Company lists · Data refreshed September 2026
Top 25 Monitoring companies based in the United States
RevenueBase identified 721 company matches for monitoring companies associated with the United States as of September 2026 and tracks 12,672 professional contacts across them, including 3,673 with verified work emails. New York is the largest hub.
This list covers company matches for monitoring 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 September 20, 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 companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 702 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 580 contacts → | ||||
Exact match “Established in 1978, BI Incorporated offers government agencies a complete continuum of electronic monitoring technologies and services for reliable community supervision of…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 490 contacts → | ||||
Exact match “Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 389 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 375 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 339 contacts → | ||||
Exact match “As the nation's leading medical device service and monitoring company, we are committed to improving the standard of independent living and promote healthy aging through our…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 312 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 297 contacts → | ||||
Exact match “Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 223 contacts → | ||||
Exact match “Since 1923, the Dickson Company has helped numerous organizations monitor their most sensitive environments.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 218 contacts → | ||||
Exact match “Affiliated Monitoring combines over 40 years experience in alarm, fire and PERS monitoring with the latest technology to service security professionals nationwide.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 210 contacts → | ||||
Exact match “Rees Scientific provides continuous automated monitoring to a limitless number of applications in a wide range of industries.” Recorded in the RevenueBase company graph · Sep 20, 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 159 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 156 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 148 contacts → | ||||
Exact match “As the nation’s leading local monitoring company, Media Monitors provides media planners, broadcasters and advertisers with fast, accurate information about ad spending across…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 148 contacts → | ||||
Exact match “Installation and monitoring of commercial and residential security systems.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 138 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 132 contacts → | ||||
Exact match “PublicRelay is the most trusted media monitoring and analytics solution for communications and marketing professionals at the world’s most recognizable consumer and business…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 119 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 117 contacts → | ||||
Exact match “Critical Mention is now an Onclusive product.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 112 contacts → | ||||
Exact match “Bold Group has been providing total business solutions for the security industry for over four decades.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 106 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 94 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 90 contacts → | ||||
Exact match “Software Monitoring, Logging, and Real-Time Alerting Solutions for Broadcasters, Cable Companies and Streamers.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 85 contacts → | ||||
Exact match “Virtual Guard, Inc.offers cost-effective surveillance, intrusion detection, and reporting solutions that translate into a proactive, event-driven process for enhanced safety and…” Recorded in the RevenueBase company graph · Sep 20, 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 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 721 monitoring companies based in the United States
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Monitoring companies based in the United States at a glance
As of Sep 20, 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 721 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 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 3,673 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 September 20, 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 companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many monitoring companies are there based in the United States?
RevenueBase identified 721 company matches for monitoring companies associated with the United States as of September 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 companies?
New York leads with 16 company records, followed by Austin (10) and Houston (10).
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 3,673 professional contacts with verified work emails tracked across these 721 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 September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 721 monitoring companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
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- Monitoring companies based in Canada
- Monitoring companies based in France
- Monitoring companies based in Germany
- Monitoring companies based in Italy
- Monitoring companies based in Mexico
- Monitoring companies based in the Netherlands
- Monitoring companies based in South Africa
- Monitoring companies based in Spain
- Monitoring companies based in the United Kingdom
Browse the directory
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
Company intelligence · public preview
Top 25 monitoring 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 721 matching company records for monitoring companies based in the United States, with 12,672 tracked contacts and 3,673 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: September 20, 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 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 | 702 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  BI Incorporatedbi.comHQ: Boulder, CO, United StatesReported employees: 1,001-5,000 | Boulder, CO, United States | 1,001-5,000 | Exact match | 580 contacts → |
“Established in 1978, BI Incorporated offers government agencies a complete continuum of electronic monitoring technologies and services for reliable community supervision of…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Rapid Response Monitoringrrms.comHQ: Syracuse, NY, United StatesReported employees: 501-1,000 | Syracuse, NY, United States | 501-1,000 | Exact match | 490 contacts → |
“Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Guardian Alarmguardianalarm.comHQ: Southfield, MI, United StatesReported employees: 501-1,000 | Southfield, MI, United States | 501-1,000 | Exact match | 389 contacts → |
“Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Becklar Monitoringbecklar.com HQ: Ogden, UT, United StatesReported employees: 201-500 | Ogden, UT, United States | 201-500 | Exact match | 375 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Life Protect 24 7lifeprotect247.com HQ: Norfolk, VA, United StatesReported employees: 501-1,000 | Norfolk, VA, United States | 501-1,000 | Exact match | 339 contacts → |
“As the nation's leading medical device service and monitoring company, we are committed to improving the standard of independent living and promote healthy aging through our…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Cops Monitoringcopsmonitoring.comHQ: Williamstown, NJ, United StatesReported employees: 501-1,000 | Williamstown, NJ, United States | 501-1,000 | Exact match | 312 contacts → |
“Headquartered in Williamstown, NJ, COPS Monitoring is a leading provider of professional monitoring services in North America with comprehensive redundancy.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Picarropicarro.comHQ: Santa Clara, CA, United StatesReported employees: 201-500 | Santa Clara, CA, United States | 201-500 | Exact match | 297 contacts → |
“Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Dicksondicksondata.comHQ: Addison, IL, United StatesReported employees: 51-200 | Addison, IL, United States | 51-200 | Exact match | 223 contacts → |
“Since 1923, the Dickson Company has helped numerous organizations monitor their most sensitive environments.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Affiliated Monitoringaffiliated.comHQ: Union, NJ, United StatesReported employees: 501-1,000 | Union, NJ, United States | 501-1,000 | Exact match | 218 contacts → |
“Affiliated Monitoring combines over 40 years experience in alarm, fire and PERS monitoring with the latest technology to service security professionals nationwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Rees Scientificreesscientific.comHQ: Trenton, NJ, United StatesReported employees: 51-200 | Trenton, NJ, United States | 51-200 | Exact match | 210 contacts → |
“Rees Scientific provides continuous automated monitoring to a limitless number of applications in a wide range of industries.” Recorded description excerpt · September 20, 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  American Alarm And Communications, INCamericanalarm.comHQ: Arlington, MA, United StatesReported employees: 201-500 | Arlington, MA, United States | 201-500 | Exact match | 159 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  AES Corporationaes-corp.comHQ: Peabody, MA, United StatesReported employees: 51-200 | Peabody, MA, United States | 51-200 | Exact match | 156 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Media Monitorsmediamonitors.comHQ: White Plains, NY, United StatesReported employees: 201-500 | White Plains, NY, United States | 201-500 | Exact match | 148 contacts → |
“As the nation’s leading local monitoring company, Media Monitors provides media planners, broadcasters and advertisers with fast, accurate information about ad spending across…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Safe Home Security, INCsafehomesecurityinc.comHQ: Middletown, CT, United StatesReported employees: 201-500 | Middletown, CT, United States | 201-500 | Exact match | 148 contacts → |
“Installation and monitoring of commercial and residential security systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Cooperative Response Center CRCcrc.coopHQ: Austin, MN, United StatesReported employees: 201-500 | Austin, MN, United States | 201-500 | Exact match | 138 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Publicrelaypublicrelay.comHQ: Tysons, VA, United StatesReported employees: 51-200 | Tysons, VA, United States | 51-200 | Exact match | 132 contacts → |
“PublicRelay is the most trusted media monitoring and analytics solution for communications and marketing professionals at the world’s most recognizable consumer and business…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Monitronicsmonitronics.comHQ: Lancaster, PA, United StatesReported employees: 201-500 | Lancaster, PA, United States | 201-500 | Exact match | 119 contacts → |
“For more than 25 years, Monitronics® International has been providing professionally monitored security and life safety systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Critical Mentioncriticalmention.comHQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 117 contacts → |
“Critical Mention is now an Onclusive product.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Bold Groupboldgroup.comHQ: Colorado Springs, CO, United StatesReported employees: 51-200 | Colorado Springs, CO, United States | 51-200 | Exact match | 112 contacts → |
“Bold Group has been providing total business solutions for the security industry for over four decades.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Mountain Alarmmountainalarm.comHQ: Ogden, UT, United StatesReported employees: 201-500 | Ogden, UT, United States | 201-500 | Exact match | 106 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | CMScmsn.com HQ: Longwood, FL, United StatesReported employees: 201-500 | Longwood, FL, United States | 201-500 | Exact match | 94 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  VELAvela.comHQ: Clearwater, FL, United StatesReported employees: 11-50 | Clearwater, FL, United States | 11-50 | Exact match | 90 contacts → |
“Software Monitoring, Logging, and Real-Time Alerting Solutions for Broadcasters, Cable Companies and Streamers.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Virtual Guard INCvirtualguard.comHQ: Henderson, NV, United StatesReported employees: 11-50 | Henderson, NV, United States | 11-50 | Exact match | 85 contacts → |
“Virtual Guard, Inc.offers cost-effective surveillance, intrusion detection, and reporting solutions that translate into a proactive, event-driven process for enhanced safety and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 721 company matches
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Monitoring companies: dataset insights
September 20, 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
718 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 721 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: September 20, 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 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 companies did RevenueBase find based in the United States?
