BillionaireNet
Koum
Jan Koum
Rank #143
UNITED STATEStechnologyWhatsApp

Jan Koum

Net Worth
$17.151B
+0.32% (24h)
Jan Koum is a Ukrainian-American billionaire businessman and computer programmer, best known as the co-founder and former CEO of WhatsApp, the global messaging service. Born in Kyiv, Ukraine, Koum immigrated to the United States at the age of 16. His vision for a secure and private messaging app led to the creation of WhatsApp, which was acquired by Facebook in 2014. Koum's entrepreneurial journey, from humble beginnings to building a multi-billion dollar enterprise, has made him one of the richest people in the world, with a net worth primarily derived from WhatsApp and subsequent investments.

The Full Dossier

Early Life

Jan Borysovych Koum was born in Kyiv, Ukraine, on February 24, 1976, into a Jewish family. At the age of 16, he immigrated to the United States with his mother and grandmother, settling in Mountain View, California. His father remained in Ukraine. Koum's early life was marked by financial challenges; his family relied on government assistance.

Rise to Success

Koum's interest in computer programming began in his teens, and he taught himself the skills needed to succeed in the tech world. After working as a security tester at Ernst & Young and later as an infrastructure engineer at Yahoo!, Koum, along with Brian Acton, co-founded WhatsApp in 2009. The app quickly gained popularity for its simplicity and focus on privacy. In 2014, Facebook acquired WhatsApp for $19 billion. Koum served as CEO of WhatsApp until 2018.

Key Business Strategies

WhatsApp's success was driven by a focus on user experience, speed, and reliability. Koum prioritized building a simple, ad-free platform that valued user privacy, which distinguished WhatsApp from its competitors. This strategy, along with a strong emphasis on global reach and mobile-first design, fueled the app's rapid expansion.

Philanthropy

Koum has been involved in various philanthropic initiatives, primarily focused on Jewish causes and technological projects. He has made significant donations to Jewish organizations and causes in the United States, Eastern Europe, and Israel.

Career Timeline

2018

Left Facebook

Resigned as CEO of WhatsApp and left Facebook's board.

2014

WhatsApp Acquired by Facebook

WhatsApp was acquired by Facebook for $19 billion.

2009

Founded WhatsApp

Co-founded WhatsApp, a mobile messaging app.

1997

Joined Yahoo!

Began working as an infrastructure engineer at Yahoo!.

Philanthropic Impact

Humanitarian Aid$17M

European Jewish Association

Donation to support relief efforts during the 2022 Russian invasion of Ukraine.

Humanitarian Aid$10.6M

Federation of Jewish Communities of the CIS

Donation for relief efforts during the 2022 Russian invasion of Ukraine.

Political Campaign$2M

AIPAC

Donation to the American Israel Public Affairs Committee's campaign committee.

Education$41M

Stanford University

Donations over time to Stanford University.

Wealth Trajectory