Minicab companies.
They are not 'ride sharing' or 'car pooling' or anything even similar.
The business model is old and well established,at least in london.
You know, all this confusion over what these companies are is rather silly. If you've established anything that even remotely resembles a corporation (like filing for a business license, paying employees, taxes, etc.), then it's a business.
If Bob and Tom decide to share fuel costs by carpooling to the same building every day, that's a personal agreement and a "tax" system that doesn't need to go beyond each others wallets. If Bob picks up 2 other co-workers on the way, it doesn't change the dynamics much. And let's make this clear. THIS type of organic ride sharing has been going on far longer than anyone who decided to make a business out of it.
As far as what all of this is and means, let's not confuse that either. All of these companies like Lyft and Uber and encroaching on other companies business, and this is nothing more than the large (and corrupt) establishment trying to push them out.
And yes, I gladly label this as corrupt. One should not have to resort to making another companies practices illegal in order to ensure "competition".