The saved snapshot records 721 matching company records, 12,672 tracked contacts and 3,673 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: September 20, 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 companies by geography
- Monitoring companies based in Argentina
- Monitoring companies based in Australia
- Monitoring companies based in Brazil
- Monitoring companies based in Canada
- Monitoring companies based in France
- Monitoring companies based in Germany
- Monitoring companies based in Italy
- Monitoring companies based in Mexico
- Monitoring companies based in the Netherlands
- Monitoring companies based in South Africa
- Monitoring companies based in Spain
- Monitoring companies based in the United Kingdom
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 monitoring companies based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/monitoring-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
Company intelligence · public preview
Top 25 monitoring companies based in the United States
RevenueBase records 721 matching company records for monitoring companies based in the United States, with 12,672 tracked contacts and 3,673 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: September 20, 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 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 | 702 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | BI Incorporatedbi.com HQ: Boulder, CO, United StatesReported employees: 1,001-5,000 | Boulder, CO, United States | 1,001-5,000 | Exact match | 580 contacts → |
“Established in 1978, BI Incorporated offers government agencies a complete continuum of electronic monitoring technologies and services for reliable community supervision of…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Rapid Response Monitoringrrms.com HQ: Syracuse, NY, United StatesReported employees: 501-1,000 | Syracuse, NY, United States | 501-1,000 | Exact match | 490 contacts → |
“Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Guardian Alarmguardianalarm.com HQ: Southfield, MI, United StatesReported employees: 501-1,000 | Southfield, MI, United States | 501-1,000 | Exact match | 389 contacts → |
“Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Becklar Monitoringbecklar.com HQ: Ogden, UT, United StatesReported employees: 201-500 | Ogden, UT, United States | 201-500 | Exact match | 375 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Life Protect 24 7lifeprotect247.com HQ: Norfolk, VA, United StatesReported employees: 501-1,000 | Norfolk, VA, United States | 501-1,000 | Exact match | 339 contacts → |
“As the nation's leading medical device service and monitoring company, we are committed to improving the standard of independent living and promote healthy aging through our…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Cops Monitoringcopsmonitoring.com HQ: Williamstown, NJ, United StatesReported employees: 501-1,000 | Williamstown, NJ, United States | 501-1,000 | Exact match | 312 contacts → |
“Headquartered in Williamstown, NJ, COPS Monitoring is a leading provider of professional monitoring services in North America with comprehensive redundancy.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Picarropicarro.com HQ: Santa Clara, CA, United StatesReported employees: 201-500 | Santa Clara, CA, United States | 201-500 | Exact match | 297 contacts → |
“Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Dicksondicksondata.com HQ: Addison, IL, United StatesReported employees: 51-200 | Addison, IL, United States | 51-200 | Exact match | 223 contacts → |
“Since 1923, the Dickson Company has helped numerous organizations monitor their most sensitive environments.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Affiliated Monitoringaffiliated.com HQ: Union, NJ, United StatesReported employees: 501-1,000 | Union, NJ, United States | 501-1,000 | Exact match | 218 contacts → |
“Affiliated Monitoring combines over 40 years experience in alarm, fire and PERS monitoring with the latest technology to service security professionals nationwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Rees Scientificreesscientific.com HQ: Trenton, NJ, United StatesReported employees: 51-200 | Trenton, NJ, United States | 51-200 | Exact match | 210 contacts → |
