Claim profile

Jan Koum

Ukrainian-born American entrepreneur, co-founder of WhatsApp

  • Fame59.2
  • Momentum11.9
  • Wikipedia29.2K
Claim profile
Source-basedRising
Born 1976 · age 50United States
United States flagUnited StatesUA flagScientistsScientist

Verify ownership in 2 minutes. Keeps the profile accurate and discoverable.

  • Wikipedia
    33 languages
    Cross-language footprint
  • Age
    50
    Born 1976
Summary
Updated 2026-08-28

Jan Borysovych Koum is an American billionaire businessman and computer programmer. He is the co-founder and former CEO of WhatsApp, a mobile messaging app which was acquired by Facebook in 2014 for US$19.3 billion. According to Forbes, he has an estimated net worth of US$15.2 billion as of October 2023, making him one of the richest people in the world. Koum was ranked 44th on the Forbes' list of richest Americans in 2023 with a net worth of $15.1 billion.

Deep cuts

Net worth

Low confidence
$17.0Bestimated · 2026
▲ 5%vs 2024
$16.1B2024$16.5B*2025*$17.0B2026
Forbes* estimated (interpolated between sourced years)

Figures are rough estimates and may be inaccurate. Not financial advice.

By the numbers

Score breakdown

The six component signals behind the Fame score, and their ranks across the leaderboards.

Fame
Rising
59.2
Composite of search demand, mentions, audience & graph footprint.
Score components
Momentum11.9
Historical21.4
Now attention42.8
Source confidence75.0
Completeness85.0
Global rank
—
Country rank
—
Category rank
—
Receipts

Sources

  • Jan Koum
    wikipedia · simple.wikipedia.org
    Low confidence
  • جان كوم
    wikipedia · ar.wikipedia.org
    Low confidence
  • Yan Kum
    wikipedia · az.wikipedia.org
    Low confidence