Company lists · Data refreshed September 2026
Top 25 Managed IT security service providers based in Atlanta, United States
RevenueBase identified 73 managed IT security service providers headquartered in Atlanta, United States as of September 2026 and tracks 1,655 professional contacts across them, including 665 with verified work emails. New York is the largest hub.
This list covers managed IT security service providers 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.
The 25 largest managed IT security service providers based in Atlanta, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 944 contacts → | ||||
Strong evidence “Secureworks, a Sophos Company, empowers organizations worldwide with advanced Managed Detection and Response (MDR) services, our security operations platform Taegis XDR, and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 89 contacts → | ||||
Indirect evidence “Scybers is a pure-play global cybersecurity firm.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 43 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 41 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 40 contacts → | ||||
Strong evidence “Cortavo is a managed IT services provider built for growing small and mid-sized organizations that need a simpler, more reliable way to manage their technology.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 32 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 26 contacts → | ||||
Partial evidence “IT for the People.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 11 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 9 contacts → | ||||
Strong evidence “SureShield serves leading healthcare, finance, defense, manufacturing, and other industries, as well as Managed Service Providers, focused on IT risk, security and compliance.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 9 contacts → | ||||
Partial evidence “Bitstream is a Managed Services Provider that specializes in designing, building, and maintaining secure and scalable computer networks.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 8 contacts → | ||||
Strong evidence “At SaferWay Technologies, we specialize in providing comprehensive Managed IT Services designed to meet the unique needs of modern businesses.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 8 contacts → | ||||
Strong evidence “PlexHosted is a Microsoft CSP Partner and Managed Security Services Provider supporting healthcare and regulated organizations across the United States and Europe.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Partial evidence “For over 35 years, DataTrends has helped businesses stop fighting their technology and start relying on it.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Partial evidence “What are your biggest IT or technology challenges right now?” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Strong evidence “We are a managed security services provider with more than 25 years of experience providing innovative technology to businesses of all sizes.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Strong evidence “XOGENT is an IT Managed Security and Service provider.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Strong evidence “MaxDefense LLC is a Managed Security Services Provider (MSSP) headquartered in Duluth, GA.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Partial evidence “Delivers high quality innovative cyber security solutions that help protect clients from malicious activity.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Strong evidence “Teamlogic IT - Atlanta Midtown focuses on managed IT services, cybersecurity services, compliance, technology consulting, IT support, IT services, business applications, network…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Partial evidence “Welcome to 404 Network Ninjas, Atlanta's cutting-edge Managed Service Provider (MSP).” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: managed IT security service providers. 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 managed IT security service providers.
- Partial evidence
- Its own public description names part of managed IT security service providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name managed IT security service providers. 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 73 managed IT security service providers based in Atlanta, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 665 reachable decision-makers.
Free signup · no credit card
Managed IT security service providers based in Atlanta, United States at a glance
As of Sep 21, 2026Companies by employee count
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 73 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 IT security service providers, 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 “managed IT security service providers”. 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 managed IT security service providers), 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 managed IT security service providers, 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, 665 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.
Managed IT security service providers by metro in the United States
- Managed IT security service providers in New York160
- Managed IT security service providers in Houston111
- Managed IT security service providers in Miami84
- Managed IT security service providers in Austin79
- Managed IT security service providers in Dallas75
- Managed IT security service providers in Atlanta73
- Managed IT security service providers in Chicago70
- Managed IT security service providers in Tampa66
- Managed IT security service providers in Los Angeles49
- Managed IT security service providers in San Francisco49
- Managed IT security service providers in Charlotte46
- Managed IT security service providers in San Diego45
- Managed IT security service providers in Denver44
- Managed IT security service providers in Las Vegas41
- Managed IT security service providers in Washington41
- Managed IT security service providers in Phoenix40
- Managed IT security service providers in Irvine39
- Managed IT security service providers in San Antonio34
- Managed IT security service providers in Alexandria31
- Managed IT security service providers in Scottsdale31
- Managed IT security service providers in Columbia30
- Managed IT security service providers in Portland30
- Managed IT security service providers in Wilmington30
- Managed IT security service providers in Boston29
- Managed IT security service providers in Orlando28
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 managed IT security service providers, 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 managed IT security service providers are there based in Atlanta, United States?
RevenueBase identified 73 managed IT security service providers 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 IT security service providers?
New York leads with 160 headquartered companies, followed by Houston (111) and Miami (84).
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 665 verified decision-maker contacts tracked across these 73 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.
Ready to reach these companies? Verified emails and direct dials for all 73 managed IT security service providers based in Atlanta, United States. Start with a free account, no credit card.
Download this list →Related lists
Managed IT security service providers by geography
- Managed IT security service providers based in Brisbane, Australia
- Managed IT security service providers based in Melbourne, Australia
- Managed IT security service providers based in Sydney, Australia
- Managed IT security service providers based in Calgary, Canada
- Managed IT security service providers based in Edmonton, Canada
- Managed IT security service providers based in Mississauga, Canada
- Managed IT security service providers based in Montreal, Canada
- Managed IT security service providers based in Ottawa, Canada
- Managed IT security service providers based in Toronto, Canada
- Managed IT security service providers based in Vancouver, Canada
- Managed IT security service providers based in Ahmedabad, India
- Managed IT security service providers based in Bangalore, India
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Managed IT security service providers based in Brisbane, Australia
- Managed IT security service providers based in Melbourne, Australia
- Managed IT security service providers based in Sydney, Australia
- Managed IT security service providers based in Calgary, Canada
- Managed IT security service providers based in Edmonton, Canada
- Managed IT security service providers based in Mississauga, Canada