An interesting article on US 60 minutes last night discussing Planet Labs: https://www.cbsnews.com/news/private-company-launches-largest-fleet-of-satellites-in-human-history-to-photograph-earth-60-minutes/
Interesting notes:
Captures 1.2 million isatellite mages around the world EVERY DAY
> 200 customers - majority in agriculture
Largest customer is the National Geospatial Intelligence Agency
A little snooping suggests imagery is mostly 3 and 5 metre resolution, but they do have a high res offering of 72cm.