Although it's no secret that the US Postal Service uses FedEx and UPS for portions of their delivery system (and likewise, FedEx and UPS use the USPS, too), did you know that FedEx was the USPS's largest contractor in Fiscal Year 2012 to the tune of more than $1.6 billion dollars?
Quote:Top-ranked FedEx transports Express Mail, Priority Mail and First Class Mail and earned postal revenues of more than $1.618 billion in fiscal 2012 – up from $1.495 billion. Ironically, FedEx is both one of the Postal Service's closest competitors and its largest business partner.
The below list features the top 10 suppliers, showing rankings for Fiscal Year 2012 and FY 2011 (October 1, 2011 – September 30, 2012), from the full top 150 report. The list is prepared based on data received from the U.S. Postal Service in response to Freedom of Information Act requests. Entries for known affiliated companies are consolidated to obtain a more accurate representation.

For more information, checkout this link:
http://www.huschblackwell.com/fedex...cutive-year/