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Michael Seibel

YC; founder-stage operating playbook

Y Combinator Group Partner and former CEO, and co-founder of Twitch (originally Justin.tv), known for practical frameworks for building and advising early-stage startups.

#21Venture Investors by Framework
59/ 100
Authority scoreEstablished
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07
Top 100 Venture Investors by Framework
Rank #21·YC; founder-stage operating playbook
Appears alongside

Top neighbors of Michael Seibel

8people
01
Aileen Lee
Cowboy; "unicorn" coiner, Cambrian-explosion essays
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02
Albert Wenger
USV; World After Capital, attention-economy thesis
1shared list
03
Alfred Lin
Sequoia; Zappos-COO turned investor; ops-as-moat
1shared list
04
Andy Rachleff
Benchmark co-founder; product-market fit term coiner
1shared list
05
Ann Miura-Ko
Floodgate; market-disequilibrium thesis
1shared list
06
Anu Hariharan
Avra; ex-YC growth lead; growth-stage frameworks
1shared list
07
Arthur Rock
original VC; people-first investing (legacy founder-of-VC)
1shared list
08
Avichal Garg
Electric Capital; crypto-developer-report thesis
1shared list
Last updated
10 May 2026
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