New answers tagged large-datasets
If you're using ArcGIS: You can use the Near tool. You can also use the Spatial Join tool and under Match Options, choose Closest.
AWS has a number of geocoding servers available now. Get your own server and dump your data there. https://aws.amazon.com/marketplace/search/results/ref=dtl_navgno_search_box?page=1&searchTerms=geocode https://aws.amazon.com/marketplace/pp/B013CW6HOA https://aws.amazon.com/marketplace/pp/B0112MQ63Y
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