What's your definition of a startup? What's your measure of success? There are many many tech businesses out there doing there thing helping people out with var

What's your definition of a startup? What's your measure of success? There are many many tech businesses out there doing there thing helping people out with various computer bits n bobs. Some of these have offerings that are product-like or aiming towards being "packaged" offerings but transformation is slow, dependence on pevailing technology makes it hard to draw newsworthy points of difference and they operate in tiny pockets of an utterly enormous market. Are they start-ups? They provide a service and receive money in return, feed their employees and pay their rent, and pay for the education of their children. Are they successful?