These are the Ubers and Airbnbs of the world, the startups that steadfastly remain private companies as they seek more millions in funding at higher and higher valuations.
Jay Z's entertainment company is adding startup investing to its repertoire.
Jay Z, whose real name is Shawn Carter, has been investing in tech startups since at least 2012.
The Phone Bed is exactly what you'd expect: A tiny wooden bed with silk sheets, for your phone.
Initially called the 'Netflix for workout classes,' the unlimited plan helped ClassPass make its name, since it cost $99 for an unlimited number of classes, which can cost upwards for $30 per class.
Find out how this pizza startup got its start.
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