Company lists · Data refreshed September 2026
Top 25 Monitoring firms worldwide
RevenueBase identified 665 company matches for monitoring firms worldwide as of September 2026 and tracks 7,974 professional contacts across them, including 2,166 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers company matches for monitoring firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026. Country and city lists for monitoring firms follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest monitoring firms worldwide
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 21, 2026 · View company records in RevenueBase | |||||
| 2 | 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 21, 2026 · View company records in RevenueBase | |||||
| 3 | 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 21, 2026 · View company records in RevenueBase | |||||
| 4 | 152 contacts → | ||||
Exact match “At CTL, we provide monitoring, IT security, and infrastructure management solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 146 contacts → | ||||
Exact match “TradingHub provides investment banks, asset managers, hedge funds, commodity houses, and brokerage firms with uniquely intelligent trade surveillance software to protect them…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 134 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 120 contacts → | ||||
Exact match “L'Eco della Stampa - con 20 milioni di euro di fatturato e oltre 230 dipendenti - è tra i più importanti operatori europei nell'industria del Media Monitoring.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 120 contacts → | ||||
Exact match “A Sekron Digital é uma das principais empresas de segurança eletrônica e monitoramento corporativo do Brasil, com atuação nacional e mais de 30 anos de experiência na proteção de…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 118 contacts → | ||||
Exact match “In business since Info4 is known as one of the best companies for media monitoring and analytics in Brazil, ranking among the ten largest PR/Communication agencies in the country…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 110 contacts → | ||||
Exact match “For over 40 years, DFP Partners has been a committed ally to Broker-Dealers, Registered Investment Advisers, and other financial services firms looking for accounting and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 105 contacts → | ||||
Exact match “Seguridad electrónica, Monitoreo, custodias y seguridad física” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 103 contacts → | ||||
Exact match “Christianson PLLP is a Certified Public Accounting Firm who is dedicated to providing solutions to our clients needs.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 96 contacts → | ||||
Exact match “Dal 1981 siamo al fianco dei professionisti della comunicazione offrendo una serie di servizi ai massimi standard di qualità, tecnologia e competenza.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 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 21, 2026 · View company records in RevenueBase | |||||
| 15 | 86 contacts → | ||||
Exact match “Eventus provides state-of-the-art, at-scale trade surveillance software across all lines of defense.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 80 contacts → | ||||
Exact match “Security Central serves customers nationwide with Boutique Monitoring Services that are professional, responsive and innovative.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 75 contacts → | ||||
Exact match “NMC has risen to become the premier 3rd party monitoring center in the nation.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 61 contacts → | ||||
Exact match “Canada 800- 897-1039 ext.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 58 contacts → | ||||
Exact match “Founded in 2004, eflow provides financial firms with technology solutions to help them comply with their regulatory requirements in a more streamlined, efficient and robust way.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 56 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 · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 49 contacts → | ||||
Exact match “EMCA jest wiodącym dostawcą rozwiązań w zakresie monitoringu infrastruktury informatycznej i bezpieczeństwa sieci.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 47 contacts → | ||||
Exact match “We develop monitoring tools that make the Internet a safer place for hundreds of international brands.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 46 contacts → | ||||
Exact match “Started in 2004, Affiliated Monitors was the first company in the United States to focus on providing top-quality, independent integrity monitoring services across a wide range of…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 40 contacts → | ||||
Exact match “Somos uma consultoria de TI, contando com soluções de monitoramento de infraestrutura e equipamentos voltados para ISP.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 38 contacts → | ||||
Exact match “MISSION STATEMENT As we navigate an ever evolving landscape of modern technology, USA Central Station is committed to providing world class monitoring services for our dealers and…” Recorded in the RevenueBase company graph · Sep 21, 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 firms”. 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 665 monitoring firms worldwide
See the full list, filter by size, metro and specialty, and access 2,166 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Monitoring firms worldwide at a glance
As of Sep 21, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for monitoring firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “monitoring firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 2,166 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 21, 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.
Monitoring firms by location
2 lists · largest firstEvery Monitoring firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many monitoring firms are there worldwide?
