Company lists · Data refreshed September 2026

Top 24 Cybersecurity big companies based in Atlanta, United States

Name: Cybersecurity big companies based in Atlanta, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 63 companies tracked

RevenueBase identified 63 cybersecurity big companies headquartered in Atlanta, United States as of September 2026 and tracks 474 professional contacts across them, including 193 with verified work emails. New York is the largest hub.

This list covers cybersecurity big companies headquartered in Atlanta, 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 21, 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 21, 2026 86% judged on-target in blind review

63Companies

474Contacts tracked

193Verified emails

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The 24 largest cybersecurity big companies based in Atlanta, United States

Ranked by team size

Top 24 of 63 cybersecurity big companies based in Atlanta, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity big 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	OSC Edge	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	150 contacts →
	Indirect evidence “From CND in the Cloud to CSfC with Enterprise Remote Capabilities, OSC Edge empowers organizations with solutions that prepare them for today and tomorrow.” Source: RevenueBase Database · checked Sep 21, 2026
2	Scybers	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	89 contacts →
	Partial evidence “Scybers is a pure-play global cybersecurity firm.” Source: RevenueBase Database · checked Sep 21, 2026
3	Fortuna Cysec	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	32 contacts →
	Indirect evidence “Fortuna Cysec delivers a comprehensive security ecosystem that seamlessly integrates with your existing infrastructure, offering end-to-end protection with the flexibility to…” Source: RevenueBase Database · checked Sep 21, 2026
4	Impac Labs	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “Safeguard your clouds with complete visibility of every cyber asset.” Source: RevenueBase Database · checked Sep 21, 2026
5	SYBA	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	18 contacts →
	Indirect evidence “About Syba Syba is your smart, silent cyber-bodyguard, protecting you, your family, and your business from the digital threats of everyday life.” Source: RevenueBase Database · checked Sep 21, 2026
6	NDNB	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “Founded in part by former Arthur Andersen and BDO professionals, the NDNB Alliance of Firms is a nationally recognized group of entities specializing in cybersecurity, data…” Source: RevenueBase Database · checked Sep 21, 2026
7	Serket-Tech Security	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “Serket-Tech Security helps organizations transform compliance requirements into security advantages.” Source: RevenueBase Database · checked Sep 21, 2026
8	Black Breach Security Division ITS	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	8 contacts →
	Partial evidence “Since 2015, Black Breach has established itself as an experienced-based, client-driven cybersecurity consulting and special services firm.” Source: RevenueBase Database · checked Sep 21, 2026
9	Imaginex	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	5 contacts →
	Indirect evidence “ImagineX is a leading digital services firm whose mission is to help our clients and technologists to #BeBetter.” Source: RevenueBase Database · checked Sep 21, 2026
10	Hacwatch	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	4 contacts →
	Indirect evidence “Delivers high quality innovative cyber security solutions that help protect clients from malicious activity.” Source: RevenueBase Database · checked Sep 21, 2026
11	Intellinetic Cyber Consultants	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	4 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
12	Gotime Digital	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Partial evidence “GoTime Digital \| The Apex Circuit Collective At GoTime Digital, we don’t just provide IT solutions-we engineer high-performance business acceleration through Cybersecurity…” Source: RevenueBase Database · checked Sep 21, 2026
13	Vertical VAR	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
14	LOKX	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Partial evidence “Trusted advisors and systems integrators in cybersecurity, cyber advisory services, advanced networking, and full-stack observability” Source: RevenueBase Database · checked Sep 21, 2026
15	Opus Business Technologies	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	2 contacts →
	Indirect evidence “Opus is a cyber security firm headquartered out of Atlanta Georgia.” Source: RevenueBase Database · checked Sep 21, 2026
16	Firebrand Security Consulting	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “Firebrand Security Consulting is a professional services firm, specializing in cyber security.” Source: RevenueBase Database · checked Sep 21, 2026
17	Traxtion Technologies	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Partial evidence “Traxtion Technologies is a cybersecurity and public health company that offers project management, advisory, and end-to-end cybersecurity services.” Source: RevenueBase Database · checked Sep 21, 2026
18	Targetproof	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Partial evidence “With 10 years serving business needs for cybersecurity technologies and services, TargetProof has built its reputation on breadth of capabilities and speed to deliver exceptional…” Source: RevenueBase Database · checked Sep 21, 2026
19	Simplified Security Solutions	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	1 contacts →
	Indirect evidence “We provide our clients with consistent, process-driven outcomes that will be infused into your organization.” Source: RevenueBase Database · checked Sep 21, 2026
20	Secure Technology Consultants, LLC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Secure Technology Consultants (STC) is a cybersecurity and IT advisory firm focused on helping organizations strengthen security, manage risk, and improve operational resilience.” Source: RevenueBase Database · checked Sep 21, 2026
21	Asteros Cybersecurity Services	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Asteros provides professional Cybersecurity services and consulting to small and medium business, education, enterprise, and non-profit organizations.” Source: RevenueBase Database · checked Sep 21, 2026
22	D&o Security Solutions	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “D&O Security Solutions is an employee focused, Information Security and Management company founded to address the cyber security challenges facing the federal government.” Source: RevenueBase Database · checked Sep 21, 2026
23	Arthur Allen Technology	Partial evidence	Atlanta, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Welcome to Arthur Allen Technology, your dedicated cybersecurity and IT partner for small businesses.” Source: RevenueBase Database · checked Sep 21, 2026
24	Https Bare.Metal.Network	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “We understand that small to medium sized organizations must cope with the same cybersecurity threats as larger companies, but do not have the same resources available for…” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity big companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity big companies.
Partial evidence: Its own public description names part of cybersecurity big companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity big companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 24 of 63 cybersecurity big companies based in Atlanta, United States

