OSM Worldwide is the preferred shipping expediter for high-volume lightweight parcels and parcels over a pound. Partner with OSM Worldwide and you will receive deeper discounts for USPS Domestic and International Services. Since 2003, OSM Worldwide has been providing thousands of companies the best shipping rates and services available. In 2011, the Inc. 5000 and Crain's Chicago Business recognized OSM Worldwide as one of the fastest-growing private businesses in the US. Our success is directly attributable to the outstanding service we provide our customers.