Company lists · Data refreshed November 2026
Top 25 Alarm response services based in the United States
RevenueBase identified 1,335 company matches for alarm response services associated with the United States as of November 2026 and tracks 19,330 professional contacts across them, including 5,012 with verified work emails. New York is the largest hub.
This list covers company matches for alarm response services associated with the United States, 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.
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 alarm response services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 721 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 | |||||
| 2 | 617 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 | |||||
| 3 | 601 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 | |||||
| 4 | 515 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 | |||||
| 5 | 408 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 | |||||
| 6 | 401 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 | |||||
| 7 | 333 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 | |||||
| 8 | 328 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 | |||||
| 9 | 306 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 245 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 | |||||
| 11 | 231 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 | |||||
| 12 | 206 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 | |||||
| 13 | 184 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 | |||||
| 14 | 177 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 | |||||
| 15 | 171 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 | |||||
| 16 | 168 contacts → | ||||
Exact match “Established in 1974, AES Corporation empowers companies to grow profitable alarm monitoring businesses, and government agencies to enhance security anywhere in the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 160 contacts → | ||||
Exact match “Security Equipment’s primary concern is for our client’s life safety and peace of mind.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 160 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 153 contacts → | ||||
Exact match “A home and business security provider, EPS Security was founded in Grand Rapids, Michigan.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 152 contacts → | ||||
Exact match “Installation and monitoring of commercial and residential security systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 142 contacts → | ||||
Exact match “With our 24/7/365 contact center and alarm monitoring central station, CRC has merged the benefits of personalized service with the efficiencies provided by technologically…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 142 contacts → | ||||
Exact match “Vet-Sec Protection Agency was founded by Chad Benham, William Brandon, and Ennio Canziani in May of 1994.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 126 contacts → | ||||
Exact match “For more than 25 years, Monitronics® International has been providing professionally monitored security and life safety systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 125 contacts → | ||||
Exact match “Doyle Security Systems has been a trusted provider of integrated security solutions for more than 100 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 114 contacts → | ||||
Exact match “SINCE 1989 First Response Security has been providing a Higher Standard of physical and electronic security solutions to the great northwest since 1989.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “alarm response services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,335 alarm response services based in the United States
See the full list, filter by size, metro and specialty, and access 5,012 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Alarm response services based in the United States at a glance
As of Nov 6, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,335 companies.
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.
- What qualifies
- Company records associated with the United States 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 5,012 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.
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 based in the United States?
RevenueBase identified 1,335 company matches for alarm response services associated with the United States 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?
Guardian Protection tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most alarm response services?
New York leads with 21 company records, followed by Houston (17) and Phoenix (11).
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 5,012 professional contacts with verified work emails tracked across these 1,335 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.
Ready to reach these companies? Verified emails and direct dials for all 1,335 alarm response services based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Alarm response services by geography
- Alarm response services based in London, United Kingdom
- Alarm response services based in Argentina
- Alarm response services based in Australia
- Alarm response services based in Belgium
- Alarm response services based in Brazil
- Alarm response services based in Canada
- Alarm response services based in Denmark
- Alarm response services based in France
- Alarm response services based in Germany
- Alarm response services based in Ireland
- Alarm response services based in Italy
- Alarm response services based in the Netherlands
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Alarm response services based in London, United Kingdom
- Alarm response services based in Argentina
- Alarm response services based in Australia
- Alarm response services based in Belgium
- Alarm response services based in Brazil
- Alarm response services based in Canada
Company intelligence · public preview
Top 25 alarm response services based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,335 matching company records for alarm response services based in the United States, with 19,330 tracked contacts and 5,012 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 alarm response services based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Guardian Protectionguardianprotection.comHQ: Warrendale, PA, United StatesReported employees: 501-1,000 | Warrendale, PA, United States | 501-1,000 | Exact match | 721 contacts → |
“Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  ADT Security Servicesadt.comHQ: Boca Raton, FL, United StatesReported employees: 501-1,000 | Boca Raton, FL, United States | 501-1,000 | Exact match | 617 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Alert 360alert360.comHQ: Tulsa, CA, United StatesReported employees: 501-1,000 | Tulsa, CA, United States | 501-1,000 | Exact match | 601 contacts → |
“Alert 360 security is a trusted and best-in-class provider of reliable security solutions for homes and businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Rapid Response Monitoringrrms.comHQ: Syracuse, NY, United StatesReported employees: 501-1,000 | Syracuse, NY, United States | 501-1,000 | Exact match | 515 contacts → |
“Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Guardian Alarmguardianalarm.comHQ: Southfield, OH, United StatesReported employees: 501-1,000 | Southfield, OH, United States | 501-1,000 | Exact match | 408 contacts → |
“Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Becklar Monitoringbecklar.comHQ: Ogden, UT, United StatesReported employees: 201-500 | Ogden, UT, United States | 201-500 | Exact match | 401 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Cops Monitoringcopsmonitoring.comHQ: Williamstown, FL, United StatesReported employees: 501-1,000 | Williamstown, FL, United States | 501-1,000 | Exact match | 333 contacts → |
“Headquartered in Williamstown, NJ, COPS Monitoring is a leading provider of professional monitoring services in North America with comprehensive redundancy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  ADS Securityadssecurity.comHQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 328 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  AFA Protective Systems, INCafap.comHQ: Syosset, NY, United StatesReported employees: 201-500 | Syosset, NY, United States | 201-500 | Exact match | 306 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 |  Alarm Detection Systemsadsalarm.comHQ: Aurora, IL, United StatesReported employees: 201-500 | Aurora, IL, United States | 201-500 | Exact match | 245 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Affiliated Monitoringaffiliated.comHQ: Union, TX, United StatesReported employees: 501-1,000 | Union, TX, United States | 501-1,000 | Exact match | 231 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  DGA Securitydga.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 206 contacts → |
“Since 1969, thousands of businesses across the country have entrusted their protection to DGA Security.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  First Alarmfirstalarm.comHQ: Aptos, CA, United StatesReported employees: 201-500 | Aptos, CA, United States | 201-500 | Exact match | 184 contacts → |
“First Alarm has been protecting businesses and homeowners for more than 55 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  General Securitygensecurity.comHQ: Plainview, NY, United StatesReported employees: 51-200 | Plainview, NY, United States | 51-200 | Exact match | 177 contacts → |
“General Security is a family owned and operated company with offices from Buffalo, NY to South East Florida.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  American Alarm And Communications, INCamericanalarm.comHQ: Arlington, MA, United StatesReported employees: 201-500 | Arlington, MA, United States | 201-500 | Exact match | 171 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  AES Corporationaes-corp.comHQ: Peabody, MA, United StatesReported employees: 51-200 | Peabody, MA, United States | 51-200 | Exact match | 168 contacts → |
“Established in 1974, AES Corporation empowers companies to grow profitable alarm monitoring businesses, and government agencies to enhance security anywhere in the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Security Equipment, INCseisecurity.comHQ: Omaha, NE, United StatesReported employees: 51-200 | Omaha, NE, United States | 51-200 | Exact match | 160 contacts → |
“Security Equipment’s primary concern is for our client’s life safety and peace of mind.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  OLD Accountipsc.bizHQ: Hammond, LA, United StatesReported employees: Not recorded | Hammond, LA, United States | Not recorded | Exact match | 160 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 |  EPS Securityepssecurity.comHQ: Grand Rapids, MI, United StatesReported employees: 201-500 | Grand Rapids, MI, United States | 201-500 | Exact match | 153 contacts → |
“A home and business security provider, EPS Security was founded in Grand Rapids, Michigan.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Safe Home Security, INCsafehomesecurityinc.comHQ: Middletown, CT, United StatesReported employees: 201-500 | Middletown, CT, United States | 201-500 | Exact match | 152 contacts → |
“Installation and monitoring of commercial and residential security systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Cooperative Response Center CRCcrc.coopHQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 142 contacts → |
“With our 24/7/365 contact center and alarm monitoring central station, CRC has merged the benefits of personalized service with the efficiencies provided by technologically…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Vet-Sec Protection Agencyvetsec.comHQ: Phoenix, AZ, United StatesReported employees: 501-1,000 | Phoenix, AZ, United States | 501-1,000 | Exact match | 142 contacts → |
“Vet-Sec Protection Agency was founded by Chad Benham, William Brandon, and Ennio Canziani in May of 1994.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Monitronicsmonitronics.comHQ: Lancaster, WV, United StatesReported employees: 201-500 | Lancaster, WV, United States | 201-500 | Exact match | 126 contacts → |
“For more than 25 years, Monitronics® International has been providing professionally monitored security and life safety systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Doyle Security Systems, INCgodoyle.comHQ: Rochester, NY, United StatesReported employees: 201-500 | Rochester, NY, United States | 201-500 | Exact match | 125 contacts → |
“Doyle Security Systems has been a trusted provider of integrated security solutions for more than 100 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  First Response Securityfr-inc.comHQ: Beaverton, OR, United StatesReported employees: 51-200 | Beaverton, OR, United States | 51-200 | Exact match | 114 contacts → |
“SINCE 1989 First Response Security has been providing a Higher Standard of physical and electronic security solutions to the great northwest since 1989.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,335 company matches
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Alarm response services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,328 records in the displayed employee bands.
