Company lists · Data refreshed September 2026
Top 25 Cyber threat response companies worldwide
RevenueBase identified 21,108 cyber threat response companies worldwide as of September 2026 and tracks 397,380 professional contacts across them, including 140,709 with verified work emails. The United States is the largest market and London the largest hub.
This list covers cyber threat response 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 19, 2026. Country and city lists for cyber threat response 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 cyber threat response companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 18,431 contacts → | ||||
Indirect evidence “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 14,289 contacts → | ||||
Indirect evidence “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 12,771 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 11,169 contacts → | ||||
Indirect evidence “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 4,942 contacts → | ||||
Indirect evidence “We’re a global cybersecurity leader, helping to make the world safe for exchanging digital information.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 4,925 contacts → | ||||
Indirect evidence “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 4,032 contacts → | ||||
Indirect evidence “Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 3,673 contacts → | ||||
Indirect evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 3,649 contacts → | ||||
Partial evidence “We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3,447 contacts → | ||||
Partial evidence “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3,145 contacts → | ||||
Indirect evidence “Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 3,052 contacts → | ||||
Indirect evidence “SentinelOne is the world's leading AI-powered cybersecurity platform.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2,822 contacts → | ||||
Partial evidence “Rapid7, Inc.(NASDAQ: RPD) is a global leader in AI-powered managed cybersecurity operations, trusted to advance organizations’ cyber resilience.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2,523 contacts → | ||||
Partial evidence “NIL is a globally recognized provider of advanced data center, network, cloud, cyber security solutions as well as services for business and industry environments, state…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2,355 contacts → | ||||
Indirect evidence “Darktrace is a global leader in AI cybersecurity, providing the essential cybersecurity platform to secure organizations today and for an ever-changing future.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2,222 contacts → | ||||
Partial evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2,172 contacts → | ||||
Strong evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2,157 contacts → | ||||
Partial evidence “Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,903 contacts → | ||||
Partial evidence “N-able’s mission is to protect businesses against evolving cyberthreats with a unified cyber resiliency platform to manage, secure, and recover.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,773 contacts → | ||||
Indirect evidence “Inspira Enterprise is a global Cybersecurity & Data Analytics & AI services provider with a presence in North America, ASEAN, Middle East, India, and Africa regions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,648 contacts → | ||||
Indirect evidence “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,510 contacts → | ||||
Indirect evidence “Quick Heal Technologies Limited is one of the leading providers of IT Security and Data Protection Solutions with a strong footprint in India and an evolving global presence.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,378 contacts → | ||||
Indirect evidence “We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,297 contacts → | ||||
Indirect evidence “Sangfor Technologies is a global leader in cybersecurity, cloud computing, and IT infrastructure, providing fully integrated and AI-driven solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1,285 contacts → | ||||
Indirect evidence “ReliaQuest exists to Make Security Possible.” Source: RevenueBase Database · checked Sep 19, 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: cyber threat response 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 cyber threat response companies.
- Partial evidence
- Its own public description names part of cyber threat response companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cyber threat response 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 21,108 cyber threat response companies worldwide
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Cyber threat response companies worldwide at a glance
As of Sep 19, 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 cyber threat response 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 cyber threat response companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “cyber threat response 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 cyber threat response 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 cyber threat response 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, 140,709 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 19, 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.
Cyber threat response companies by location
123 lists · largest firstEvery Cyber threat response companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Cyber threat response companies based in the United States5,540
- Cyber threat response companies based in India1,678
- Cyber threat response companies based in the United Kingdom1,290
- Cyber threat response companies based in Canada685
- Cyber threat response companies based in Australia665
- Cyber threat response companies based in France664
- Cyber threat response companies based in Brazil561
- Cyber threat response companies based in Germany472
- Cyber threat response companies based in Spain347
- Cyber threat response companies based in the Netherlands344
- Cyber threat response companies based in the United Arab Emirates334
- Cyber threat response companies based in Italy300
- Cyber threat response companies based in Israel250
- Cyber threat response companies based in Mexico246
- Cyber threat response companies based in Türkiye225
- Cyber threat response companies based in South Africa221
- Cyber threat response companies based in Switzerland184
- Cyber threat response companies based in Belgium159
- Cyber threat response companies based in Saudi Arabia159
- Cyber threat response companies based in Singapore159
- Cyber threat response companies based in Pakistan157
- Cyber threat response companies based in Chile149
- Cyber threat response companies based in Colombia138
- Cyber threat response companies based in Poland133
- Cyber threat response companies based in Sweden130
- Cyber threat response companies based in Nigeria120
