| Business | Phone |
| American Precision Manufacturer Inc 513 Garfield Ave, Troy 45373 | (937) 332-1801 |
| Baldwin Machine Ltd 2100 Corporate Dr, Troy 45373 | (937) 335-7858 |
| Dayton Carbide Tool Co 610 N Market St, Troy 45373 | (937) 335-2181 |
| Flexible Systems Engineering Troy 45373 | (937) 440-6800 |
| Hawkins Machine Shop Inc 1112 Race Dr, Troy 45373 | (937) 335-8737 |
| Independent Machine & Welding 35 Marybill Dr S, Troy 45373 | (937) 339-7330 |
| Jayna Inc 15 Marybill Dr S, Troy 45373 | (937) 335-8922 |
| Kennedy Repair Svc 221 S Plum St, Troy 45373 | (937) 332-9118 |
| Medway Tool Corp 2100 Corporate Dr, Troy 45373 | (937) 335-7717 |
| Premier Tool Inc 1333 E Main St, Troy 45373 | (937) 332-0996 |
| Quality Fabrication & Machine 221 S Plum St, Troy 45373 | (937) 332-6849 |
| R & D Machine Inc 1204 S Crawford St, Troy 45373 | (937) 339-2545 |
| Raymath Co 2323 W State Route 55, Troy 45373 | (937) 335-1860 |
| Sharpco Inc 3 N Ridge Ave, Troy 45373 | (937) 339-5555 |
| Sherman Machine Inc 1340 S Market St # B, Troy 45373 | (937) 440-6961 |
| St Marys Tool & Die Inc 504 Floral Ave, Troy 45373 | (937) 335-8540 |
| Stillwater Technologies Inc 1040 S Dorset Rd, Troy 45373 | (937) 440-2500 |
| Sun Machine & Tool Corp 2120 Corporate Dr, Troy 45373 | (937) 339-0299 |
| Trackomatic Systems 175 Marybill Dr S, Troy 45373 | (937) 335-9353 |