The usual reason would be because you need a large infusion of capital to expand your successful business into a major corporation. Slow growth might be a slow

The usual reason would be because you need a large infusion of capital to expand your successful business into a major corporation. Slow growth might be a slow death if some other bigger company gets into the space and eats your lunch. I don't disagree that too many companies go public with little plan beyond "make lots of money for the founders", but there is a time and place for it.