| Business | Phone |
| Castech Inc 6325 W National Ave, Milwaukee 53214 | (414) 476-1230 |
| Mainline Pattern Corp 3424 W Elm St, Milwaukee 53209 | (414) 351-4044 |
| Moldwel Pattern Works 1931 S 73rd St, Milwaukee 53219 | (414) 543-8801 |
| Schneider Pattern Works 1212 S 1st St, Milwaukee 53204 | (414) 671-0400 |
| Precision Pattern Co Inc 1901 S 71st St, Milwaukee 53219 | (414) 541-5911 |