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Cybersecurity big companies based in Atlanta, United States at a glance

As of Sep 21, 2026

40.7%Verified-email coverage

7.5Average contacts per company

1-10Median size (employees)

150.8%Largest-city concentration · New York

Sep 21, 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 63 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 cybersecurity big 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 Atlanta, United States whose own description of what they do matches “cybersecurity big 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 cybersecurity big 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 cybersecurity big companies, and records with no verified work email. Companies headquartered outside Atlanta 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, 193 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 21, 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.

Cybersecurity big companies by metro in the United States

Cybersecurity big companies in New York95
Cybersecurity big companies in Washington74
Cybersecurity big companies in Atlanta63
Cybersecurity big companies in Houston63
Cybersecurity big companies in Austin62
Cybersecurity big companies in Miami60
Cybersecurity big companies in Dallas58
Cybersecurity big companies in Chicago57
Cybersecurity big companies in Tampa50
Cybersecurity big companies in San Francisco42
Cybersecurity big companies in Arlington41
Cybersecurity big companies in Columbia40
Cybersecurity big companies in Reston38
Cybersecurity big companies in San Diego38
Cybersecurity big companies in Los Angeles35
Cybersecurity big companies in San Antonio33
Cybersecurity big companies in Las Vegas31
Cybersecurity big companies in Boston30
Cybersecurity big companies in Orlando30
Cybersecurity big companies in Alexandria27
Cybersecurity big companies in Baltimore27
Cybersecurity big companies in Mclean27
Cybersecurity big companies in Phoenix27
Cybersecurity big companies in Charlotte26
Cybersecurity big companies in Denver26
Cybersecurity big companies in Huntsville26
Cybersecurity big companies in Fairfax25
Cybersecurity big companies in Sheridan25

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 cybersecurity big 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 cybersecurity big companies are there based in Atlanta, United States?

RevenueBase identified 63 cybersecurity big companies headquartered in Atlanta, 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?

OSC Edge, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most cybersecurity big companies?

New York leads with 95 headquartered companies, followed by Washington (74) and Atlanta (63).

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 193 verified decision-maker contacts tracked across these 63 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 21, 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.