| Business | Phone |
| A A Avenue Business Ctr 500 N Michigan Ave 300, Chicago 60611 | (312) 238-0220 |
| Hq Global Workplaces 203 N La Salle St 2100, Chicago 60601 | (312) 346-2030 |
| Hq Global Workplaces 10 S Riverside Plz 1800, Chicago 60606 | (312) 474-6000 |
| James G Elliott & Co 20 N Wacker Dr, Chicago 60606 | (312) 236-4900 |
| John M Harrison & Co 211 E Ohio St, Chicago 60611 | (312) 923-1000 |
| Lincoln Park Executive Offices 2502 N Clark St, Chicago 60614 | (773) 871-9994 |
| Shared Office Svc 2000 N Racine Ave, Chicago 60614 | (773) 871-6000 |
| Theatre District Business Ctr 60 W Randolph St, Chicago 60601 | (312) 762-9200 |
| Mr Office Ctr 17 N State St 1700, Chicago 60602 | (312) 701-1717 |
| Suites Collection 101 W Grand Ave, Chicago 60610 | (312) 994-2700 |
| Business Alliance Svc 676 N Saint Clair St, Chicago 60611 | (312) 943-0412 |
| Tree Studios Medinah Temple 4 E Ohio St, Chicago 60611 | (312) 762-9300 |
| Ups Store 1111 E 87th St 800, Chicago 60619 | (773) 721-5500 |
| Summit Real Estate Investment 2835 N Sheffield Ave, Chicago 60657 | (773) 880-8841 |