Company lists · Data refreshed September 2026

Top 25 Data center security services based in the United States

RevenueBase identified 2,067 data center security services headquartered in the United States as of September 2026 and tracks 98,928 professional contacts across them, including 12,583 with verified work emails and 31,034 with mobile numbers. New York is the largest hub.

This list covers data center security services headquartered in the 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
2,067Companies
98,928Contacts tracked
12,583Verified emails
31,034Mobile numbers
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The 25 largest data center security services based in the United States

Ranked by team size
Top 25 of 2,067 data center security services based in the United States, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to data center security services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceBoise, ID, United States10001+38,650 contacts →

Partial evidence

Securitas knows Security.”

Source: RevenueBase Database · checked Sep 1, 2026
2Indirect evidenceSalt Lake City, UT, United States10001+3,600 contacts →

Indirect evidence

“U.S.”

Source: RevenueBase Database · checked Sep 1, 2026
3Partial evidenceIrving, TX, United States1,001-5,0002,022 contacts →

Partial evidence

“Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.”

Source: RevenueBase Database · checked Sep 1, 2026
4Partial evidenceHerndon, VA, United States10001+1,946 contacts →

Partial evidence

“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…”

Source: RevenueBase Database · checked Sep 1, 2026
5Partial evidenceNew Orleans, LA, United States1,001-5,0001,389 contacts →

Partial evidence

“Weiser Security Services is the 11th largest security service provider in the U.S.”

Source: RevenueBase Database · checked Sep 1, 2026
6Partial evidenceNew York, NY, United States10001+1,375 contacts →

Partial evidence

“Guardsmark, LLC provides security services.”

Source: RevenueBase Database · checked Sep 1, 2026
7Partial evidenceDothan, AL, United States1,001-5,0001,186 contacts →

Partial evidence

“DSI Security Services offers armed and unarmed uniformed security guard services.”

Source: RevenueBase Database · checked Sep 1, 2026
8Partial evidenceChicago, IL, United States1,001-5,0001,133 contacts →

Partial evidence

“At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.”

Source: RevenueBase Database · checked Sep 1, 2026
9Partial evidenceCharlotte, NC, United States501-1,000850 contacts →

Partial evidence

Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.”

Source: RevenueBase Database · checked Sep 1, 2026
10Partial evidenceUniontown, OH, United States10001+846 contacts →

Partial evidence

Securitas knows Security.”

Source: RevenueBase Database · checked Sep 1, 2026
11Partial evidenceWestwood, MA, United States1,001-5,000744 contacts →

Partial evidence

“Improving Security.”

Source: RevenueBase Database · checked Sep 1, 2026
12Partial evidenceSacramento, CA, United States501-1,000630 contacts →

Partial evidence

“As one of North America’s largest independent security superfirms, PalAmerican is a smart choice when looking for your security partner.”

Source: RevenueBase Database · checked Sep 1, 2026
13Strong evidenceMonroe, LA, United States501-1,000572 contacts →

Strong evidence

“Interface Systems combines AI-powered technologies with expert remote video monitoring from its US-based Interactive Security Operations Centers (iSOCs).”

Source: RevenueBase Database · checked Sep 1, 2026
14Partial evidenceBethesda, MD, United States501-1,000542 contacts →

Partial evidence

“Brivo is the global leader in cloud-native physical security, with more than 2 million devices deployed across locations in 80 countries.”

Source: RevenueBase Database · checked Sep 1, 2026
15Partial evidenceNew York, NY, United States501-1,000518 contacts →

Partial evidence

“Mulligan is a Manhattan-based provider of the finest security and fire safety professionals available.”

Source: RevenueBase Database · checked Sep 1, 2026
16Partial evidenceAbu Dhabi, United States10001+488 contacts →

Partial evidence

Securitas has operated in the United Arab Emirates since 2009.”

Source: RevenueBase Database · checked Sep 1, 2026
17Partial evidenceNorth Miami Beach, FL, United States1,001-5,000418 contacts →

Partial evidence

“At Kent, we’re able to pull from an unequaled pool of business and security products and services.”

Source: RevenueBase Database · checked Sep 1, 2026
18Partial evidenceBoston, MA, United States1,001-5,000409 contacts →

Partial evidence

“United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.”

Source: RevenueBase Database · checked Sep 1, 2026
19Partial evidenceOmaha, NE, United States1,001-5,000404 contacts →

Partial evidence

“American Security & Investigations has provided security and investigative services throughout the upper midwest since 1959.”

Source: RevenueBase Database · checked Sep 1, 2026
20Partial evidenceCherry Hill, NJ, United States501-1,000298 contacts →

Partial evidence

“At Protos Security we believe in a modern security experience that never settles and dynamically adapts to the evolving needs of businesses.”

Source: RevenueBase Database · checked Sep 1, 2026
21Partial evidencePlantation, FL, United States1,001-5,000273 contacts →

Partial evidence

“Welcome to Doyle Security Services (DSS) where a team of responsive security professionals stands ready to meet your needs in this ever-changing business environment.”

Source: RevenueBase Database · checked Sep 1, 2026
22Partial evidenceOntario, CA, United States501-1,000271 contacts →

Partial evidence

“GSG Protective Services is a full-service provider of quality security services specializing in 6 divisions: investigations, physical security, protective services, technology…”

Source: RevenueBase Database · checked Sep 1, 2026
23Indirect evidenceEden Prairie, MN, United States501-1,000239 contacts →

Indirect evidence

“OneNeck is now US Signal.”

Source: RevenueBase Database · checked Sep 1, 2026
24Partial evidenceSan Antonio, TX, United States501-1,000238 contacts →

Partial evidence

“GuardTexas is a Texas-owned security services provider delivering professional, dependable protection since 1976.”

Source: RevenueBase Database · checked Sep 1, 2026
25Strong evidenceCoppell, TX, United States501-1,000237 contacts →

Strong evidence

“Headquartered in Dallas, Centersquare (formerly Evoque+Cyxtera) specializes in delivering a comprehensive suite of colocation and data center services.”

Source: RevenueBase Database · checked Sep 1, 2026

Showing 25 of 2,067 data center security services based in the United States

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Data center security services based in the United States at a glance

As of Sep 1, 2026
12.7%Verified-email coverage
31.4%Mobile-number coverage
47.9Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · New York
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
816
11-50
753
51-200
292
201-500
96
501-1,000
54
1,001-5,000
29
10001+
13

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 data center security services, 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 the United States whose own description of what they do matches “data center security services”. 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 data center security services), 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 data center security services, and records with no verified work email. Companies headquartered outside United States 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, 12,583 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 1, 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.

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 data center security services, 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 data center security services are there based in the United States?

RevenueBase identified 2,067 data center security services headquartered in the 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?

Securitas Security Services Usa, INC, headquartered in Boise, tops this list with the largest team on record.

Which city has the most data center security services?

New York leads with 51 headquartered companies, followed by Dallas (49) and Houston (48).

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 12,583 verified decision-maker contacts tracked across these 2,067 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 1, 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.