| Business | Phone |
| Badger Alloys Inc 5120 W State St, Milwaukee 53208 | (414) 258-8200 |
| Chipless 9644 W Flagg Ave, Milwaukee 53225 | (414) 393-1278 |
| Grede Foundries Inc 1570 S 1st St, Milwaukee 53204 | (414) 671-2345 |
| Waukesha Foundry 1300 W Lincoln Ave, Milwaukee 53215 | (414) 278-8877 |
| Maynard Steel Casting Co 2856 S 27th St, Milwaukee 53215 | (414) 645-0440 |
| Metal Masters 7240 W Greenfield Ave, Milwaukee 53214 | (414) 453-4511 |
| Midcity Foundry 1521 W Bruce St, Milwaukee 53204 | (414) 645-1327 |
| Milwaukee Gray Iron 1501 S 83rd St, Milwaukee 53214 | (414) 476-2681 |
| Milwaukee Malleable & Grey 2773 S 29th St, Milwaukee 53215 | (414) 645-0200 |
| Supreme Casting Inc 7901 N 73rd St, Milwaukee 53223 | (414) 355-1490 |
| Supreme Cores Inc 5737 W Mill Rd, Milwaukee 53218 | (414) 353-7100 |
| Starline Manufacturing Co 6060 W Douglas Ave, Milwaukee 53218 | (414) 358-4060 |
| Signicast Corp 9000 N 55th St, Milwaukee 53223 | (414) 354-1212 |