| Business | Phone |
| Compositronic Sales Inc 120 W Lasalle Ave # 506, South Bend 46601 | (574) 282-1629 |
| Cubby Systems 22164 Alpine Ridge Ct, South Bend 46628 | (574) 272-1030 |
| Emsco 207 N Dixie Way # 160, South Bend 46637 | (574) 277-7090 |
| Gallagher Engineered Systems 5621 Us 31 S, South Bend 46614 | (574) 299-5355 |
| Joe Dado & Assoc Inc 59900 Myrtle Rd, South Bend 46614 | (574) 232-6888 |
| John A Horning Assoc 53420 Peggy Ave, South Bend 46635 | (574) 272-4133 |
| Lifeline Industries Inc 108 N Main St # 113, South Bend 46601 | (574) 289-2433 |
| Pmg Inc 1638 Lincoln Way E, South Bend 46613 | (574) 288-7070 |
| Quantum Polymer Usa Inc 700 W Chippewa Ave, South Bend 46614 | (574) 299-1320 |
| Sea Land Technology 700 W Chippewa Ave, South Bend 46614 | (574) 299-4080 |
| Shidler Associates 6851 Enterprise Dr, South Bend 46628 | (574) 232-7357 |
| Van Dyne-Crotty 4310 Technology Dr, South Bend 46628 | (574) 232-1950 |