GSO offers overnight shippers the ability to conserve costs while enjoying a premium-level shipping experience. Our customers include casual shippers who send 1 or 2 packages per day, small to medium sized businesses that ship 5 to 10 packages per day, and large distributors that ship well over 1000 packages per day. All receive the same high-level customer service and on-time delivery standards that we've become known for.

GSO offers overnight delivery to every address in California and select regions of Western Nevada and Arizona. Nevada service areas include the metropolitan areas of Reno and Las Vegas. Arizona service areas include the metropolitan areas of Phoenix, Tucson and Flagstaff.

The business needs are of GSO's customers are constantly shifting and changing to adapt to ever-changing work environments.  To help with this, GSO offers a range of convenient overnight shipping options to fit any schedule.

GSO provides pickup service Monday through Friday. We do not provide pickup or delivery service on certain Holidays as outlined in our Service Holiday Schedule.

Deliveries are made Monday through Friday, with Saturday Delivery as requested. Pickup service is not available on Saturday. GSO does not provide pickup or delivery service on Sundays or Service Holidays.

GSO guarantees delivery of all packages by the published or quoted delivery time. If the package is delivered more than 10 minutes past the published or quoted time, GSO will, at its option, credit or refund the transportation charges to the shipper.

GSO package pickup options include scheduled service, on-call service, and drop boxes.

GSO's terms and information regarding legal agreements, service guarantees, customer claims, and prohibited items.

GSO will collect funds on your behalf at the time of delivery. Please indicate your request for C.O.D. service by entering a C.O.D. amount in the appropriate field when preparing your shipping documents.