RevenueBase identified 665 company matches for monitoring firms worldwide 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 country has the most monitoring firms?
The United States leads with 185 companies, followed by Brazil (72). Every monitoring firms list by country and city is linked on this page.
Which city has the most monitoring firms?
Sao Paulo leads with 19 company records, followed by New York (17) and London (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 2,166 professional contacts with verified work emails tracked across these 665 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 665 monitoring firms worldwide. 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
Company intelligence · public preview
Top 25 monitoring firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 665 matching company records for monitoring firms worldwide, with 7,974 tracked contacts and 2,166 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 21, 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 firms worldwide
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 21, 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 | 490 contacts → |
“Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  CTL Information Technologyctl.techHQ: Buenos Aires, ArgentinaReported employees: 51-200 | Buenos Aires, Argentina | 51-200 | Exact match | 152 contacts → |
“At CTL, we provide monitoring, IT security, and infrastructure management solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Tradinghubtradinghub.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 146 contacts → |
“TradingHub provides investment banks, asset managers, hedge funds, commodity houses, and brokerage firms with uniquely intelligent trade surveillance software to protect them…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Proevi Protecao Especial DE Vigilancia Ltdagrupofb.com.br HQ: BrazilReported employees: 201-500 | Brazil | 201-500 | Exact match | 134 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 7 |  L'eco Della Stampa S.P.Aecostampa.itHQ: Milano, ItalyReported employees: 201-500 | Milano, Italy | 201-500 | Exact match | 120 contacts → |
“L'Eco della Stampa - con 20 milioni di euro di fatturato e oltre 230 dipendenti - è tra i più importanti operatori europei nell'industria del Media Monitoring.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Sekron Digital Brasilsekrondigital.com.brHQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 120 contacts → |
“A Sekron Digital é uma das principais empresas de segurança eletrônica e monitoramento corporativo do Brasil, com atuação nacional e mais de 30 anos de experiência na proteção de…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Info4info4.com.brHQ: Rio De Janeiro, BrazilReported employees: 51-200 | Rio De Janeiro, Brazil | 51-200 | Exact match | 118 contacts → |
“In business since Info4 is known as one of the best companies for media monitoring and analytics in Brazil, ranking among the ten largest PR/Communication agencies in the country…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  DFP Partnersdfppartners.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 110 contacts → |
“For over 40 years, DFP Partners has been a committed ally to Broker-Dealers, Registered Investment Advisers, and other financial services firms looking for accounting and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Brink's Seguridad Corporativabrinks.comHQ: Caba, IndiaReported employees: 51-200 | Caba, India | 51-200 | Exact match | 105 contacts → |
“Seguridad electrónica, Monitoreo, custodias y seguridad física” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Christianson Cpas & Consultantschristiansoncpa.comHQ: Willmar, MN, United StatesReported employees: 51-200 | Willmar, MN, United States | 51-200 | Exact match | 103 contacts → |
“Christianson PLLP is a Certified Public Accounting Firm who is dedicated to providing solutions to our clients needs.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Data Stampadatastampa.itHQ: Roma, ItalyReported employees: 51-200 | Roma, Italy | 51-200 | Exact match | 96 contacts → |
“Dal 1981 siamo al fianco dei professionisti della comunicazione offrendo una serie di servizi ai massimi standard di qualità, tecnologia e competenza.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Eventuseventus.comHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 86 contacts → |
“Eventus provides state-of-the-art, at-scale trade surveillance software across all lines of defense.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Security Centralsecurity-central.com HQ: Statesville, NC, United StatesReported employees: 201-500 | Statesville, NC, United States | 201-500 | Exact match | 80 contacts → |
“Security Central serves customers nationwide with Boutique Monitoring Services that are professional, responsive and innovative.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | National Monitoring Centernmccentral.com HQ: Irving, TX, United StatesReported employees: 51-200 | Irving, TX, United States | 51-200 | Exact match | 75 contacts → |
“NMC has risen to become the premier 3rd party monitoring center in the nation.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  A.P.I. Alarm INCapidealers.comHQ: Toronto, ON, CanadaReported employees: 201-500 | Toronto, ON, Canada | 201-500 | Exact match | 61 contacts → |
