Mode VC
California

SOSV SF & NY (Fka IndieBio)

SOSV SF & NY, based in California, backs Pre-Seed deep tech and life science startups, leading rounds with checks from $500k to $1m.

Website
Entry stagePre-seed
Check size$500K to $1M
Leads roundsYes
FocusDeep tech, Life sciences, Healthtech, Climate, Food and ag, Industrial
Latest fundn/a
Investing team2 peopleNo activity since Sep

Who you would pitch at SOSV SF & NY (Fka IndieBio)

2 people on the investing team, 2 of them partners who can make the call. Partners are listed first.

Po BronsonGeneral Partner & Managing Director, SOSV SFHe previously worked as a science journalist, a futurist, and in finance and consulting.
Stephen ChambersGeneral Partner & Managing Director, SOSV NYHe has experience as a scientist at Vertex Pharmaceuticals and as CEO of SynbiCITE.

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Writes $500K to $1M checks. Its smallest check is larger than 71% of firms in the atlas.

Bars: how many firms in the atlas report each band. Highlighted: this firm.

No recent activity since September 2026. Quiet does not mean closed.

Weekly count of activity updates. Activity is not a confirmed deal.

Before you pitch

Ownership target10-12%

Notable investments

Cayuga BiotechHoofprint BiomePuna BioAfyniaProton Intelligence

In their words

Homepage - IndieBio - #1 in Early Stage Biotechindiebio.co
Founders and investors at a Mode VC gathering

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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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Alert me when SOSV SF & NY (Fka IndieBio) is active

One email when this firm shows new activity. Nothing else.

Firms like SOSV SF & NY (Fka IndieBio)

Better Ventures$500K to $1M
SOSV$500K to $1M
The Engine$250K to $10M · active Sep 22
Bluelake$250K to $3M
Fifty YearsCheck size not reported
Elm Street Ventures$500K to $1M

On these lists

Pre-seed deep tech investors in California52Pre-seed healthtech investors in California48Pre-seed climate investors in California44Pre-seed industrial investors in California39Pre-seed life sciences investors in California30Pre-seed food and ag investors in California11Pre-seed investors in United States1561Pre-seed investors in California434

Questions

What stage does SOSV SF & NY (Fka IndieBio) invest in?

SOSV SF & NY (Fka IndieBio) reports entry at pre-seed.

How much does SOSV SF & NY (Fka IndieBio) invest?

SOSV SF & NY (Fka IndieBio) reports checks of $500K to $1M.

Does SOSV SF & NY (Fka IndieBio) lead rounds?

Yes. SOSV SF & NY (Fka IndieBio) says it can lead.

Who are the partners at SOSV SF & NY (Fka IndieBio)?

Po Bronson (General Partner & Managing Director, SOSV SF), Stephen Chambers (General Partner & Managing Director, SOSV NY).

Is SOSV SF & NY (Fka IndieBio) active right now?

No recent activity since September 2026.

Work at SOSV SF & NY (Fka IndieBio)? Claim or correct this profile.