Contact Us
 
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