Company lists · Data refreshed November 2026
Top 25 Monitoring services companies based in the United States
RevenueBase identified 354 company matches for monitoring services companies associated with the United States as of November 2026 and tracks 6,526 professional contacts across them, including 1,936 with verified work emails. Houston is the largest hub.
This list covers company matches for monitoring services companies 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 monitoring services companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 709 contacts → | ||||
Exact match “Pro-Vigil is the smartest, fastest, most reliable, surveillance and monitoring solution, to enable you to focus on your core business, whether that’s in construction, an auto…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 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 | |||||
| 3 | 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 | |||||
| 4 | 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 | |||||
| 5 | 240 contacts → | ||||
Exact match “Since 1923, the Dickson Company has helped numerous organizations monitor their most sensitive environments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 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 | |||||
| 7 | 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 | |||||
| 8 | 100 contacts → | ||||
Exact match “Protecting What Matters Most Since 1952 with the Best Fire and Security Solutions Mountain Alarm was founded in 1952 when fire detection was in its infancy and monitoring…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 96 contacts → | ||||
Exact match “CMS is the most trusted wholesale monitoring service provider in the country and has more than 30 years experience in the alarm monitoring industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 92 contacts → | ||||
Exact match “Software Monitoring, Logging, and Real-Time Alerting Solutions for Broadcasters, Cable Companies and Streamers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 85 contacts → | ||||
Exact match “EMC Security offers state-of-the-art residential and commercial alarm monitoring in Metro Atlanta and surrounding areas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 85 contacts → | ||||
Exact match “Security Central serves customers nationwide with Boutique Monitoring Services that are professional, responsive and innovative.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 83 contacts → | ||||
Exact match “SSD Alarm was founded in 1968 with the mission of providing advanced system solutions and superior customer service.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 82 contacts → | ||||
Exact match “NMC has risen to become the premier 3rd party monitoring center in the nation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 81 contacts → | ||||
Exact match “With company roots of more than 50 years, F.E.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 71 contacts → | ||||
Exact match “Sonicu delivers modern, smart, and reliable monitoring solutions that protect people and products while keeping operations compliant.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 69 contacts → | ||||
Exact match “SMG Security Holdings, LLC is a professional, full service alarm company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 63 contacts → | ||||
Exact match “At UCC, we understand that customer satisfaction is of utmost importance!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 61 contacts → | ||||
Exact match “Strong Technical Services (STS) is a 24x7x365 remote monitoring company with two geographically dispersed state-of-the-art network operation centers (NOCs) and a nationwide field…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 59 contacts → | ||||
Exact match “At Wayne Alarm we strive to provide you with the best security and life safety systems available.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 55 contacts → | ||||
Exact match “Our Services: 24Hr UL/FM Listed Central Station Commercial and Industrial Security Systems Residential Alarm Systems CCTV Cameras and Systems Digital Video Recorders Fire Alarm…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 53 contacts → | ||||
Exact match “Washington Alarm is your local fire safety and security industry specialists, protecting both lives and property with fire alarm and security systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 51 contacts → | ||||
Exact match “Barcom Security is committed to offering the best in home, commercial and corporate security systems for customers around the St.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 48 contacts → | ||||
Exact match “SAFEGUARD Security & Surveillance secures commercial and residential applications with state of the art equipment installed and serviced by some of the most highly trained…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 47 contacts → | ||||
Exact match Recorded description not available. 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 “monitoring services companies”. 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 354 monitoring services companies based in the United States
See the full list, filter by size, metro and specialty, and access 1,936 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Monitoring services companies 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 354 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 “monitoring services companies” 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 1,936 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 “monitoring services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many monitoring services companies are there based in the United States?
RevenueBase identified 354 company matches for monitoring services companies 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?
Pro-Vigil Surveillance Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most monitoring services companies?
Houston leads with 10 company records, followed by New York (7) and Austin (5).
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 1,936 professional contacts with verified work emails tracked across these 354 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 354 monitoring services companies based in the United States. Start with a free account, no credit card.
