Justin Siegel

“General Catalyst got their hands dirty to help us in every way possible. And they’re still digging in. From assisting us with building our management team and advisors, to connecting us with other mobile companies in their portfolio, and making introductions with wireless carriers and media companies, GC has help us in every aspect of our business. Without GC, we simply wouldn’t be the largest independent social network for mobile users.”

Justin is Co-Founder and CEO of MocoSpace. An experienced mobile entertainment executive, Justin was most recently VP of publishing for SkyZone Entertainment. He led the company's product strategy, and oversaw the production and development of SkyZone's products including Duke Nukem Mobile 3D, Brine Lacrosse, The Crocodile Hunter: Operation Rescue, Encyclopedia Britannica, and Donovan McNabb Street Action.

Prior to working at SkyZone, he was Co-Founder and CEO of JSmart Technologies, a leader in casual games and entertainment for mobile devices. JSmart was acquired by SkyZone in 2004. At JSmart, Justin developed and managed key relationships with wireless and entertainment industry leaders including AT&T Wireless, Verizon Wireless, Nokia, Sony Ericsson, Merriam-Webster, King Features, and TELUS Mobility.

He also worked as a television writer and producer at NBC News Channel's foreign desk and an ABC News affiliate.

Justin is a graduate of the University of Massachusetts, earning a B.A. in Sociology and an M.A. in French Literature.

Justin Siegel Photograph
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MocoSpace, based in Boston, MA, is the leading independent mobile social network.