I owned a cab company for 17 years. I can absolutely say anyone anywhere can open up a cab company. I had a dozen companies try to get in " my territory  ". I stopped eight of them ( they gave up and didn't try hard enough ) while four of them I could not stop. If anyone requests I will tell you how to do it because I fought them and know how they did it. It is very very simple. Public  need  and nesscessity  is easy to prove in many ways. It is also easy to "get around "  the " alledged " harming of  the existing companies. The third one ( if I remember correctly ) proving fitness is fairly forthright. Just ask and I shall tall