| Business | Phone |
| Analytical Engineering Inc 2555 Technology Blvd, Columbus 47201 | (812) 376-6472 |
| Strand Associates Sieco Div 629 Washington St, Columbus 47201 | (812) 372-9911 |
| Thinkpath Inc 3132 N National Rd, Columbus 47201 | (812) 376-8519 |
| Vista Engineering 250 Franklin St, Columbus 47201 | (812) 372-9606 |
| Regional Services Corp 3200 Sycamore Ct # 2b, Columbus 47203 | (812) 372-9511 |
| International Metrology Svc 630 Greenway Dr, Columbus 47201 | (812) 372-7969 |
| Janssen & Spaans 2510 Sandcrest Blvd, Columbus 47203 | (812) 372-6573 |
| Kamic Corp 6345 Inwood Dr, Columbus 47201 | (812) 342-8000 |
| L J Engineering 250 Franklin St, Columbus 47201 | (812) 372-3732 |
| O G Sales & Engineering 9121 S State Road 58, Columbus 47201 | (812) 342-8923 |