Jan Borysovych Koum (born February 24, 1976) is a Ukrainian-American billionaire businessman and computer programmer. He is the co-founder and former...
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of Signal Messenger LLC. He was formerly employed at Yahoo!. In 2009, Jan Koum and Acton co-founded WhatsApp, a mobile messaging application which was...
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founded in February 2009 by Brian Acton and Jan Koum, former employees of Yahoo! A month earlier, after Koum purchased an iPhone, he and Acton decided to...
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Cameroonian football player Jan Koum (born 1976), CEO and founder of WhatsApp Kou (name) This page lists people with the surname Koum. If an internal link intending...
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Parmy (February 2, 2014). "Exclusive: The Rags-To-Riches Tale Of How Jan Koum Built WhatsApp Into Facebook's New $19 Billion Baby". Forbes. Archived...
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opposition of a candidate in San Francisco history." Other donors included Jan Koum (co-founder of WhatsApp) and the biotech investor Oleg Nodelman, who each...
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Parmy (February 2, 2014). "Exclusive: The Rags-To-Riches Tale Of How Jan Koum Built WhatsApp Into Facebook's New $19 Billion Baby". Forbes. Retrieved...
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donation from Jan Koum, co-founder and CEO of WhatsApp – the largest single donation to the Foundation since its inception. In December 2016, Jan Koum donated...
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January 2014. "SEC Form 4 Filing - Jan Koum to SVCF". Securities & Exchange Commission. SEC.gov. "No. 4: Jan Koum - Philanthropy". Philanthropy.com. 8...
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Steve Jobs, founder of Emerson Collective, and owner of The Atlantic), Jan Koum (founder of WhatsApp), Eric Schmidt (former Google CEO), and Evan Spiegel...
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