| Business | Phone |
| Us Animal Plant Health Inspctn Po Box 66192, Amf Ohare 60666 | (773) 894-2920 |
| Us 217th Engineering Instl Sq 10601 W Higgins Rd, Amf Ohare 60666 | (773) 825-6954 |
| Us 63rd Air Evacuation Flight 10601 W Higgins Rd, Amf Ohare 60666 | (773) 825-6137 |
| Us Assistant Us Prop 10601 W Higgins Rd, Amf Ohare 60666 | (773) 825-6944 |