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, 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 25 largest residential security companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 38,634 | ||||
“Securitas knows Security.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | UnemployedPartial evidence | 4,038 | |||
“Excelsior Defense is a security and investigations company based out of St.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,592 | ||||
“U.S.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,174 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,045 | ||||
“Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,375 | ||||
“Guardsmark, LLC provides security services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | Vector SecurityPartial evidence | 1,287 | |||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,276 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,138 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,120 | ||||
“Per Mar Security Services is the largest full-service security solutions provider in the Midwest.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,062 | ||||
“Founded in 1982, St.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 885 | ||||
“DEFENDERS is a leader in the home security industry, providing safety and peace of mind to more than 1.5 million families nationwide.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 797 | ||||
“Bay Alarm is a family-owned national security company in operation since 1946.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 763 | ||||
“For more than 30 years, CPI Security has been a leader in customized home and business security and home automation services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 677 | ||||
“Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 636 | ||||
“PalAmerican Security is an industry-leading security provider, delivering customized programs across 44 states and employees.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 572 | ||||
“Alert 360 security is a trusted and best-in-class provider of reliable security solutions for homes and businesses.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 561 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 514 | ||||
“COMMITTED PEOPLE.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 440 | ||||
“AMAROK™ is a nationwide commercial security company specializing in comprehensive perimeter security using electric fencing and surveillance tools like cameras, lights, and alarms.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 417 | ||||
“At Kent, we’re able to pull from an unequaled pool of business and security products and services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 395 | ||||
“Tarian’s vision is to shape a future where safety and security are not only foundations for enduring success but also powerful catalysts.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 389 | ||||
“Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 376 | ||||
“Elite staffs events and facilities with professionals who create a safe and secure environment.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 338 | ||||
“iidon Security Associates provides premier security services catered to your company's needs.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
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, 2026Companies by employee count
Verified emails by last verification
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 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 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.
- 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 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, 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.
Residential security companies by metro
- Residential security companies in Los Angeles74
- Residential security companies in New York58
- Residential security companies in Houston50
- Residential security companies in Miami47
- Residential security companies in Dallas34
- Residential security companies in Atlanta27
- Residential security companies in Phoenix25
Frequently asked
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 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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