HSI Security 3500 Millikin Court, Suite C Columbus, OH 43228, United States 614-583-0958 http://hsisecurity.com/ [email protected] For over 70 years, HSI Security has been providing Ohio with home and corporate security systems. Their skilled staff includes experienced law-enforcement veterans who know whatworks when it comes to keeping your home or business safe. With locations in Dayton, Cincinnati, and Columbus, theteam of trained professionals can provide any property, large or small, with a customized security... read full review »