| Business | Phone |
| Centralarm 304 E Cardinal St, Springfield 65810 | (417) 889-8880 |
| Double U Fire Sprinklers 1344 Oaklawn, Springfield 65802 | (417) 869-5557 |
| Electronic Systems Co 1901 E Bennett St # H, Springfield 65804 | (417) 887-6620 |
| Grinnell Fire Protection 2757 S Austin Ave, Springfield 65807 | (417) 886-2242 |
| J J's Automatic 625 S Marlan Ave, Springfield 65802 | (417) 831-5969 |
| Master Guard 1925 E Bennett St, Springfield 65804 | (417) 890-8867 |