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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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Monitoring services companies based in Australia
- Monitoring services companies based in Brazil
- Monitoring services companies based in Canada
- Monitoring services companies based in France
- Monitoring services companies based in the United Kingdom
- AI companies based in the United States
Company intelligence · public preview
Top 25 monitoring services companies 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 354 matching company records for monitoring services companies based in the United States, with 6,526 tracked contacts and 1,936 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 monitoring services companies 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 |  Pro-Vigil Surveillance Servicespro-vigil.comHQ: San Antonio, TX, United StatesReported employees: 201-500 | San Antonio, TX, United States | 201-500 | Exact match | 709 contacts → |
“Pro-Vigil is the smartest, fastest, most reliable, surveillance and monitoring solution, to enable you to focus on your core business, whether that’s in construction, an auto…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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. | |||||
| 3 |  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. | |||||
| 4 |  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. | |||||
| 5 |  Dicksondicksondata.comHQ: Addison, IL, United StatesReported employees: 51-200 | Addison, IL, United States | 51-200 | Exact match | 240 contacts → |
“Since 1923, the Dickson Company has helped numerous organizations monitor their most sensitive environments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  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. | |||||
| 7 |  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. | |||||
| 8 |  Mountain Alarmmountainalarm.comHQ: Ogden, UT, United StatesReported employees: 201-500 | Ogden, UT, United States | 201-500 | Exact match | 100 contacts → |
“Protecting What Matters Most Since 1952 with the Best Fire and Security Solutions Mountain Alarm was founded in 1952 when fire detection was in its infancy and monitoring…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  CMScmsn.comHQ: Longwood, FL, United StatesReported employees: 201-500 | Longwood, FL, United States | 201-500 | Exact match | 96 contacts → |
“CMS is the most trusted wholesale monitoring service provider in the country and has more than 30 years experience in the alarm monitoring industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  VELAvela.comHQ: Clearwater, FL, United StatesReported employees: 11-50 | Clearwater, FL, United States | 11-50 | Exact match | 92 contacts → |
“Software Monitoring, Logging, and Real-Time Alerting Solutions for Broadcasters, Cable Companies and Streamers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  EMC Securityemcsecurity.comHQ: Suwanee, GA, United StatesReported employees: 51-200 | Suwanee, GA, United States | 51-200 | Exact match | 85 contacts → |
“EMC Security offers state-of-the-art residential and commercial alarm monitoring in Metro Atlanta and surrounding areas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Security Centralsecurity-central.comHQ: Statesville, NC, United StatesReported employees: 201-500 | Statesville, NC, United States | 201-500 | Exact match | 85 contacts → |
“Security Central serves customers nationwide with Boutique Monitoring Services that are professional, responsive and innovative.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  SSD Alarmssdalarm.comHQ: Anaheim, TX, United StatesReported employees: 201-500 | Anaheim, TX, United States | 201-500 | Exact match | 83 contacts → |
“SSD Alarm was founded in 1968 with the mission of providing advanced system solutions and superior customer service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  National Monitoring Centernmccentral.comHQ: Irving, TX, United StatesReported employees: 51-200 | Irving, TX, United States | 51-200 | Exact match | 82 contacts → |
“NMC has risen to become the premier 3rd party monitoring center in the nation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  FE Moran Security Solutionsfemoransecurity.comHQ: Champaign, IL, United StatesReported employees: 51-200 | Champaign, IL, United States | 51-200 | Exact match | 81 contacts → |
“With company roots of more than 50 years, F.E.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Sonicusonicu.comHQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 71 contacts → |
“Sonicu delivers modern, smart, and reliable monitoring solutions that protect people and products while keeping operations compliant.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  SMG Security Holdings, LLCsmgsecurity.comHQ: Elk Grove Village, IL, United StatesReported employees: 11-50 | Elk Grove Village, IL, United States | 11-50 | Exact match | 69 contacts → |
“SMG Security Holdings, LLC is a professional, full service alarm company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  United Central Controlteamucc.comHQ: San Antonio, TX, United StatesReported employees: 51-200 | San Antonio, TX, United States | 51-200 | Exact match | 63 contacts → |
“At UCC, we understand that customer satisfaction is of utmost importance!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Strong Technical Servicesstrong-tech.comHQ: Omaha, NE, United StatesReported employees: 51-200 | Omaha, NE, United States | 51-200 | Exact match | 61 contacts → |
