The Alumni Mafia

Visualizing the most valuable companies founded by former employees of Big Tech, sized by market cap and valuation.

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The Meta Mafia

Companies co-founded by Meta / Facebook alumni

The Google Mafia

Companies co-founded by Google / Alphabet alumni
Market cap / valuation data as of February 2026. Bubble area is proportional to valuation.
A company qualifies if any co-founder previously worked at the parent company.
Sources: CompaniesMarketCap, Crunchbase, TechCrunch, Bloomberg, SEC filings.