| Business | Phone |
| Hnf Usa Inc 1699 Wall St 402, Mount Prospect 60056 | (847) 427-8353 |
| Merrill Corp 2060 S Carboy Rd, Mount Prospect 60056 | (847) 718-0160 |
| Northwest Engineering 510 E Rand Rd, Mount Prospect 60056 | (847) 577-0436 |
| Vanguard Tool & Engineering 555 W Carboy Rd, Mount Prospect 60056 | (847) 981-9595 |