Company lists · Data refreshed November 2026

Top 25 Alarm response services worldwide

RevenueBase identified 4,017 company matches for alarm response services worldwide as of November 2026 and tracks 63,597 professional contacts across them, including 9,792 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for alarm response services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for alarm response services follow the table.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
4,017Companies
63,597Contacts tracked
9,792Verified emails
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The 25 largest alarm response services worldwide

Ranked by team size
Top 25 of 4,017 company matches for alarm response services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchGlobal Hq - Versoix, GermanyHQ recorded Nov 6, 202610001+16,176 contacts →

Exact match

“Verisure is the global leader in professionally monitored security services by customers served, with a market-leading presence across Europe and Latin America and number one…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 20261,001-5,0002,367 contacts →

Exact match

“Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWarrendale, PA, United StatesHQ recorded Nov 6, 2026501-1,000721 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchOwen Sound, NL, CanadaHQ recorded Nov 6, 20261,001-5,000644 contacts →

Exact match

“We are Canada's complete fire alarm and suppression, signalling, nurse call, communications, security and energy saving solutions provider As one of Canada’s leading life safety…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBoca Raton, FL, United StatesHQ recorded Nov 6, 2026501-1,000617 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchKingston 5, JamaicaHQ recorded Nov 6, 20261,001-5,000605 contacts →

Exact match

“KingAlarm Systems began operations in March and, in a relatively short time, has become the largest Electronic Security Company not just in Jamaica but the entire Caribbean…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchTulsa, CA, United StatesHQ recorded Nov 6, 2026501-1,000601 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSyracuse, NY, United StatesHQ recorded Nov 6, 2026501-1,000515 contacts →

Exact match

“Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBrazilHQ recorded Nov 6, 2026n/a465 contacts →

Exact match

“A Inviolável atua no mercado há mais de 25 anos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSouthfield, OH, United StatesHQ recorded Nov 6, 2026501-1,000408 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchOgden, UT, United StatesHQ recorded Nov 6, 2026201-500401 contacts →

Exact match

“As the premier provider of critical event monitoring across North America, Becklar Monitoring is prepared to monitor any event, anytime, with speed, accuracy and exceptional…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWilliamstown, FL, United StatesHQ recorded Nov 6, 2026501-1,000333 contacts →

Exact match

“Headquartered in Williamstown, NJ, COPS Monitoring is a leading provider of professional monitoring services in North America with comprehensive redundancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchNashville, TN, United StatesHQ recorded Nov 6, 2026201-500328 contacts →

Exact match

“Headquartered in Nashville, TN, with branches throughout the Southeastern United States, ADS Security, a Vector Security company, is the 20th largest electronic security company…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchDublin 1, IrelandHQ recorded Nov 6, 2026201-500311 contacts →

Exact match

“PhoneWatch are Ireland's No.1 monitored alarm provider, with over customers nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSyosset, NY, United StatesHQ recorded Nov 6, 2026201-500306 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAurora, IL, United StatesHQ recorded Nov 6, 2026201-500245 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchUnion, TX, United StatesHQ recorded Nov 6, 2026501-1,000231 contacts →

Exact match

“Affiliated Monitoring combines 50 years of experience in alarm, fire IoT, telematics, and PERS monitoring with the latest technology to service security professionals nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchGurgaon, IndiaHQ recorded Nov 6, 2026201-500229 contacts →

Exact match

“VProtect is India's First Alarm, Monitoring, and Response Company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchReggio Emilia, ItalyHQ recorded Nov 6, 20261,001-5,000215 contacts →

Exact match

“In oltre 40 anni di esperienza nel settore della vigilanza privata abbiamo messo a punto una gamma completa di servizi di sicurezza e vigilanza che rispondono efficacemente alle…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026201-500206 contacts →

Exact match

“Since 1969, thousands of businesses across the country have entrusted their protection to DGA Security.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBrussels, BelgiumHQ recorded Nov 6, 2026501-1,000201 contacts →

Exact match

“Overview Verisure is the leading provider of peace of mind and protection to residential and small business customers across Europe and Latin America.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSarajevo, Bosnia and HerzegovinaHQ recorded Nov 6, 2026n/a194 contacts →

Exact match

“Firma Unilab d.o.o.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAptos, CA, United StatesHQ recorded Nov 6, 2026201-500184 contacts →

Exact match

“First Alarm has been protecting businesses and homeowners for more than 55 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchPlainview, NY, United StatesHQ recorded Nov 6, 202651-200177 contacts →

Exact match

“General Security is a family owned and operated company with offices from Buffalo, NY to South East Florida.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchArlington, MA, United StatesHQ recorded Nov 6, 2026201-500171 contacts →

Exact match

“We are in the business of protecting people's lives and property, so we understand our customers want and need access to American Alarm's talent and technology around the clock.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 4,017 alarm response services worldwide

See the full list, filter by size, metro and specialty, and access 9,792 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Alarm response services worldwide at a glance

As of Nov 6, 2026
15.4%Verified-email coverage
15.8Average contacts per company
11-50Median size (employees)
1.0%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,859
11-50
1,416
51-200
448
201-500
109
501-1,000
38
1,001-5,000
27
5,001-10,000
3
10001+
12

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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.
Coverage
Every country. Country and city lists for alarm response services are linked below.
What qualifies
Company records worldwide whose business descriptions match “alarm response services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 9,792 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Alarm response services by location

17 lists · largest first

Every Alarm response services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “alarm response services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many alarm response services are there worldwide?

RevenueBase identified 4,017 company matches for alarm response services worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Verisure tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most alarm response services?

The United States leads with 1,335 companies, followed by the United Kingdom (456) and Brazil (262). Every alarm response services list by country and city is linked on this page.

Which city has the most alarm response services?

Sao Paulo leads with 41 company records, followed by London (40) and New York (21).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 9,792 professional contacts with verified work emails tracked across these 4,017 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 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.