7 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,335 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for alarm response services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many alarm response services did RevenueBase find based in the United States?
The saved snapshot records 1,335 matching company records, 19,330 tracked contacts and 5,012 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Alarm response services by geography
- Alarm response services based in London, United Kingdom
- Alarm response services based in Argentina
- Alarm response services based in Australia
- Alarm response services based in Belgium
- Alarm response services based in Brazil
- Alarm response services based in Canada
- Alarm response services based in Denmark
- Alarm response services based in France
- Alarm response services based in Germany
- Alarm response services based in Ireland
- Alarm response services based in Italy
- Alarm response services based in the Netherlands
Cite this list
RevenueBase Data Team. Top 25 alarm response services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/alarm-response-services/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Alarm response services based in London, United Kingdom
- Alarm response services based in Argentina
- Alarm response services based in Australia
- Alarm response services based in Belgium
- Alarm response services based in Brazil
- Alarm response services based in Canada
Company intelligence · public preview
Top 25 alarm response services based in the United States
RevenueBase records 1,335 matching company records for alarm response services based in the United States, with 19,330 tracked contacts and 5,012 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 alarm response services based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Guardian Protectionguardianprotection.com HQ: Warrendale, PA, United StatesReported employees: 501-1,000 | Warrendale, PA, United States | 501-1,000 | Exact match | 721 contacts → |
“Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ADT Security Servicesadt.com HQ: Boca Raton, FL, United StatesReported employees: 501-1,000 | Boca Raton, FL, United States | 501-1,000 | Exact match | 617 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Alert 360alert360.com HQ: Tulsa, CA, United StatesReported employees: 501-1,000 | Tulsa, CA, United States | 501-1,000 | Exact match | 601 contacts → |
“Alert 360 security is a trusted and best-in-class provider of reliable security solutions for homes and businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Rapid Response Monitoringrrms.com HQ: Syracuse, NY, United StatesReported employees: 501-1,000 | Syracuse, NY, United States | 501-1,000 | Exact match | 515 contacts → |
“Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Guardian Alarmguardianalarm.com HQ: Southfield, OH, United StatesReported employees: 501-1,000 | Southfield, OH, United States | 501-1,000 | Exact match | 408 contacts → |
“Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Becklar Monitoringbecklar.com HQ: Ogden, UT, United StatesReported employees: 201-500 | Ogden, UT, United States | 201-500 | Exact match | 401 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Cops Monitoringcopsmonitoring.com HQ: Williamstown, FL, United StatesReported employees: 501-1,000 | Williamstown, FL, United States | 501-1,000 | Exact match | 333 contacts → |
“Headquartered in Williamstown, NJ, COPS Monitoring is a leading provider of professional monitoring services in North America with comprehensive redundancy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | ADS Securityadssecurity.com HQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 328 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | AFA Protective Systems, INCafap.com HQ: Syosset, NY, United StatesReported employees: 201-500 | Syosset, NY, United States | 201-500 | Exact match | 306 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | Alarm Detection Systemsadsalarm.com HQ: Aurora, IL, United StatesReported employees: 201-500 | Aurora, IL, United States | 201-500 | Exact match | 245 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Affiliated Monitoringaffiliated.com HQ: Union, TX, United StatesReported employees: 501-1,000 | Union, TX, United States | 501-1,000 | Exact match | 231 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | DGA Securitydga.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 206 contacts → |
“Since 1969, thousands of businesses across the country have entrusted their protection to DGA Security.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | First Alarmfirstalarm.com HQ: Aptos, CA, United StatesReported employees: 201-500 | Aptos, CA, United States | 201-500 | Exact match | 184 contacts → |
