Did you know?
Shaq has made more money from endorsements and business than his entire NBA salary.
Did you know?
Shaq has made more money from endorsements and business than his entire NBA salary.
The Slack founder turned billionaire went from a failed photo-sharing app (Flickr) to creating a workplace communication platform worth $27 billion at IPO. His 10% stake in Slack alone generated roughly $3.2 billion in value, making him one of tech's most successful serial entrepreneurs.
Where the Money Comes From
Estimated Total
$1.3B
Current Net Worth
$1.2B
What They Kept
96%
How Much Does Stewart Butterfield Make?
$120.0M
Per Year
$10.0M
Per Month
$2.3M
Per Week
$328,767
Per Day
$13,699
Per Hour
$228.31
Per Minute
Estimated based on net worth of $1.2B over career span. Actual earnings vary by year.
Why $1.2B is above expected
Stewart Butterfield represents the rare breed of tech entrepreneur who can successfully pivot after a major setback. While Flickr's 2005 sale to Yahoo for $25-35 million seemed impressive, it paled in comparison to what he'd build next. Slack's 2019 direct listing fundamentally validated his vision: workplace communication was worth tens of billions, and his 10% ownership stake catapulted him into billionaire territory almost overnight.
His net worth is heavily concentrated in Slack equity, which creates both opportunity and risk. Since Salesforce's $27.7 billion acquisition of Slack in 2021, Butterfield's ownership has been adjusted through the deal structure, but his substantial stake remains the primary wealth driver. The acquisition actually demonstrated market validation rather than dilution—his vision was so valuable that enterprise software's largest player paid premium prices to integrate his platform.
What separates Butterfield from one-hit wonders is his operational discipline and product philosophy. He resisted growth-at-all-costs pressures, maintained profitability concerns even as a high-growth SaaS company, and ultimately sold at the peak of Slack's market dominance. His early angel investments in companies like Airbnb, Yelp, and others show pattern recognition skills that extend beyond his own ventures, suggesting future wealth accumulation through portfolio appreciation.
How Does Butterfield Compare?
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$1.2B
Net Worth Breakdown
Fame ≠ Fortune
The Thread
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Test Yourself
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James Jebbia
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Pablo Escobar
At his peak, Escobar was spending $2,500 per month just on rubber bands to wrap his cash. His cartel was earning $420 million a week. He offered to pay off Colombia's entire national debt — $10 billion — in exchange for immunity.
Harvey Firestone
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