> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/industries/security-and-investigations/ # Security and investigations: companies and the tools they run This group covers guard services, private investigators and physical security firms that protect people, property and assets. Browse the organizations, the technology they run and how big they are. By Enrich.chat Editorial. Updated October 21, 2026. **Short answer:** Security and investigation firms include Prosegur, GardaWorld, Tyco Integrated Security, Securitas Security Services USA and Inter-Con Security. Below are the tools they run most often, how they spread by size and how to reach branch managers, operations directors and business owners. ## What counts as security and investigations? This group covers guard services, private investigators and physical security firms that protect people, property and assets. ## Which security and investigation firms are listed here? They include Prosegur, GardaWorld, Tyco Integrated Security, Securitas Security Services USA and Inter-Con Security. The table lists a selection of larger ones in alphabetical order; names link to company profiles. | Company | Size | Tools detected | | --- | --- | --- | | Agency Network | 5,000 to 10,000 | 7 | | [Bidvest Protea Coin](https://enrich.chat/company/bidvest-protea-coin/) | 10,000 to 25,000 | 3 | | [Certis](https://enrich.chat/company/certis/) | 25,000 to 50,000 | 25 | | [Chubb Fire & Security Group](https://enrich.chat/company/chubb-fire-and-security-group/) | 10,000 to 25,000 | 29 | | [Convergint Technologies](https://enrich.chat/company/convergint-technologies/) | 10,000 to 25,000 | 36 | | Fidelity Services Group | 2,000 to 5,000 | 19 | | [GardaWorld](https://enrich.chat/company/gardaworld/) | 100,000+ | 44 | | [Gocil Tecnologia em Segurança e Serviços](https://enrich.chat/company/gocil-tecnologia-em-seguran-a-e-servi-os/) | 10,000 to 25,000 | 14 | | Grupo Gr | 2,000 to 5,000 | 25 | | Grupo Haganá | 5,000 to 10,000 | 18 | | [Grupo Protege](https://enrich.chat/company/grupo-protege/) | 10,000 to 25,000 | 18 | | HID Global | 2,000 to 5,000 | 18 | | [Inter-Con Security](https://enrich.chat/company/inter-con-security/) | 25,000 to 50,000 | 20 | | [Liderman](https://enrich.chat/company/liderman/) | 10,000 to 25,000 | 14 | | Orsegups Participações S/A | 2,000 to 5,000 | 15 | | Paladin Security Group | 10,000 to 25,000 | 36 | | [Prosegur](https://enrich.chat/company/prosegur/) | 100,000+ | 25 | | SBV South Africa | 5,000 to 10,000 | 5 | | [Securitas France](https://enrich.chat/company/securitas-france/) | 10,000 to 25,000 | 23 | | [Securitas Nederland](https://enrich.chat/company/securitas-nederland/) | 10,000 to 25,000 | 29 | | [Securitas Security Services USA](https://enrich.chat/company/securitas-security-services-usa/) | 50,000 to 100,000 | 28 | | Securitas Seguridad España | 2,000 to 5,000 | 18 | | Securitas UK | 5,000 to 10,000 | 25 | | Security Segurança e Serviços | 2,000 to 5,000 | 17 | | SegurPro | 5,000 to 10,000 | 8 | | SERIS Group | 2,000 to 5,000 | 16 | | Sicuritalia S.p.A. | 2,000 to 5,000 | 5 | | The GEO Group | 5,000 to 10,000 | 28 | | [Tyco Integrated Security](https://enrich.chat/company/tyco-integrated-security/) | 50,000 to 100,000 | 28 | | Tyco SimplexGrinnell | 2,000 to 5,000 | 4 | ## What technology do security and investigation firms use? These tools stand out among security and investigation firms: each is detected more often here than across all the organizations listed. The tick on each bar marks that wider average. **Figure: Tools that stand out among security and investigation firms.** Bars for the share of listed security and investigation firms where each tool was detected, with a tick for the share across all listed organizations: HubSpot 19% against 13%, SendGrid 17% against 9%, Marketo 15% against 7%, Episerver (Optimizely) 11% against 1%, Microsoft Application Insights 11% against 6%. *Share of listed security and investigation firms where each tool was detected. The tick marks the share across all listed organizations.* ## How big are security and investigation firms? The columns show how the listed security and investigation firms spread across six size ranges. **Figure: Size of security and investigation firms.** Six columns for the share of listed security and investigation firms in each size range from 2,000 to over 100,000 employees: 2-5K 61%, 5-10K 11%, 10-25K 17%, 25-50K 4%, 50-100K 4%, 100K+ 4%. *Share of listed security and investigation firms in each size range.* ## Security and investigations by tool Open a tool to see the security and investigation firms that use it. [Google Tag Manager](https://enrich.chat/companies-using/google-tag-manager/security-and-investigations/) ## How do you reach branch managers, operations directors and business owners at security and investigation firms? Pick an organization from the table, then ask your AI agent for the people in the roles you sell to. ```text Use www.enrich.chat to find branch managers, operations directors and business owners at [company], with titles and verified work emails ``` ## Which NAICS codes match security and investigations? Companies in this industry are filed under several industry codes. These are the NAICS codes that match it most often. [NAICS 561621: Security Systems Services](https://enrich.chat/naics/561621/)[NAICS 561612: Security Guards and Patrol Services](https://enrich.chat/naics/561612/)[NAICS 561622: Locksmiths](https://enrich.chat/naics/561622/)[NAICS 561611: Investigation and Personal Background](https://enrich.chat/naics/561611/) ## Frequently asked questions ### Which security and investigation firms are there? Security and investigation firms include Prosegur, GardaWorld, Tyco Integrated Security, Securitas Security Services USA and Inter-Con Security. The page lists a selection of larger ones with links to their profiles. ### What technology do security and investigation firms use most? Security and investigation firms are most often detected running HubSpot, SendGrid, Marketo and Episerver (Optimizely). ### How big are security and investigation firms? Listed security and investigation firms range from about 2,000 employees to well over 100,000. The columns on this page show the spread. ### Who do you sell to in security and investigations? Usually branch managers, operations directors and business owners. Ask your AI agent to use www.enrich.chat to find them with verified work emails. ## Try this prompt Find branch managers, operations directors and business owners ```text Use www.enrich.chat to find branch managers, operations directors and business owners at [company], with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Information technology and services](https://enrich.chat/industries/information-technology-and-services/) - [Hospitals and health care](https://enrich.chat/industries/hospitals-and-health-care/) - [Retail](https://enrich.chat/industries/retail/) - [Higher education](https://enrich.chat/industries/higher-education/) - [Government administration](https://enrich.chat/industries/government-administration/) - [Financial services](https://enrich.chat/industries/financial-services/) - [Banking](https://enrich.chat/industries/banking/) - [Insurance](https://enrich.chat/industries/insurance/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)