Jan Koum
Business Leader2 list appearances
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.
1-Tap Primary Ranking Ballot
Overview#1 Full List
Does Jan Koum deserve the #1 spot on “Top 10 Tech Billionaires Who Dropped Out and Won”?
#1 Jan Koum?
Verified Entity DossierRanked #1 in Top 10 Tech Billionaires Who Dropped Out and Won
Best Rank
#1
top 3 in 1 list
Avg Position
#3
across 2 lists
Community
#1 Pick
avg #3 overall
Strongest in Technology — avg #1 across 1 list
Community Weigh-In & Debate
Should Jan Koum rank Top 3 in Tech Billionaires Who Dropped Out and Won?
Ranked #1 on "Top 10 Tech Billionaires Who Dropped Out and Won". Cast your vote to back or challenge this spot.
Be the first to vote on this ranking.
Most Argued About
“Top 10 Billionaires Who Built Empires from Nothing — Their Shocking Rise”
Ranks as high as #1 on some lists — but only #5 here. Fans are divided.
See the debate →The Internet's Surprise Pick
“Top 10 Tech Billionaires Who Dropped Out and Won”
Climbed to #1 — a narrowly contested win.
See the full ranking →Also ranked in
Frequently Asked Questions
What is Jan Koum's highest community ranking?⌄
Jan Koum is ranked #1 on "Top 10 Tech Billionaires Who Dropped Out and Won" — its best placement across 2 lists on top10grid.com.
How many top-10 lists feature Jan Koum?⌄
Jan Koum appears in 2 lists on top10grid.com, spanning categories including TECHNOLOGY, FINANCE.
Is Jan Koum a controversial ranking?⌄
Yes — community opinion on Jan Koum varies widely. It ranks as high as #1 on some lists and as low as #5 on others, a spread of 4 positions, making it one of the more debated picks on top10grid.com.
What category is Jan Koum most known for on top10grid.com?⌄
Jan Koum appears most frequently in the TECHNOLOGY category, most notably in "Top 10 Tech Billionaires Who Dropped Out and Won".
What the internet says
Appears in 2 lists #1 Pick
Frequently Ranked Alongside Jan Koum
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