Company lists · Data refreshed September 2026
Top 25 Security monitoring services worldwide
RevenueBase identified 16,362 security monitoring services worldwide as of September 2026 and tracks 310,976 professional contacts across them, including 79,689 with verified work emails and 44,153 with mobile numbers. The United States is the largest market and London the largest hub.
This list covers security monitoring services worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026. Country and city lists for security monitoring services follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 security monitoring services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 18,431 contacts → | ||||
Indirect evidence “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 14,199 contacts → | ||||
Partial evidence “Verisure is the global leader in professionally monitored security services by customers served, with a market-leading presence across Europe and Latin America.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 4,942 contacts → | ||||
Indirect evidence “We’re a global cybersecurity leader, helping to make the world safe for exchanging digital information.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 4,925 contacts → | ||||
Indirect evidence “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 3,843 contacts → | ||||
Partial evidence “Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 3,673 contacts → | ||||
Indirect evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 3,592 contacts → | ||||
Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 3,387 contacts → | ||||
Partial evidence “Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 3,145 contacts → | ||||
Indirect evidence “Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3,052 contacts → | ||||
Indirect evidence “SentinelOne is the world's leading AI-powered cybersecurity platform.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2,222 contacts → | ||||
Indirect evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 2,172 contacts → | ||||
Indirect evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2,126 contacts → | ||||
Partial evidence “Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2,045 contacts → | ||||
Partial evidence “Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 1,340 contacts → | ||||
Partial evidence “At Imvula Quality Protection, we don’t just provide security, we create peace of mind.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1,331 contacts → | ||||
Indirect evidence “A Embrasil é especializada em oferecer serviços garantindos de segurança patrimonial para diversos seguimentos do mercado: bancos, indústrias, escolas, redes de varejo, comércios…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1,287 contacts → | ||||
Partial evidence “Vector Security® has protected people and property by providing intelligent security solutions tailored to the needs of the customer for more than 50 years.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1,252 contacts → | ||||
Indirect evidence “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,232 contacts → | ||||
Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,190 contacts → | ||||
Partial evidence “DSI Security Services offers armed and unarmed uniformed security guard services.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,178 contacts → | ||||
Indirect evidence “With a wealth of 400+ years of cumulative experience of our senior management and a diverse team of trained professionals in India, Singapore and UK, we have consolidated our…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,138 contacts → | ||||
Partial evidence “At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,068 contacts → | ||||
Partial evidence “Solid Security to doświadczenie, wiedza oraz profesjonalizm działań na rynku ochrony osób i mienia.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,050 contacts → | ||||
Partial evidence “Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1,026 contacts → | ||||
Indirect evidence “Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: security monitoring services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names security monitoring services.
- Partial evidence
- Its own public description names part of security monitoring services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security monitoring services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 16,362 security monitoring services worldwide
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Security monitoring services worldwide at a glance
As of Sep 6, 2026Companies by employee count
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security monitoring services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- 49 countries, largest first: the United States, the United Kingdom, Brazil, India, France, Canada, Australia, Germany, Italy, Spain and 39 more. Country and city lists for security monitoring services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “security monitoring services”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security monitoring services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among security monitoring services, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 79,689 across the full list. 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 between September 6, 2026 and September 14, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Security monitoring services by location
103 lists · largest firstEvery Security monitoring services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security monitoring services based in the United States4,578
- Security monitoring services based in the United Kingdom1,385
- Security monitoring services based in Brazil1,375
- Security monitoring services based in India1,198
- Security monitoring services based in France870
- Security monitoring services based in Canada780
- Security monitoring services based in Australia543
- Security monitoring services based in Germany493
- Security monitoring services based in Italy448
- Security monitoring services based in Spain369
- Security monitoring services based in the Netherlands340
- Security monitoring services based in South Africa330
- Security monitoring services based in Mexico286
