The “Jobs” star has been a longtime investor in early-stage technology, and has become perhaps the best-known celebrity for backing startups. Kutcher, Madonna manager Guy Oseary and media-minded billionaire investor Ron Burkle formed A-Grade Investments to formalize what they were already doing in the sector. A-Grade has backed companies including Spotify, Airbnb, Foursquare, Fab, Uber, Dwolla and Path.
Overbrook Entertainment, founded in 1998 by Smith and James Lassiter, is a production and management company. Smith’s investments and those of Overbrook have included Fancy, Viddy, BlackJet, JibJab and PluggedIn.
Robert Downey Jr.
The “Iron Man” star, along with Steve Levin, founded Downey Ventures to invest in digital media startups and to incubate consumer entertainment tech companies. Downey and the firm have coin in Maker Studios and MediaSpike.
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With a long-standing interest in technology and a fascination with medical innovation, the “House” star, a self-professed closet techie, has been tracking several early-stage companies and new platforms. He is an investor in Prevoty, Guide and Thinaire.