Company lists · Data refreshed September 2026

Top 25 Residential security companies based in the United States

RevenueBase identified 2,855 residential security companies headquartered in the United States as of September 2026 and tracks 98,942 professional contacts across them, including 9,971 with verified work emails and 30,309 with mobile numbers. Los Angeles is the largest hub.

This list covers residential security companies 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 5, 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 5, 2026 86% judged on-target in blind review
2,855Companies
98,942Contacts tracked
9,971Verified emails
30,309Mobile numbers
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The 25 largest residential security companies based in the United States

Ranked by team size
Top 25 of 2,855 residential security companies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to residential security 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceParsippany, NJ, United StatesHQ checked Sep 5, 202610001+38,634 contacts →

Partial evidence

“Securitas knows Security.”

Source: RevenueBase Database · checked Sep 5, 2026
2Partial evidenceSt. Petersburg, FL, United StatesHQ checked Sep 5, 2026n/a4,038 contacts →

Partial evidence

“Excelsior Defense is a security and investigations company based out of St.”

Source: RevenueBase Database · checked Sep 5, 2026
3Indirect evidenceRoswell, GA, United StatesHQ checked Sep 5, 202610001+3,592 contacts →

Indirect evidence

“U.S.”

Source: RevenueBase Database · checked Sep 5, 2026
4Partial evidenceChattanooga, TN, United StatesHQ checked Sep 5, 20265,001-10,0002,174 contacts →

Partial evidence

“Through an ISO® 9001:2015 Certified Quality Management System (QMS), Walden Security has earned an award-winning reputation for business excellence and employee satisfaction…”

Source: RevenueBase Database · checked Sep 5, 2026
5Partial evidenceIrving, TX, United StatesHQ checked Sep 5, 20261,001-5,0002,045 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 5, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Sep 5, 202610001+1,375 contacts →

Partial evidence

“Guardsmark, LLC provides security services.”

Source: RevenueBase Database · checked Sep 5, 2026
7Partial evidenceWarrendale, PA, United StatesHQ checked Sep 5, 20261,001-5,0001,287 contacts →

Partial evidence

“Vector Security® has protected people and property by providing intelligent security solutions tailored to the needs of the customer for more than 50 years.”

Source: RevenueBase Database · checked Sep 5, 2026
8Partial evidenceNorth Kansas City, MO, United StatesHQ checked Sep 5, 20261,001-5,0001,276 contacts →

Partial evidence

“Established in Safe Haven Security has grown to become the nation’s largest ADT-authorized dealer, trusted by homeowners and businesses across the country.”

Source: RevenueBase Database · checked Sep 5, 2026
9Partial evidenceChicago, IL, United StatesHQ checked Sep 5, 20261,001-5,0001,138 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 5, 2026
10Partial evidenceDavenport, IA, United StatesHQ checked Sep 5, 20261,001-5,0001,120 contacts →

Partial evidence

“Per Mar Security Services is the largest full-service security solutions provider in the Midwest.”

Source: RevenueBase Database · checked Sep 5, 2026
11Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 5, 20265,001-10,0001,062 contacts →

Indirect evidence

“Founded in 1982, St.”

Source: RevenueBase Database · checked Sep 5, 2026
12Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 5, 20261,001-5,000885 contacts →

Partial evidence

“DEFENDERS is a leader in the home security industry, providing safety and peace of mind to more than 1.5 million families nationwide.”

Source: RevenueBase Database · checked Sep 5, 2026
13Partial evidenceConcord, CA, United StatesHQ checked Sep 5, 20261,001-5,000797 contacts →

Partial evidence

“Bay Alarm is a family-owned national security company in operation since 1946.”

Source: RevenueBase Database · checked Sep 5, 2026
14Partial evidenceCharlotte, NC, United StatesHQ checked Sep 5, 2026501-1,000763 contacts →

Partial evidence

“For more than 30 years, CPI Security has been a leader in customized home and business security and home automation services.”

