Spacewolff - P2P marketplace for ads. Turn excess space into ad space.
AfterShip - AfterShip is the shipment tracking API for ecommerce businesses and marketplaces.
StickerRide - Let your car earn money through advertising
TrackChecker Mobile - TrackChecker Mobile app features tracking of parcels and online orders, so users don’t have to worry about losing a package by tracking the parcel right on their mobile phone screen.
Grabb-It - Location-based ads on your Uber's window
Track24 - Track24 app assists you in tracking the packages of more than 600 international courier and postal services from all around the globe.