| Business | Phone |
| Apex Engineering Inc 5521 Industrial Rd, Mt Vernon 47620 | (812) 838-0148 |
| Innovative Design Engineering 400 Mulberry St, Mt Vernon 47620 | (812) 838-3085 |
| Moore & Assoc 1262 Main St, Mt Vernon 47620 | (812) 838-4000 |
| Quality Execution Inc 1511 Main St, Mt Vernon 47620 | (812) 838-1601 |