Company lists · Data refreshed September 2026

Top 25 Application security monitoring services based in the United States

RevenueBase identified 120 company matches for application security monitoring services associated with the United States as of September 2026 and tracks 8,171 professional contacts across them, including 4,435 with verified work emails. San Francisco is the largest hub.

This list covers company matches for application security monitoring services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
120Companies
8,171Contacts tracked
4,435Verified emails
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The 25 largest application security monitoring services based in the United States

Ranked by team size
Top 25 of 120 company matches for application security monitoring services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchFoster City, CA, United StatesHQ recorded Sep 27, 20261,001-5,0003,058 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchBurlington, MA, United StatesHQ recorded Sep 27, 20265,001-10,0001,187 contacts →

Exact match

“Black Duck® meets the board-level risks of modern software with True Scale Application Security, ensuring uncompromised trust in software for the regulated, AI-powered world.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchParamus, NJ, United StatesHQ recorded Sep 27, 2026501-1,0001,042 contacts →

Exact match

“Checkmarx helps the world’s largest enterprises get ahead of application risk without slowing down development.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchBurlington, MA, United StatesHQ recorded Sep 27, 2026501-1,000552 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchBoston, MA, United StatesHQ recorded Sep 27, 2026201-500494 contacts →

Exact match

“Lookout, Inc.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchAustin, TX, United StatesHQ recorded Sep 27, 2026201-500326 contacts →

Exact match

“Invicti is transforming the way web applications are secured.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-200208 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-200167 contacts →

Exact match

“Fluid Attacks helps companies prevent, detect, manage and remediate vulnerabilities across their application attack surface.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchChicago, IL, United StatesHQ recorded Sep 27, 202651-200103 contacts →

Exact match

“NowSecure is the leader in Mobile Application Risk Management, providing automated and human-augmented testing solutions that deliver speed, depth, and accuracy to protect the…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchSan Jose, CA, United StatesHQ recorded Sep 27, 2026201-50089 contacts →

Exact match

“NTT Application Security is driving the future of application security.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchCulver City, CA, United StatesHQ recorded Sep 27, 202611-5062 contacts →

Exact match

“Inspectiv is an all-in-one application security testing platform that simplifies the process of discovering, validating, and remediating vulnerabilities.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchBoston, MA, United StatesHQ recorded Sep 27, 202651-20053 contacts →

Exact match

“Reflectiz is the AI-powered web exposure company trusted by hundreds of global organizations, including Cox Communications, DAZN, Village Roadshow, Leeds United, and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchMiami, FL, United StatesHQ recorded Sep 27, 202651-20049 contacts →

Exact match

“Cybral is based in the US with operating subsidiaries in the North America, Europe and MENA.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5047 contacts →

Exact match

“Software ships daily.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchSan Jose, CA, United StatesHQ recorded Sep 27, 202651-20043 contacts →

Exact match

“SecqureOne (SQ1) is a Silicon Valley based end-to-end cyber security and compliance solution provider serving businesses globally over the last 17 years.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, United StatesHQ recorded Sep 27, 202611-5041 contacts →

Exact match

“Pentest Copilot Enterprise is an autonomous zero-day vulnerability discovery agent that continuously tests your organization like a real attacker.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchDenver, CO, United StatesHQ recorded Sep 27, 202611-5035 contacts →

Exact match

“Transform application security with complete discovery of your API landscape, automated dev-native testing workflows, and actionable remediation guidance – at the pace of AI.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchSunnyvale, MA, United StatesHQ recorded Sep 27, 20261,001-5,00031 contacts →

Exact match

“HCL AppScan is your ultimate solution for fortifying digital defenses and safeguarding software applications against evolving cyber threats.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5027 contacts →

Exact match

“We specialize in Web Application and API penetration Testing, Cyber Threat Intelligence, and Detecting Account Takeovers (ATOs) from attackers.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchRaleigh, NC, United StatesHQ recorded Sep 27, 202611-5024 contacts →

Exact match

“Squirrel Compliancy Solution's network vulnerability assessment and management help enterprises understand their risk exposure then allows them to automate the remediation of…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchKatonah, NY, United StatesHQ recorded Sep 27, 202611-5022 contacts →

Exact match

“Black Talon Security is a dedicated cybersecurity company that goes above and beyond traditional IT measures to provide increased protection against cyber threats.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchWoburn, MA, United StatesHQ recorded Sep 27, 202611-5022 contacts →

Exact match

“Primeon is a leader in enterprise-wide application security, pen-testing (all web apps & smartphone apps security tests - all device flavors), cloud computing application Security…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5021 contacts →

Exact match

“Simplify Salesforce security management and monitoring with security scoring and AI risk detection.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchRemote, United StatesHQ recorded Sep 27, 202611-5020 contacts →

Exact match

“Radically simplifying Web and API Security Testing NightVision brings application security testing into the modern development workflow.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchDover, DE, United StatesHQ recorded Sep 27, 202611-5020 contacts →

Exact match

“Oversecured is a mobile app security provider with automated scanning software solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 120 application security monitoring services based in the United States

See the full list, filter by size, metro and specialty, and access 4,435 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Application security monitoring services based in the United States at a glance

As of Sep 27, 2026
54.3%Verified-email coverage
68.1Average contacts per company
11-50Median size (employees)
9.2%Largest-city concentration · San Francisco
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
56
11-50
35
51-200
19
201-500
3
501-1,000
3
1,001-5,000
3
5,001-10,000
1

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 120 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “application security monitoring services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 4,435 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “application security monitoring services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many application security monitoring services are there based in the United States?

RevenueBase identified 120 company matches for application security monitoring services associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Qualys tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most application security monitoring services?

San Francisco leads with 11 company records, followed by New York (9) and Boston (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 4,435 professional contacts with verified work emails tracked across these 120 companies; direct dials are available where recorded.

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 SmartSearch, 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.