But there are too many to name. In 2018, you should assume that any free service (Unroll.me), web/mobile SDK (Slice), email client (Airmail), personal finance tracker (Mint), integration API (Plaid), geolocator (Foursquare), etc is monetized by selling your data en masse for market research.
It's not just location data. Dig into the TOS of free services you use. It's your receipts, your transactions, your subscriptions...all are "anonymized" to varying degrees of success. Even Meraki, the network router/switch company, sells location data.[1]
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