AT Systems is a supplier of security systems in the Columbus area. From access control to wireless systems, they design customised solutions for their clients. The company deals in home security products such as home alarm systems, wireless alarm systems, burglar alarms, and security surveillance systems. AT Systems' business security services include installation and monitoring of IP camera, DVR, biometrics, and facial recognition systems.

Blue Knight Security Systems offer burglary and fire detection equipment manufactured by DSC and Honeywell. They also install a full line of CCTV cameras, monitors and recorders, from various manufacturers, like CNB, Flir-Digimerge and Samsung, that can be viewed via smartphone or on the Internet.

Calcom Inc. provides solutions for high tech life safety systems. They are integrated solutions specialists in fire alarm, access control, surveillance cameras, CCTV, sound and security detection systems for commercial facilities. They also install, service and program IP camera systems that can be viewed anywhere in the world from phone, tablet or laptop.

Eletronic Systems Consultants is a minority and veteran owned small business that focuses on full system integration services to include system design, installation, inspection and monitoring services for the fire and security industry. ESC was founded in January 2011 with the knowledge and experience of forty years in electronics, safety and security. Some of its services include: video surveillance, alarm detection and access control.

Shiver Security Systems, Inc. has provided integrated security solutions, access control, video (CCTV), and fire protection for thousands of customers in southwest Ohio and Northern Kentucky since 1971. Products and services offered include Sonitrol audio verification intrusion detection systems, access control systems, CCTV systems, fire detection systems, and external industrial monitoring functions.

Established in 1986 with offices in Ohio and Florida, Southeast Security Corporation offers installation services. Southeast Corporation custom designs systems for all types of commercial, industrial and governmental applications. Southeast Security is licensed in the States of Ohio and Florida for the installation of Fire Alarm Systems and is a member of the American Society for Industrial Security and National Fire Protection Association.