- Cyber threat response companies based in Indonesia116
- Cyber threat response companies based in Argentina109
- Cyber threat response companies based in Malaysia83
- Cyber threat response companies based in Austria78
- Cyber threat response companies based in Kenya74
- Cyber threat response companies based in New Zealand74
- Cyber threat response companies based in Denmark73
- Cyber threat response companies based in Romania69
- Cyber threat response companies based in Ireland64
- Cyber threat response companies based in Peru61
- Cyber threat response companies based in Portugal61
- Cyber threat response companies based in Egypt60
- Cyber threat response companies based in Japan58
- Cyber threat response companies based in Finland56
- Cyber threat response companies based in Greece55
- Cyber threat response companies based in the Philippines55
- Cyber threat response companies based in Ecuador52
- Cyber threat response companies based in Thailand49
- Cyber threat response companies based in Sri Lanka45
- Cyber threat response companies based in Ukraine45
- Cyber threat response companies based in Hungary42
- Cyber threat response companies based in Bulgaria38
- Cyber threat response companies based in Qatar36
- Cyber threat response companies based in Estonia35
- Cyber threat response companies based in the Dominican Republic35
- Cyber threat response companies based in Hong Kong34
- Cyber threat response companies based in Jordan33
- Cyber threat response companies based in Luxembourg32
- Cyber threat response companies based in Slovakia32
- Cyber threat response companies based in Norway29
- Cyber threat response companies based in South Korea27
- Cyber threat response companies based in Taiwan27
- Cyber threat response companies based in Cyprus25
Cities
- Cyber threat response companies based in London, United Kingdom537
- Cyber threat response companies based in Sao Paulo, Brazil199
- Cyber threat response companies based in New York, United States161
- Cyber threat response companies based in Toronto, Canada148
- Cyber threat response companies based in Melbourne, Australia137
- Cyber threat response companies based in Sydney, Australia134
- Cyber threat response companies based in Pune, India133
- Cyber threat response companies based in Hyderabad, India125
- Cyber threat response companies based in Washington, United States113
- Cyber threat response companies based in Mumbai, India111
- Cyber threat response companies based in Bangalore, India108
- Cyber threat response companies based in Houston, United States102
- Cyber threat response companies based in Atlanta, United States101
- Cyber threat response companies based in New Delhi, India101
- Cyber threat response companies based in Austin, United States97
- Cyber threat response companies based in Dallas, United States91
- Cyber threat response companies based in Miami, United States90
- Cyber threat response companies based in Chennai, India82
- Cyber threat response companies based in Chicago, United States82
- Cyber threat response companies based in Montreal, Canada79
- Cyber threat response companies based in San Francisco, United States78
- Cyber threat response companies based in Tampa, United States78
- Cyber threat response companies based in Bengaluru, India77
- Cyber threat response companies based in Noida, India75
- Cyber threat response companies based in Ahmedabad, India72
- Cyber threat response companies based in Arlington, United States61
- Cyber threat response companies based in Brisbane, Australia59
- Cyber threat response companies based in Calgary, Canada59
- Cyber threat response companies based in Ottawa, Canada58
- Cyber threat response companies based in Columbia, United States57
- Cyber threat response companies based in Boston, United States54
- Cyber threat response companies based in Los Angeles, United States51
- Cyber threat response companies based in San Diego, United States49
- Cyber threat response companies based in Denver, United States48
- Cyber threat response companies based in Manchester, United Kingdom48
- Cyber threat response companies based in Las Vegas, United States47
- Cyber threat response companies based in Charlotte, United States43
- Cyber threat response companies based in Gurgaon, India43
- Cyber threat response companies based in Vancouver, Canada42
- Cyber threat response companies based in Reston, United States41
- Cyber threat response companies based in Karachi, Pakistan40
- Cyber threat response companies based in Orlando, United States40
- Cyber threat response companies based in San Antonio, United States40
- Cyber threat response companies based in Rio De Janeiro, Brazil39
- Cyber threat response companies based in Phoenix, United States38
- Cyber threat response companies based in Wilmington, United States37
- Cyber threat response companies based in Baltimore, United States36
- Cyber threat response companies based in Sheridan, United States36
- Cyber threat response companies based in Mclean, United States35
- Cyber threat response companies based in Seattle, United States35
- Cyber threat response companies based in Alexandria, United States34
- Cyber threat response companies based in Gurugram, India34
- Cyber threat response companies based in Huntsville, United States34
- Cyber threat response companies based in Canberra, Australia33
- Cyber threat response companies based in Fairfax, United States33
- Cyber threat response companies based in Pittsburgh, United States32
- Cyber threat response companies based in San Jose, United States31
- Cyber threat response companies based in Ashburn, United States29
- Cyber threat response companies based in Raleigh, United States29
- Cyber threat response companies based in Scottsdale, United States28
- Cyber threat response companies based in Dover, United States27
- Cyber threat response companies based in Plano, United States27
- Cyber threat response companies based in Belo Horizonte, Brazil26
- Cyber threat response companies based in Birmingham, United Kingdom26
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 cyber threat response 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 cyber threat response companies are there worldwide?
RevenueBase identified 21,108 cyber threat response 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?
Palo Alto Networks, headquartered in Santa Clara, tops this list with the largest team on record.
Which country has the most cyber threat response companies?
The United States leads with 5,540 companies, followed by India (1,678) and the United Kingdom (1,290). Every cyber threat response companies list by country and city is linked on this page.
Which city has the most cyber threat response companies?
London leads with 543 headquartered companies, followed by Paris (213) and Dubai (209).
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 140,709 verified decision-maker contacts tracked across these 21,108 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 19, 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.