Company lists · Data refreshed September 2026
Top 24 Managed security services companies based in Atlanta, United States
RevenueBase identified 60 managed security services companies headquartered in Atlanta, United States as of September 2026 and tracks 1,530 professional contacts across them, including 580 with verified work emails. New York is the largest hub.
This list covers managed security services 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 24 largest managed security services companies based in Atlanta, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 944 | ||||
“Secureworks, a Sophos Company, empowers organizations worldwide with advanced Managed Detection and Response (MDR) services, our security operations platform Taegis XDR, and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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. | |||||
| 3 | ScybersIndirect evidence | 89 | |||
“Scybers is a pure-play global cybersecurity firm.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 76 | ||||
“Leapfrog offers outsourced managed IT + cybersecurity services that are scalable, aligned, and fit easily into your business model.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | Versprite CybersecurityStrong evidence | 43 | |||
“VerSprite was created to fill a void in the area of security managed services where most firms continued to sell security products and services based upon compliance fear factor…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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. | |||||
| 7 | 23 | ||||
“Hexagon Security is pioneering the integrated security services sector servicing Atlanta, Georgia.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 18 | ||||
“About Syba Syba is your smart, silent cyber-bodyguard, protecting you, your family, and your business from the digital threats of everyday life.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | Verified SecurityStrong evidence | 11 | |||
“We are a Managed Services Security Provider that designs, installs, and services security and fire alarm systems, access control systems, and video surveillance systems.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | Saferway TechnologiesPartial evidence | 8 | |||
“At SaferWay Technologies, we specialize in providing comprehensive Managed IT Services designed to meet the unique needs of modern businesses.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | Plexhosted LLCStrong evidence | 8 | |||
“PlexHosted is a Microsoft CSP Partner and Managed Security Services Provider supporting healthcare and regulated organizations across the United States and Europe.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 | ||||
“For over 35 years, DataTrends has helped businesses stop fighting their technology and start relying on it.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 | ||||
“We are a managed security services provider with more than 25 years of experience providing innovative technology to businesses of all sizes.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | XogentStrong evidence | 4 | |||
“XOGENT is an IT Managed Security and Service provider.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | maxdefense.ioStrong evidence | 4 | |||
“MaxDefense LLC is a Managed Security Services Provider (MSSP) headquartered in Duluth, GA.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | Stratefi-It, LLCPartial evidence | 4 | |||
“At STRATEFI-IT, we help businesses regain control of their technology by delivering proactive, cost-effective managed IT and cybersecurity services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 | ||||
“Pritchard Global Alliance is a security-focused company based in Atlanta, GA, specializing in comprehensive security guard and surveillance services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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. | |||||
| 19 | 4 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 | ||||
“Welcome to 404 Network Ninjas, Atlanta's cutting-edge Managed Service Provider (MSP).” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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. | |||||
| 22 | 2 | ||||
“Firebrand Security Consulting is a professional services firm, specializing in cyber security.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 | ||||
“At TechCompass, we specialize in guiding businesses through the complexities of technology use, ensuring your digital operations are secure, effective, and perfectly aligned with…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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. | |||||
Showing 24 of 60 managed security services companies based in Atlanta, United States
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Managed security services 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 60 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 managed security services 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 “managed security services 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 managed security services 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, 580 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.
Managed security services companies by metro in the United States
- Managed security services companies in New York103
- Managed security services companies in Houston85
- Managed security services companies in Miami81
- Managed security services companies in Austin65
- Managed security services companies in Chicago64
- Managed security services companies in Dallas63
- Managed security services companies in Atlanta60
- Managed security services companies in Los Angeles57
- Managed security services companies in Tampa47
- Managed security services companies in San Francisco43
- Managed security services companies in Washington43
- Managed security services companies in Charlotte39
- Managed security services companies in Las Vegas38
- Managed security services companies in San Diego37
- Managed security services companies in Denver35
- Managed security services companies in Phoenix34
- Managed security services companies in Irvine30
- Managed security services companies in Arlington26
- Managed security services companies in Columbia26
- Managed security services companies in Orlando26
- Managed security services companies in Scottsdale25
- Managed security services companies in Wilmington25
Frequently asked
How many managed security services companies are there based in Atlanta, United States?
RevenueBase identified 60 managed security services 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?
Secureworks, headquartered in Atlanta, tops this list with the largest team on record.
Which city has the most managed security services companies?
New York leads with 103 headquartered companies, followed by Houston (85) and Miami (81).
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 580 verified decision-maker contacts tracked across these 60 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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