“Rees Scientific provides continuous automated monitoring to a limitless number of applications in a wide range of industries.” Recorded description excerpt · September 20, 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | American Alarm And Communications, INCamericanalarm.com HQ: Arlington, MA, United StatesReported employees: 201-500 | Arlington, MA, United States | 201-500 | Exact match | 159 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | AES Corporationaes-corp.com HQ: Peabody, MA, United StatesReported employees: 51-200 | Peabody, MA, United States | 51-200 | Exact match | 156 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Media Monitorsmediamonitors.com HQ: White Plains, NY, United StatesReported employees: 201-500 | White Plains, NY, United States | 201-500 | Exact match | 148 contacts → |
“As the nation’s leading local monitoring company, Media Monitors provides media planners, broadcasters and advertisers with fast, accurate information about ad spending across…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Safe Home Security, INCsafehomesecurityinc.com HQ: Middletown, CT, United StatesReported employees: 201-500 | Middletown, CT, United States | 201-500 | Exact match | 148 contacts → |
“Installation and monitoring of commercial and residential security systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Cooperative Response Center CRCcrc.coop HQ: Austin, MN, United StatesReported employees: 201-500 | Austin, MN, United States | 201-500 | Exact match | 138 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Publicrelaypublicrelay.com HQ: Tysons, VA, United StatesReported employees: 51-200 | Tysons, VA, United States | 51-200 | Exact match | 132 contacts → |
“PublicRelay is the most trusted media monitoring and analytics solution for communications and marketing professionals at the world’s most recognizable consumer and business…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Monitronicsmonitronics.com HQ: Lancaster, PA, United StatesReported employees: 201-500 | Lancaster, PA, United States | 201-500 | Exact match | 119 contacts → |
“For more than 25 years, Monitronics® International has been providing professionally monitored security and life safety systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Critical Mentioncriticalmention.com HQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 117 contacts → |
“Critical Mention is now an Onclusive product.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Bold Groupboldgroup.com HQ: Colorado Springs, CO, United StatesReported employees: 51-200 | Colorado Springs, CO, United States | 51-200 | Exact match | 112 contacts → |
“Bold Group has been providing total business solutions for the security industry for over four decades.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Mountain Alarmmountainalarm.com HQ: Ogden, UT, United StatesReported employees: 201-500 | Ogden, UT, United States | 201-500 | Exact match | 106 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | CMScmsn.com HQ: Longwood, FL, United StatesReported employees: 201-500 | Longwood, FL, United States | 201-500 | Exact match | 94 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | VELAvela.com HQ: Clearwater, FL, United StatesReported employees: 11-50 | Clearwater, FL, United States | 11-50 | Exact match | 90 contacts → |
“Software Monitoring, Logging, and Real-Time Alerting Solutions for Broadcasters, Cable Companies and Streamers.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Virtual Guard INCvirtualguard.com HQ: Henderson, NV, United StatesReported employees: 11-50 | Henderson, NV, United States | 11-50 | Exact match | 85 contacts → |
“Virtual Guard, Inc.offers cost-effective surveillance, intrusion detection, and reporting solutions that translate into a proactive, event-driven process for enhanced safety and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 721 company matches
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Monitoring companies: dataset insights
September 20, 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
718 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 721 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: September 20, 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 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 companies did RevenueBase find based in the United States?
The saved snapshot records 721 matching company records, 12,672 tracked contacts and 3,673 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: September 20, 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.
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Browse the directory
Cite this list
RevenueBase Data Team. Top 25 monitoring companies based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/monitoring-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