https://www.cbinsights.com/research/alternative-data-future-...
Satellite image companies sell this type of alternative data to buyers:
https://newsroom.haas.berkeley.edu/how-hedge-funds-use-satel...
https://www.theatlantic.com/magazine/archive/2019/05/stock-v...
Some of the vendors are RS Metrics, Descartes Labs and Orbital Insight.