A startup is a company that has captured a small percentage of the overall market it is attempting to fulfill. For example, I would say Tesla Motors is still a

A startup is a company that has captured a small percentage of the overall market it is attempting to fulfill. For example, I would say Tesla Motors is still a startup. By contrast, I would not consider crranky's Blogspot website a startup because I suspect it has captured most of the small, shrinking market it targets.