One sign Silicon Valley will make it: Startups, the lifeblood of the tech ecosystem, don’t seem to be eager to leave.

After all, most founders pour their resources into their startups, deferring big paychecks. That means they aren't much affected by California having the nation’s highest top marginal tax rate of 13.3% for big earners. (Not yet, anyway.)

Startups in greater San Francisco and San Jose have raised more than $56 billion so far this year. The greater New York Area remains a distant second, at $16 billion, slightly ahead of greater Boston, at $15 billion, according to PitchBook, a research firm.

it helps to have people who aren't just technically savvy, but who also have experience building companies. “That experimentation mindset is still somewhat unique to the Bay Area,”

Venture capitalists are on track to invest more than $140 billion in startups this year, up from $85 billion five years ago, according to PitchBook.

This year through Dec. 11, VCs had invested roughly $1 billion in Miami area startups—up from $489.9 in 2015, but still well behind other cities like Denver, at $1.53 billion, and Minneapolis, at $1.5 billion.