Company lists · Data refreshed September 2026
Top 25 Cdn and security companies worldwide
RevenueBase identified 370 cdn and security companies worldwide as of September 2026 and tracks 42,262 professional contacts across them, including 12,702 with verified work emails. The United States is the largest market and Singapore the largest hub.
This list covers cdn and security 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 27, 2026. Country and city lists for cdn and security 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.
The 25 largest cdn and security companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 22,745 contacts → | ||||
Partial 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 Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 11,825 contacts → | ||||
Indirect evidence “At Akamai, we make life better for billions of people, billions of times a day.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,456 contacts → | ||||
Partial evidence “Radware® is a global leader in application security and delivery solutions for multi-cloud environments.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 566 contacts → | ||||
Partial evidence “Comodo - Protecting Your Digital World At Comodo, we are dedicated to safeguarding your digital property with Comodo Website Security.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 297 contacts → | ||||
Indirect evidence “As the APAC leading network with global PoPs and more than 20 years of technology accumulation, CDNetworks offers fully integrated cloud and edge computing solutions to build Edge…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 285 contacts → | ||||
Partial evidence “NSFOCUS is an iconic internet and application security company with over 20 years of proven industry experience.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 225 contacts → | ||||
Indirect evidence “EdgeNext is the largest edge cloud platform that follows a “edge cloud + localized cloud platforms" strategy in the emerging market.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 191 contacts → | ||||
Indirect evidence “Limelight acquired Edgecast in June 2022, rebranding as Edgio.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 132 contacts → | ||||
Indirect evidence “Established in 2008 and headquartered in Singapore, Nexusguard is a global leader in DDoS protection.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 91 contacts → | ||||
Partial evidence “We are Corero Network Security (LSE: CNS)(OTCQX: DDOSF), and for over a decade, our customers' needs have sculpted our SmartWall ONE DDoS protection platform.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 87 contacts → | ||||
Partial evidence “Join the Global Leader in Website Security – SiteLock!” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 84 contacts → | ||||
Partial evidence “VNETWORK is a Leading Cyber Security & Rescue Center in Vietnam and Asia, specializing in IT infrastructure, content delivery networks, and cyber security.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 80 contacts → | ||||
Indirect evidence “A Blockbit é uma líder em soluções de cibersegurança, dedicada a proteger organizações de todos os tamanhos contra ameaças, vulnerabilidades e ataques, sejam internos ou externos…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 74 contacts → | ||||
Strong evidence “Medianova provides global CDN and Cloud security solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 69 contacts → | ||||
Indirect evidence “Link11 is a leading European manufacturer of cloud-based cybersecurity solutions that helps businesses and public authorities in critical infrastructure stay online, no matter…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 62 contacts → | ||||
Indirect evidence “Omicron’s mission is to build products that make the internet better for all.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 57 contacts → | ||||
Indirect evidence “We secure the online experience so you can focus on growing your business.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 56 contacts → | ||||
Indirect evidence “TOFFS Tech is the Asia Pacific leader in Secure Multi-Content Delivery Network (MCDN) services, making the Internet secure for our customers.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 53 contacts → | ||||
Indirect evidence “Edgecast has been built and finely tuned for over 15+ years, delivering mission-critical content for top companies in every industry to every corner of the globe.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 50 contacts → | ||||
Indirect evidence “At AmbiSure Technologies, we believe cybersecurity is no longer just a technology function-it is a business resilience imperative.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 48 contacts → | ||||
Indirect evidence “StormWall is a global cybersecurity provider focused on safeguarding websites, networks, services, and IT infrastructures of any size from modern DDoS attacks.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 48 contacts → | ||||
Indirect evidence “Conversant Solutions is dedicated to unleash the full potential of the internet.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 46 contacts → | ||||
Partial evidence “WEDOS - WE DO Security WEDOS.zone Global Anycast DNS Service.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 45 contacts → | ||||
Partial evidence “Haltdos promises an intelligent WAF & DDoS mitigation service with multi-layered security to online businesses requiring zero management.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 43 contacts → | ||||
Indirect evidence “At Borwood, we believe that seamless, always-on communication is the foundation of global business success.” Source: RevenueBase Database · checked Sep 27, 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: cdn and security companies. 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 cdn and security companies.
- Partial evidence
- Its own public description names part of cdn and security companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cdn and security companies. 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 370 cdn and security companies worldwide
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Cdn and security companies worldwide at a glance
As of Sep 27, 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 cdn and security 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
- Every country. Country and city lists for cdn and security companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “cdn and security 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 cdn and security 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 cdn and security 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, 12,702 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 27, 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.
Cdn and security companies by location
1 lists · largest firstEvery Cdn and security 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 cdn and security 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 cdn and security companies are there worldwide?
RevenueBase identified 370 cdn and security 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?
Centurylink, headquartered in Monroe, tops this list with the largest team on record.
Which country has the most cdn and security companies?
The United States leads with 67 companies. Every cdn and security companies list by country and city is linked on this page.
Which city has the most cdn and security companies?
Singapore leads with 12 headquartered companies, followed by Jing (8) and London (8).
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 12,702 verified decision-maker contacts tracked across these 370 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 27, 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.