Company lists · Data refreshed September 2026

Top 21 Penetration testing service providers based in Atlanta, United States

Name: Penetration testing service providers based in Atlanta, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 57 companies tracked

RevenueBase identified 57 company matches for penetration testing service providers associated with Atlanta, United States as of September 2026 and tracks 469 professional contacts across them, including 195 with verified work emails. Across the United States, New York is the largest hub for this category (78 companies); Atlanta follows with 57.

This list covers company matches for penetration testing service providers associated with Atlanta, 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 20, 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 20, 2026 How this list was built

57Companies

469Contacts tracked

195Verified emails

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The 21 largest penetration testing service providers based in Atlanta, United States

Ranked by team size

Top 21 of 57 company matches for penetration testing service providers based in Atlanta, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	OSC Edge	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	51-200	150 contacts →
	Exact match “From CND in the Cloud to CSfC with Enterprise Remote Capabilities, OSC Edge empowers organizations with solutions that prepare them for today and tomorrow.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Scybers	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	51-200	89 contacts →
	Exact match “Scybers is a pure-play global cybersecurity firm.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	RED Sentry	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	11-50	28 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 · Sep 20, 2026 · View company records in RevenueBase
4	Genix Cyber	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	51-200	26 contacts →
	Exact match “Genix Cyber - Empowering Cybersecurity Excellence Welcome to Genix Cyber, a distinguished US-based advisory firm founded by former CISOs and Auditors.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Vonahi Security	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	11-50	24 contacts →
	Exact match “vPenTest from Vonahi Security, a Kaseya company, is the leading SaaS platform that's revolutionizing network penetration testing through automation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Cyberdata Pros	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	11-50	13 contacts →
	Exact match “Keeping up with the changing data security and compliance requirements is a full-time job.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Serket-Tech Security	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	11-50	11 contacts →
	Exact match “Serket-Tech Security helps organizations transform compliance requirements into security advantages.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Black Breach Security Division ITS	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	51-200	8 contacts →
	Exact match “Since 2015, Black Breach has established itself as an experienced-based, client-driven cybersecurity consulting and special services firm.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Efortresses, INC	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	1-10	7 contacts →
	Exact match “eFortresses, Inc.(a Gartner 2013 Cool Vendor) is a AI powered Cybersecurity SaaS company that allows our customers to self-assess, get validated, get trained, get certified, and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	maxdefense.io	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	11-50	4 contacts →
	Exact match “MaxDefense LLC is a Managed Security Services Provider (MSSP) headquartered in Duluth, GA.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Hacwatch	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	11-50	4 contacts →
	Exact match “Delivers high quality innovative cyber security solutions that help protect clients from malicious activity.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Intellinetic Cyber Consultants	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	11-50	4 contacts →
	Exact match “We combine pre-breach due diligence with on-site security engineering and triage services to provide our clients with the expertise, tools, and workforce they need to better…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	stealthnet.ai	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	1-10	4 contacts →
	Exact match “StealthNet AI is a technology driven cybersecurity company founded by offensive security professionals with real world testing backgrounds.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	LOKX	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	1-10	3 contacts →
	Exact match “Trusted advisors and systems integrators in cybersecurity, cyber advisory services, advanced networking, and full-stack observability” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Opus Business Technologies	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	11-50	2 contacts →
	Exact match “Opus is a cyber security firm headquartered out of Atlanta Georgia.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Firebrand Security Consulting	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	1-10	2 contacts →
	Exact match “Firebrand Security Consulting is a professional services firm, specializing in cyber security.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Mirability	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	1-10	2 contacts →
	Exact match “Mirability helps organizations keep IT and OT systems secure and compliant through its assess–guide–execute methodology.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Simplified Security Solutions	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	11-50	1 contacts →
	Exact match “We provide our clients with consistent, process-driven outcomes that will be infused into your organization.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Techcompass	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	1-10	1 contacts →
	Exact match “At TechCompass, we specialize in guiding businesses through the complexities of technology use, ensuring your digital operations are secure, effective, and perfectly aligned with…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Asteros Cybersecurity Services	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	1-10	1 contacts →
	Exact match “Asteros provides professional Cybersecurity services and consulting to small and medium business, education, enterprise, and non-profit organizations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	White BOX Security	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	1-10	1 contacts →
	Exact match “Our mission is to help provide a better and more secure digital world through ethical hacking.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “penetration testing service providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 21 of 57 penetration testing service providers based in Atlanta, United States

See the full list, filter by size, metro and specialty, and access 195 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Penetration testing service providers based in Atlanta, United States at a glance

As of Sep 20, 2026

41.6%Verified-email coverage

8.2Average contacts per company

1-10Median size (employees)

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Atlanta, so it is reported there. Company counts and contact totals on this page are exact for Atlanta, over 57 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 Atlanta, United States whose business descriptions match “penetration testing service providers” 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 195 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 20, 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.

Penetration testing service providers by metro in the United States

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

How many penetration testing service providers are there based in Atlanta, United States?

RevenueBase identified 57 company matches for penetration testing service providers associated with Atlanta, 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?

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

Which city in the United States has the most penetration testing service providers?

New York leads the United States with 78 company records, followed by Atlanta (57) and San Francisco (54).

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 195 professional contacts with verified work emails tracked across these 57 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 20, 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.