Company lists · Data refreshed September 2026
Top 25 Security and data services worldwide
RevenueBase identified 25,699 security and data services worldwide as of September 2026 and tracks 389,523 professional contacts across them, including 132,893 with verified work emails. The United States is the largest market and London the largest hub.
This list covers security and data services 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 21, 2026. Country and city lists for security and data services 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 security and data services 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 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 14,289 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 12,771 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 11,169 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 6,262 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 21, 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 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 3,206 contacts → | ||||
Indirect evidence “At Quest Software, we help organizations build modern, trusted foundations for AI.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 2,715 contacts → | ||||
Strong evidence “Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2,523 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 2,222 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2,172 contacts → | ||||
Indirect evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2,157 contacts → | ||||
Indirect evidence “Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 1,773 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1,648 contacts → | ||||
Partial evidence “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1,452 contacts → | ||||
Indirect evidence “Atuamos no core de empresas líderes em seus segmentos, onde tecnologia, estratégia e operação se encontram.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,345 contacts → | ||||
Indirect evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,252 contacts → | ||||
Partial evidence “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,232 contacts → | ||||
Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,217 contacts → | ||||
Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,113 contacts → | ||||
Indirect evidence “Committed to delivering tailored solutions and unmatched experiences, Centric Consulting is an international business and technology consulting firm that combines the benefits of…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1,037 contacts → | ||||
Indirect evidence “Synoptek is a leading global managed services provider and technology consulting firm that delivers transformative business results.” Source: RevenueBase Database · checked Sep 21, 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: security and data services. 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 security and data services.
- Partial evidence
- Its own public description names part of security and data services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security and data services. 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 25,699 security and data services worldwide
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Security and data services worldwide at a glance
As of Sep 21, 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 security and data services, 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 security and data services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “security and data services”. 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 security and data services), 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 security and data services, 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, 132,893 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 21, 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.
Security and data services by location
150 lists · largest firstEvery Security and data services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security and data services based in the United States6,779
- Security and data services based in India2,037
- Security and data services based in the United Kingdom1,475
- Security and data services based in Brazil894
- Security and data services based in Canada874
- Security and data services based in Australia813
- Security and data services based in France809
- Security and data services based in Germany736
- Security and data services based in the United Arab Emirates436
- Security and data services based in Spain427
- Security and data services based in Italy391
- Security and data services based in the Netherlands368
- Security and data services based in Mexico299
- Security and data services based in Türkiye270
- Security and data services based in South Africa265
- Security and data services based in Switzerland231
- Security and data services based in Pakistan224
- Security and data services based in Israel208
- Security and data services based in Belgium187
- Security and data services based in Saudi Arabia184
- Security and data services based in Chile177
- Security and data services based in Poland173
- Security and data services based in Nigeria168
- Security and data services based in Colombia167
- Security and data services based in Sweden148
- Security and data services based in Indonesia146
- Security and data services based in Singapore145
- Security and data services based in Argentina122
- Security and data services based in Austria101
- Security and data services based in Malaysia93
- Security and data services based in Kenya89
- Security and data services based in New Zealand88
- Security and data services based in Romania80
- Security and data services based in Bangladesh78
- Security and data services based in Portugal78
- Security and data services based in Egypt77
- Security and data services based in Ireland76
- Security and data services based in Peru73
- Security and data services based in Denmark71
- Security and data services based in Morocco71
- Security and data services based in Ecuador66
- Security and data services based in Greece63
- Security and data services based in the Philippines63
- Security and data services based in Finland59
- Security and data services based in Hungary56
- Security and data services based in Sri Lanka52
- Security and data services based in Ghana50
- Security and data services based in Japan49
- Security and data services based in Bulgaria45
- Security and data services based in Thailand44
- Security and data services based in Qatar43
- Security and data services based in Jordan41
- Security and data services based in Ukraine40
