SEICO provides security system services for all regions throughout Illinois. Our security services span from helping banks and financial institutions to small businesses, residential communities and homeowners. We provide a wide range of products, services and support to meet virtually any security demands. Learn more about our local Illinois service areas by visiting the pages below:

• Northern Illinois Security Services
• Central Illinois Security Services
• Southern Illinois Security Services

At SEICO, we have reputation as one of the top security system companies in Illinois. Whether you need indoor and outdoor CCTV surveillance, access control systems, photo ID badging, burglar and fire alarm systems, alarm monitoring or financial and banking equipment, we have the right product and support to meet your needs, and at an affordable price. Contact us for more information.