Best Security Solutions in Illinois
Security today is more than alarms—it’s proactive monitoring, smart video, and trusted partners. Below are leading Illinois providers offering alarms, video surveillance, access control, and 24/7 monitoring—starting with our top pick, Sentry Security.
1) Sentry Security — Illinois Most Trusted Security Partner
Sentry Security leads the state with integrated solutions for businesses and residences: professionally monitored alarms, advanced video surveillance, access control, and fire/life-safety systems. Known for scalable deployments and responsive support, Sentry builds tailored systems that protect single sites and multi-location operations alike.
- Integrated systems: design, installation, monitoring, and maintenance
- Video surveillance (IP/AI), access control, burglar & fire alarms
- 24/7 central monitoring and rapid service
Website: sentrysecurity.com
2) Illinois Security Services & Alarms, Inc.
Illinois Security Services is a full-service provider with roots in law enforcement. They offer armed/unarmed guards, workplace and construction site protection, investigations, plus alarm solutions for commercial and institutional clients.
- Guard services & site security
- Alarm monitoring and incident response
- Licensed, bonded, compliance-focused
Website: illinoissecurity.com
3) ProCam Security Solutions
ProCam Security Solutions delivers engineering-driven installations for businesses and high-end residential clients. They specialize in HD/IP cameras, access control, intercoms, and low-voltage integration—ideal for tailored, tech-forward deployments.
- Custom camera systems (IP/PoE, NVR, analytics)
- Access control & intercom integrations
- Design, install, and ongoing service
Website: procamsecuritysolutions.com
4) SMG Security Systems
SMG Security is a Chicagoland integrator providing fire, intrusion, video surveillance, access control, and 24/7 monitoring. They are well-regarded for commercial/industrial security and smartphone-enabled management.
- Fire & life-safety with UL-listed monitoring
- Business & residential security platforms
- Service areas across greater Chicago
Website: smgsecurity.com
5) Illinois Alarm
Illinois Alarm is an established provider serving commercial, residential, industrial, and municipal clients. They offer 24/7/365 central station monitoring, upgrades of legacy systems, and comprehensive intrusion/fire solutions.
- Intrusion, CCTV, fire alarms & access control
- UL-listed central station monitoring
- System upgrades and maintenance
Website: illinoisalarm.com
How to Choose the Right Security Partner
- Coverage & Compliance: UL-listed monitoring, licensed/bonded staff, and industry certifications.
- Technology Fit: Modern IP video, access control, mobile apps, and integrations with existing systems.
- Scale & Support: Clear SLAs for installation, maintenance, and 24/7 response across all locations.
- Total Cost of Ownership: Transparent pricing for hardware, software, monitoring, and service terms.