Company lists · Data refreshed September 2026
Top 25 Residential security services based in the United States
RevenueBase identified 2,145 residential security services headquartered in the United States as of September 2026 and tracks 103,696 professional contacts across them, including 12,602 with verified work emails and 31,611 with mobile numbers. Houston is the largest hub.
This list covers residential 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 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.
The 25 largest residential security services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 38,634 contacts → | ||||
Partial evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 20,475 contacts → | ||||
Partial evidence “ADT is the most trusted name in smart home security, helping protect and connect what matters most at home and beyond.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 4,038 contacts → | ||||
Partial evidence “Excelsior Defense is a security and investigations company based out of St.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,174 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,045 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,406 contacts → | ||||
Partial evidence “As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,287 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,276 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,220 contacts → | ||||
Indirect evidence “Brinks Home, headquartered in Dallas, Texas, stands for platinum-grade protection.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,138 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,120 contacts → | ||||
Partial evidence “Per Mar Security Services is the largest full-service security solutions provider in the Midwest.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 885 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 797 contacts → | ||||
Partial evidence “Bay Alarm is a family-owned national security company in operation since 1946.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 763 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 677 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 572 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, 2026Thanks. The Data Team will review it. | |||||
| 17 | 519 contacts → | ||||
Partial evidence “Mulligan is a Manhattan-based provider of the finest security and fire safety professionals available.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 490 contacts → | ||||
Indirect evidence “Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 389 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, 2026Thanks. The Data Team will review it. | |||||
| 20 | 324 contacts → | ||||
Partial evidence “Headquartered in Nashville, TN, with branches throughout the Southeastern United States, ADS Security, a Vector Security company, is the 20th largest electronic security company…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 312 contacts → | ||||
Indirect evidence “Headquartered in Williamstown, NJ, COPS Monitoring is a leading provider of professional monitoring services in North America with comprehensive redundancy.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 302 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 301 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 288 contacts → | ||||
Partial evidence “Alliance Security is an award-winning, industry leader in both home security and smart home technology, offering customers the most advanced, professionally installed technologies…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 225 contacts → | ||||
Indirect evidence “Family owned and operated since 1968, Alarm Detection Systems, Inc.(ADS) understands that nothing is more important than the safety of your family and the protection of your…” Source: RevenueBase Database · checked Sep 5, 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: residential security services. 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 residential security services.
- Partial evidence
- Its own public description names part of residential security services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name residential security services. 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 2,145 residential security services based in the United States
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Residential security services based in the United States at a glance
As of Sep 5, 2026Companies by employee count
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 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 “residential 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 residential 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 residential 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, 12,602 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 services by metro
- Residential security services in Houston33
- Residential security services in Los Angeles33
- Residential security services in Miami32
- Residential security services in New York32
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 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 residential security services are there based in the United States?
RevenueBase identified 2,145 residential 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 Parsippany, tops this list with the largest team on record.
Which city has the most residential security services?
Houston leads with 33 headquartered companies, followed by Los Angeles (33) and Miami (32).
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 12,602 verified decision-maker contacts tracked across these 2,145 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.
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