Company lists · Data refreshed September 2026
Top 25 Attack surface management companies worldwide
RevenueBase identified 18,367 attack surface management companies worldwide as of September 2026 and tracks 321,040 professional contacts across them, including 111,806 with verified work emails. The United States is the largest market and London the largest hub.
This list covers attack surface management 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 attack surface management 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 attack surface management 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 | 6,058 contacts → | ||||
Partial evidence “HackerOne is a global leader in Continuous Threat Exposure Management (CTEM) and the only solution provider that pairs the simultaneous trust of the Fortune 500 and the world's…” Source: RevenueBase Database · checked Sep 19, 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 19, 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 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 → | ||||
Indirect 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 | 3,145 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. | |||||
| 11 | 3,058 contacts → | ||||
Indirect evidence “Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…” Source: RevenueBase Database · checked Sep 19, 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 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2,173 contacts → | ||||
Partial evidence “Tenable is the exposure management company, exposing and closing the cybersecurity gaps that erode business value, reputation and trust.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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. | |||||
| 16 | 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. | |||||
| 17 | 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. | |||||
| 18 | 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. | |||||
| 19 | 1,252 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,232 contacts → | ||||
Indirect evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,217 contacts → | ||||
Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,181 contacts → | ||||
Partial evidence “As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,112 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,026 contacts → | ||||
Indirect evidence “Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 947 contacts → | ||||
Indirect evidence “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” 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: attack surface management 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 attack surface management companies.
- Partial evidence
- Its own public description names part of attack surface management companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name attack surface management 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 18,367 attack surface management companies worldwide
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Attack surface management 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 attack surface management 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 attack surface management companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “attack surface management 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 attack surface management 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 attack surface management 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, 111,806 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.
Attack surface management companies by location
106 lists · largest firstEvery Attack surface management companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Attack surface management companies based in the United States4,656
- Attack surface management companies based in India1,687
- Attack surface management companies based in the United Kingdom1,118
- Attack surface management companies based in Canada611
- Attack surface management companies based in Australia609
- Attack surface management companies based in France558
- Attack surface management companies based in Brazil491
- Attack surface management companies based in Germany378
- Attack surface management companies based in the Netherlands321
- Attack surface management companies based in Spain305
- Attack surface management companies based in the United Arab Emirates294
- Attack surface management companies based in Italy237
- Attack surface management companies based in South Africa206
- Attack surface management companies based in Mexico201
- Attack surface management companies based in Türkiye198
- Attack surface management companies based in Israel180
- Attack surface management companies based in Switzerland155
- Attack surface management companies based in Pakistan148
- Attack surface management companies based in Belgium147
- Attack surface management companies based in Chile132
- Attack surface management companies based in Saudi Arabia132
- Attack surface management companies based in Singapore126
- Attack surface management companies based in Colombia120
- Attack surface management companies based in Nigeria112
- Attack surface management companies based in Indonesia108
- Attack surface management companies based in Poland108
- Attack surface management companies based in Sweden94
- Attack surface management companies based in Argentina85
- Attack surface management companies based in Malaysia75
- Attack surface management companies based in Kenya71
- Attack surface management companies based in New Zealand71
- Attack surface management companies based in Austria67
- Attack surface management companies based in Romania64
- Attack surface management companies based in Ireland62
- Attack surface management companies based in Denmark56
- Attack surface management companies based in Japan49
- Attack surface management companies based in Ecuador47
- Attack surface management companies based in Portugal47
- Attack surface management companies based in Finland46
- Attack surface management companies based in Greece45
- Attack surface management companies based in Peru45
- Attack surface management companies based in Hungary42
- Attack surface management companies based in the Philippines42
- Attack surface management companies based in Egypt41
- Attack surface management companies based in Thailand41
- Attack surface management companies based in Ukraine39
- Attack surface management companies based in Ghana38
- Attack surface management companies based in Bulgaria37
- Attack surface management companies based in Sri Lanka37
- Attack surface management companies based in Jordan31
- Attack surface management companies based in Qatar31
- Attack surface management companies based in the Dominican Republic31
- Attack surface management companies based in Estonia29
- Attack surface management companies based in Norway29
- Attack surface management companies based in Slovakia29
Cities
- Attack surface management companies based in Toronto, Canada141
- Attack surface management companies based in New York, United States135
- Attack surface management companies based in Sydney, Australia134
- Attack surface management companies based in Pune, India133
- Attack surface management companies based in Hyderabad, India127
- Attack surface management companies based in Melbourne, Australia115
- Attack surface management companies based in Bangalore, India110
- Attack surface management companies based in Mumbai, India108
- Attack surface management companies based in New Delhi, India94
- Attack surface management companies based in Austin, United States93
- Attack surface management companies based in Washington, United States88
- Attack surface management companies based in Atlanta, United States87
- Attack surface management companies based in Noida, India82
- Attack surface management companies based in Bengaluru, India81
- Attack surface management companies based in Chennai, India81
- Attack surface management companies based in Houston, United States81
- Attack surface management companies based in San Francisco, United States80
- Attack surface management companies based in Ahmedabad, India75
- Attack surface management companies based in Dallas, United States75
- Attack surface management companies based in Montreal, Canada75
- Attack surface management companies based in Miami, United States73
- Attack surface management companies based in Chicago, United States72
- Attack surface management companies based in Tampa, United States64
- Attack surface management companies based in Brisbane, Australia49
- Attack surface management companies based in Boston, United States47
- Attack surface management companies based in Calgary, Canada46
- Attack surface management companies based in Los Angeles, United States46
- Attack surface management companies based in Ottawa, Canada46
- Attack surface management companies based in Columbia, United States45
- Attack surface management companies based in Arlington, United States44
- Attack surface management companies based in San Diego, United States43
- Attack surface management companies based in Gurgaon, India42
- Attack surface management companies based in Charlotte, United States41
- Attack surface management companies based in Las Vegas, United States39
- Attack surface management companies based in Denver, United States38
- Attack surface management companies based in Karachi, Pakistan37
- Attack surface management companies based in Orlando, United States37
- Attack surface management companies based in Reston, United States37
- Attack surface management companies based in Vancouver, Canada35
- Attack surface management companies based in Canberra, Australia34
- Attack surface management companies based in Gurugram, India34
- Attack surface management companies based in Wilmington, United States34
- Attack surface management companies based in Phoenix, United States32
- Attack surface management companies based in San Antonio, United States31
- Attack surface management companies based in Raleigh, United States29
- Attack surface management companies based in Seattle, United States29
- Attack surface management companies based in Alexandria, United States27
- Attack surface management companies based in Fairfax, United States27
- Attack surface management companies based in San Jose, United States26
- Attack surface management companies based in Baltimore, United States25
- Attack surface management companies based in Huntsville, 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 attack surface management 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 attack surface management companies are there worldwide?
RevenueBase identified 18,367 attack surface management 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 attack surface management companies?
The United States leads with 4,656 companies, followed by India (1,687) and the United Kingdom (1,118). Every attack surface management companies list by country and city is linked on this page.
Which city has the most attack surface management companies?
London leads with 457 headquartered companies, followed by Sao Paulo (187) and Paris (183).
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 111,806 verified decision-maker contacts tracked across these 18,367 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.