John Yoo

Rockyou, Inc. develops social game advertising platform. Its advertising products enable brands and game developers to reach and monetize audiences through social advertising solutions, including video products and in-game brand integrations. The company was founded by Lance Tokuda, Ryo Ishizuka and Jia Shen in 2005 and is headquartered in San Francisco, CA.

Zynga, Inc. provides social game services. It develops, markets and operates social games as live services played on mobile platforms such as Apple's iOS operating system and Google's Android operating system, and social networking sites such as Facebook. It offers Chess with Friends, Crazy Cake Swap, Draw Something, FarmVille, Gems with Friends, Ice Age: Arctic Blast, Looney Tunes Dash, Speed Guess Something, What's The Phrase, Wizard of Oz Magic Match, Yummy Gummy, Free Slots, Black Diamond Casino, Hit It Rich, Zynga Poker and Willy Wonka Slots. The company was founded by Mark Jonathan Pincus on April 19, 2007, and is headquartered in San Mateo, CA.

Sparkplay Media was founded in 2006 by the CEO and CTO of the successful niche MMO company Iron Realms Entertainment in order to take the knowledge and expertise they had accumulated while building a portfolio of niche MMOs at Iron Realms and duplicate that success in a much wider market. They have developed an internal platform to allow for the rapid deployment of low barrier-to-entry MMOs. It's first such game Earth Eternal is currently in Open Beta and available to play

Gazillion, Inc. develops and publishes free-to-play online games. The firm operates massively multiplayer online games and services for wide audiences. The company was founded by Robert Hutter, Bhavin Shah, and John Romero in 2004 and is headquartered in Foster City, CA.

P2 Entertainment, Inc. develops, publishes, and operates networked multiplayer games. The company is best known for its two popular games, Star Trek Online, and Gods & Heroes. The company was established in March, 2002 and is headquartered in San Francisco, CA.

Cryptic Studios, Inc. Develops, publishes, and operates multiplayer online games. Its products include star trek, champions online, in development, and previous projects. The company was founded in July 2000 and is headquartered in Los Gatos, CA.

Blizzard Entertainment, Inc. is a publisher of entertainment software. The firm develops and publishes video game software. It offers several games include world of warcraft, warcraft Iii, Reign of chaos, diablo II and starcraft. The company was founded by Mike Morhaime, Allen Adham and Frank Pearce in February 1991 and is headquartered in Irvine, CA.

Rumble Entertainment, Inc. develops and publishes online games. It offers games which are free-to-play and available across a variety of browsers, mobile devices and social networks. The company was founded by Mark Fussell, Greg Faillace, Mark Spenner, John Yoo, Greg Richardson, Richard Lee Thompson and David O'Connor in 2011 and is headquartered in San Mateo, CA.