Company lists · Data refreshed September 2026
Top 25 Security systems consultants worldwide
RevenueBase identified 19,640 security systems consultants worldwide as of September 2026 and tracks 177,870 professional contacts across them, including 40,821 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers security systems consultants 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 29, 2026. Country and city lists for security systems consultants 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 systems consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,169 contacts → | ||||
Indirect evidence “Making the world a safer place.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 5,707 contacts → | ||||
Partial evidence “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,678 contacts → | ||||
Partial evidence “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,406 contacts → | ||||
Partial evidence “As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 893 contacts → | ||||
Strong evidence “Security Company Electronics developers Systems integrator” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 849 contacts → | ||||
Strong evidence “Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 839 contacts → | ||||
Partial evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 834 contacts → | ||||
Partial evidence “Koorsen Fire & Security is a family-owned operation that has kept homes and businesses safe for more than 70 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 759 contacts → | ||||
Partial evidence “Chubb provides an unparalleled portfolio of security and life safety solutions to Canadian institutions, businesses and residences.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 659 contacts → | ||||
Indirect evidence “comienzos de 1989 se funda SABICO SEGURIDAD S.A, estando inscrita en el Registro de Empresas de Seguridad con el nº 1731.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 596 contacts → | ||||
Partial evidence “We are Canada's complete fire alarm and suppression, signalling, nurse call, communications, security and energy saving solutions provider As one of Canada’s leading life safety…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 553 contacts → | ||||
Partial evidence “Security Alliance is a highly experienced provider of security solutions for private and business environments.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 542 contacts → | ||||
Strong evidence “Securiton AG has been a leading manufacturer and installer of alarm and security systems since 1948 and is part of the Swiss Securitas Group.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 542 contacts → | ||||
Strong evidence “KingAlarm Systems began operations in March and, in a relatively short time, has become the largest Electronic Security Company not just in Jamaica but the entire Caribbean…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 533 contacts → | ||||
Partial evidence “BM Security was founded by the late senior assistant commissioner of Police Bob Morgan in 1984.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 527 contacts → | ||||
Partial evidence “Since 1987, Tech Systems, Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 457 contacts → | ||||
Indirect evidence “En tant qu’intégrateur ouvert de solutions de sûreté électroniques, nous vous accompagnons dans la protection de vos biens et personnes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 393 contacts → | ||||
Strong evidence “At Global Security Ltd, we are proud to be one of the UK’s trusted suppliers of CCTV, intruder alarms, access control, and fire safety systems.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 389 contacts → | ||||
Partial evidence “Mitie Fire & Security is part of Mitie, the UK’s leading facilities management and professional services company, delivering integrated fire and security solutions that protect…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 389 contacts → | ||||
Partial evidence “Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 387 contacts → | ||||
Strong evidence “PCSS is a Singapore-based systems integrator with more than 25 years of experience and accolades in providing secure, reliable and state-of-the-art security solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 386 contacts → | ||||
Indirect evidence “Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 336 contacts → | ||||
Strong evidence “AnG INDIA specializes in Security surveillance, Fire Detection and CCTV products with system design and custom engineering being a major strength.” Source: RevenueBase Database · checked Sep 29, 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 systems consultants. 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 systems consultants.
- Partial evidence
- Its own public description names part of security systems consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security systems consultants. 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 19,640 security systems consultants worldwide
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Security systems consultants worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 systems consultants, 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
- Every country. Country and city lists for security systems consultants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “security systems consultants”. 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 systems consultants), 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 systems consultants, 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, 40,821 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 on September 29, 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 systems consultants by location
72 lists · largest firstEvery Security systems consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security systems consultants based in the United States3,807
- Security systems consultants based in the United Kingdom2,036
- Security systems consultants based in Brazil1,126
- Security systems consultants based in India875
- Security systems consultants based in France841
- Security systems consultants based in Italy625
- Security systems consultants based in Canada520
- Security systems consultants based in Australia467
- Security systems consultants based in Germany430
- Security systems consultants based in Spain429
- Security systems consultants based in the Netherlands412
- Security systems consultants based in Türkiye327
- Security systems consultants based in Mexico319
- Security systems consultants based in South Africa246
- Security systems consultants based in Belgium241
- Security systems consultants based in the United Arab Emirates237
- Security systems consultants based in Argentina220
- Security systems consultants based in Sweden182
- Security systems consultants based in Chile174
- Security systems consultants based in Colombia173
- Security systems consultants based in Poland163
- Security systems consultants based in Peru143
- Security systems consultants based in Egypt137
- Security systems consultants based in Saudi Arabia129
- Security systems consultants based in Ireland123
- Security systems consultants based in Portugal115
- Security systems consultants based in Romania111
- Security systems consultants based in Switzerland110
- Security systems consultants based in New Zealand90
- Security systems consultants based in Greece72
- Security systems consultants based in Denmark68
- Security systems consultants based in Russia61
- Security systems consultants based in Malaysia59
- Security systems consultants based in Hungary55
- Security systems consultants based in Qatar43
- Security systems consultants based in Austria40
- Security systems consultants based in Israel38
- Security systems consultants based in Finland32
- Security systems consultants based in Croatia26
Cities
- Security systems consultants based in Sao Paulo, Brazil248
- Security systems consultants based in London, United Kingdom224
- Security systems consultants based in Dubai, United Arab Emirates104
- Security systems consultants based in Bangalore, India85
- Security systems consultants based in Rio De Janeiro, Brazil83
- Security systems consultants based in New York, United States68
- Security systems consultants based in Mumbai, India65
- Security systems consultants based in Houston, United States64
- Security systems consultants based in Pune, India58
- Security systems consultants based in Madrid, Spain52
- Security systems consultants based in Toronto, Canada49
- Security systems consultants based in Miami, United States47
- Security systems consultants based in Paris, France47
- Security systems consultants based in Riyadh, Saudi Arabia46
- Security systems consultants based in Belo Horizonte, Brazil44
- Security systems consultants based in Manchester, United Kingdom43
- Security systems consultants based in Stockholm, Sweden41
- Security systems consultants based in Abu Dhabi, United Arab Emirates38
- Security systems consultants based in Johannesburg, South Africa38
- Security systems consultants based in Dallas, United States35
- Security systems consultants based in Atlanta, United States34
- Security systems consultants based in Los Angeles, United States34
- Security systems consultants based in Cape Town, South Africa33
- Security systems consultants based in Melbourne, Australia33
- Security systems consultants based in Auckland, New Zealand32
- Security systems consultants based in Sydney, Australia30
- Security systems consultants based in Curitiba, Brazil29
- Security systems consultants based in Glasgow, United Kingdom29
- Security systems consultants based in Birmingham, United Kingdom27
- Security systems consultants based in Calgary, Canada26
- Security systems consultants based in Doha, Qatar26
- Security systems consultants based in Phoenix, United States26
- Security systems consultants based in Austin, 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 systems consultants, 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 systems consultants are there worldwide?
RevenueBase identified 19,640 security systems consultants 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?
Chubb Fire & Security, headquartered in Staines, tops this list with the largest team on record.
Which country has the most security systems consultants?
The United States leads with 3,807 companies, followed by the United Kingdom (2,036) and Brazil (1,126). Every security systems consultants list by country and city is linked on this page.
Which city has the most security systems consultants?
Sao Paulo leads with 248 headquartered companies, followed by London (230) and Dubai (104).
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 40,821 verified decision-maker contacts tracked across these 19,640 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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.