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Siri, Inc. was founded in 2007 by Dag Kittlaus (CEO), Adam Cheyer (VP Engineering), Tom Gruber (CTO/VP Design), and Norman Winarsky.
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On October 13, 2008, Siri announced it had raised an $8.5 million Series A financing round in investments, led by Menlo Ventures and Morgenthaler Ventures.
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In November 2009, Siri raised a $15.5 million Series B financing round from the same investors as in their previous round, but led by Hong-Kong billionaire Li Ka-shing
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Siri was acquired by Apple on April 28, 2010
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On October 4, 2011, Apple introduced the iPhone 4S with their version of Siri.
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The original app for the blackberry and Android phones for siri ceased to function on October 15, 2011
