Contact Information

Customer Service:
Phone: (800) 322-5555
Fax: (916) 636-5101

Sales:
Phone: (888) SHIP-GSO (1-888-744-7476)
Email: info@gso.com

Billing:
Phone: (800) 322-5555 Ext. 6
Fax: (510) 521-1402

Corporate Address
Golden State Overnight
1201 Marina Village Parkway
Suite 300
Alameda, CA 94501