Company lists · Data refreshed September 2026

Top 15 Enterprise security services based in Atlanta, United States

RevenueBase identified 43 enterprise security services headquartered in Atlanta, United States as of September 2026 and tracks 434 professional contacts across them, including 148 with verified work emails. New York is the largest hub.

This list covers enterprise security services 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
43Companies
434Contacts tracked
148Verified emails
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The 15 largest enterprise security services based in Atlanta, United States

Ranked by team size
Top 15 of 43 enterprise security services 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 enterprise security services: 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 evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202651-200150 contacts →

Partial 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
2Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 2026501-1,00044 contacts →

Partial evidence

“Founded in 2001, ALL N ONE is one of the nation’s largest and most experienced, fully-certified security firms.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202651-20043 contacts →

Partial evidence

“VerSprite was created to fill a void in the area of security managed services where most firms continued to sell security products and services based upon compliance fear factor…”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202651-20032 contacts →

Partial 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
5Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-5023 contacts →

Partial evidence

“Hexagon Security is pioneering the integrated security services sector servicing Atlanta, Georgia.”

Source: RevenueBase Database · checked Sep 21, 2026
6Strong evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202651-20010 contacts →

Strong evidence

“Odin Enterprises, LLC is a Georgia-based company founded as a security solutions provider specializing in the fields of crisis and risk management, insider threat mitigation…”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-107 contacts →

Partial evidence

“At Cittadella, we're not just providing security solutions but revolutionizing security for the modern world.”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-505 contacts →

Partial evidence

“We are a managed security services provider with more than 25 years of experience providing innovative technology to businesses of all sizes.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202651-2004 contacts →

Partial evidence

“Pritchard Global Alliance is a security-focused company based in Atlanta, GA, specializing in comprehensive security guard and surveillance services.”

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-504 contacts →

Partial evidence

“Delivers high quality innovative cyber security solutions that help protect clients from malicious activity.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-104 contacts →

Partial evidence

“DMG & Co is a team of security experts dedicated to protecting and securing the things that matter most to you.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-103 contacts →

Partial evidence

“We specialize in tackling security and safety challenges prevalent in corporate and industrial environments.”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“The operational security of the cloud operations is the weakest link in cloud security.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-102 contacts →

Indirect 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
15Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-101 contacts →

Partial 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

Showing 15 of 43 enterprise security services based in Atlanta, United States

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Enterprise security services based in Atlanta, United States at a glance

As of Sep 21, 2026
34.1%Verified-email coverage
10.1Average contacts per company
1-10Median size (employees)
248.8%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
10
51-200
7
501-1,000
1

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 43 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 enterprise security services, 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 “enterprise security services”. 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 enterprise security services), 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 enterprise security services, 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, 148 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.

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 enterprise security services, 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 enterprise security services are there based in Atlanta, United States?

RevenueBase identified 43 enterprise security services 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 enterprise security services?

New York leads with 107 headquartered companies, followed by Houston (81) and Austin (61).

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 148 verified decision-maker contacts tracked across these 43 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.