Company lists · Data refreshed September 2026

Top 25 Mobile app security testing companies based in the United States

RevenueBase identified 274 mobile app security testing companies headquartered in the United States as of September 2026 and tracks 3,444 professional contacts across them, including 1,306 with verified work emails. San Francisco is the largest hub.

This list covers mobile app security testing companies 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 28, 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 28, 2026 86% judged on-target in blind review
274Companies
3,444Contacts tracked
1,306Verified emails
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The 25 largest mobile app security testing companies based in the United States

Ranked by team size
Top 25 of 274 mobile app security testing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to mobile app security testing companies: 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
1Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026201-500350 contacts →

Partial evidence

“Cobalt is the pioneer in pentesting as a service and a leader in offensive security services.”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceDallas, TX, United StatesHQ checked Sep 28, 2026201-500239 contacts →

Strong evidence

“Zimperium is the world leader in AI-Empowered Mobile Security.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceNY, United StatesHQ checked Sep 28, 2026201-500186 contacts →

Indirect evidence

“Kualitatem empowers businesses to deliver quality software.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202651-200167 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Strong evidenceRedwood City, CA, United StatesHQ checked Sep 28, 2026201-500165 contacts →

Strong evidence

“Appdome protects mobile apps, APIs, and digital identities from fraud, bots, malware, and account takeover attacks.”

Source: RevenueBase Database · checked Sep 28, 2026
6Strong evidenceMission Viejo, CA, United StatesHQ checked Sep 28, 2026201-500125 contacts →

Strong evidence

“Varutra Consulting, an InfoShare company, is a globally recognized cybersecurity firm delivering cutting-edge solutions in Cloud Security, Mobile Security, Application Security…”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceAlexandria, VA, United StatesHQ checked Sep 28, 2026n/a113 contacts →

Partial evidence

“Strategic Security is an IT Security consulting firm that provides in-depth technical security assessments of your network, web application, and regulatory compliance gap analysis…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-200107 contacts →

Partial evidence

“IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.”

Source: RevenueBase Database · checked Sep 28, 2026
9Strong evidenceChicago, IL, United StatesHQ checked Sep 28, 202651-200103 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceSan Jose, CA, United StatesHQ checked Sep 28, 2026201-50089 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceCulver City, CA, United StatesHQ checked Sep 28, 202611-5062 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
12Strong evidenceAtlanta, GA, United StatesHQ checked Sep 28, 202651-20055 contacts →

Strong evidence

“Kobiton is how companies make their mobile apps work better everywhere.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202611-5051 contacts →

Strong evidence

“The APIsec security testing platform discovers business logic exploits.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 28, 202611-5044 contacts →

Indirect evidence

“Founded in 2010, Secure Ideas is a small-business consulting firm.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5039 contacts →

Partial evidence

“Anvil is an information security consulting firm focused on top tier consulting.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceRedmond, WA, United StatesHQ checked Sep 28, 202651-20038 contacts →

Indirect evidence

“For over two decades, marquee clients have trusted Casaba to test the most sophisticated products in the world.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceSan Jose, CA, United StatesHQ checked Sep 28, 202651-20037 contacts →

Partial evidence

“We are your partners in product security.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceBaltimore, MD, United StatesHQ checked Sep 28, 202611-5033 contacts →

Partial evidence

“Companies come to ISE when they need to find and fix their security vulnerabilities and prove their tech is secure.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceAll Over The Us, United StatesHQ checked Sep 28, 202611-5031 contacts →

Partial evidence

“With offices all over the United States and Canada, Atredis Partners was created by a number of security industry veterans who wanted to prioritize offering quality and client…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceSunnyvale, MA, United StatesHQ checked Sep 28, 20261,001-5,00031 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
21Strong evidenceAtlanta, GA, United StatesHQ checked Sep 28, 202611-5028 contacts →

Strong evidence

“Red Sentry delivers expert-led penetration testing to help businesses identify and fix security vulnerabilities before attackers can exploit them.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202611-5027 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceWoburn, MA, United StatesHQ checked Sep 28, 202611-5022 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceAlpharetta, GA, United StatesHQ checked Sep 28, 202611-5021 contacts →

Partial evidence

“Abricto Security is a team of security leaders, consultants, ethical hackers and cloud professionals working together to test and strengthen your company’s security posture.”

Source: RevenueBase Database · checked Sep 28, 2026
25Strong evidenceRedwood City, CA, United StatesHQ checked Sep 28, 202611-5021 contacts →

Strong evidence

“Certus Cybersecurity enables the world’s most innovative companies by securing software, devices, OT/ICS, and AI through proactive testing and detection and response services.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 274 mobile app security testing companies based in the United States

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Mobile app security testing companies based in the United States at a glance

As of Sep 28, 2026
37.9%Verified-email coverage
12.6Average contacts per company
1-10Median size (employees)
6.9%Largest-city concentration · San Francisco
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
149
11-50
95
51-200
19
201-500
9
501-1,000
1
1,001-5,000
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 274 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 mobile app security testing 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “mobile app security testing 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 mobile app security testing 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 mobile app security testing companies, 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, 1,306 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 28, 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 mobile app security testing 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 mobile app security testing companies are there based in the United States?

RevenueBase identified 274 mobile app security testing companies 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?

Cobalt, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most mobile app security testing companies?

San Francisco leads with 19 headquartered companies, followed by New York (17) and Austin (7).

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 1,306 verified decision-maker contacts tracked across these 274 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 28, 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.