| Business | Phone |
| Matrix Tool Corp 1210 S Merrifield Ave, Mishawaka 46544 | (574) 259-3546 |
| Michiana Plastics Inc 1702 E 7th St, Mishawaka 46544 | (574) 259-6262 |
| Micro Tool & Machine Inc 1903 N Cedar St, Mishawaka 46545 | (574) 256-0082 |
| R & D Mold & Engineering Inc 1710 Clover Rd, Mishawaka 46545 | (574) 257-1070 |