| Business | Phone |
| Battelle Dayton Operations 5100 Springfield St # 110, Dayton 45431 | (937) 254-0880 |
| Mix Tech 454 Ramsgate Dr, Dayton 45430 | (937) 431-1446 |
| Ch2m Hill 1 S Main St, Dayton 45402 | (937) 228-3180 |
| Wrw Consulting Inc 4428 Plaintree Dr, Dayton 45432 | (937) 426-0804 |
| Ginal Enterprises 148 Edinburgh Village Dr, Dayton 45458 | (937) 572-9895 |
| Robert B Pretzinger Pe 2519 S Dixie Dr # 2, Dayton 45409 | (937) 298-5411 |
| Patrick Engineering Inc 7676 Elin Ct, Dayton 45415 | (937) 836-6499 |