| Business | Phone |
| Shima American Corp 222 Spring Lake Dr, Itasca 60143 | (630) 760-4330 |
| Il Road Transit Builders Assn 500 Park Blvd 1250, Itasca 60143 | (630) 773-1220 |
| Itasca Walk In Ministry 336 W Center St, Itasca 60143 | (630) 467-0133 |
| National Safety Council 1121 Spring Lake Dr, Itasca 60143 | (630) 775-2213 |
| National Spasmodic Dysphonia 300 Park Blvd, Itasca 60143 | (630) 250-4504 |
| Underground Contractors Assn 500 Park Blvd, Itasca 60143 | (630) 467-1919 |
| Wheat Ridge Ministries 1 Pierce Pl 250e, Itasca 60143 | (630) 766-9066 |