Company lists · Data refreshed September 2026
Top 25 Openstack providers worldwide
RevenueBase identified 2,292 openstack providers worldwide as of September 2026 and tracks 35,174 professional contacts across them, including 7,922 with verified work emails. The United States is the largest market and London the largest hub.
This list covers openstack 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 20, 2026. Country and city lists for openstack 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.
The 25 largest openstack providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,036 contacts → | ||||
Indirect evidence “OVHcloud is a global player and the leading European cloud provider operating over servers within 43 data centers across 4 continents to reach 1,6 million customers in over 140…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,541 contacts → | ||||
Indirect evidence “At HashiCorp, we believe infrastructure enables innovation, and we are helping organizations to operate that infrastructure in the cloud.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 629 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 528 contacts → | ||||
Indirect evidence “About NTT Ltd.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 460 contacts → | ||||
Indirect evidence “Noovle, within the TIM Group, aims to become the leader for Italian cloud services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 456 contacts → | ||||
Indirect evidence “Unbiased Cloud.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 356 contacts → | ||||
Indirect evidence “Established in 2012 and headquartered in Shanghai, UCloud is a leading neutral and secure computing service platform.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 348 contacts → | ||||
Indirect evidence “Vultr is on a mission to make high-performance cloud infrastructure easy to use, affordable, and locally accessible for enterprises and AI innovators around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 344 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 334 contacts → | ||||
Indirect evidence “Internap Holding LLC (INAP) is a global provider of performance-driven, secure hybrid infrastructure solutions, enabling technology leaders to simplify their cloud journeys and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 332 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 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 287 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 227 contacts → | ||||
Indirect evidence “We're always on so you're always there.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 217 contacts → | ||||
Indirect evidence “CloudFerro (CF) provides innovative cloud services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 205 contacts → | ||||
Indirect evidence “Somos uma empresa especializada em serviços de Cloud Computing e Dados que tem se destacado no mercado de Tecnologia por sua liderança e caráter inovador.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 199 contacts → | ||||
Indirect evidence “As your next gen cloud partner, we enable organizations to harness the full potential of the cloud through comprehensive cloud solutions and strategic consultancy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 197 contacts → | ||||
Indirect evidence “We are a true product of innovation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 188 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 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 179 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 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 168 contacts → | ||||
Indirect evidence “365 Data Centers delivers a modern, AI-enabled intelligent infrastructure platform for mid‑market and enterprise organizations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 160 contacts → | ||||
Indirect evidence “CloudIQ is specialized in implementing Cloud Computing Solutions for growing and established enterprises.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 159 contacts → | ||||
Indirect evidence “In this era of ubiquitous computing the defining, delivering, managing, and scaling your digital services in a reliable and cost effectively has never been more complicated.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 149 contacts → | ||||
Indirect evidence “Platform9 is the leader in simplifying enterprise Private Clouds.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 146 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 144 contacts → | ||||
Indirect evidence “CloudZone helps you maximize your cloud with minimal effort on your part.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: openstack 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 openstack providers.
- Partial evidence
- Its own public description names part of openstack providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name openstack 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 2,292 openstack providers worldwide
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Openstack providers worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 openstack 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
- Every country. Country and city lists for openstack providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “openstack 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 openstack 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 openstack 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, 7,922 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 20, 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.
Openstack providers by location
16 lists · largest firstEvery Openstack providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Openstack providers based in the United States395
- Openstack providers based in India212
- Openstack providers based in Brazil128
- Openstack providers based in the United Kingdom104
- Openstack providers based in Germany90
- Openstack providers based in France87
- Openstack providers based in the Netherlands79
- Openstack providers based in Canada61
- Openstack providers based in Australia46
- Openstack providers based in Spain35
- Openstack providers based in Italy34
- Openstack providers based in Türkiye30
- Openstack providers based in Israel29
- Openstack providers based in Poland29
- Openstack providers based in Switzerland27
- Openstack providers based in Belgium25
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 openstack 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 openstack providers are there worldwide?
RevenueBase identified 2,292 openstack 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?
Ovhcloud, headquartered in Roubaix, tops this list with the largest team on record.
Which country has the most openstack providers?
The United States leads with 395 companies, followed by India (212) and Brazil (128). Every openstack providers list by country and city is linked on this page.
Which city has the most openstack providers?
London leads with 42 headquartered companies, followed by Sao Paulo (38) and Mumbai (22).
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 7,922 verified decision-maker contacts tracked across these 2,292 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 20, 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.