| Business | Phone |
| Amli Residential Prop Trust 125 S Wacker Dr 3100, Chicago 60606 | (312) 443-1477 |
| First Industrial Realty Trust 311 S Wacker Dr 4000, Chicago 60606 | (312) 344-4300 |
| Equity Residential 2 N Riverside Plz # 400, Chicago 60606 | (312) 474-1300 |
| Clarion Realty Svc 600 N Michigan Ave, Chicago 60611 | (312) 553-6150 |
| Prime Group Realty Trust 77 W Wacker Dr 3900, Chicago 60601 | (312) 917-1300 |
| Transwestern Commercial Svc 150 N Wacker Dr 800, Chicago 60606 | (312) 499-1900 |
| Strategic Hotel Capital Inc 77 W Wacker Dr 4600, Chicago 60601 | (312) 658-5000 |
| Trizec Properties Inc 10 S Riverside Plz, Chicago 60606 | (312) 798-6000 |