95. Tom Reilly

CEO, Cloudera

Cloudera, a software company launched in 2008 that aims to help businesses — more than 20,000, in fact — make sense of huge data sets, has raised more than $1 billion in private funding. Investors include Intel, Google Ventures, and MSD Capital.

The company has been considering an initial public offering for more than a year to maintain its dominance in the market, but Reilly said in April that Cloudera would enter the public market only "when we've reached the right scale, when the business is more predictable, when there's greater visibility." They may have good reason to wait a while longer: Fidelity, another investor in the company, marked down the value of its Cloudera stake, along with stakes in several other startups, by 37% in March.