File a Complaint against Granite Networks, Inc.
Does your complaint qualify?
Business Headquarters Location
address:
P.O. Box 1779,
Royal Oak, MI 48068
phone number:
(888) 838-0112If you have any questions or concerns, please contact the BBB assigned to your complaint:
contact BBB of Michigan
address:
3330 Claystone St SE
Grand Rapids, MI 49546
phone number:
517-837-2162