“Strong Technical Services (STS) is a 24x7x365 remote monitoring company with two geographically dispersed state-of-the-art network operation centers (NOCs) and a nationwide field…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Wayne Alarm Systemswaynealarm.comHQ: Lynn, MA, United StatesReported employees: 51-200 | Lynn, MA, United States | 51-200 | Exact match | 59 contacts → |
“At Wayne Alarm we strive to provide you with the best security and life safety systems available.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Electronix Systems C.S.A. INCelectronixsystems.comHQ: Huntington Station, NY, United StatesReported employees: 51-200 | Huntington Station, NY, United States | 51-200 | Exact match | 55 contacts → |
“Our Services: 24Hr UL/FM Listed Central Station Commercial and Industrial Security Systems Residential Alarm Systems CCTV Cameras and Systems Digital Video Recorders Fire Alarm…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Washington Alarm, INCwashingtonalarm.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 53 contacts → |
“Washington Alarm is your local fire safety and security industry specialists, protecting both lives and property with fire alarm and security systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Barcom Securitybarcomsecurity.comHQ: Swansea, IL, United StatesReported employees: 51-200 | Swansea, IL, United States | 51-200 | Exact match | 51 contacts → |
“Barcom Security is committed to offering the best in home, commercial and corporate security systems for customers around the St.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Safeguard Security & Surveillance, INCsafeguardssinc.comHQ: Windsor Locks, CT, United StatesReported employees: 51-200 | Windsor Locks, CT, United States | 51-200 | Exact match | 48 contacts → |
“SAFEGUARD Security & Surveillance secures commercial and residential applications with state of the art equipment installed and serviced by some of the most highly trained…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Gillmore Security Systems, INCgillmoresecurity.comHQ: Cleveland, OH, United StatesReported employees: 51-200 | Cleveland, OH, United States | 51-200 | Exact match | 47 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 354 company matches
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Monitoring services companies: 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
351 records in the displayed employee bands.
3 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 354 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 monitoring services companies?
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 monitoring services companies did RevenueBase find based in the United States?
The saved snapshot records 354 matching company records, 6,526 tracked contacts and 1,936 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
Monitoring services companies by geography
Cite this list
RevenueBase Data Team. Top 25 monitoring services companies based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/monitoring-services-companies/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
- Monitoring services companies based in Australia
- Monitoring services companies based in Brazil
- Monitoring services companies based in Canada
- Monitoring services companies based in France
- Monitoring services companies based in the United Kingdom
- AI companies based in the United States
Company intelligence · public preview
Top 25 monitoring services companies based in the United States
RevenueBase records 354 matching company records for monitoring services companies based in the United States, with 6,526 tracked contacts and 1,936 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 monitoring services companies 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 | Pro-Vigil Surveillance Servicespro-vigil.com HQ: San Antonio, TX, United StatesReported employees: 201-500 | San Antonio, TX, United States | 201-500 | Exact match | 709 contacts → |
“Pro-Vigil is the smartest, fastest, most reliable, surveillance and monitoring solution, to enable you to focus on your core business, whether that’s in construction, an auto…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | Dicksondicksondata.com HQ: Addison, IL, United StatesReported employees: 51-200 | Addison, IL, United States | 51-200 | Exact match | 240 contacts → |
“Since 1923, the Dickson Company has helped numerous organizations monitor their most sensitive environments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | Mountain Alarmmountainalarm.com HQ: Ogden, UT, United StatesReported employees: 201-500 | Ogden, UT, United States | 201-500 | Exact match | 100 contacts → |
“Protecting What Matters Most Since 1952 with the Best Fire and Security Solutions Mountain Alarm was founded in 1952 when fire detection was in its infancy and monitoring…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | CMScmsn.com HQ: Longwood, FL, United StatesReported employees: 201-500 | Longwood, FL, United States | 201-500 | Exact match | 96 contacts → |
“CMS is the most trusted wholesale monitoring service provider in the country and has more than 30 years experience in the alarm monitoring industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | VELAvela.com HQ: Clearwater, FL, United StatesReported employees: 11-50 | Clearwater, FL, United States | 11-50 | Exact match | 92 contacts → |
“Software Monitoring, Logging, and Real-Time Alerting Solutions for Broadcasters, Cable Companies and Streamers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | EMC Securityemcsecurity.com HQ: Suwanee, GA, United StatesReported employees: 51-200 | Suwanee, GA, United States | 51-200 | Exact match | 85 contacts → |
