Company lists · Data refreshed September 2026

Top 25 Private cloud companies worldwide

RevenueBase identified 908 private cloud companies worldwide as of September 2026 and tracks 13,978 professional contacts across them, including 4,450 with verified work emails and 1,712 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers private cloud 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 5, 2026. Country and city lists for private cloud 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 5, 2026 86% judged on-target in blind review
908Companies
13,978Contacts tracked
4,450Verified emails
1,712Mobile numbers
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The 25 largest private cloud companies worldwide

Ranked by team size
Top 25 of 908 private cloud companies worldwide, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to private cloud 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
1Partial evidenceAmsterdam, JapanHQ checked Sep 5, 2026501-1,000629 contacts →

Partial evidence

“Leaseweb is a leading Cloud services and Infrastructure-as-a-Service (IaaS) provider serving a worldwide portfolio of customers ranging from SMBs to Enterprises.”

Source: RevenueBase Database · checked Sep 5, 2026
2Indirect evidenceMumbai, IndiaHQ checked Sep 5, 20261,001-5,000528 contacts →

Indirect evidence

“About NTT Ltd.”

Source: RevenueBase Database · checked Sep 5, 2026
3Partial evidenceMilano, ItalyHQ checked Sep 5, 2026501-1,000460 contacts →

Partial evidence

“Noovle, within the TIM Group, aims to become the leader for Italian cloud services.”

Source: RevenueBase Database · checked Sep 5, 2026
4Partial evidenceRaleigh, NC, United StatesHQ checked Sep 5, 2026501-1,000456 contacts →

Partial evidence

“Unbiased Cloud.”

Source: RevenueBase Database · checked Sep 5, 2026
5Partial evidenceGlasgow, United KingdomHQ checked Sep 5, 2026201-500414 contacts →

Partial evidence

“Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.”

Source: RevenueBase Database · checked Sep 5, 2026
6Indirect evidenceGurgaon, IndiaHQ checked Sep 5, 2026201-500332 contacts →

Indirect evidence

“Ever since its inception in 1995, Progression has been at the forefront of technology, delivering outstanding IT infrastructure services to create significant business value for…”

Source: RevenueBase Database · checked Sep 5, 2026
7Partial evidenceMilan, ItalyHQ checked Sep 5, 2026201-500287 contacts →

Partial evidence

“WIIT S.p.A, a company listed on the Euronext Star Milan (“STAR”) segment (WIIT.MI), is a leader in the Cloud Computing market.”

Source: RevenueBase Database · checked Sep 5, 2026
8Partial evidenceAmersfoort, NetherlandsHQ checked Sep 5, 2026201-500234 contacts →

Partial evidence

“Met de Secure Managed Cloud Services van Solvinity ben je verzekerd van een veilige basis voor jouw IT.”

Source: RevenueBase Database · checked Sep 5, 2026
9Indirect evidenceSaint Denis, FranceHQ checked Sep 5, 2026501-1,000197 contacts →

Indirect evidence

“We are a true product of innovation.”

Source: RevenueBase Database · checked Sep 5, 2026
10Indirect evidenceAlpharetta, GA, United StatesHQ checked Sep 5, 2026501-1,000188 contacts →

Indirect evidence

“In the fast-paced business world, a strong digital presence isn’t just an advantage-it’s a necessity.”

Source: RevenueBase Database · checked Sep 5, 2026
11Indirect evidencePune, IndiaHQ checked Sep 5, 2026201-500179 contacts →

Indirect evidence

“SHRO SYSTEMS can help you opt for the right combination of platforms and applications and assist you in designing, building, managing an always-available IT Infrastructure.”

Source: RevenueBase Database · checked Sep 5, 2026
12Partial evidenceBellevue, WA, United StatesHQ checked Sep 5, 202651-200160 contacts →

Partial evidence

“CloudIQ is specialized in implementing Cloud Computing Solutions for growing and established enterprises.”

Source: RevenueBase Database · checked Sep 5, 2026
13Strong evidenceSan Jose, CA, United StatesHQ checked Sep 5, 202651-200149 contacts →

Strong evidence

“Platform9 is the leader in simplifying enterprise Private Clouds.”

