The Yahoo + UPS Partnership
Yahoo and UPS have an active Channel Partnership according to smallbusiness.yahoo.com. There are 133 companies in the Yahoo partner ecosystem and 174 companies in the UPS partner ecosystem.
6 companies exist in both ecosystems, representing 5% of the Yahoo parther ecosystem and 3% of the UPS partner ecosystem. ShipStation and Shipedge are the largest companies that exist in both ecosystems.