Company lists · Data refreshed September 2026
Top 10 Security companies for buildings based in Atlanta, United States
RevenueBase identified 32 security companies for buildings headquartered in Atlanta, United States as of September 2026 and tracks 1,105 professional contacts across them, including 40 with verified work emails. New York is the largest hub.
This list covers security companies for buildings 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 6, 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 10 largest security companies for buildings based in Atlanta, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 782 | ||||
“Now part of Allied Universal.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 54 | ||||
“Carter Brothers was founded in by 2013 NFL Hall of Fame Inductee, Chairman, Cris Carter and his brother, John F.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 44 | ||||
“Founded in 2001, ALL N ONE is one of the nation’s largest and most experienced, fully-certified security firms.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Thorpe EnterprisesIndirect evidence | 43 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 27 | ||||
“Unitus Security is Georgia's Premier Security Guard Service for Class A commercial and mixed use properties.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 23 | ||||
“Hexagon Security is pioneering the integrated security services sector servicing Atlanta, Georgia.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 18 | ||||
“PM Security Permitting provides expert consulting and permitting services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Verified SecurityPartial 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 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 4 | ||||
“With over 25 years of expertise in the security industry, we're not just a provider; we're your partner in safeguarding what's most important to you.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 6, 2026Thanks. The Data Team will review it. | |||||
Showing 10 of 32 security companies for buildings based in Atlanta, United States
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Security companies for buildings based in Atlanta, United States at a glance
As of Sep 6, 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 32 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 security companies for buildings, 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 “security companies for buildings”. 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 security companies for buildings, 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, 40 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 6, 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.
Security companies for buildings by metro in the United States
- Security companies for buildings in New York114
- Security companies for buildings in Los Angeles95
- Security companies for buildings in Houston75
- Security companies for buildings in Dallas61
- Security companies for buildings in Miami61
- Security companies for buildings in Chicago38
- Security companies for buildings in Atlanta32
- Security companies for buildings in Phoenix29
- Security companies for buildings in Austin27
Frequently asked
How many security companies for buildings are there based in Atlanta, United States?
RevenueBase identified 32 security companies for buildings 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?
Securamerica, headquartered in Atlanta, tops this list with the largest team on record.
Which city has the most security companies for buildings?
New York leads with 114 headquartered companies, followed by Los Angeles (95) and Houston (75).
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 40 verified decision-maker contacts tracked across these 32 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 6, 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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