| Business | Phone |
| Gray Machinery Co 77 E Palatine Rd, Prospect Heights 60070 | (847) 537-7700 |
| Rental Project Management Inc 200 Ferndale Ct, Prospect Heights 60070 | (847) 392-3938 |
| Sky International Inc 421 Dorset St, Prospect Heights 60070 | (847) 788-1557 |
| Traxess Usa 105 Golf View Cir, Prospect Heights 60070 | (847) 670-3580 |