“Canada 800- 897-1039 ext.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  EFLOWeflowglobal.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 58 contacts → |
“Founded in 2004, eflow provides financial firms with technology solutions to help them comply with their regulatory requirements in a more streamlined, efficient and robust way.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Strong Technical Servicesstrong-tech.comHQ: Omaha, NE, United StatesReported employees: 51-200 | Omaha, NE, United States | 51-200 | Exact match | 56 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Emca S.Aemca.plHQ: Warszawa, PolandReported employees: 51-200 | Warszawa, Poland | 51-200 | Exact match | 49 contacts → |
“EMCA jest wiodącym dostawcą rozwiązań w zakresie monitoringu infrastruktury informatycznej i bezpieczeństwa sieci.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Adpoliceadpolice.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 47 contacts → |
“We develop monitoring tools that make the Internet a safer place for hundreds of international brands.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Affiliated Monitors, INCaffiliatedmonitors.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 46 contacts → |
“Started in 2004, Affiliated Monitors was the first company in the United States to focus on providing top-quality, independent integrity monitoring services across a wide range of…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Flowbixflowbix.comHQ: Araraquara, BrazilReported employees: 11-50 | Araraquara, Brazil | 11-50 | Exact match | 40 contacts → |
“Somos uma consultoria de TI, contando com soluções de monitoramento de infraestrutura e equipamentos voltados para ISP.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | USA Central Stationusacentralstation.com HQ: Port Chester, United StatesReported employees: 51-200 | Port Chester, United States | 51-200 | Exact match | 38 contacts → |
“MISSION STATEMENT As we navigate an ever evolving landscape of modern technology, USA Central Station is committed to providing world class monitoring services for our dealers and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 665 company matches
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Monitoring firms: dataset insights
September 21, 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
660 records in the displayed employee bands.
5 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 665 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 21, 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 ↗
Monitoring firms by location
2 lists · largest firstEvery Monitoring firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for monitoring firms?
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 firms did RevenueBase find worldwide?
The saved snapshot records 665 matching company records, 7,974 tracked contacts and 2,166 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 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 monitoring firms worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/monitoring-firms.
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 firms worldwide
RevenueBase records 665 matching company records for monitoring firms worldwide, with 7,974 tracked contacts and 2,166 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 21, 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 firms worldwide
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 21, 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 | 490 contacts → |
“Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | CTL Information Technologyctl.tech HQ: Buenos Aires, ArgentinaReported employees: 51-200 | Buenos Aires, Argentina | 51-200 | Exact match | 152 contacts → |
“At CTL, we provide monitoring, IT security, and infrastructure management solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Tradinghubtradinghub.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 146 contacts → |
“TradingHub provides investment banks, asset managers, hedge funds, commodity houses, and brokerage firms with uniquely intelligent trade surveillance software to protect them…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Proevi Protecao Especial DE Vigilancia Ltdagrupofb.com.br HQ: BrazilReported employees: 201-500 | Brazil | 201-500 | Exact match | 134 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 7 | L'eco Della Stampa S.P.Aecostampa.it HQ: Milano, ItalyReported employees: 201-500 | Milano, Italy | 201-500 | Exact match | 120 contacts → |
“L'Eco della Stampa - con 20 milioni di euro di fatturato e oltre 230 dipendenti - è tra i più importanti operatori europei nell'industria del Media Monitoring.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Sekron Digital Brasilsekrondigital.com.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 120 contacts → |
“A Sekron Digital é uma das principais empresas de segurança eletrônica e monitoramento corporativo do Brasil, com atuação nacional e mais de 30 anos de experiência na proteção de…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Info4info4.com.br HQ: Rio De Janeiro, BrazilReported employees: 51-200 | Rio De Janeiro, Brazil | 51-200 | Exact match | 118 contacts → |
“In business since Info4 is known as one of the best companies for media monitoring and analytics in Brazil, ranking among the ten largest PR/Communication agencies in the country…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | DFP Partnersdfppartners.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 110 contacts → |
