Google doesn’t do open geodata: they’re the only major internet company not to be invested in OSM in some way, preferring instead to build up their own proprietary geo database.
Bing was a gold sponsor of the most recent State of the Map (global conference) in Japan, Facebook silver: http://2017.stateofthemap.org
Bing has for years allowed the use of their sat images for OSM tracing.
Bing has given OSM tracing rights over its aerial imagery for several years now - it's hard to overestimate how significant that is.
Apple (as you'd expect) has been much more private about its OSM work, but it has numerous people working on it and has been surfacing OSM data in Apple Maps in several parts of the world.
It used to be Yahoo aerial in the early days.