| Business | Phone |
| Carbonic Service Co 4714 Speedway Dr, Fort Wayne 46825 | (260) 484-0115 |
| Extinguisher Co 4117 Merchant Rd, Fort Wayne 46818 | (260) 497-9110 |
| Fire Systems Inc 1901 Production Rd, Fort Wayne 46808 | (260) 484-2531 |
| Simplex Grinnell 122 E Collins Rd, Fort Wayne 46825 | (260) 484-5604 |
| Summitline Industries Inc 7822 Opportunity Dr, Fort Wayne 46825 | (260) 490-2213 |