Startup mafias.
Alumni networks of every breakout company — who learned from whom, and what they're building next. Three lenses: the lineage map, the conversion rankings, and a chart for every documented mafia.
How founders spread from one company to the next.
Click any blue or yellow node to open that mafia's chart. Edge styles separate founder, employee, acquisition/spinout and investor links.
How they rank — unicorns vs revenue scale.
Two ways to score a mafia: by the unicorns its alumni produce, or by the $100M+ revenue companies (a tougher bar, no valuation hype). Toggle outcome, narrow the cohort, change sort.
% of alumni startups (raised ≥$1M) that reached $100M+ revenue — a durability bar harder to fake.
Every documented mafia.
One chart per company, ranked by alumni-founded scale (combined enterprise value). Filter by region or search to narrow.
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Track every founder, every alumni path.
The full Dealroom platform unlocks live founder profiles, company histories and the complete alumni graph behind every mafia on this page.