5 Global Startup Networks More Impactful Than “That Mafia” Let’s retire the overhyped “PayPal Mafia” term—and look at real alumni networks quietly shaping the startup world. Here are 5 global tech companies whose ex-employees went on to build impactful ventures across borders and sectors: 1. LinkedIn – From Superhuman to Notion, ex-LinkedIn folks are rewriting productivity and AI. The company’s culture of networking is now a global founder flywheel. 2. Stripe – Climate tech, dev tools, fintech infra—Stripe alumni are everywhere. Backed by an ecosystem that bets on its own. 3. Palantir – Anduril, IronClad, and ElevenLabs came from here. Deeptech + defense + enterprise, with billions in capital raised. 4. Trilogy Software – A 90s Texas-based company whose alumni went on to found 80+ companies. Quiet influence, loud results. 5. Rappi – In LatAm, Rappi’s ex-employees are now solving logistics, lending, and delivery with local-first startups.
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