Non-emergency healthcare transportation is a pretty big market that can't be served well by taxi companies. You may not have noticed the ubiquitous branded vans

Non-emergency healthcare transportation is a pretty big market that can't be served well by taxi companies. You may not have noticed the ubiquitous branded vans which drive around large cities ferrying seniors around. They're operated by numerous small-to-medium companies. I'm sure there's a few large regional companies at it as well. Uber has probably already disrupted that industry in a large way. I'd be quaking in my boots right now if I made my living doing this.