| Business | Phone |
| Boldt Consulting Svc 308 W Erie St, Chicago 60610 | (312) 988-3680 |
| C Abdul Hameed Consuumer Svc Chicago 60644 | (773) 287-5419 |
| Center For Renters Rights 3007 N Ashland Ave, Chicago 60657 | (773) 244-8152 |
| Citizens For Fair Assessment 676 N La Salle Dr, Chicago 60610 | (312) 573-1818 |
| Citizens Utility Board 208 S La Salle St 1760, Chicago 60604 | (312) 263-4282 |