The difference between what delivery services like Doordash and what Taxi companies are doing is that Doordash is holding themselves out to be the company.

There's several instances where Company A has had Service Provider B set up a website in the name of Company A, update Google Listings to replace the Phone number and website of Company A with their own version of the site.

Then when an unwitting customer calls the number given, they're actually talking to Service Provider B, not Company A.

Taxi services don't hold themselves out as the personal driver service for the company you're going to.