Company lists · Data refreshed September 2026

Top 25 Attack surface management platforms based in the United States

RevenueBase identified 260 attack surface management platforms headquartered in the United States as of September 2026 and tracks 20,499 professional contacts across them, including 11,432 with verified work emails. San Francisco is the largest hub.

This list covers attack surface management platforms headquartered in the United States, 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.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review
260Companies
20,499Contacts tracked
11,432Verified emails
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The 25 largest attack surface management platforms based in the United States

Ranked by team size
Top 25 of 260 attack surface management platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to attack surface management platforms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceFoster City, CA, United StatesHQ checked Sep 27, 20261,001-5,0003,058 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 27, 2026
2Partial evidenceColumbia, MD, United StatesHQ checked Sep 27, 20261,001-5,0002,173 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 27, 2026
3Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 20261,001-5,0001,188 contacts →

Indirect evidence

“Snyk, the leader in secure AI software development, empowers organizations to build fast and stay secure by unleashing developer productivity and reducing business risk.”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceSan Jose, CA, United StatesHQ checked Sep 27, 20261,001-5,0001,181 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 27, 2026
5Indirect evidenceBaltimore, MD, United StatesHQ checked Sep 27, 2026501-1,000904 contacts →

Indirect evidence

“ZeroFox is the solution to discover, validate, and disrupt external cyber threats before they harm revenue or reputation.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 27, 2026501-1,000889 contacts →

Indirect evidence

“Netenrich is redefining security operations by shifting the focus from "efficiency"(speed) to "efficacy"(comprehensive coverage).”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceKansas City, MO, United StatesHQ checked Sep 27, 20261,001-5,000844 contacts →

Indirect evidence

“Today’s threatscape is relentless.”

Source: RevenueBase Database · checked Sep 27, 2026
8Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 2026501-1,000802 contacts →

Strong evidence

“Axonius is the asset intelligence platform for unified security operations and exposure management.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 2026501-1,000725 contacts →

Partial evidence

“Claroty has redefined cyber-physical systems (CPS) protection with an unrivaled industry-centric platform built to secure mission-critical infrastructure.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceBurlington, MA, United StatesHQ checked Sep 27, 2026501-1,000552 contacts →

Partial evidence

“Veracode is a global leader in Application Risk Management for the AI era.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceBurlington, MA, United StatesHQ checked Sep 27, 2026201-500486 contacts →

Indirect evidence

“Pentera provides AI-powered Automated Security Validation for enterprise security teams.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 2026201-500364 contacts →

Indirect evidence

“Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 2026201-500301 contacts →

Indirect evidence

“Finding exposures was never the hard part.”

Source: RevenueBase Database · checked Sep 27, 2026
14Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 2026201-500263 contacts →

Strong evidence

“SecurityPal is a Cybersecurity Assurance Management Platform that blends AI-powered automation with expert oversight to help organizations accelerate trust, reduce friction, and…”

Source: RevenueBase Database · checked Sep 27, 2026
15Strong evidenceNewark, DE, United StatesHQ checked Sep 27, 2026201-500257 contacts →

Strong evidence

“SOCRadar is an Extended Threat Intelligence (XTI) SaaS platform that combines External Attack Surface Management (EASM), Digital Risk Protection Services (DRPS), Supply Chain…”

Source: RevenueBase Database · checked Sep 27, 2026
16Strong evidenceCupertino, CA, United StatesHQ checked Sep 27, 2026201-500257 contacts →

Strong evidence

“Cyble is the world’s first intelligence-driven, AI-native security platform delivering detection, protection and remediation across the digital attack surface.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceAlbuquerque, NM, United StatesHQ checked Sep 27, 2026201-500244 contacts →

Indirect evidence

“Securin is obsessed with helping leaders continuously improve their security posture.”

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 202651-200208 contacts →

Partial evidence

“TAC Security (NSE: TAC) TAC Security, a leading publicly listed global cybersecurity company specializing in vulnerability management, today serves clients across 100 countries…”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidencePalo Alto, CA, United StatesHQ checked Sep 27, 202651-200189 contacts →

Indirect evidence

“ArmorCode is redefining security governance in the AI era as the independent control plane for software and infrastructure security.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceRedwood City, CA, United StatesHQ checked Sep 27, 202651-200174 contacts →

Indirect evidence

“SecPod is a leading cybersecurity technology company committed to preventing cyberattacks through proactive security.”

Source: RevenueBase Database · checked Sep 27, 2026
21Strong evidenceMenlo Park, CA, United StatesHQ checked Sep 27, 202651-200154 contacts →

Strong evidence

“RedSeal is an agentless, AI enabled exposure management platform for hybrid and remote infrastructure.”

Source: RevenueBase Database · checked Sep 27, 2026
22Partial evidenceLos Altos, CA, United StatesHQ checked Sep 27, 202651-200149 contacts →

Partial evidence

“AttackIQ® is trusted by top organizations worldwide to validate security controls in real time.”

Source: RevenueBase Database · checked Sep 27, 2026
23Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-200148 contacts →

Strong evidence

“Black Kite is an AI-native third-party cyber risk management platform built for the connected world.”

Source: RevenueBase Database · checked Sep 27, 2026
24Partial evidenceRiverside, CA, United StatesHQ checked Sep 27, 202651-200147 contacts →

Partial evidence

“Fidelis Security® is the industry innovator in proactive cyber defense, safeguarding modern IT for global enterprises with proactive XDR and CNAPP platforms.”

Source: RevenueBase Database · checked Sep 27, 2026
25Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202651-200139 contacts →

Strong evidence

“Zafran is an AI-native exposure management platform that eliminates the manual toil of vulnerability management by cutting through noise, revealing what is truly exploitable, and…”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 260 attack surface management platforms based in the United States

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Attack surface management platforms based in the United States at a glance

As of Sep 27, 2026
55.8%Verified-email coverage
78.8Average contacts per company
11-50Median size (employees)
8.1%Largest-city concentration · San Francisco
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
71
11-50
101
51-200
64
201-500
11
501-1,000
6
1,001-5,000
7

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 260 companies.

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 platforms, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “attack surface management platforms”. 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 platforms), 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 platforms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 11,432 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.

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 platforms, 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 platforms are there based in the United States?

RevenueBase identified 260 attack surface management platforms headquartered in the United States 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?

Qualys, headquartered in Foster City, tops this list with the largest team on record.

Which city has the most attack surface management platforms?

San Francisco leads with 21 headquartered companies, followed by New York (18) and Boston (9).

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 11,432 verified decision-maker contacts tracked across these 260 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.