| Business | Phone |
| Schuler Manufacturing Co 4570 Edgewyn Ave, Hilliard 43026 | (614) 876-7347 |
| Classic Manufacturing 4144 Anson Dr, Hilliard 43026 | (614) 771-0310 |
| Conductive Machining Co 4164 Anson Dr, Hilliard 43026 | (614) 529-1142 |
| Mid-Ohio Products Inc 4329 Reynolds Dr, Hilliard 43026 | (614) 771-2795 |
| Isostatic Processing Group 4329 Reynolds Dr, Hilliard 43026 | (614) 771-9110 |
| Jit Co 2180 Venus Dr, Hilliard 43026 | (614) 529-8010 |