| Business | Phone |
| Applied Composites Engineering 705 S Girls School Rd, Indianapolis 46231 | (317) 243-4225 |
| Dick Enterprises Inc 5602 Elmwood Ave, Indianapolis 46203 | (317) 786-9780 |
| Scott Pattern Inc 9806 Rawles Ave, Indianapolis 46229 | (317) 897-2257 |
| J W Model & Engineering Co 5508 Elmwood Ave # 406, Indianapolis 46203 | (317) 788-7471 |