I see six entries. Where's Google, Facebook, etc?
Google and Facebook don't sell user data. It's much more profitable to keep it for themselves than to sell it to others.
Google Ads (formerly AdWords) now has an API so that customers can disable possibly-sales-like features on a per-use basis if someone clicks "Do not sell my information." So, while Google doesn't sell users information, they're only willing to go to bat and say "this is definitely not a Sale Of Information under CCPA" for a subset of the services they offer.
https://privacy.google.com/businesses/rdp/
Facebook I dunno. My sense is they have a larger appetite for testing the boundaries of the law.