Source: RevenueBase Database · checked Sep 5, 2026
14Strong evidenceSanta Clara, CA, United StatesHQ checked Sep 5, 2026201-500146 contacts →

Strong evidence

“UnitedLayer is the world’s leading private cloud solution provider, empowering enterprises with secure, high-performance infrastructure powered by the latest Agentic AI…”

Source: RevenueBase Database · checked Sep 5, 2026
15Strong evidenceSão Paulo, BrazilHQ checked Sep 5, 202651-200131 contacts →

Strong evidence

“A EVEO é reconhecida como a maior empresa de servidores dedicados do Brasil e a principal referência em private cloud do país.”

Source: RevenueBase Database · checked Sep 5, 2026
16Indirect evidenceRotterdam, NetherlandsHQ checked Sep 5, 202651-200130 contacts →

Indirect evidence

“Bij Intermax geloven we dat mensen zaken doen met mensen.”

Source: RevenueBase Database · checked Sep 5, 2026
17Partial evidencePittsburgh, PA, United StatesHQ checked Sep 5, 202651-200126 contacts →

Partial evidence

“Nuvolat® brings together leading experts from the world of cloud, datacenter and IT services.”

Source: RevenueBase Database · checked Sep 5, 2026
18Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 5, 202651-200116 contacts →

Partial evidence

“OTAVA is your secure & compliant multi-cloud expert.”

Source: RevenueBase Database · checked Sep 5, 2026
19Indirect evidenceDes Moines, IA, United StatesHQ checked Sep 5, 2026201-500109 contacts →

Indirect evidence

“Connectria is now Lightedge!”

Source: RevenueBase Database · checked Sep 5, 2026
20Partial evidenceSahibzada Ajit Singh Nagar, IndiaHQ checked Sep 5, 202651-200109 contacts →

Partial evidence

“Azalio Technologies is a specialized Cloud, Automation, and OSS/BSS Solutions company with deep roots in Telecom.”

Source: RevenueBase Database · checked Sep 5, 2026
21Indirect evidenceDallas, TX, United StatesHQ checked Sep 5, 202651-20098 contacts →

Indirect evidence

“DartPoints keeps critical technology running close to the communities we serve.”

Source: RevenueBase Database · checked Sep 5, 2026
22Strong evidenceNeuilly-sur-seine, FranceHQ checked Sep 5, 202651-20085 contacts →

Strong evidence

“Exaion supports organizations in their digital transformation with trusted private cloud infrastructure for AI, high-performance computing and data-intensive workloads.”

Source: RevenueBase Database · checked Sep 5, 2026
23Indirect evidencePune, IndiaHQ checked Sep 5, 20261,001-5,00085 contacts →

Indirect evidence

“11:11 Systems is a managed infrastructure solutions provider that empowers customers to modernize, protect, and manage mission-critical applications and data, leveraging 11:11’s…”

Source: RevenueBase Database · checked Sep 5, 2026
24Indirect evidenceHerndon, VA, United StatesHQ checked Sep 5, 2026201-50084 contacts →

Indirect evidence

“ViON Corporation has a singular mission: helping customers drive the success of their own mission through smarter IT investments.”

Source: RevenueBase Database · checked Sep 5, 2026
25Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 202611-5080 contacts →

Indirect evidence

“Cyber City inc.”

Source: RevenueBase Database · checked Sep 5, 2026

Showing 25 of 908 private cloud companies worldwide

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Private cloud companies worldwide at a glance

As of Sep 5, 2026
31.8%Verified-email coverage
12.2%Mobile-number coverage
15.4Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · London
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
378
11-50
354
51-200
124
201-500
30
501-1,000
15
1,001-5,000
5
10001+
1

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 private cloud 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
12 countries, largest first: the United States, India, Brazil, the United Kingdom, Germany, France, the Netherlands, Canada, Australia, Italy and 2 more. Country and city lists for private cloud companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “private cloud 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 private cloud 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 private cloud 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, 4,450 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 between September 5, 2026 and 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.

Private cloud companies by location

12 lists · largest first

Every Private cloud companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 private cloud 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 private cloud companies are there worldwide?

RevenueBase identified 908 private cloud 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?

Leaseweb, headquartered in Cx, tops this list with the largest team on record.

Which country has the most private cloud companies?

The United States leads with 260 companies, followed by India (145) and Brazil (91). Every private cloud companies list by country and city is linked on this page.

Which city has the most private cloud companies?

London leads with 23 headquartered companies, followed by Sao Paulo (23) and Pune (15).

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 4,450 verified decision-maker contacts tracked across these 908 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 5, 2026 and 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.