Company lists · Data verified August 2026

Top 25 Cybersecurity companies based in Atlanta, United States

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 158 companies tracked

Our directory lists 158 cybersecurity companies based in Atlanta, United States, with 1,500 professional contacts and 610 email addresses. The list was last updated in August 2026, and New York is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of August 28, 2026.

158Companies

1,500Contacts tracked

610Verified emails

505Mobile numbers

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The 25 largest cybersecurity companies based in Atlanta, United States

Ranked by team size

Top 25 of 158 cybersecurity companies based in Atlanta, United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Sysnet Global Solutions	Atlanta, GA	501-1,000	220	43
2	Ironscales	Atlanta, GA	51-200	165	97
3	Appriver	Atlanta, GA	201-500	114	86
4	Ioactive, INC	Atlanta, GA	51-200	105	76
5	Leapfrog Services	Atlanta, GA	51-200	78	42
6	Apptega	Atlanta, GA	51-200	63	36
7	Xtreme Solutions INC	Atlanta, GA	51-200	54	2
8	Insuretrust	Atlanta, GA	11-50	43	28
9	Fortuna Cysec	Atlanta, GA	51-200	33	14
10	QIT Solutions	Atlanta, GA	11-50	31	21
11	RED Sentry	Atlanta, GA	11-50	28	13
12	Genix Cyber	Atlanta, GA	51-200	26	7
13	The Cyber Express By Cyble	Atlanta, GA	11-50	21	3
14	Impac Labs	Atlanta, GA	11-50	19	11
15	ICM Cyber	Atlanta, GA	11-50	18	17
16	SYBA	Atlanta, GA	51-200	17	7
17	Hanabyte	Atlanta, GA	11-50	16	6
18	Voreas Laboratories	Atlanta, GA	11-50	14	8
19	NDNB	Atlanta, GA	11-50	14	1
20	Netdepot	Atlanta, GA	51-200	10	5
21	Serket-Tech Security	Atlanta, GA	11-50	10	5
22	Black Breach Security Division ITS	Atlanta, GA	51-200	8	4
23	Skyfy Technica	Atlanta, GA	11-50	8	1
24	Infragard Atlanta Members Alliance Iama	Atlanta, GA	501-1,000	6	3
25	The Onyx IT Group	Atlanta, GA	11-50	5	1

Showing 25 of 158 cybersecurity companies based in Atlanta, United States

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Cybersecurity companies based in Atlanta, United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 329 HQs

505Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Cybersecurity companies by metro in the United States

Metro	Companies
Cybersecurity companies in New York	329
Cybersecurity companies in Austin	182
Cybersecurity companies in San Francisco	179
Cybersecurity companies in Washington	168
Cybersecurity companies in Atlanta	158
Cybersecurity companies in Houston	153
Cybersecurity companies in Miami	149

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cybersecurity companies”, with match quality audited by blind human judging, and headquartered in Atlanta, United States.
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: Contact records re-verify on a rolling cadence; 2 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity companies are in the directory?

The directory lists 158 cybersecurity companies based in Atlanta, United States.

Which city has the most cybersecurity companies?

New York is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 1,500 professional contacts and 610 email addresses for the listed cybersecurity companies.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.