Company lists · Data refreshed September 2026

Top 25 Infrastructure security consulting companies based in Atlanta, United States

Name: Infrastructure security consulting 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 28, 2026 100 companies tracked

RevenueBase identified 100 infrastructure security consulting companies headquartered in Atlanta, United States as of September 2026 and tracks 918 professional contacts across them, including 326 with verified work emails. Across the United States, New York is the largest hub for this category (163 companies); Atlanta has 100.

This list covers infrastructure security consulting 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 28, 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 28, 2026 86% judged on-target in blind review

100Companies

918Contacts tracked

326Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest infrastructure security consulting companies based in Atlanta, United States

Ranked by team size

Top 25 of 100 infrastructure security consulting companies based in Atlanta, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure security consulting 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 28, 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 28, 2026
2	OSC Edge	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 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 28, 2026
3	Scybers	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	51-200	89 contacts →
	Indirect evidence “Scybers is a pure-play global cybersecurity firm.” Source: RevenueBase Database · checked Sep 28, 2026
4	Allnonesecurity	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	501-1,000	44 contacts →
	Partial evidence “Founded in 2001, ALL N ONE is one of the nation’s largest and most experienced, fully-certified security firms.” Source: RevenueBase Database · checked Sep 28, 2026
5	Genix Cyber	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	51-200	26 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 28, 2026
6	Purplebox, INC	Strong evidence	Atlanta, United StatesHQ checked Sep 28, 2026	11-50	26 contacts →
	Strong evidence “Secure Cloud Solutions Consulting and Managed Services PurpleBox Security Services include assessment, design, implementation and management of information security, compliance…” Source: RevenueBase Database · checked Sep 28, 2026
7	Hanabyte	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 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 28, 2026
8	Group Nine Risk Consulting	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1-10	15 contacts →
	Partial evidence “Our team of subject matter experts bring decades of global security experience in some of the most complex and austere environments around the planet.” Source: RevenueBase Database · checked Sep 28, 2026
9	NDNB	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect 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 28, 2026
10	Serket-Tech Security	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Serket-Tech Security helps organizations transform compliance requirements into security advantages.” Source: RevenueBase Database · checked Sep 28, 2026
11	Ardent Technologies	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1-10	9 contacts →
	Indirect evidence “We are an Information Technology Company that focuses in providing knowledge and technical solutions that address today's landscapes while meeting customer cooperate objectives.” Source: RevenueBase Database · checked Sep 28, 2026
12	Black Breach Security Division ITS	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 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 28, 2026
13	Pillar Technology Partners, LLC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 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 28, 2026
14	Imaginex	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	51-200	5 contacts →
	Indirect evidence “ImagineX is a leading digital services firm whose mission is to help our clients and technologists to #BeBetter.” Source: RevenueBase Database · checked Sep 28, 2026
15	Trustmarq Global Services, INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “Trustmarq provides strategic, tactical, and operational guidance to its clients.” Source: RevenueBase Database · checked Sep 28, 2026
16	Hacwatch	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Partial evidence “Delivers high quality innovative cyber security solutions that help protect clients from malicious activity.” Source: RevenueBase Database · checked Sep 28, 2026
17	Intellinetic Cyber Consultants	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	11-50	4 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 28, 2026
18	9op IT Solutions, LLC	Partial evidence	Atlanta, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “9op is a consulting organization focused on aligning and improving IT operations to meet the business objectives of organizations.” Source: RevenueBase Database · checked Sep 28, 2026
19	Count IT Done LLC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “We specialize in tackling security and safety challenges prevalent in corporate and industrial environments.” Source: RevenueBase Database · checked Sep 28, 2026
20	NET Reply US	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	51-200	3 contacts →
	Indirect evidence “Net Reply US is the Reply Group's company focused on helping organizations define and implement their Network strategy.” Source: RevenueBase Database · checked Sep 28, 2026
21	LOKX	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Trusted advisors and systems integrators in cybersecurity, cyber advisory services, advanced networking, and full-stack observability” Source: RevenueBase Database · checked Sep 28, 2026
22	Kailash	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Indirect evidence “Founded in 2020, Kailash is a specialized consultancy firm focused on cybersecurity, risk, and compliance services.” Source: RevenueBase Database · checked Sep 28, 2026
23	Opus Business Technologies	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Partial evidence “Opus is a cyber security firm headquartered out of Atlanta Georgia.” Source: RevenueBase Database · checked Sep 28, 2026
24	Stratigos Security	Strong evidence	Atlanta, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Strong evidence “Founded in 2012, Stratigos Security provides consulting services on information security programs, strategy, and policy for businesses of every size.” Source: RevenueBase Database · checked Sep 28, 2026
25	Firebrand Security Consulting	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “Firebrand Security Consulting is a professional services firm, specializing in cyber security.” Source: RevenueBase Database · checked Sep 28, 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: infrastructure security consulting 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 infrastructure security consulting companies.
Partial evidence: Its own public description names part of infrastructure security consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure security consulting 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 100 infrastructure security consulting companies based in Atlanta, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 326 reachable decision-makers.

Free signup · no credit card

View the full list →

Infrastructure security consulting companies based in Atlanta, United States at a glance

As of Sep 28, 2026

35.5%Verified-email coverage

9.2Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 100 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 infrastructure security consulting 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 “infrastructure security consulting 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 infrastructure security consulting 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 infrastructure security consulting 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, 326 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 28, 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.

Infrastructure security consulting 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 infrastructure security consulting 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 infrastructure security consulting companies are there based in Atlanta, United States?

RevenueBase identified 100 infrastructure security consulting 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 in the United States has the most infrastructure security consulting companies?

New York leads the United States with 163 headquartered companies, followed by Washington (104) and Atlanta (100).

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 326 verified decision-maker contacts tracked across these 100 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 100 infrastructure security consulting companies based in Atlanta, United States. Start with a free account, no credit card.

Download this list →

Related lists

Infrastructure security consulting companies by geography

Browse the directory

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.