DQS Inc.

1130 W. Lake Cook Rd.
Suite 340
Buffalo Grove, IL 60089

Phone :1-800-285-4476


Office Hours:
Monday through Friday
7:00 am to 5:00 pm Central Standard Time (CST)

Contact Form:

Contact us with the below form, or you can contact DQS Holding. If you are contacting us regarding a complaint, you can view our complaint management process.