There was a time when venture-backed companies went to public investors when they needed to raise $100 million or more to finance their growth plans.
But deep-pocketed late stage investors, $1 billion-plus venture funds and SoftBank's $100 billion Vision Fund have changed all that in recent years.
This week's cover story in the Silicon Valley Business Journal examines the rise of the "private IPO," or PIPO, in which startups are raising $100 million or more, sometimes as early as their Series…