Jan Koum’s profile picture

Jan Koum

CEO, cofounder, WhatsApp Inc.
Jan Koum’s profile picture
Net worth 2018: $9.14 Billion
Industry: Technology
Residence: Kiev, Ukraine
Country: United States
BirthDay: 24 February 1976
Sigh: Pisces
Height: 1.88 m
Education: Drop Out, San Jose State University

Jan Koum was bornon 24 February 1976 in Kiev, Ukraine, United States, is CEO, cofounder, WhatsApp Inc.. Jan Koum is #163 in List Billionaires People In The World. Jan Koum cofounded WhatsApp, now the world's biggest mobile messaging service, in 2009. Facebook bought the startup for $22 billion in cash and stock in 2014; Koum sits on Facebook's board. Koum worked at Yahoo for nearly nine years before leaving to found WhatsApp. In October 2014, Koum donated $555 million of Facebook shares to the Silicon Valley Community Foundation.


$7.6 Billion


$7.7 Billion


$8.8 Billion


$9 Billion


$9.14 Billion

I want to do one thing and do it well.

Jan Koum

Over the first half of 2016, Koum sold more than $2


In November 2014, Koum donated one million dollars to The FreeBSD Foundation, and close to $556 million to the Silicon Valley Community Foundation (SVCF) the same year


Facebook's founder Mark Zuckerberg first contacted Koum in the spring 2012


Koum almost immediately chose the name WhatsApp because it sounded like "what's up", and a week later on his birthday, February 24, 2009, he incorporated WhatsApp Inc


In September 2007 Koum and Acton left Yahoo and took a year off, traveling around South America and playing ultimate frisbee


In 1997, Jan Koum was hired by Yahoo as an infrastructure engineer, shortly after he met Brian Acton while working at Ernst & Young as a security tester


In February 1996, a restraining order was granted against Koum in state court in San Jose, California


He grew up in Fastiv, outside Kiev, and moved with his mother and grandmother to Mountain View, California in 1992, where a social support program helped the family to get a small two-bedroom apartment, at the age of 16


Jan Koum (Ukrainian: Ян Кум; born February 24, 1976) is a Ukrainian-American internet inventor and computer programmer

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