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50 leading Security Systems Services companies in the world

Tamtam tracks 121 Security Systems Services companies worldwide. This list ranks the 50 largest by number of employees on LinkedIn, led by DEF, Pavion and Per Mar Security Services. Their median headcount is 222. Half of them were founded in 1996 or later. The most common headquarters are São Paulo (4), Bengaluru (2) and Chantilly (2).

🌍 World50 companiesUpdated Nov 14, 2026

This selection showcases large and mid-sized companies specializing in Security Systems Services across the globe. These firms offer a wide array of solutions, from fire safety and general security to advanced biometric and data analytics for border security. Many have a long-standing presence, with several founded in the late 20th century.

Notable companies include DEF, a French firm with expertise in fire safety systems for the nuclear sector; Pavion, providing fire, security, and integration solutions; Per Mar Security Services, a Midwest provider of residential and business security; and Securion, offering innovative security services in Argentina. The data reveals a global distribution of these companies, with significant representation in North America, South America, Europe, Africa, and Asia.

#CompanyIndustryHeadquarters EmployeesFounded
1
DEFdef-online.com

French company, fire safety system solutions and services, from design to maintenance, including international sites and nuclear sector expertise.

Security Systems Services 🇫🇷 Massy 2,554 1958
2
Pavionpavion.com

A company providing fire, security, and integration solutions across multiple industries with a focus on safety, security, and communication

Security Systems Services 🇺🇸 Chantilly 2,143 n/a
3
Per Mar Security Servicespermarsecurity.com

A leading security solutions provider in the Midwest offering residential and business security services including alarms, monitoring, surveillance, investigations, and background checks

Security Systems Services 🇺🇸 Davenport 1,381 1953
4
Securionsecurion.com.ar

Providing innovative security services tailored to each client's needs nationwide for over 30 years

Security Systems Services 🇦🇷 Buenos Aires 1,225 2000
5
Securex Agencies Ltdsecurexafrica.com

A leading security company in East Africa, offering quality security solutions tailored to clients' needs, with 50 years of experience

Security Systems Services 🇰🇪 Nairobi 1,010 1970
6
Innovativiewinnovatiview.com

Specializing in safeguarding critical examinations, elections, and events in India, we combine technology and skilled personnel to enhance security measures through innovative solutions

Security Systems Services 🇮🇳 Noida 905 2010
7
CPI Securitycpisecurity.com

A leader in security and home automation solutions, offering a positive work environment with competitive pay, benefits, and opportunities for growth

Security Systems Services 🇺🇸 Charlotte 831 1991
8
Carsystem Oficialcarsystem.com

A provider of vehicle protection services, including insurance against theft, tracking, and assistance services, with over 1 million vehicles protected in Brazil since 2001

Security Systems Services 🇧🇷 São Paulo 672 2001
9
FIRST SECURITYfirstsecurity.cl

Chilean private security company offering comprehensive services nationwide for over 29 years, prioritizing client and employee well-being with various benefits and timely obligations

Security Systems Services 🇨🇱 Viña del Mar 506 1994
10
ERYMA SECURITY SYSTEMSeryma.com

Designing and deploying custom cybersecurity systems including remote monitoring and maintenance to protect property and people through open electronic safety solutions.

Security Systems Services 🇫🇷 Issy-les-Moulineaux 497 1996
11
Argenbright Security Europe Limited - ASELasel.co.uk

A technology-driven risk management organization formed by merging two leading security companies, specializing in data, technology, and innovation Part of a 40-year-old transformation group

Security Systems Services 🇬🇧 London 488 n/a
12
Schrack Seconet AGschrack-seconet.com

An Austrian high-tech company specializing in fire alarm systems, health care systems, and security solutions, with a focus on people

Security Systems Services 🇦🇹 Vienna 441 1994
13
AnG Indiaangindia.in

Specializing in security surveillance and fire detection, providing CCTV products, access control systems, and custom engineered solutions for various environments since 1978

Security Systems Services 🇮🇳 Noida 401 1992
14
ZKTeco Indiazkteco.in

The organization is a leading provider of biometric products and electronic security solutions, focusing on local content development and innovation for safer living

Security Systems Services 🇮🇳 Bengaluru 379 2003
15
Securiportsecuriport.com

Securiport provides innovative technology solutions using biometrics and data analytics to enhance border security and civil aviation safety globally

Security Systems Services 🇺🇸 Reston 352 2001
16
ANAVEO GROUPEanaveo.fr

Provider of intelligent security systems and connected objects for data protection, environment monitoring, and anomaly detection across various industries using expert technicians.

