, United StatesHQ recorded Sep 29, 2026	n/a	182 contacts →
	Exact match “DSN Group provides cost effective solutions that enable companies to manage their IT/computer infrastructure better.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Global Tech Solutions	Exact match	Brooklyn, NY, United StatesHQ recorded Sep 29, 2026	51-200	181 contacts →
	Exact match “For over 10 Years, Global Tech Solutions (GTS) has been servicing and managing customer’s information technology needs, including hardware and software procurement, installation…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Qualcom	Exact match	Dublin 8, United KingdomHQ recorded Sep 29, 2026	51-200	181 contacts →
	Exact match “Qualcom provides ultra secure managed IT services using a security first ethos which maximises IT uptime and ensures that data is protected and accessible 24/7.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	U&d Square Solutions Pvt. LTD	Exact match	Pune, IndiaHQ recorded Sep 29, 2026	51-200	180 contacts →
	Exact match “U&D Square Solutions Pvt.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Bridgenet Solutions SDN BHD	Exact match	Kuala Lumpur, MalaysiaHQ recorded Sep 29, 2026	51-200	175 contacts →
	Exact match “Established in 2003, Bridgenet specializes as a top-notch Information and Technology Solutions Provider for businesses.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Hiwaay Information Services, INC	Exact match	Huntsville, AL, United StatesHQ recorded Sep 29, 2026	n/a	175 contacts →
	Exact match “HiWAAY's Network Services specializes in network design, business process analysis, information security and managed IT services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Ongc Systems	Exact match	Arundel, AustraliaHQ recorded Sep 29, 2026	n/a	166 contacts →
	Exact match “ONGC Systems provides businesses with comprehensive IT services, that automate and streamline operations, reduce risk and increase stability while lowering the cost of system…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Madata	Exact match	Chihuahua, MexicoHQ recorded Sep 29, 2026	51-200	164 contacts →
	Exact match “Madata is a comprehensive, yet scalable IT Management Services provider.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “system administration outsourcing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 9,762 system administration outsourcing companies worldwide

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System administration outsourcing companies worldwide at a glance

As of Sep 29, 2026

24.6%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

6,440

11-50

2,752

51-200

397

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 system administration outsourcing companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “system administration outsourcing companies” 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 20,141 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 September 29, 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.

System administration outsourcing companies by location

51 lists · largest first

Every System administration 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 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 “system administration outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many system administration outsourcing companies are there worldwide?

RevenueBase identified 9,762 company matches for system administration outsourcing companies worldwide as of September 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?

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

Which country has the most system administration outsourcing companies?

The United States leads with 2,809 companies, followed by Brazil (618) and the United Kingdom (567). Every system administration outsourcing companies list by country and city is linked on this page.

Which city has the most system administration outsourcing companies?

Sao Paulo leads with 132 company records, followed by London (127) and New York (64).

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 20,141 professional contacts with verified work emails tracked across these 9,762 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 September 29, 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.