“EMC Security offers state-of-the-art residential and commercial alarm monitoring in Metro Atlanta and surrounding areas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Security Centralsecurity-central.com HQ: Statesville, NC, United StatesReported employees: 201-500 | Statesville, NC, United States | 201-500 | Exact match | 85 contacts → |
“Security Central serves customers nationwide with Boutique Monitoring Services that are professional, responsive and innovative.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | SSD Alarmssdalarm.com HQ: Anaheim, TX, United StatesReported employees: 201-500 | Anaheim, TX, United States | 201-500 | Exact match | 83 contacts → |
“SSD Alarm was founded in 1968 with the mission of providing advanced system solutions and superior customer service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | National Monitoring Centernmccentral.com HQ: Irving, TX, United StatesReported employees: 51-200 | Irving, TX, United States | 51-200 | Exact match | 82 contacts → |
“NMC has risen to become the premier 3rd party monitoring center in the nation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | FE Moran Security Solutionsfemoransecurity.com HQ: Champaign, IL, United StatesReported employees: 51-200 | Champaign, IL, United States | 51-200 | Exact match | 81 contacts → |
“With company roots of more than 50 years, F.E.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Sonicusonicu.com HQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 71 contacts → |
“Sonicu delivers modern, smart, and reliable monitoring solutions that protect people and products while keeping operations compliant.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | SMG Security Holdings, LLCsmgsecurity.com HQ: Elk Grove Village, IL, United StatesReported employees: 11-50 | Elk Grove Village, IL, United States | 11-50 | Exact match | 69 contacts → |
“SMG Security Holdings, LLC is a professional, full service alarm company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | United Central Controlteamucc.com HQ: San Antonio, TX, United StatesReported employees: 51-200 | San Antonio, TX, United States | 51-200 | Exact match | 63 contacts → |
“At UCC, we understand that customer satisfaction is of utmost importance!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Strong Technical Servicesstrong-tech.com HQ: Omaha, NE, United StatesReported employees: 51-200 | Omaha, NE, United States | 51-200 | Exact match | 61 contacts → |
“Strong Technical Services (STS) is a 24x7x365 remote monitoring company with two geographically dispersed state-of-the-art network operation centers (NOCs) and a nationwide field…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Wayne Alarm Systemswaynealarm.com HQ: Lynn, MA, United StatesReported employees: 51-200 | Lynn, MA, United States | 51-200 | Exact match | 59 contacts → |
“At Wayne Alarm we strive to provide you with the best security and life safety systems available.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Electronix Systems C.S.A. INCelectronixsystems.com HQ: Huntington Station, NY, United StatesReported employees: 51-200 | Huntington Station, NY, United States | 51-200 | Exact match | 55 contacts → |
“Our Services: 24Hr UL/FM Listed Central Station Commercial and Industrial Security Systems Residential Alarm Systems CCTV Cameras and Systems Digital Video Recorders Fire Alarm…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Washington Alarm, INCwashingtonalarm.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 53 contacts → |
“Washington Alarm is your local fire safety and security industry specialists, protecting both lives and property with fire alarm and security systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Barcom Securitybarcomsecurity.com HQ: Swansea, IL, United StatesReported employees: 51-200 | Swansea, IL, United States | 51-200 | Exact match | 51 contacts → |
“Barcom Security is committed to offering the best in home, commercial and corporate security systems for customers around the St.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Safeguard Security & Surveillance, INCsafeguardssinc.com HQ: Windsor Locks, CT, United StatesReported employees: 51-200 | Windsor Locks, CT, United States | 51-200 | Exact match | 48 contacts → |
“SAFEGUARD Security & Surveillance secures commercial and residential applications with state of the art equipment installed and serviced by some of the most highly trained…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Gillmore Security Systems, INCgillmoresecurity.com HQ: Cleveland, OH, United StatesReported employees: 51-200 | Cleveland, OH, United States | 51-200 | Exact match | 47 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 354 company matches
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Monitoring services companies: 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
351 records in the displayed employee bands.
3 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 354 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 monitoring services companies?
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 monitoring services companies did RevenueBase find based in the United States?
The saved snapshot records 354 matching company records, 6,526 tracked contacts and 1,936 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
Monitoring services companies by geography
Cite this list
RevenueBase Data Team. Top 25 monitoring services companies based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/monitoring-services-companies/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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