| Business | Phone |
| Comscape Communications 1088 N Tustin Ave, Springfield 45505 | (937) 322-1345 |
| K C Communications 350 Upper Valley Pike, Springfield 45504 | (937) 322-2262 |
| L-3 Communications 1245 W Blee Rd, Springfield 45502 | (937) 325-5090 |
| Quantum Communications 1505 S Arlington Rd, Springfield 45502 | (330) 785-3070 |
| Telepage Communications 2348 Troy Rd, Springfield 45504 | (937) 399-9630 |