- Security monitoring services based in Belgium229
- Security monitoring services based in Argentina226
- Security monitoring services based in the United Arab Emirates225
- Security monitoring services based in Türkiye196
- Security monitoring services based in Colombia189
- Security monitoring services based in Chile164
- Security monitoring services based in Poland147
- Security monitoring services based in Switzerland143
- Security monitoring services based in Pakistan136
- Security monitoring services based in Israel122
- Security monitoring services based in Sweden118
- Security monitoring services based in Ireland98
- Security monitoring services based in Saudi Arabia96
- Security monitoring services based in Romania91
- Security monitoring services based in New Zealand90
- Security monitoring services based in Peru85
- Security monitoring services based in Malaysia80
- Security monitoring services based in Singapore77
- Security monitoring services based in Indonesia75
- Security monitoring services based in Portugal71
- Security monitoring services based in Denmark69
- Security monitoring services based in Greece64
- Security monitoring services based in Ecuador59
- Security monitoring services based in Egypt59
- Security monitoring services based in Japan52
- Security monitoring services based in Austria51
- Security monitoring services based in the Philippines49
- Security monitoring services based in Hungary48
- Security monitoring services based in Ukraine48
- Security monitoring services based in Finland42
- Security monitoring services based in Uruguay32
- Security monitoring services based in Slovakia31
- Security monitoring services based in Norway28
- Security monitoring services based in Cyprus27
- Security monitoring services based in Qatar25
- Security monitoring services based in Thailand25
Cities
- Security monitoring services based in London, United Kingdom308
- Security monitoring services based in Sao Paulo, Brazil276
- Security monitoring services based in New York, United States116
- Security monitoring services based in Toronto, Canada110
- Security monitoring services based in Paris, France107
- Security monitoring services based in Hyderabad, India91
- Security monitoring services based in Miami, United States82
- Security monitoring services based in Pune, India82
- Security monitoring services based in Melbourne, Australia80
- Security monitoring services based in Houston, United States79
- Security monitoring services based in Mumbai, India79
- Security monitoring services based in Rio De Janeiro, Brazil76
- Security monitoring services based in Madrid, Spain74
- Security monitoring services based in Sydney, Australia70
- Security monitoring services based in Bangalore, India68
- Security monitoring services based in New Delhi, India66
- Security monitoring services based in Dallas, United States63
- Security monitoring services based in Chennai, India60
- Security monitoring services based in Los Angeles, United States58
- Security monitoring services based in Austin, United States54
- Security monitoring services based in Calgary, Canada54
- Security monitoring services based in Johannesburg, South Africa54
- Security monitoring services based in Ahmedabad, India53
- Security monitoring services based in Noida, India51
- Security monitoring services based in Bengaluru, India49
- Security monitoring services based in Curitiba, Brazil47
- Security monitoring services based in Montreal, Canada47
- Security monitoring services based in Chicago, United States46
- Security monitoring services based in Manchester, United Kingdom45
- Security monitoring services based in Belo Horizonte, Brazil44
- Security monitoring services based in Phoenix, United States44
- Security monitoring services based in Berlin, Germany42
- Security monitoring services based in Barcelona, Spain41
- Security monitoring services based in Stockholm, Sweden41
- Security monitoring services based in Atlanta, United States40
- Security monitoring services based in Mississauga, Canada40
- Security monitoring services based in San Francisco, United States40
- Security monitoring services based in Las Vegas, United States39
- Security monitoring services based in Auckland, New Zealand38
- Security monitoring services based in Tel Aviv, Israel38
- Security monitoring services based in Cape Town, South Africa36
- Security monitoring services based in Denver, United States35
- Security monitoring services based in Charlotte, United States34
- Security monitoring services based in San Diego, United States33
- Security monitoring services based in Gurgaon, India32
- Security monitoring services based in Tampa, United States31
- Security monitoring services based in Wilmington, United States30
- Security monitoring services based in Washington, United States28
- Security monitoring services based in Baltimore, United States27
- Security monitoring services based in Columbia, United States27
- Security monitoring services based in San Jose, United States27
- Security monitoring services based in Ottawa, Canada26
- Security monitoring services based in Warszawa, Poland26
- Security monitoring services based in Scottsdale, United States25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names security monitoring services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many security monitoring services are there worldwide?
RevenueBase identified 16,362 security monitoring services worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Palo Alto Networks, headquartered in Santa Clara, tops this list with the largest team on record.
Which country has the most security monitoring services?
The United States leads with 4,578 companies, followed by the United Kingdom (1,385) and Brazil (1,375). Every security monitoring services list by country and city is linked on this page.
Which city has the most security monitoring services?
London leads with 317 headquartered companies, followed by Sao Paulo (276) and Dubai (138).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 79,689 verified decision-maker contacts tracked across these 16,362 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 6, 2026 and September 14, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, 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.