Company lists · Data refreshed November 2026

Top 25 Data center penetration testing services based in the United States

RevenueBase identified 495 company matches for data center penetration testing services associated with the United States as of November 2026 and tracks 5,539 professional contacts across them, including 2,300 with verified work emails. New York is the largest hub.

This list covers company matches for data center penetration testing 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 November 6, 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 Nov 6, 2026 How this list was built
495Companies
5,539Contacts tracked
2,300Verified emails
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The 25 largest data center penetration testing services based in the United States

Ranked by team size
Top 25 of 495 company matches for data center penetration testing services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchMinneapolis, MN, United StatesHQ recorded Nov 6, 2026501-1,000608 contacts →

Exact match

“NetSPI® pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern, continuous pentesting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchTempe, AZ, United StatesHQ recorded Nov 6, 2026201-500357 contacts →

Exact match

“Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026201-500335 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCharlotte, NC, United StatesHQ recorded Nov 6, 2026n/a251 contacts →

Exact match

“A veteran-owned cybersecurity company focused on penetration testing, security training, and compliance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRedwood City, CA, United StatesHQ recorded Nov 6, 2026201-500224 contacts →

Exact match

“Synack is the leader in human-led and agentic AI-powered Penetration Testing as a Service (PTaaS), transforming offensive security to help organizations proactively reduce risk…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-200164 contacts →

Exact match

“BreachLock is a global leader in Continuous Attack Surface Discovery and Penetration Testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSpearfish, SD, United StatesHQ recorded Nov 6, 202651-200140 contacts →

Exact match

“We specialize in penetration testing, red teaming, threat hunting, Active SOC services, and educational webinars, workshops, and training.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAmesbury, MA, United StatesHQ recorded Nov 6, 20265,001-10,000130 contacts →

Exact match

“BGIS | Critical Solutions Group is a provider of data center services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202651-200124 contacts →

Exact match

“Praetorian helps enterprises reduce material risk by revealing their environment exactly as an attacker would.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 202611-50103 contacts →

Exact match

“FireCompass is an Agentic AI platform for autonomous penetration testing and red teaming across Web, API, and infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDenver, CO, United StatesHQ recorded Nov 6, 202651-200102 contacts →

Exact match

“DirectDefense provides enterprise risk assessments, penetration testing, ICS/SCADA security services, and 24/7 managed security services for companies of all sizes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchJacksonville, FL, United StatesHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“OnDefend specializes in advanced cybersecurity testing that delivers ongoing security validation across the most complex technology environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSan Antonio, TX, United StatesHQ recorded Nov 6, 202611-5065 contacts →

Exact match

“SandTech Solutions is a Certified 8a member as well as a Service Disabled Veteran-Owned Small Business (SDVOSB).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBrookfield, MO, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“SynerComm strengthens your cybersecurity and network defenses across your entire technology stack.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchJacksonville, FL, United StatesHQ recorded Nov 6, 202611-5048 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHuntsville, AL, United StatesHQ recorded Nov 6, 202611-5044 contacts →

Exact match

“H2L Solutions is a Service-Disabled Veteran-Owned Small Business (SDVOSB) and HUBZone-certified cybersecurity company headquartered in Huntsville, Alabama.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchRedmond, WA, United StatesHQ recorded Nov 6, 202651-20041 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“We're the security consultants Fortune 500s call when they're in real trouble, the ones who find what others miss, who speak CEO and CISO fluently.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGrand Rapids, MI, United StatesHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“VDA Labs is on a mission to make the world a safer place through improved Cyber Security!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHerndon, VA, United StatesHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“Sphinx Solutions is an entrepreneurial cyber security company that helps private- and public-sector organizations take advantage of solutions that match today’s security…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Let’s be honest, relocating a data center is a complicated minefield of potential problems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWoburn, MA, United StatesHQ recorded Nov 6, 202611-5029 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAll Over The Us, United StatesHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMiami, FL, United StatesHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“ONSEC.io - is a penetration testing & in-depth security audit company with more than 13 years of experience on the market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 495 data center penetration testing services based in the United States

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Data center penetration testing services based in the United States at a glance

As of Nov 6, 2026
41.5%Verified-email coverage
11.2Average contacts per company
1-10Median size (employees)
6.5%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
313
11-50
151
51-200
18
201-500
8
501-1,000
1
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 495 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 “data center penetration testing 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 2,300 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 November 6, 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.

Data center penetration testing services by metro

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 “data center penetration testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data center penetration testing services are there based in the United States?

RevenueBase identified 495 company matches for data center penetration testing services associated with the United States as of November 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?

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

Which city has the most data center penetration testing services?

New York leads with 32 company records, followed by Austin (17) and San Francisco (15).

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 2,300 professional contacts with verified work emails tracked across these 495 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 November 6, 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.