- Security and data services based in the Dominican Republic38
- Security and data services based in Norway37
- Security and data services based in Slovakia36
- Security and data services based in Estonia35
- Security and data services based in Cyprus30
- Security and data services based in Hong Kong30
- Security and data services based in Luxembourg30
- Security and data services based in Panama30
- Security and data services based in Oman27
Cities
- Security and data services based in London, United Kingdom564
- Security and data services based in Sao Paulo, Brazil273
- Security and data services based in Toronto, Canada196
- Security and data services based in New York, United States194
- Security and data services based in Pune, India163
- Security and data services based in Sydney, Australia162
- Security and data services based in Hyderabad, India161
- Security and data services based in Melbourne, Australia148
- Security and data services based in Houston, United States137
- Security and data services based in Bangalore, India129
- Security and data services based in Mumbai, India123
- Security and data services based in New Delhi, India120
- Security and data services based in Atlanta, United States118
- Security and data services based in Washington, United States117
- Security and data services based in Chicago, United States109
- Security and data services based in Miami, United States108
- Security and data services based in Austin, United States105
- Security and data services based in Chennai, India103
- Security and data services based in Dallas, United States103
- Security and data services based in Noida, India97
- Security and data services based in Bengaluru, India96
- Security and data services based in Ahmedabad, India86
- Security and data services based in Tampa, United States86
- Security and data services based in Montreal, Canada85
- Security and data services based in Calgary, Canada80
- Security and data services based in San Francisco, United States74
- Security and data services based in San Diego, United States70
- Security and data services based in Los Angeles, United States66
- Security and data services based in Ottawa, Canada60
- Security and data services based in Charlotte, United States59
- Security and data services based in Berlin, Germany58
- Security and data services based in Rio De Janeiro, Brazil58
- Security and data services based in Vancouver, Canada58
- Security and data services based in Denver, United States56
- Security and data services based in Karachi, Pakistan56
- Security and data services based in Brisbane, Australia54
- Security and data services based in Manchester, United Kingdom54
- Security and data services based in Arlington, United States51
- Security and data services based in Gurgaon, India49
- Security and data services based in Boston, United States48
- Security and data services based in Orlando, United States48
- Security and data services based in Delhi, India47
- Security and data services based in Gurugram, India45
- Security and data services based in Las Vegas, United States45
- Security and data services based in Alexandria, United States44
- Security and data services based in Columbia, United States44
- Security and data services based in Phoenix, United States43
- Security and data services based in San Antonio, United States42
- Security and data services based in Mclean, United States41
- Security and data services based in Seattle, United States41
- Security and data services based in Belo Horizonte, Brazil40
- Security and data services based in Raleigh, United States40
- Security and data services based in Reston, United States40
- Security and data services based in Canberra, Australia39
- Security and data services based in Baltimore, United States38
- Security and data services based in Perth, Australia36
- Security and data services based in Sheridan, United States36
- Security and data services based in Wilmington, United States36
- Security and data services based in Fairfax, United States35
- Security and data services based in Ashburn, United States34
- Security and data services based in Brasilia, Brazil34
- Security and data services based in San Jose, United States34
- Security and data services based in Mississauga, Canada32
- Security and data services based in Herndon, United States31
- Security and data services based in Portland, United States31
- Security and data services based in Irvine, United States30
- Security and data services based in Munich, Germany30
- Security and data services based in Plano, United States30
- Security and data services based in Scottsdale, United States29
- Security and data services based in Columbus, United States28
- Security and data services based in Huntsville, United States28
- Security and data services based in Indianapolis, United States28
- Security and data services based in Minneapolis, United States28
- Security and data services based in Navi Mumbai, India28
- Security and data services based in Richmond, United States28
- Security and data services based in Adelaide, Australia27
- Security and data services based in Birmingham, United Kingdom27
- Security and data services based in Curitiba, Brazil27
- Security and data services based in Nashville, United States27
- Security and data services based in Colorado Springs, United States26
- Security and data services based in Dover, United States26
- Security and data services based in Frisco, United States26
- Security and data services based in Pittsburgh, United States26
- Security and data services based in Edmonton, Canada25
- Security and data services based in Hamburg, Germany25
- Security and data services based in Monterrey, Mexico25
- Security and data services based in Porto Alegre, Brazil25
- Security and data services based in Vienna, United States25
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 security and data services, 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 security and data services are there worldwide?
RevenueBase identified 25,699 security and data services 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 security and data services?
The United States leads with 6,779 companies, followed by India (2,037) and the United Kingdom (1,475). Every security and data services list by country and city is linked on this page.
Which city has the most security and data services?
London leads with 570 headquartered companies, followed by Sao Paulo (273) and Dubai (262).
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 132,893 verified decision-maker contacts tracked across these 25,699 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 21, 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.