| Business | Phone |
| Standard Die Supply Inc 927 S Pennsylvania St, Indianapolis 46225 | (317) 236-6200 |
| Quality Gage Co 2424 Production Dr, Indianapolis 46241 | (317) 241-9361 |
| Ray & Schumaker Tool Corp 517 E Walnut St, Indianapolis 46202 | (317) 631-9571 |
| Precise Tool & Engineering 2227 Massachusetts Ave, Indianapolis 46218 | (317) 638-5361 |
| Mallory & Weiland 2048 S Meridian St, Indianapolis 46225 | (317) 248-1732 |
| Johnson Engineering Co 5641 S Harding St, Indianapolis 46217 | (317) 783-3800 |