| Business | Phone |
| American Eagle Alarm Mishawaka 46545 | (574) 271-0331 |
| Csp Custom Security Pros 1306 N Main St, Mishawaka 46545 | (574) 968-0624 |
| Indiana Security Systems 730 S Byrkit St, Mishawaka 46544 | (574) 252-5276 |
| Landmark Security Systems Inc 2311 E 3rd St, Mishawaka 46544 | (574) 256-5126 |
| Sonitrol 510 E Mishawaka Ave, Mishawaka 46545 | (574) 256-0861 |
| Sonitrol-South Bend Mishawaka Po Box 1102, Mishawaka 46546 | (574) 256-0969 |