CSO, Inc.


Contact Us

Phone/Fax

Phone: 773-471-4700 or Toll Free: 1-888-276-4467

Fax: 773-471-4770        TDD/TTY: 773-471-4772

Mailing Address

6845 S. Western Ave
Chicago, IL 60636

Hours of Operation

Monday - Friday 8:30 a.m. -  4:30 p.m.
Closed Saturday and Sunday