Company lists · Data refreshed September 2026

Top 25 Cybersecurity IT companies based in Atlanta, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 126 companies tracked

RevenueBase identified 126 cybersecurity IT companies headquartered in Atlanta, United States as of September 2026 and tracks 1,233 professional contacts across them, including 499 with verified work emails. New York is the largest hub.

This list covers cybersecurity IT 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, 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

126Companies

1,233Contacts tracked

499Verified emails

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The 25 largest cybersecurity IT companies based in Atlanta, United States

Ranked by team size

Top 25 of 126 cybersecurity IT companies 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 cybersecurity IT companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Tekstream Solutions	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	178 contacts →
	Indirect evidence “Headquartered in Atlanta, Georgia, TekStream is a digital resilience company that helps organizations modernize, secure, and optimize their technology environments.” Source: RevenueBase Database · checked Sep 21, 2026
2	Adapture	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	171 contacts →
	Indirect evidence “Remaining at the forefront of emerging technology is challenging.” Source: RevenueBase Database · checked Sep 21, 2026
3	OSC Edge	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	150 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 21, 2026
4	Scybers	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	89 contacts →
	Partial evidence “Scybers is a pure-play global cybersecurity firm.” Source: RevenueBase Database · checked Sep 21, 2026
5	Leapfrog Services	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	76 contacts →
	Strong evidence “Leapfrog offers outsourced managed IT + cybersecurity services that are scalable, aligned, and fit easily into your business model.” Source: RevenueBase Database · checked Sep 21, 2026
6	Xtreme Solutions INC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	55 contacts →
	Partial evidence “Xtreme Solutions, Inc.(XSI) is a Service-Disabled Veteran-Owned, Woman-Owned Small Business (SDVOSB, WOSB) delivering advanced information technology, cybersecurity training, and…” Source: RevenueBase Database · checked Sep 21, 2026
7	Century Solutions Group, INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	41 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
8	Fortuna Cysec	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	32 contacts →
	Indirect 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
9	Genix Cyber	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	26 contacts →
	Partial 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 21, 2026
10	Impac Labs	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “Safeguard your clouds with complete visibility of every cyber asset.” Source: RevenueBase Database · checked Sep 21, 2026
11	SYBA	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	18 contacts →
	Indirect evidence “About Syba Syba is your smart, silent cyber-bodyguard, protecting you, your family, and your business from the digital threats of everyday life.” Source: RevenueBase Database · checked Sep 21, 2026
12	Hanabyte	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “HanaByte is a cybersecurity consultancy offering comprehensive services such as cloud security, security engineering, and compliance advisory services.” Source: RevenueBase Database · checked Sep 21, 2026
13	NDNB	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
14	Serket-Tech Security	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “Serket-Tech Security helps organizations transform compliance requirements into security advantages.” Source: RevenueBase Database · checked Sep 21, 2026
15	Adversarial Risk Management	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	8 contacts →
	Partial evidence “Adversarial Risk Management provides advisory services to cybersecurity startups and advisory work for fast-growing companies needing to establish an effective cyber program.” Source: RevenueBase Database · checked Sep 21, 2026
16	Black Breach Security Division ITS	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	8 contacts →
	Partial evidence “Since 2015, Black Breach has established itself as an experienced-based, client-driven cybersecurity consulting and special services firm.” Source: RevenueBase Database · checked Sep 21, 2026
17	Pillar Technology Partners, LLC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	7 contacts →
	Indirect evidence “Pillar Technology Partners helps mid-sized organizations protect the data that matters most.” Source: RevenueBase Database · checked Sep 21, 2026
18	Univirtual Solutions, INC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	7 contacts →
	Partial evidence “Feel like you've outgrown your IT services provider?” Source: RevenueBase Database · checked Sep 21, 2026
19	maxdefense.io	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	4 contacts →
	Indirect evidence “MaxDefense LLC is a Managed Security Services Provider (MSSP) headquartered in Duluth, GA.” Source: RevenueBase Database · checked Sep 21, 2026
20	Stratefi-It, LLC	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	4 contacts →
	Strong evidence “At STRATEFI-IT, we help businesses regain control of their technology by delivering proactive, cost-effective managed IT and cybersecurity services.” Source: RevenueBase Database · checked Sep 21, 2026
21	Hacwatch	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	4 contacts →
	Indirect evidence “Delivers high quality innovative cyber security solutions that help protect clients from malicious activity.” Source: RevenueBase Database · checked Sep 21, 2026
22	Alphacis Atlanta IT Consulting & Managed Services	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Strong evidence “AlphaCIS is an Atlanta based Managed IT service provider for SMB seeking a reliable technology partner to help with IT projects, ongoing managed IT services, Cybersecurity, and…” Source: RevenueBase Database · checked Sep 21, 2026
23	Intellinetic Cyber Consultants	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	4 contacts →
	Indirect 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 21, 2026
24	stealthnet.ai	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “StealthNet AI is a technology driven cybersecurity company founded by offensive security professionals with real world testing backgrounds.” Source: RevenueBase Database · checked Sep 21, 2026
25	Information Secured	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	201-500	3 contacts →
	Partial evidence “Information Secured is a certified minority-owned, technology reseller & services company, that specializes in navigating and mastering the complexities of cybersecurity.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity IT companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity IT companies.
Partial evidence: Its own public description names part of cybersecurity IT companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity IT companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 126 cybersecurity IT companies based in Atlanta, United States

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Cybersecurity IT companies based in Atlanta, United States at a glance

As of Sep 21, 2026

40.5%Verified-email coverage

9.8Average contacts per company

1-10Median size (employees)

194.4%Largest-city concentration · New York

Sep 21, 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 126 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 cybersecurity IT companies, 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 “cybersecurity IT companies”. 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 cybersecurity IT companies), 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 cybersecurity IT 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 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, 499 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.

Cybersecurity IT companies by metro in the United States

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 cybersecurity IT companies, 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 cybersecurity IT companies are there based in Atlanta, United States?

RevenueBase identified 126 cybersecurity IT 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?

Tekstream Solutions, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most cybersecurity IT companies?

New York leads with 245 headquartered companies, followed by Houston (140) and Austin (131).

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 499 verified decision-maker contacts tracked across these 126 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.