Company lists · Data refreshed August 2026
Top 25 Cloud connectivity providers worldwide
RevenueBase identified 359 cloud connectivity providers worldwide as of August 2026 and tracks 52,739 professional contacts across them, including 14,954 with verified work emails and 19,403 with mobile numbers. The United States is the largest market and London the largest hub.
This list covers cloud connectivity 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 August 31, 2026. Country and city lists for cloud connectivity 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 cloud connectivity providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 22,865 contacts → | ||||
Strong evidence “CenturyLink (NYSE: CTL) is a technology leader delivering hybrid networking, cloud connectivity, and security solutions to customers around the world.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 2 | 15,743 contacts → | ||||
Indirect evidence “Lumen is the trusted network for the AI-powered world, connecting people, data, and applications through one of the world’s most expansive fiber networks.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,970 contacts → | ||||
Indirect evidence “GTT is a leading networking and security as a service provider for multinational organizations, simply and securely connecting people and machines to data and applications –…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 4 | 661 contacts → | ||||
Indirect evidence “Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 5 | 517 contacts → | ||||
Indirect evidence “Zen is a B Corp certified telecommunications and technology service provider in the UK.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 6 | 485 contacts → | ||||
Partial evidence “As a pioneer in software-defined networking, Masergy is a leading secure cloud networking platform for global businesses.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 7 | 472 contacts → | ||||
Indirect evidence “We free IT leaders to do what matters.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 8 | 435 contacts → | ||||
Indirect evidence “Infrastructure should be fast and simple to deploy.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 9 | 423 contacts → | ||||
Partial evidence “Fusion Connect, an industry leading cloud communications provider, removes complexity so customers can focus on running their business.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 10 | 361 contacts → | ||||
Indirect evidence “ENA by Zayo delivers innovative technology solutions supported by exceptional customer care.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 11 | 346 contacts → | ||||
Indirect evidence “Founded by Sandeep Donde in Microscan specializes in all-fiber networking services, offering 100% uptime and empowering SMEs through digitization.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 12 | 267 contacts → | ||||
Partial evidence “CommandLink is the only global infrastructure provider that unifies connectivity, security, voice, and AI into one intelligent platform-backed by world-class support.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 13 | 244 contacts → | ||||
Indirect evidence “For teams who want secure, private networks without weeks of setup and configuration, Tailscale makes it easy.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 14 | 241 contacts → | ||||
Partial evidence “Citynet is a trusted technology partner delivering advanced IT, cybersecurity, and connectivity solutions to organizations across the country.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 15 | 202 contacts → | ||||
Partial evidence “Established in 2006, FluidOne is an award-winning provider of secure Connected Cloud Solutions with a £110m turnover and consistently one of the highest Net Promoter Scores (NPS)…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 16 | 202 contacts → | ||||
Indirect evidence “Console Connect is PCCW Global's integrated on-demand platform and automated network for intelligent data movement.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 17 | 201 contacts → | ||||
Indirect evidence “A Um Telecom é empresa de soluções em infraestrutura de TI e conectividade que possui mais de km de rede de fibra óptica e atende aos segmentos corporativo, setor público…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 18 | 185 contacts → | ||||
Indirect evidence “For over 30 years, Telesystem has been a trusted technology partner for businesses across the country, delivering Managed Security, Networking, and Communication solutions backed…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 19 | 176 contacts → | ||||
Indirect evidence “OpenVPN® solutions help organizations to easily create secure, virtualized, reliable networks that ensure secure communications between on-premise applications, SaaS applications…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 20 | 133 contacts → | ||||
Partial evidence “Silver Peak helps enterprises and service providers flexibly and securely connect users to applications via the most cost-effective source of connectivity available.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 21 | 129 contacts → | ||||
Partial evidence “Infynix Communications Ltd is a technology-driven enterprise connectivity and digital infrastructure solutions provider, enabling businesses to build secure, high-performance, and…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 22 | 112 contacts → | ||||
Indirect evidence “Welcome to the home of NTT Ltd.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 23 | 107 contacts → | ||||
Partial evidence “Somos pioneros en el mercado regional de Cloud enfocados en ofrecer soluciones de punto-a-punto de nubes privadas, públicas, hibridas y on-premise.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 24 | 106 contacts → | ||||
Partial evidence “Cytracom delivers infrastructure software purpose-built to empower managed service providers (MSPs) and IT professionals (ITSPs) with cloud solutions that connect and secure both…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 25 | 98 contacts → | ||||
Indirect evidence “Globalgig delivers hyperconnectivity for enterprise offices and mobile employees worldwide.” Source: RevenueBase Database · checked Aug 31, 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: cloud connectivity 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 cloud connectivity providers.
- Partial evidence
- Its own public description names part of cloud connectivity providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cloud connectivity 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 359 cloud connectivity providers worldwide
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Cloud connectivity providers worldwide at a glance
As of Aug 31, 2026Companies by employee count
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 cloud connectivity 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
- 5 countries, largest first: the United States, Brazil, the United Kingdom, India, the Netherlands. Country and city lists for cloud connectivity providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “cloud connectivity 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 cloud connectivity 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 cloud connectivity 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, 14,954 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 August 31, 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.
Cloud connectivity providers by location
5 lists · largest firstEvery Cloud connectivity providers 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 cloud connectivity 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 cloud connectivity providers are there worldwide?
RevenueBase identified 359 cloud connectivity providers worldwide as of August 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?
Centurylink, headquartered in Monroe, tops this list with the largest team on record.
Which country has the most cloud connectivity providers?
The United States leads with 137 companies, followed by Brazil (69) and the United Kingdom (68). Every cloud connectivity providers list by country and city is linked on this page.
Which city has the most cloud connectivity providers?
London leads with 20 headquartered companies, followed by Mumbai (8) and Sao Paulo (7).
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 14,954 verified decision-maker contacts tracked across these 359 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 August 31, 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.