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Trusted Security Services in Chicago
Founded by former and current law enforcement officials, Illinois Security Services has served the Chicagoland area for 25 years, delivering comprehensive security solutions grounded in experience and integrity. Our team combines off-duty law enforcement personnel with highly trained civilian officers, ensuring clients receive specialized protection tailored to their unique needs. With over 50 years of combined industry expertise, we specialize in labor dispute management, construction site security, executive protection, and investigative services, utilizing advanced technology to enhance safety and operational efficiency.

Our commitment to rigorous training, 24/7 emergency response capabilities, and a proven track record in high-risk environments distinguish us as a trusted leader in the security sector. Licensed, bonded, and insured, we prioritize client satisfaction through transparent communication and customized security strategies designed to mitigate risks and safeguard assets.
Services
Armed Security Unarmed Guard Services Labor Dispute Protection Construction Security Executive Protection Investigations Workplace Violence Prevention Loss Prevention Security Consulting Undercover Operations
Highlights and features
  • We deploy off-duty law enforcement officers with specialized high-risk training.
  • Our 24/7 rapid response teams ensure immediate action during critical incidents.
  • Customized security plans address specific client needs across industries.
  • Decades of experience in labor dispute management and construction security.
  • Advanced surveillance technology enhances traditional physical security measures.
Services
Labor Dispute Protection
We specialize in maintaining operational continuity during labor disputes through strategic security deployment. Our services include perimeter control, executive protection, and safe transport across strike lines. With decades of experience, we help businesses prevent theft, vandalism, and workplace violence during high-tension periods.
Construction Security
Our construction security services prevent theft and vandalism at job sites through physical patrols and advanced surveillance. We offer gate control, material monitoring, and customized lighting/fencing recommendations. Proven strategies reduce project delays and protect valuable equipment and materials.
Investigative Services
Experienced law enforcement-trained investigators conduct thorough surveillance and evidence collection using cutting-edge technology. We specialize in worker's comp fraud, workplace violence cases, and corporate loss prevention. Detailed reporting ensures actionable intelligence and prosecutable evidence when required.
Executive Protection
We provide discreet, armed protection for executives and their families during high-risk situations. Services include safe transportation, home security assessments, and threat mitigation. Our personnel combine law enforcement expertise with evasive driving capabilities for comprehensive protection.
Workplace Violence Prevention
Our prevention programs combine trained security personnel with rapid response protocols to address workplace violence. Services include threat assessment, incident response, and staff training. We maintain a 98% conviction rate in apprehending offenders through meticulous evidence collection and documentation.
People
Robert C. Schaller
CEO
Former Chicago Police Officer with decades of law enforcement experience. Founded Illinois Security Services to combine police expertise with private security solutions. Recognized for building a team of decorated officers and industry specialists.
Questions
What security services do you offer?
We provide labor dispute protection, construction security, executive protection, investigations, and workplace violence prevention services tailored to client needs.
How do you handle labor strikes?
We deploy trained personnel to protect property, ensure safe operations, and maintain order during labor disputes using established protocols and rapid response teams.
Are your officers licensed?
All security personnel are fully licensed, trained, and meet strict state licensing requirements for professional security services.
Do you offer nationwide coverage?
While based in Chicago, we provide security services nationwide through our established network of trained professionals.
How quickly can you respond to emergencies?
Our 24/7 rapid response units typically arrive within one hour, depending on location and incident severity.