Seth Bannon

Seth Bannon

Founding Partner atFifty YearsCalifornia

Seth Bannon is a Founding Partner at Fifty Years, an investor and entrepreneur who helps scientists and engineers become founders. He has seeded startups like Solugen, Astranis, Upside Foods, Athelas, and Opentrons.

What Seth can write

Writes checks ofNot reported
Comes in atPre-seed, SeedLead preference not reported
Email the firm[email protected]The firm's own inbox for founders.

Career

  1. Amicus · founder & CEO
  2. Y Combinator
  3. Impact.Tech · co-founder
  4. Fifty Years · Founding Partner
    Now

Companies founded

AmicusImpact.Tech

Investments named in public bios

SolugenAstranisUpside FoodsAthelasOpentronsSubstack

Focus

startupssustainable chemicalssatellitescultured meathealthcare ostechnology

Education

Y Combinator

Also at Fifty Years

Partners like Seth

At firms with a similar stage, sector and check size.

Alert me when Fifty Years is active

One email when Seth's firm raises a fund, adds a partner or shows new activity.

Founders and investors at a Mode VC gathering

Send Mode VC your deck

Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.

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Questions

Who is Seth Bannon?

Seth Bannon is a Founding Partner at Fifty Years, an investor and entrepreneur who helps scientists and engineers become founders. He has seeded startups like Solugen, Astranis, Upside Foods, Athelas, and Opentrons.

How much does Seth Bannon invest?

Fifty Years has not reported a check size. It invests at pre-seed, seed.

How do I pitch Seth Bannon?

Email [email protected], the firm's inbox for founders, and name Seth in the subject. A warm intro from a founder Fifty Years backed works better.

What did Seth Bannon do before Fifty Years?

founder & CEO at Amicus; Y Combinator; co-founder at Impact.Tech.

Last updated 2026-10-15. Is this you? Ask for a correction.