“First Alarm has been protecting businesses and homeowners for more than 55 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | General Securitygensecurity.com HQ: Plainview, NY, United StatesReported employees: 51-200 | Plainview, NY, United States | 51-200 | Exact match | 177 contacts → |
“General Security is a family owned and operated company with offices from Buffalo, NY to South East Florida.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | American Alarm And Communications, INCamericanalarm.com HQ: Arlington, MA, United StatesReported employees: 201-500 | Arlington, MA, United States | 201-500 | Exact match | 171 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | AES Corporationaes-corp.com HQ: Peabody, MA, United StatesReported employees: 51-200 | Peabody, MA, United States | 51-200 | Exact match | 168 contacts → |
“Established in 1974, AES Corporation empowers companies to grow profitable alarm monitoring businesses, and government agencies to enhance security anywhere in the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Security Equipment, INCseisecurity.com HQ: Omaha, NE, United StatesReported employees: 51-200 | Omaha, NE, United States | 51-200 | Exact match | 160 contacts → |
“Security Equipment’s primary concern is for our client’s life safety and peace of mind.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | OLD Accountipsc.biz HQ: Hammond, LA, United StatesReported employees: Not recorded | Hammond, LA, United States | Not recorded | Exact match | 160 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | EPS Securityepssecurity.com HQ: Grand Rapids, MI, United StatesReported employees: 201-500 | Grand Rapids, MI, United States | 201-500 | Exact match | 153 contacts → |
“A home and business security provider, EPS Security was founded in Grand Rapids, Michigan.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Safe Home Security, INCsafehomesecurityinc.com HQ: Middletown, CT, United StatesReported employees: 201-500 | Middletown, CT, United States | 201-500 | Exact match | 152 contacts → |
“Installation and monitoring of commercial and residential security systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Cooperative Response Center CRCcrc.coop HQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 142 contacts → |
“With our 24/7/365 contact center and alarm monitoring central station, CRC has merged the benefits of personalized service with the efficiencies provided by technologically…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Vet-Sec Protection Agencyvetsec.com HQ: Phoenix, AZ, United StatesReported employees: 501-1,000 | Phoenix, AZ, United States | 501-1,000 | Exact match | 142 contacts → |
“Vet-Sec Protection Agency was founded by Chad Benham, William Brandon, and Ennio Canziani in May of 1994.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Monitronicsmonitronics.com HQ: Lancaster, WV, United StatesReported employees: 201-500 | Lancaster, WV, United States | 201-500 | Exact match | 126 contacts → |
“For more than 25 years, Monitronics® International has been providing professionally monitored security and life safety systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Doyle Security Systems, INCgodoyle.com HQ: Rochester, NY, United StatesReported employees: 201-500 | Rochester, NY, United States | 201-500 | Exact match | 125 contacts → |
“Doyle Security Systems has been a trusted provider of integrated security solutions for more than 100 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | First Response Securityfr-inc.com HQ: Beaverton, OR, United StatesReported employees: 51-200 | Beaverton, OR, United States | 51-200 | Exact match | 114 contacts → |
“SINCE 1989 First Response Security has been providing a Higher Standard of physical and electronic security solutions to the great northwest since 1989.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Alarm response services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,328 records in the displayed employee bands.
7 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,335 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for alarm response services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many alarm response services did RevenueBase find based in the United States?
The saved snapshot records 1,335 matching company records, 19,330 tracked contacts and 5,012 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 alarm response services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/alarm-response-services/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Alarm response services based in London, United Kingdom
- Alarm response services based in Argentina
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