Source: RevenueBase Database · checked Sep 5, 2026
15Partial evidenceWarrendale, PA, United StatesHQ checked Sep 5, 2026501-1,000677 contacts →

Partial evidence

“Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies.”

Source: RevenueBase Database · checked Sep 5, 2026
16Partial evidenceSt. Petersburg, FL, United StatesHQ checked Sep 5, 202610001+636 contacts →

Partial evidence

“PalAmerican Security is an industry-leading security provider, delivering customized programs across 44 states and employees.”

Source: RevenueBase Database · checked Sep 5, 2026
17Partial evidenceTulsa, TX, United StatesHQ checked Sep 5, 2026501-1,000572 contacts →

Partial evidence

“Alert 360 security is a trusted and best-in-class provider of reliable security solutions for homes and businesses.”

Source: RevenueBase Database · checked Sep 5, 2026
18Strong evidenceBoca Raton, FL, United StatesHQ checked Sep 5, 2026501-1,000561 contacts →

Strong evidence

“ADT Inc, formerly The ADT Corporation, is an American company that provides residential, small and large business electronic security, fire protection, and other related alarm…”

Source: RevenueBase Database · checked Sep 5, 2026
19Indirect evidenceRichardson, TX, United StatesHQ checked Sep 5, 20261,001-5,000514 contacts →

Indirect evidence

“COMMITTED PEOPLE.”

Source: RevenueBase Database · checked Sep 5, 2026
20Partial evidenceColumbia, SC, United StatesHQ checked Sep 5, 2026201-500440 contacts →

Partial evidence

“AMAROK™ is a nationwide commercial security company specializing in comprehensive perimeter security using electric fencing and surveillance tools like cameras, lights, and alarms.”

Source: RevenueBase Database · checked Sep 5, 2026
21Partial evidenceNorth Miami Beach, FL, United StatesHQ checked Sep 5, 20261,001-5,000417 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 5, 2026
22Partial evidenceLouisville, KY, United StatesHQ checked Sep 5, 20265,001-10,000395 contacts →

Partial evidence

“Tarian’s vision is to shape a future where safety and security are not only foundations for enduring success but also powerful catalysts.”

Source: RevenueBase Database · checked Sep 5, 2026
23Partial evidenceSouthfield, MI, United StatesHQ checked Sep 5, 2026501-1,000389 contacts →

Partial evidence

“Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.”

Source: RevenueBase Database · checked Sep 5, 2026
24Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 5, 20265,001-10,000376 contacts →

Indirect evidence

“Elite staffs events and facilities with professionals who create a safe and secure environment.”

Source: RevenueBase Database · checked Sep 5, 2026
25Partial evidenceDallas, TX, United StatesHQ checked Sep 5, 2026501-1,000338 contacts →

Partial evidence

“iidon Security Associates provides premier security services catered to your company's needs.”

Source: RevenueBase Database · checked Sep 5, 2026

Showing 25 of 2,855 residential security companies based in the United States

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Residential security companies based in the United States at a glance

As of Sep 5, 2026
10.1%Verified-email coverage
30.6%Mobile-number coverage
34.7Average contacts per company
11-50Median size (employees)
2.6%Largest-city concentration · Los Angeles
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
1,128
11-50
992
51-200
482
201-500
127
501-1,000
61
1,001-5,000
33
5,001-10,000
8
10001+
9

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 residential security 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 the United States whose own description of what they do matches “residential security 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 residential security 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 residential security companies, 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, 9,971 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.

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 residential security 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 residential security companies are there based in the United States?

RevenueBase identified 2,855 residential security companies 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 Parsippany, tops this list with the largest team on record.

Which city has the most residential security companies?

Los Angeles leads with 74 headquartered companies, followed by New York (58) and Houston (50).

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 9,971 verified decision-maker contacts tracked across these 2,855 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 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.