Company lists · Data refreshed October 2026

Top 25 Cybersecurity services firms based in Atlanta, United States

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

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 139 companies tracked

RevenueBase identified 139 company matches for cybersecurity services firms associated with Atlanta, United States as of October 2026 and tracks 1,127 professional contacts across them, including 467 with verified work emails. Across the United States, New York is the largest hub for this category (276 companies); Atlanta has 139.

This list covers company matches for cybersecurity services firms associated with Atlanta, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built

139Companies

1,127Contacts tracked

467Verified emails

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The 25 largest cybersecurity services firms based in Atlanta, United States

Ranked by team size

Top 25 of 139 company matches for cybersecurity services firms based in Atlanta, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Tekstream Solutions	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	178 contacts →
	Exact match “Headquartered in Atlanta, Georgia, TekStream is a digital resilience company that helps organizations modernize, secure, and optimize their technology environments.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	OSC Edge	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	150 contacts →
	Exact match “From CND in the Cloud to CSfC with Enterprise Remote Capabilities, OSC Edge empowers organizations with solutions that prepare them for today and tomorrow.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Scybers	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	89 contacts →
	Exact match “Scybers is a pure-play global cybersecurity firm.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Leapfrog Services	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	76 contacts →
	Exact match “Leapfrog offers outsourced managed IT + cybersecurity services that are scalable, aligned, and fit easily into your business model.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Xtreme Solutions INC	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	55 contacts →
	Exact match “Xtreme Solutions, Inc.(XSI) is a Service-Disabled Veteran-Owned, Woman-Owned Small Business (SDVOSB, WOSB) delivering advanced information technology, cybersecurity training, and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Century Solutions Group, INC	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	41 contacts →
	Exact match “For nearly 30 years, Century Solutions Group has helped small and mid-sized businesses across Atlanta improve security, productivity, and business growth through reliable Managed…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Fortuna Cysec	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	32 contacts →
	Exact match “Fortuna Cysec delivers a comprehensive security ecosystem that seamlessly integrates with your existing infrastructure, offering end-to-end protection with the flexibility to…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	RED Sentry	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	11-50	28 contacts →
	Exact match “Red Sentry delivers expert-led penetration testing to help businesses identify and fix security vulnerabilities before attackers can exploit them.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Genix Cyber	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	26 contacts →
	Exact match “Genix Cyber - Empowering Cybersecurity Excellence Welcome to Genix Cyber, a distinguished US-based advisory firm founded by former CISOs and Auditors.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Impac Labs	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	11-50	19 contacts →
	Exact match “Safeguard your clouds with complete visibility of every cyber asset.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	SYBA	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	18 contacts →
	Exact match “About Syba Syba is your smart, silent cyber-bodyguard, protecting you, your family, and your business from the digital threats of everyday life.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Hanabyte	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	11-50	15 contacts →
	Exact match “HanaByte is a cybersecurity consultancy offering comprehensive services such as cloud security, security engineering, and compliance advisory services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	NDNB	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	11-50	14 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Cyberdata Pros	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	11-50	13 contacts →
	Exact match “Keeping up with the changing data security and compliance requirements is a full-time job.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Serket-Tech Security	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	11-50	11 contacts →
	Exact match “Serket-Tech Security helps organizations transform compliance requirements into security advantages.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Odin Enterprises, LLC	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	10 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Sureshield	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	11-50	9 contacts →
	Exact match “SureShield serves leading healthcare, finance, defense, manufacturing, and other industries, as well as Managed Service Providers, focused on IT risk, security and compliance.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Adversarial Risk Management	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	1-10	8 contacts →
	Exact match “Adversarial Risk Management provides advisory services to cybersecurity startups and advisory work for fast-growing companies needing to establish an effective cyber program.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Black Breach Security Division ITS	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	8 contacts →
	Exact match “Since 2015, Black Breach has established itself as an experienced-based, client-driven cybersecurity consulting and special services firm.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	symbiosis.io	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	1-10	8 contacts →
	Exact match “Symbiosis.io: Securing the Future with Intelligent Convergence.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Pillar Technology Partners, LLC	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	1-10	7 contacts →
	Exact match “Pillar Technology Partners helps mid-sized organizations protect the data that matters most.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Efortresses, INC	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	1-10	7 contacts →
	Exact match “eFortresses, Inc.(a Gartner 2013 Cool Vendor) is a AI powered Cybersecurity SaaS company that allows our customers to self-assess, get validated, get trained, get certified, and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Imaginex	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	51-200	5 contacts →
	Exact match “ImagineX is a leading digital services firm whose mission is to help our clients and technologists to #BeBetter.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	The Onyx IT Group	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	11-50	5 contacts →
	Exact match “We are a managed security services provider with more than 25 years of experience providing innovative technology to businesses of all sizes.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	maxdefense.io	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	11-50	4 contacts →
	Exact match “MaxDefense LLC is a Managed Security Services Provider (MSSP) headquartered in Duluth, GA.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “cybersecurity services firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 139 cybersecurity services firms based in Atlanta, United States

See the full list, filter by size, metro and specialty, and access 467 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity services firms based in Atlanta, United States at a glance

As of Oct 1, 2026

41.4%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 139 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Atlanta, United States whose business descriptions match “cybersecurity services firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 467 professional contacts with verified work emails across the full matched dataset. 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 October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Cybersecurity services firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “cybersecurity services firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity services firms are there based in Atlanta, United States?

RevenueBase identified 139 company matches for cybersecurity services firms associated with Atlanta, United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Tekstream Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most cybersecurity services firms?

New York leads the United States with 276 company records, followed by Washington (154) and Austin (153). Atlanta has 139.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 467 professional contacts with verified work emails tracked across these 139 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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.