Company lists · Data refreshed November 2026

Top 25 IT infrastructure support companies worldwide

RevenueBase identified 47,911 company matches for IT infrastructure support companies worldwide as of November 2026 and tracks 596,465 professional contacts across them, including 173,390 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for IT infrastructure support 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 November 6, 2026. Country and city lists for IT infrastructure support 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 Nov 6, 2026 How this list was built
47,911Companies
596,465Contacts tracked
173,390Verified emails
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The 25 largest IT infrastructure support companies worldwide

Ranked by team size
Top 25 of 47,911 company matches for IT infrastructure support companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchNew York, NY, United StatesHQ recorded Nov 6, 202610001+47,955 contacts →

Exact match

“We have the world’s best talent that design, run, and manage the most advanced and reliable technology infrastructure each day.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchChennai, IndiaHQ recorded Nov 6, 20261,001-5,0007,202 contacts →

Exact match

“A Fortune India 500 company, Sify Technologies is India’s most comprehensive ICT service & solution provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBirmingham, FranceHQ recorded Nov 6, 20265,001-10,0005,859 contacts →

Exact match

“SCC unleashes the potential of IT for global businesses, as one of Europe’s largest independent IT groups.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBangalore, IndiaHQ recorded Nov 6, 20265,001-10,0004,449 contacts →

Exact match

“CMS IT is a leading India-focused, tier-1 preferred IT provider with a legacy of four decades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261,001-5,0004,274 contacts →

Exact match

“At Presidio, speed and quality meet technology and innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchPlano, United StatesHQ recorded Nov 6, 20261,001-5,0004,014 contacts →

Exact match

“Black Box is a global leader in digital infrastructure solutions, delivering network and system integration, managed services, and technology products to Fortune 100 and top…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMarlow, United KingdomHQ recorded Nov 6, 20261,001-5,0003,073 contacts →

Exact match

“Softcat is a leading provider of IT infrastructure to corporate and public sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNew Delhi, IndiaHQ recorded Nov 6, 20261,001-5,0003,044 contacts →

Exact match

“Think IT, Think Sysnet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchHebron, KY, PalestineHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
10Exact matchSingapore, GermanyHQ recorded Nov 6, 2026n/a2,153 contacts →

Exact match

“TRT is a Global Provider of IT Server, Storage and Networking Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNoida, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
12Exact matchRockville, MD, United StatesHQ recorded Nov 6, 2026n/a1,941 contacts →

Exact match

“Established in 1995, GURU is an IT managed service provider that specializes in infrastructure support, systems integration, data architecture, data hosting, and cloud services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHerndon, VA, United StatesHQ recorded Nov 6, 20261,001-5,0001,901 contacts →

Exact match

“ePlus is a customer-first, services-led, results-driven and trusted industry leader that helps organizations secure, modernize, optimize, and scale every aspect of their IT…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMeudon La Foret, FranceHQ recorded Nov 6, 2026n/a1,569 contacts →

Exact match

“Société d'infogérance”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNoida, IndiaHQ recorded Nov 6, 20261,001-5,0001,517 contacts →

Exact match

“Since 2001, Cyfuture has been a trusted name in IT infrastructure and futuristic digital services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBallerup, DenmarkHQ recorded Nov 6, 20261,001-5,0001,482 contacts →

Exact match

“We’re here to provide digital infrastructure that helps companies and institutions steer a straight course.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNashik, IndiaHQ recorded Nov 6, 2026501-1,0001,447 contacts →

Exact match

“ESDS Software Solution Limited is India's End-to-End AI Ecosystem Provider, delivering a comprehensive portfolio spanning Swaraj Cloud, Colocation, GPU-as-a-Service, AI Stack…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLenexa, CA, United StatesHQ recorded Nov 6, 20261,001-5,0001,356 contacts →

Exact match

“Wachter is on the cutting-edge of technology and infrastructure installation and has been since 1930.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSt. Cloud, MN, United StatesHQ recorded Nov 6, 20261,001-5,0001,269 contacts →

Exact match

“At Marco, we're all about making technology work for you (and not the other way around).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCalgary, CO, CanadaHQ recorded Nov 6, 20261,001-5,0001,245 contacts →

Exact match

“At Long View, we believe technology should empower people, strengthen organizations, and drive meaningful outcomes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMakati City, PhilippinesHQ recorded Nov 6, 2026501-1,0001,216 contacts →

Exact match

“Trends empowers our clients with technology-enabled business services allowing them to transcend.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDki Jakarta, IndonesiaHQ recorded Nov 6, 2026501-1,0001,198 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBrea, GA, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,091 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchFort Washington, PA, United StatesHQ recorded Nov 6, 2026501-1,0001,082 contacts →

Exact match

“IT Solutions Technology Partners (ITS) is a trusted managed services provider with 30+ years of experience helping organizations leverage technology as a competitive advantage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 47,911 IT infrastructure support companies worldwide

See the full list, filter by size, metro and specialty, and access 173,390 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT infrastructure support companies worldwide at a glance

As of Nov 6, 2026
29.1%Verified-email coverage
12.4Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
28,416
11-50
14,503
51-200
3,285
201-500
694
501-1,000
214
1,001-5,000
151
5,001-10,000
19
10001+
30

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 infrastructure support companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “IT infrastructure support 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 173,390 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 6, 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 infrastructure support companies by location

254 lists · largest first

Every IT infrastructure support 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 “IT infrastructure support companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT infrastructure support companies are there worldwide?

RevenueBase identified 47,911 company matches for IT infrastructure support companies 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?

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

Which country has the most IT infrastructure support companies?

The United States leads with 12,205 companies, followed by the United Kingdom (3,553) and India (3,322). Every IT infrastructure support companies list by country and city is linked on this page.

Which city has the most IT infrastructure support companies?

London leads with 776 company records, followed by Sao Paulo (543) and Bangalore (356).

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 173,390 professional contacts with verified work emails tracked across these 47,911 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 6, 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.