Mapbox Studio - A design platform for radically custom maps
Printmaps.net - Make high-dpi maps for print applications within minutes, using the Printmaps editor. Put custom geo data such as routes or shapes onto your map, or geocode hundreds of addresses to populate your map with POIs.
MapTiler Cloud - Online maps for web, mobile apps and desktop software.
YourMapp - YourMapp lets you turn your custom maps into an interactive app.
QGIS - QGIS is a desktop geographic information system, or GIS.
Google Maps - Find local businesses, view maps and get driving directions in Google Maps.