| Business | Phone |
| American Fence Assn 800 Roosevelt Rd C312, Glen Ellyn 60137 | (630) 942-6598 |
| Chicago Floorcovering Assn 799 Roosevelt Rd 4-01, Glen Ellyn 60137 | (630) 469-7199 |
| Cooperative Assoc-Special Ed 22w600 Butterfield Rd, Glen Ellyn 60137 | (630) 942-5600 |