Company lists · Data refreshed September 2026

Top 16 Network security service providers based in Atlanta, United States

RevenueBase identified 50 network security service providers headquartered in Atlanta, United States as of September 2026 and tracks 425 professional contacts across them, including 180 with verified work emails. New York is the largest hub.

This list covers network security service providers 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 14, 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 14, 2026 86% judged on-target in blind review
50Companies
425Contacts tracked
180Verified emails
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The 16 largest network security service providers based in Atlanta, United States

Ranked by team size
Top 16 of 50 network security service providers based in Atlanta, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to network security service providers: 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
1Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 14, 202651-200150 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 14, 2026
2Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 14, 202651-20089 contacts →

Indirect evidence

“Scybers is a pure-play global cybersecurity firm.”

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidenceAtlanta, GA, United StatesHQ checked Sep 14, 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 14, 2026
4Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 14, 202651-20026 contacts →

Indirect evidence

“Genix Cyber - Empowering Cybersecurity Excellence Welcome to Genix Cyber, a distinguished US-based advisory firm founded by former CISOs and Auditors.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 14, 202611-5019 contacts →

Indirect evidence

“Safeguard your clouds with complete visibility of every cyber asset.”

Source: RevenueBase Database · checked Sep 14, 2026
6Partial evidenceAtlanta, GA, United StatesHQ checked Sep 14, 202611-504 contacts →

Partial evidence

“MaxDefense LLC is a Managed Security Services Provider (MSSP) headquartered in Duluth, GA.”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceAtlanta, GA, United StatesHQ checked Sep 14, 202611-504 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceAtlanta, GA, United StatesHQ checked Sep 14, 202611-504 contacts →

Partial 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 14, 2026
9Partial evidenceAtlanta, GA, United StatesHQ checked Sep 14, 20261-103 contacts →

Partial evidence

“Trusted advisors and systems integrators in cybersecurity, cyber advisory services, advanced networking, and full-stack observability”

Source: RevenueBase Database · checked Sep 14, 2026
10Partial evidenceAtlanta, GA, United StatesHQ checked Sep 14, 202611-502 contacts →

Partial evidence

“Opus is a cyber security firm headquartered out of Atlanta Georgia.”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceAtlanta, GA, United StatesHQ checked Sep 14, 20261-102 contacts →

Partial evidence

“Firebrand Security Consulting is a professional services firm, specializing in cyber security.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 14, 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 14, 2026
14Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Asteros provides professional Cybersecurity services and consulting to small and medium business, education, enterprise, and non-profit organizations.”

Source: RevenueBase Database · checked Sep 14, 2026
15Partial evidenceAtlanta, GA, United StatesHQ checked Sep 14, 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 14, 2026
16Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 14, 20261-101 contacts →

Indirect 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 14, 2026

Showing 16 of 50 network security service providers based in Atlanta, United States

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Network security service providers based in Atlanta, United States at a glance

As of Sep 14, 2026
42.4%Verified-email coverage
8.5Average contacts per company
1-10Median size (employees)
192.0%Largest-city concentration · New York
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
32
11-50
10
51-200
8

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 50 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 network security service providers, 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 “network security service providers”. 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 network security service providers), 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 network security service providers, 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, 180 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 14, 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 network security service providers, 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 network security service providers are there based in Atlanta, United States?

RevenueBase identified 50 network security service providers 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 network security service providers?

New York leads with 96 headquartered companies, followed by Austin (63) and Houston (62).

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 180 verified decision-maker contacts tracked across these 50 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 14, 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.