According to our records, this business is located at 1102 N 18th St. in Decatur (in Macon County), Illinois 62521, the location GPS coordinates are: 39.8534098 (latitude), -88.9307382 (longitude). HSI Systems is categorized under Noise Control Equipment (SIC code 5084). Known organization owner is Robert D Curry. Current estimates show that the unit has a sales volume of $24,480,000 and staff of approximately 45 people. You can contact the company by phone at (217) 422-8880; the following fax number is also provided: (217) 423-6565. Business website can be accessed at www.hsisystems.com.