Security Systems Services 🇫🇷 Champagne-au-Mont-d'Or 343 1995
17
Brihaspathi Technologies Limitedbrihaspathi.com

An IT products and solutions company offering web solutions, E-Mobility, security systems, software development, and more to a wide range of clients

Security Systems Services 🇮🇳 Hyderabad 336 2006
18
VIGFAT VIGILÂNCIA PATRIMONIALvigfatvigilancia.com.br

Provider of security and surveillance services for over 10 years, based in Rio de Janeiro, offering tailored solutions for residential, commercial, and industrial clients

Security Systems Services 🇧🇷 Duque de Caxias 329 n/a
19
Istituto di Vigilanza Coopservice S.p.A.vigilanzacoopservice.it

A security company specializing in surveillance services, utilizing advanced technology and professional staff to protect clients from various risks

Security Systems Services 🇮🇹 Reggio Emilia 327 2023
20
InVueinvue.com

A global technology company providing innovative merchandising, security, and IoT solutions to protect and promote valuable assets for improved operations

Security Systems Services 🇺🇸 Charlotte 308 2007
21
Hirsch USAhirschsecure.com

Global leader in authentication and security solutions, specializing in frictionless access, protecting identities, securing IP, driving IoT innovation, and digitally securing the physical world

Security Systems Services 🇺🇸 Santa Ana 302 1981
22
Banham Groupbanham.co.uk

The company specializes in high quality security locks, physical and electronic security solutions in London and the home counties since 1926

Security Systems Services 🇬🇧 London 260 1926
23
Tracklinktracklink.com.ec

Tracklink ensures peace of mind through vehicle monitoring & protection for your family, assets & loved ones Learn more about our culture at the provided link

Security Systems Services 🇪🇨 Guayaquil 244 1997
24
IDSidsprotect.co.za

A technology-led company offering advanced intrusion solutions for home and business security, with a focus on customization and global standards compliance

Security Systems Services 🇩🇪 New Germany 236 1985
25
SICPA América do Sulsicpa.com

Leading provider of security solutions in identification, traceability, and authentication for governments, industries, and high-security prints worldwide With expertise in security inks

Security Systems Services 🇧🇷 Rio de Janeiro 222 1977

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26
ERIS (Etudes et Réalisations d'Installations de Sécurité)eris-di.com

Designing, installing, and maintaining electronic security systems including fire detection, anti-intrusion, access control, and video surveillance for complex environments.

Security Systems Services 🇫🇷 Ivry-sur-Seine 215 1974
27
Federal Seguridadfederalseguridad.cl

Industry leader in Chile offering advanced technology for residential and commercial security, including alarms, monitoring, CCTV, private guards, and access control systems for rent

Security Systems Services 🇨🇱 Santiago 196 2007
28
Sector Alarm Italiasectoralarm.it

A leading home security company in Europe with over 25 years of experience, serving over 650,000 clients Expertise in customized security solutions

Security Systems Services 🇮🇹 Milan 193 2021
29
The Brooknight Groupthebrooknightgroup.co.uk

A trusted security provider with 29 years of experience, offering reliable, innovative, and customer-centric security services to corporate and retail clients

Security Systems Services 🇬🇧 Milton Keynes 180 1994
30
DeterTech | UKdetertech.com

Providing intelligence-led security services including crime intelligence, forensic marking, and site security to reduce crime risks effectively.

