People

Seth Bannon

Founding Partner at Fifty Years

San Francisco, California

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Founding Partner of Fifty Years. Entrepreneur and investor who helped seed companies including Solugen, Astranis, Upside Foods, Athelas, and Opentrons. Previously founder and CEO of Amicus; Y Combinator alum.

Current affiliation

Fifty Years · Founding Partner

Investment range

$400K – $1M

Sweet spot

$1M

Investments on record

37

Investments

$4M2026-04-14	Wafer	Fifty Years, Seth Bannon, Y Combinator, Liquid 2 Ventures
$27M2026-02	Flux	Seth Bannon, Ela Madej
$252M2026-01-15	Merge Labs	Bain Capital, OpenAI, Interface Fund, Julia Prakapovich, Fifty Years, Seth Bannon, Gabe Newell, Interface Capital, Sequoia Scout Fund, OpenAI, Day One Ventures
$55M2025-11	Gridware	Seth Bannon
$60M2025-10	Blueprint Bryan Johnson	Seth Bannon, Kevin Hartz
$16M2025-06-04	Vercept	Fifty Years, Seth Bannon, Eric Schmidt
$16M2025-06	Vercept	Seth Bannon, Eric Schmidt
$—2023-09-25	Elicit	Fifty Years, Seth Bannon, Basis Set Ventures
$10M2023-06-13	Gridware	Fifty Years, Seth Bannon, Wireframe Ventures, Lowercarbon Capital, Liquid 2 Ventures, Kindergarten Ventures, Convective Capital
$11M2023-06	Gridware	Seth Bannon

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