“For over 40 years, DFP Partners has been a committed ally to Broker-Dealers, Registered Investment Advisers, and other financial services firms looking for accounting and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Brink's Seguridad Corporativabrinks.com HQ: Caba, IndiaReported employees: 51-200 | Caba, India | 51-200 | Exact match | 105 contacts → |
“Seguridad electrónica, Monitoreo, custodias y seguridad física” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Christianson Cpas & Consultantschristiansoncpa.com HQ: Willmar, MN, United StatesReported employees: 51-200 | Willmar, MN, United States | 51-200 | Exact match | 103 contacts → |
“Christianson PLLP is a Certified Public Accounting Firm who is dedicated to providing solutions to our clients needs.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Data Stampadatastampa.it HQ: Roma, ItalyReported employees: 51-200 | Roma, Italy | 51-200 | Exact match | 96 contacts → |
“Dal 1981 siamo al fianco dei professionisti della comunicazione offrendo una serie di servizi ai massimi standard di qualità, tecnologia e competenza.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Eventuseventus.com HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 86 contacts → |
“Eventus provides state-of-the-art, at-scale trade surveillance software across all lines of defense.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Security Centralsecurity-central.com HQ: Statesville, NC, United StatesReported employees: 201-500 | Statesville, NC, United States | 201-500 | Exact match | 80 contacts → |
“Security Central serves customers nationwide with Boutique Monitoring Services that are professional, responsive and innovative.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | National Monitoring Centernmccentral.com HQ: Irving, TX, United StatesReported employees: 51-200 | Irving, TX, United States | 51-200 | Exact match | 75 contacts → |
“NMC has risen to become the premier 3rd party monitoring center in the nation.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | A.P.I. Alarm INCapidealers.com HQ: Toronto, ON, CanadaReported employees: 201-500 | Toronto, ON, Canada | 201-500 | Exact match | 61 contacts → |
“Canada 800- 897-1039 ext.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | EFLOWeflowglobal.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 58 contacts → |
“Founded in 2004, eflow provides financial firms with technology solutions to help them comply with their regulatory requirements in a more streamlined, efficient and robust way.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Strong Technical Servicesstrong-tech.com HQ: Omaha, NE, United StatesReported employees: 51-200 | Omaha, NE, United States | 51-200 | Exact match | 56 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Emca S.Aemca.pl HQ: Warszawa, PolandReported employees: 51-200 | Warszawa, Poland | 51-200 | Exact match | 49 contacts → |
“EMCA jest wiodącym dostawcą rozwiązań w zakresie monitoringu infrastruktury informatycznej i bezpieczeństwa sieci.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Adpoliceadpolice.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 47 contacts → |
“We develop monitoring tools that make the Internet a safer place for hundreds of international brands.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Affiliated Monitors, INCaffiliatedmonitors.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 46 contacts → |
“Started in 2004, Affiliated Monitors was the first company in the United States to focus on providing top-quality, independent integrity monitoring services across a wide range of…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Flowbixflowbix.com HQ: Araraquara, BrazilReported employees: 11-50 | Araraquara, Brazil | 11-50 | Exact match | 40 contacts → |
“Somos uma consultoria de TI, contando com soluções de monitoramento de infraestrutura e equipamentos voltados para ISP.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | USA Central Stationusacentralstation.com HQ: Port Chester, United StatesReported employees: 51-200 | Port Chester, United States | 51-200 | Exact match | 38 contacts → |
“MISSION STATEMENT As we navigate an ever evolving landscape of modern technology, USA Central Station is committed to providing world class monitoring services for our dealers and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 665 company matches
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Monitoring firms: dataset insights
September 21, 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
660 records in the displayed employee bands.
5 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 665 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 21, 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 ↗
Monitoring firms by location
2 lists · largest firstEvery Monitoring firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for monitoring firms?
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 firms did RevenueBase find worldwide?
The saved snapshot records 665 matching company records, 7,974 tracked contacts and 2,166 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 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 monitoring firms worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/monitoring-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