Security Systems Services 🇬🇧 Telford 180 1993
31
Pavionpavion.com

Provider of fire, security, and communication integration solutions for customers in various industries across the US and globally Promotes safety and transformation through technology

Security Systems Services 🇺🇸 Chantilly 178 n/a
32
Infiniti Building Solutions Pvt Ltdinfinitiindia.com

A system integration company specializing in Fire Safety, Electronic Security Systems, Building Management, Lighting Automation, and Audio Solutions for various industries

Security Systems Services 🇮🇳 Hyderabad 175 2013
33
Rakshak Securitas Pvt. Ltd.rakshaksecuritas.com

A leading Security & Facility Management Company with 21 years of excellence, serving over 500 clients nationwide with services ranging across India

Security Systems Services 🇮🇳 New Delhi 172 2002
34
Watchtower Securitywatchtower-security.com

Specializing in all-inclusive surveillance services for the multi-family housing industry, offering the benefits of HD video surveillance without the usual complications and costs

Security Systems Services 🇺🇸 St. Louis 170 2004
35
Solid Systems Groupsolidsystemsgroup.eu

A rapidly growing company operating in electronic security and electrical engineering across 6 European countries with 14 locations and 300 employees

Security Systems Services 🇳🇱 Werkendam 168 1991
36
SafeTouch Securitysafetouch.com

A security systems company located in Jacksonville, Florida, providing solutions to keep homes and businesses safe with innovative technology

Security Systems Services 🇺🇸 Jacksonville 168 1984
37
Grupo Unifort Segurançaunifortseguranca.com.br

Providing security services for 15 years through various divisions including security, technology solutions, and vigilante training for businesses of all sizes

Security Systems Services 🇧🇷 Cuiabá 168 2007
38
i2G Systemsi2gsystems.com

Specializing in security, fire alarm, and life safety systems, we focus on quality, craftsmanship, and professional service for our clients

Security Systems Services 🇺🇸 Ann Arbor 167 2013
39
Panther Segurançavagas.pantherseguranca.com.br

Specializing in providing security services since 1995 for condominiums, industries, businesses, and residences with a team of 300 well-trained employees and over 52 vehicles

Security Systems Services 🇧🇷 Jacareí 166 1995
40
SECURITY FORCEsecurityforcenow.com

A locally owned company specializing in residential and commercial security systems with camera surveillance, 24/7 monitoring, quality Honeywell products, and IP access

Security Systems Services 🇺🇸 Indianapolis 163 2007
41
Eneffen Technologies Private Limitedeneffen.com

The company offers Integrated Building Management Solutions for energy optimization, safety, and security, leading to cost savings in building operations

Security Systems Services 🇮🇳 Bengaluru 162 2010
42
ISTC Corp.istccorp.com

A leading distributor of IT, connectivity, surveillance, security, access control, and automation products in Latin America and the Caribbean, offering comprehensive solutions for projects

Security Systems Services 🇺🇸 Miami 160 1995
43
Veolink Sistemas Integrados de Segurança Eletronicagraber.com.br

VEOLINK is a security and automation systems integrator, providing tailored solutions for clients nationwide across various industries

Security Systems Services 🇧🇷 São Paulo 160 2005
44
PACOMpacom.com

Development and support of integrated, cost-effective, and reliable enterprise security communication solutions for global organizations across multiple continents.

Security Systems Services 🇦🇺 Macquarie Park 158 1984
45
ARA Securitysecurity.aragroup.com

Provider of innovative turnkey security solutions in Australia, specializing in electronic security systems, locksmithing services, and integrated solutions for various industries

Security Systems Services 🇦🇺 Kingsgrove 158 n/a
46
Grupo Loyalgrupoloyal.com.br

A group offering integrated solutions in surveillance, security, maintenance, and cleaning services, delivering quality work at competitive costs to clients

Security Systems Services 🇧🇷 São Paulo 156 1970
47
Linxx Global Solutions an RMGS Companylinxxglobal.com

A reputable company offering training, security, and technology services for over 15 years

Security Systems Services 🇺🇸 Virginia Beach 155 2006
48
ESC Fonseccas Segurançaescseguranca.com.br

Security company with over 25 years of experience in security services, catering to events, personal protection, asset protection, escorting, and electronic security

Security Systems Services 🇧🇷 São Paulo 155 2009
49
Tenco Grouptenco.mx

Leading technology company with over 30 years of experience, specializing in design, installation, integration, and maintenance of various low voltage systems for buildings

Security Systems Services 🇲🇽 Chihuahua 154 1989
50
PKE Deutschland GmbHpke-group.com

A German company specializing in building automation, security, and communication technology, offering consulting, planning, project implementation, and after-sales services

Security Systems Services 🇩🇪 Munich 154 n/a

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 14, 2026.

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