Company lists · Data refreshed September 2026
Top 10 Network security companies based in Atlanta, United States
RevenueBase identified 33 network security companies headquartered in Atlanta, United States as of September 2026 and tracks 290 professional contacts across them, including 129 with verified work emails. New York is the largest hub.
This list covers network security 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 10 largest network security companies based in Atlanta, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | OSC EdgeIndirect evidence | 150 | |||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 32 | ||||
“Fortuna Cysec delivers a comprehensive security ecosystem that seamlessly integrates with your existing infrastructure, offering end-to-end protection with the flexibility to…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 19 | ||||
“Safeguard your clouds with complete visibility of every cyber asset.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 4 | ||||
“Delivers high quality innovative cyber security solutions that help protect clients from malicious activity.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | LOKXPartial evidence | 3 | |||
“Trusted advisors and systems integrators in cybersecurity, cyber advisory services, advanced networking, and full-stack observability” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | Opus Business TechnologiesPartial evidence | 2 | |||
“Opus is a cyber security firm headquartered out of Atlanta Georgia.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | TargetproofIndirect evidence | 2 | |||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | BVH LLCIndirect evidence | 2 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 10 of 33 network security companies based in Atlanta, United States
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Network security companies based in Atlanta, United States at a glance
As of Sep 5, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Atlanta, over 33 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 companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among network security 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 an evidence 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, 129 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 5, 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.
Network security companies by metro in the United States
- Network security companies in New York72
- Network security companies in Miami45
- Network security companies in Houston44
- Network security companies in Austin41
- Network security companies in Dallas40
- Network security companies in Chicago36
- Network security companies in Atlanta33
- Network security companies in San Francisco28
- Network security companies in Washington27
Frequently asked
How many network security companies are there based in Atlanta, United States?
RevenueBase identified 33 network security 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 network security companies?
New York leads with 72 headquartered companies, followed by Miami (45) and Houston (44).
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 129 verified decision-maker contacts tracked across these 33 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 5, 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.
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