Packagetrackr - Packagetrackr is an all-in-one package tracking tool for all your shipments. Packagetrackr will remember all of your tracking numbers and pull delivery status information from dozens of carrier with extra features not offered on the carriers' sites.
AfterShip - AfterShip is the shipment tracking API for ecommerce businesses and marketplaces.
Cabubble - Taxi and minicab quotes for London, Birmingham, Manchester and throughout the UK. Book a licensed taxi or minicab online via website or mobile app.
17track - All-in-one package tracking
Digital Waybill - Digital Waybill is an online delivery ordering courier software solution that provides features & functions to help manage online ordering, GPS tracking and more.
Sendcloud - The all-in-one shipping platform for e-commerce