Top 10 Security System Integrators in the U.S.
The U.S. security industry has evolved far beyond traditional alarm systems. Today’s integrators design complex ecosystems that combine video surveillance, access control, cybersecurity, and AI-powered analytics. From protecting corporate campuses to securing critical infrastructure, system integrators play a central role in how organizations manage risk and safety. This article highlights the leading companies shaping this space and explains why they matter.
About the security market of the U.S.
The United States has one of the most advanced and competitive security markets in the world. Demand is driven by rising concerns about cyber-physical threats, regulatory compliance, and the need for real-time situational awareness. Enterprises are increasingly shifting toward cloud-based security platforms, integrating video with data analytics, and adopting AI to detect anomalies.
Another defining trend is convergence. Physical security is no longer separate from IT. Integrators must understand networking, cloud architecture, and cybersecurity alongside cameras and sensors. This has raised the bar for service providers, favoring large firms with multidisciplinary expertise and nationwide reach.
Largest security system integrators in the U.S.
Johnson Controls (JCI)
Company type: Public
Founded: 1885
Headquarter: Milwaukee, Wisconsin, USA
Key products/services: Building automation, access control, video surveillance, fire protection
Revenue (2025): ~$27B
Johnson Controls is a global powerhouse in smart building technologies. Its security division integrates access control, video systems, and fire safety into unified platforms. The company’s strength lies in large-scale enterprise and critical infrastructure projects, where deep integration with building management systems is essential.
Securitas Technology
Company type: Private
Founded: 1934 (parent company)
Headquarter: Uniontown, Ohio, USA
Key products/services: Electronic security, monitoring, video surveillance
Revenue (2025): ~$3B+
Securitas Technology focuses on advanced electronic security solutions. It combines global reach with local expertise, offering scalable systems for retail, healthcare, and enterprise clients. Its integration of remote monitoring and analytics makes it a strong player in modern security ecosystems.
Convergint
Company type: Private
Founded: 2001
Headquarter: Schaumburg, Illinois, USA
Key products/services: Security integration, consulting, managed services
Revenue (2025): ~$2.5B+
Convergint has built a reputation for customer-focused service and technical expertise. It specializes in customized solutions for finance, healthcare, and government sectors. Its collaborative approach and strong partner ecosystem help it deliver complex, multi-site deployments.
ADT Commercial (Everon)
Company type: Private
Founded: 1874 (ADT origins)
Headquarter: Boca Raton, Florida, USA
Key products/services: Commercial security, fire systems, monitoring
Revenue (2025): ~$2B+
ADT Commercial, now operating as Everon, focuses on enterprise-level security solutions. It leverages decades of brand recognition while shifting toward modern, cloud-enabled platforms. Its nationwide service network is a major advantage.
Allied Universal
Company type: Private
Founded: 1957
Headquarter: Irvine, California, USA
Key products/services: Guarding, integrated security systems, risk consulting
Revenue (2025): ~$20B+
Allied Universal blends physical security services with technology integration. Its scale allows it to offer end-to-end solutions, from on-site personnel to advanced surveillance systems. This hybrid approach appeals to large enterprises seeking unified security management.
Black Box
Company type: Private
Founded: 1976
Headquarter: Plano, Texas, USA
Key products/services: IT infrastructure, video surveillance, networking
Revenue (2025): ~$1B+
Black Box operates at the intersection of IT and physical security. Its expertise in networking and communications makes it a strong choice for organizations seeking integrated digital and physical environments.
Guidepost Solutions
Company type: Private
Founded: 2010
Headquarter: New York, USA
Key products/services: Security consulting, investigations, compliance
Revenue (2025): ~$200M+
Guidepost Solutions focuses on advisory and high-level security strategy. While not a traditional integrator, it plays a key role in designing and overseeing complex security implementations for corporate and government clients.
Redwire (ADSI)
Company type: Private
Founded: 2000s (ADSI origins)
Headquarter: USA
Key products/services: Security integration, life safety systems
Revenue (2025): ~$100M+
Redwire, through ADSI, delivers tailored security and life safety solutions. It is known for its flexibility and ability to handle mid-sized yet technically demanding projects across various industries.
Schneider Electric
Company type: Public
Founded: 1836
Headquarter: Rueil-Malmaison, France (U.S. major operations)
Key products/services: Building management, security systems, energy solutions
Revenue (2025): Approx. $35B+
Schneider Electric integrates security into broader smart building and energy management platforms. Its solutions are widely used in industrial and enterprise environments where efficiency and security must work together.
Low Voltage Solutions (LVS)
Company type: Private
Founded: 2010s
Headquarter: USA
Key products/services: Access control, surveillance, structured cabling
Revenue (2025): Estimated $50M+
Low Voltage Solutions is a growing regional integrator specializing in cost-effective deployments. It focuses on commercial clients and delivers reliable systems with a strong emphasis on service and responsiveness.
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